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 1.166 2004/04/01 00:38:45 sam Exp $
  35  * $DragonFly: src/sys/dev/netif/wi/if_wi.c,v 1.20 2005/02/11 22:25:56 joerg 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 <sys/param.h>
  71 #include <sys/endian.h>
  72 #include <sys/systm.h>
  73 #include <sys/sockio.h>
  74 #include <sys/mbuf.h>
  75 #include <sys/proc.h>
  76 #include <sys/kernel.h>
  77 #include <sys/socket.h>
  78 #include <sys/module.h>
  79 #include <sys/bus.h>
  80 #include <sys/random.h>
  81 #include <sys/syslog.h>
  82 #include <sys/sysctl.h>
  83
  84 #include <machine/bus.h>
  85 #include <machine/resource.h>
  86 #include <machine/clock.h>
  87 #include <machine/atomic.h>
  88 #include <sys/rman.h>
  89
  90 #include <net/if.h>
  91 #include <net/if_arp.h>
  92 #include <net/ethernet.h>
  93 #include <net/if_dl.h>
  94 #include <net/if_media.h>
  95 #include <net/if_types.h>
  96 #include <net/ifq_var.h>
  97
  98 #include <netproto/802_11/ieee80211_var.h>
  99 #include <netproto/802_11/ieee80211_ioctl.h>
 100 #include <netproto/802_11/ieee80211_radiotap.h>
 101 #include <netproto/802_11/if_wavelan_ieee.h>
 102
 103 #include <netinet/in.h>
 104 #include <netinet/in_systm.h>
 105 #include <netinet/in_var.h>
 106 #include <netinet/ip.h>
 107 #include <netinet/if_ether.h>
 108
 109 #include <net/bpf.h>
 110
 111 #include <dev/netif/wi/if_wireg.h>
 112 #include <dev/netif/wi/if_wivar.h>
 113
 114 static void wi_start(struct ifnet *);
 115 static int  wi_reset(struct wi_softc *);
 116 static void wi_watchdog(struct ifnet *);
 117 static int  wi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
 118 static int  wi_media_change(struct ifnet *);
 119 static void wi_media_status(struct ifnet *, struct ifmediareq *);
 120
 121 static void wi_rx_intr(struct wi_softc *);
 122 static void wi_tx_intr(struct wi_softc *);
 123 static void wi_tx_ex_intr(struct wi_softc *);
 124 static void wi_info_intr(struct wi_softc *);
 125
 126 static int  wi_get_cfg(struct ifnet *, u_long, caddr_t, struct ucred *);
 127 static int  wi_set_cfg(struct ifnet *, u_long, caddr_t);
 128 static int  wi_write_txrate(struct wi_softc *);
 129 static int  wi_write_wep(struct wi_softc *);
 130 static int  wi_write_multi(struct wi_softc *);
 131 static int  wi_alloc_fid(struct wi_softc *, int, int *);
 132 static void wi_read_nicid(struct wi_softc *);
 133 static int  wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
 134
 135 static int  wi_cmd(struct wi_softc *, int, int, int, int);
 136 static int  wi_seek_bap(struct wi_softc *, int, int);
 137 static int  wi_read_bap(struct wi_softc *, int, int, void *, int);
 138 static int  wi_write_bap(struct wi_softc *, int, int, void *, int);
 139 static int  wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
 140 static int  wi_read_rid(struct wi_softc *, int, void *, int *);
 141 static int  wi_write_rid(struct wi_softc *, int, void *, int);
 142
 143 static int  wi_newstate(struct ieee80211com *, enum ieee80211_state, int);
 144
 145 static int  wi_scan_ap(struct wi_softc *, u_int16_t, u_int16_t);
 146 static void wi_scan_result(struct wi_softc *, int, int);
 147
 148 static void wi_dump_pkt(struct wi_frame *, struct ieee80211_node *, int rssi);
 149
 150 static int wi_get_debug(struct wi_softc *, struct wi_req *);
 151 static int wi_set_debug(struct wi_softc *, struct wi_req *);
 152
 153 /* support to download firmware for symbol CF card */
 154 static int wi_symbol_write_firm(struct wi_softc *, const void *, int,
 155                 const void *, int);
 156 static int wi_symbol_set_hcr(struct wi_softc *, int);
 157
 158 static __inline int
 159 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val)
 160 {
 161
 162         val = htole16(val);
 163         return wi_write_rid(sc, rid, &val, sizeof(val));
 164 }
 165
 166 SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, "Wireless driver parameters");
 167
 168 static  struct timeval lasttxerror;     /* time of last tx error msg */
 169 static  int curtxeps;                   /* current tx error msgs/sec */
 170 static  int wi_txerate = 0;             /* tx error rate: max msgs/sec */
 171 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate,
 172             0, "max tx error msgs/sec; 0 to disable msgs");
 173
 174 #define WI_DEBUG
 175 #ifdef WI_DEBUG
 176 static  int wi_debug = 0;
 177 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug,
 178             0, "control debugging printfs");
 179
 180 #define DPRINTF(X)      if (wi_debug) printf X
 181 #define DPRINTF2(X)     if (wi_debug > 1) printf X
 182 #define IFF_DUMPPKTS(_ifp) \
 183         (((_ifp)->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2))
 184 #else
 185 #define DPRINTF(X)
 186 #define DPRINTF2(X)
 187 #define IFF_DUMPPKTS(_ifp)      0
 188 #endif
 189
 190 #define WI_INTRS        (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
 191
 192 struct wi_card_ident wi_card_ident[] = {
 193         /* CARD_ID                      CARD_NAME               FIRM_TYPE */
 194         { WI_NIC_LUCENT_ID,             WI_NIC_LUCENT_STR,      WI_LUCENT },
 195         { WI_NIC_SONY_ID,               WI_NIC_SONY_STR,        WI_LUCENT },
 196         { WI_NIC_LUCENT_EMB_ID,         WI_NIC_LUCENT_EMB_STR,  WI_LUCENT },
 197         { WI_NIC_EVB2_ID,               WI_NIC_EVB2_STR,        WI_INTERSIL },
 198         { WI_NIC_HWB3763_ID,            WI_NIC_HWB3763_STR,     WI_INTERSIL },
 199         { WI_NIC_HWB3163_ID,            WI_NIC_HWB3163_STR,     WI_INTERSIL },
 200         { WI_NIC_HWB3163B_ID,           WI_NIC_HWB3163B_STR,    WI_INTERSIL },
 201         { WI_NIC_EVB3_ID,               WI_NIC_EVB3_STR,        WI_INTERSIL },
 202         { WI_NIC_HWB1153_ID,            WI_NIC_HWB1153_STR,     WI_INTERSIL },
 203         { WI_NIC_P2_SST_ID,             WI_NIC_P2_SST_STR,      WI_INTERSIL },
 204         { WI_NIC_EVB2_SST_ID,           WI_NIC_EVB2_SST_STR,    WI_INTERSIL },
 205         { WI_NIC_3842_EVA_ID,           WI_NIC_3842_EVA_STR,    WI_INTERSIL },
 206         { WI_NIC_3842_PCMCIA_AMD_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 207         { WI_NIC_3842_PCMCIA_SST_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 208         { WI_NIC_3842_PCMCIA_ATL_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 209         { WI_NIC_3842_PCMCIA_ATS_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 210         { WI_NIC_3842_MINI_AMD_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 211         { WI_NIC_3842_MINI_SST_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 212         { WI_NIC_3842_MINI_ATL_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 213         { WI_NIC_3842_MINI_ATS_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 214         { WI_NIC_3842_PCI_AMD_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 215         { WI_NIC_3842_PCI_SST_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 216         { WI_NIC_3842_PCI_ATS_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 217         { WI_NIC_3842_PCI_ATL_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 218         { WI_NIC_P3_PCMCIA_AMD_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 219         { WI_NIC_P3_PCMCIA_SST_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 220         { WI_NIC_P3_PCMCIA_ATL_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 221         { WI_NIC_P3_PCMCIA_ATS_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 222         { WI_NIC_P3_MINI_AMD_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 223         { WI_NIC_P3_MINI_SST_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 224         { WI_NIC_P3_MINI_ATL_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 225         { WI_NIC_P3_MINI_ATS_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 226         { 0,    NULL,   0 },
 227 };
 228
 229 devclass_t wi_devclass;
 230
 231 int
 232 wi_attach(device_t dev)
 233 {
 234         struct wi_softc *sc = device_get_softc(dev);
 235         struct ieee80211com *ic = &sc->sc_ic;
 236         struct ifnet *ifp = &ic->ic_if;
 237         int i, nrates, buflen;
 238         u_int16_t val;
 239         u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE];
 240         struct ieee80211_rateset *rs;
 241         static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = {
 242                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 243         };
 244         int error;
 245
 246         /*
 247          * NB: no locking is needed here; don't put it here
 248          *     unless you can prove it!
 249          */
 250         error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
 251             wi_intr, sc, &sc->wi_intrhand);
 252
 253         if (error) {
 254                 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
 255                 wi_free(dev);
 256                 return (error);
 257         }
 258
 259         sc->wi_cmd_count = 500;
 260         /* Reset the NIC. */
 261         if (wi_reset(sc) != 0)
 262                 return ENXIO;           /* XXX */
 263
 264         /*
 265          * Read the station address.
 266          * And do it twice. I've seen PRISM-based cards that return
 267          * an error when trying to read it the first time, which causes
 268          * the probe to fail.
 269          */
 270         buflen = IEEE80211_ADDR_LEN;
 271         error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 272         if (error != 0) {
 273                 buflen = IEEE80211_ADDR_LEN;
 274                 error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 275         }
 276         if (error || IEEE80211_ADDR_EQ(ic->ic_myaddr, empty_macaddr)) {
 277                 if (error != 0)
 278                         device_printf(dev, "mac read failed %d\n", error);
 279                 else
 280                         device_printf(dev, "mac read failed (all zeros)\n");
 281                 wi_free(dev);
 282                 return (error);
 283         }
 284
 285         /* Read NIC identification */
 286         wi_read_nicid(sc);
 287
 288         ifp->if_softc = sc;
 289         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 290         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 291         ifp->if_ioctl = wi_ioctl;
 292         ifp->if_start = wi_start;
 293         ifp->if_watchdog = wi_watchdog;
 294         ifp->if_init = wi_init;
 295         ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
 296         ifq_set_ready(&ifp->if_snd);
 297 #ifdef DEVICE_POLLING
 298         ifp->if_capabilities |= IFCAP_POLLING;
 299 #endif
 300         ifp->if_capenable = ifp->if_capabilities;
 301
 302         ic->ic_phytype = IEEE80211_T_DS;
 303         ic->ic_opmode = IEEE80211_M_STA;
 304         ic->ic_caps = IEEE80211_C_PMGT | IEEE80211_C_AHDEMO;
 305         ic->ic_state = IEEE80211_S_INIT;
 306
 307         /*
 308          * Query the card for available channels and setup the
 309          * channel table.  We assume these are all 11b channels.
 310          */
 311         buflen = sizeof(val);
 312         if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
 313                 val = htole16(0x1fff);  /* assume 1-11 */
 314         KASSERT(val != 0, ("wi_attach: no available channels listed!"));
 315
 316         val <<= 1;                      /* shift for base 1 indices */
 317         for (i = 1; i < 16; i++) {
 318                 if (isset((u_int8_t*)&val, i)) {
 319                         ic->ic_channels[i].ic_freq =
 320                                 ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
 321                         ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B;
 322                 }
 323         }
 324
 325         /*
 326          * Read the default channel from the NIC. This may vary
 327          * depending on the country where the NIC was purchased, so
 328          * we can't hard-code a default and expect it to work for
 329          * everyone.
 330          *
 331          * If no channel is specified, let the 802.11 code select.
 332          */
 333         buflen = sizeof(val);
 334         if (wi_read_rid(sc, WI_RID_OWN_CHNL, &val, &buflen) == 0) {
 335                 val = le16toh(val);
 336                 KASSERT(val < IEEE80211_CHAN_MAX &&
 337                         ic->ic_channels[val].ic_flags != 0,
 338                         ("wi_attach: invalid own channel %u!", val));
 339                 ic->ic_ibss_chan = &ic->ic_channels[val];
 340         } else {
 341                 device_printf(dev,
 342                         "WI_RID_OWN_CHNL failed, using first channel!\n");
 343                 ic->ic_ibss_chan = &ic->ic_channels[0];
 344         }
 345
 346         /*
 347          * Set flags based on firmware version.
 348          */
 349         switch (sc->sc_firmware_type) {
 350         case WI_LUCENT:
 351                 sc->sc_ntxbuf = 1;
 352                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 353 #ifdef WI_HERMES_AUTOINC_WAR
 354                 /* XXX: not confirmed, but never seen for recent firmware */
 355                 if (sc->sc_sta_firmware_ver <  40000) {
 356                         sc->sc_flags |= WI_FLAGS_BUG_AUTOINC;
 357                 }
 358 #endif
 359                 if (sc->sc_sta_firmware_ver >= 60000)
 360                         sc->sc_flags |= WI_FLAGS_HAS_MOR;
 361                 if (sc->sc_sta_firmware_ver >= 60006) {
 362                         ic->ic_caps |= IEEE80211_C_IBSS;
 363                         ic->ic_caps |= IEEE80211_C_MONITOR;
 364                 }
 365                 sc->sc_ibss_port = htole16(1);
 366
 367                 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
 368                 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
 369                 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
 370                 break;
 371
 372         case WI_INTERSIL:
 373                 sc->sc_ntxbuf = WI_NTXBUF;
 374                 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR;
 375                 sc->sc_flags |= WI_FLAGS_HAS_ROAMING;
 376                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 377                 /*
 378                  * Old firmware are slow, so give peace a chance.
 379                  */
 380                 if (sc->sc_sta_firmware_ver < 10000)
 381                         sc->wi_cmd_count = 5000;
 382                 if (sc->sc_sta_firmware_ver > 10101)
 383                         sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
 384                 if (sc->sc_sta_firmware_ver >= 800) {
 385                         ic->ic_caps |= IEEE80211_C_IBSS;
 386                         ic->ic_caps |= IEEE80211_C_MONITOR;
 387                 }
 388                 /*
 389                  * version 0.8.3 and newer are the only ones that are known
 390                  * to currently work.  Earlier versions can be made to work,
 391                  * at least according to the Linux driver.
 392                  */
 393                 if (sc->sc_sta_firmware_ver >= 803)
 394                         ic->ic_caps |= IEEE80211_C_HOSTAP;
 395                 sc->sc_ibss_port = htole16(0);
 396
 397                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 398                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 399                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 400                 break;
 401
 402         case WI_SYMBOL:
 403                 sc->sc_ntxbuf = 1;
 404                 sc->sc_flags |= WI_FLAGS_HAS_DIVERSITY;
 405                 if (sc->sc_sta_firmware_ver >= 25000)
 406                         ic->ic_caps |= IEEE80211_C_IBSS;
 407                 sc->sc_ibss_port = htole16(4);
 408
 409                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 410                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 411                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 412                 break;
 413         }
 414
 415         /*
 416          * Find out if we support WEP on this card.
 417          */
 418         buflen = sizeof(val);
 419         if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
 420             val != htole16(0))
 421                 ic->ic_caps |= IEEE80211_C_WEP;
 422
 423         /* Find supported rates. */
 424         buflen = sizeof(ratebuf);
 425         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
 426         if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
 427                 nrates = le16toh(*(u_int16_t *)ratebuf);
 428                 if (nrates > IEEE80211_RATE_MAXSIZE)
 429                         nrates = IEEE80211_RATE_MAXSIZE;
 430                 rs->rs_nrates = 0;
 431                 for (i = 0; i < nrates; i++)
 432                         if (ratebuf[2+i])
 433                                 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
 434         } else {
 435                 /* XXX fallback on error? */
 436                 rs->rs_nrates = 0;
 437         }
 438
 439         buflen = sizeof(val);
 440         if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
 441             wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
 442                 sc->sc_dbm_offset = le16toh(val);
 443         }
 444
 445         sc->sc_max_datalen = 2304;
 446         sc->sc_system_scale = 1;
 447         sc->sc_cnfauthmode = IEEE80211_AUTH_OPEN;
 448         sc->sc_roaming_mode = 1;
 449
 450         sc->sc_portnum = WI_DEFAULT_PORT;
 451         sc->sc_authtype = WI_DEFAULT_AUTHTYPE;
 452
 453         bzero(sc->sc_nodename, sizeof(sc->sc_nodename));
 454         sc->sc_nodelen = sizeof(WI_DEFAULT_NODENAME) - 1;
 455         bcopy(WI_DEFAULT_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 456
 457         bzero(sc->sc_net_name, sizeof(sc->sc_net_name));
 458         bcopy(WI_DEFAULT_NETNAME, sc->sc_net_name,
 459             sizeof(WI_DEFAULT_NETNAME) - 1);
 460
 461         /*
 462          * Call MI attach routine.
 463          */
 464         ieee80211_ifattach(ifp);
 465         /* override state transition method */
 466         sc->sc_newstate = ic->ic_newstate;
 467         ic->ic_newstate = wi_newstate;
 468         ieee80211_media_init(ifp, wi_media_change, wi_media_status);
 469
 470         bpfattach_dlt(ifp, DLT_IEEE802_11_RADIO,
 471                 sizeof(struct ieee80211_frame) + sizeof(sc->sc_tx_th),
 472                 &sc->sc_drvbpf);
 473         /*
 474          * Initialize constant fields.
 475          * XXX make header lengths a multiple of 32-bits so subsequent
 476          *     headers are properly aligned; this is a kludge to keep
 477          *     certain applications happy.
 478          *
 479          * NB: the channel is setup each time we transition to the
 480          *     RUN state to avoid filling it in for each frame.
 481          */
 482         sc->sc_tx_th_len = roundup(sizeof(sc->sc_tx_th), sizeof(u_int32_t));
 483         sc->sc_tx_th.wt_ihdr.it_len = htole16(sc->sc_tx_th_len);
 484         sc->sc_tx_th.wt_ihdr.it_present = htole32(WI_TX_RADIOTAP_PRESENT);
 485
 486         sc->sc_rx_th_len = roundup(sizeof(sc->sc_rx_th), sizeof(u_int32_t));
 487         sc->sc_rx_th.wr_ihdr.it_len = htole16(sc->sc_rx_th_len);
 488         sc->sc_rx_th.wr_ihdr.it_present = htole32(WI_RX_RADIOTAP_PRESENT);
 489
 490         return (0);
 491 }
 492
 493 int
 494 wi_detach(device_t dev)
 495 {
 496         struct wi_softc *sc = device_get_softc(dev);
 497         struct ifnet *ifp = &sc->sc_ic.ic_if;
 498         WI_LOCK_DECL();
 499
 500         WI_LOCK(sc);
 501
 502         /* check if device was removed */
 503         sc->wi_gone |= !bus_child_present(dev);
 504
 505         wi_stop(ifp, 0);
 506
 507         ieee80211_ifdetach(ifp);
 508         WI_UNLOCK(sc);
 509         bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
 510         wi_free(dev);
 511         return (0);
 512 }
 513
 514 void
 515 wi_shutdown(device_t dev)
 516 {
 517         struct wi_softc *sc = device_get_softc(dev);
 518
 519         wi_stop(&sc->sc_if, 1);
 520 }
 521
 522 #ifdef DEVICE_POLLING
 523 static void
 524 wi_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
 525 {
 526         struct wi_softc *sc = ifp->if_softc;
 527         uint16_t status;
 528
 529         if ((ifp->if_capenable & IFCAP_POLLING) == 0) {
 530                 ether_poll_deregister(ifp);
 531                 cmd = POLL_DEREGISTER;
 532         }
 533         if (cmd == POLL_DEREGISTER) {
 534                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 535                 return;
 536         }
 537
 538         status = CSR_READ_2(sc, WI_EVENT_STAT);
 539
 540         if (status & WI_EV_RX)
 541                 wi_rx_intr(sc);
 542         if (status & WI_EV_ALLOC)
 543                 wi_tx_intr(sc);
 544         if (status & WI_EV_INFO)
 545                 wi_info_intr(sc);
 546
 547         if (cmd == POLL_AND_CHECK_STATUS) {
 548                 if (status & WI_EV_INFO)
 549                         wi_info_intr(sc);
 550         }
 551
 552         if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 553             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 && !ifq_is_empty(&ifp->if_snd))
 554                 wi_start(ifp);
 555 }
 556 #endif /* DEVICE_POLLING */
 557
 558 void
 559 wi_intr(void *arg)
 560 {
 561         struct wi_softc *sc = arg;
 562         struct ifnet *ifp = &sc->sc_ic.ic_if;
 563         u_int16_t status;
 564         WI_LOCK_DECL();
 565
 566 #ifdef DEVICE_POLLING
 567         if (ifp->if_flags & IFF_POLLING)
 568                 return;
 569         if ((ifp->if_capenable & IFCAP_POLLING) &&
 570             (ether_poll_register(wi_poll, ifp))) {
 571                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 572                 wi_poll(ifp, 0, 1);
 573                 return;
 574         }
 575 #endif /* DEVICE_POLLING */
 576
 577         if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) {
 578                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 579                 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
 580                 return;
 581         }
 582
 583         WI_LOCK(sc);
 584
 585         /* Disable interrupts. */
 586         CSR_WRITE_2(sc, WI_INT_EN, 0);
 587
 588         status = CSR_READ_2(sc, WI_EVENT_STAT);
 589         if (status & WI_EV_RX)
 590                 wi_rx_intr(sc);
 591         if (status & WI_EV_ALLOC)
 592                 wi_tx_intr(sc);
 593         if (status & WI_EV_TX_EXC)
 594                 wi_tx_ex_intr(sc);
 595         if (status & WI_EV_INFO)
 596                 wi_info_intr(sc);
 597         if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 598             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 &&
 599             !ifq_is_empty(&ifp->if_snd))
 600                 wi_start(ifp);
 601
 602         /* Re-enable interrupts. */
 603         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 604
 605         WI_UNLOCK(sc);
 606
 607         return;
 608 }
 609
 610 void
 611 wi_init(void *arg)
 612 {
 613         struct wi_softc *sc = arg;
 614         struct ifnet *ifp = &sc->sc_if;
 615         struct ieee80211com *ic = &sc->sc_ic;
 616         struct wi_joinreq join;
 617         int i;
 618         int error = 0, wasenabled;
 619         struct ifaddr *ifa;
 620         struct sockaddr_dl *sdl;
 621         WI_LOCK_DECL();
 622
 623         WI_LOCK(sc);
 624
 625         if (sc->wi_gone) {
 626                 WI_UNLOCK(sc);
 627                 return;
 628         }
 629
 630         if ((wasenabled = sc->sc_enabled))
 631                 wi_stop(ifp, 1);
 632         wi_reset(sc);
 633
 634         /* common 802.11 configuration */
 635         ic->ic_flags &= ~IEEE80211_F_IBSSON;
 636         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
 637         switch (ic->ic_opmode) {
 638         case IEEE80211_M_STA:
 639                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_BSS);
 640                 break;
 641         case IEEE80211_M_IBSS:
 642                 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_ibss_port);
 643                 ic->ic_flags |= IEEE80211_F_IBSSON;
 644                 break;
 645         case IEEE80211_M_AHDEMO:
 646                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 647                 break;
 648         case IEEE80211_M_HOSTAP:
 649                 /*
 650                  * For PRISM cards, override the empty SSID, because in
 651                  * HostAP mode the controller will lock up otherwise.
 652                  */
 653                 if (sc->sc_firmware_type == WI_INTERSIL &&
 654                     ic->ic_des_esslen == 0) {
 655                         ic->ic_des_essid[0] = ' ';
 656                         ic->ic_des_esslen = 1;
 657                 }
 658                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_HOSTAP);
 659                 break;
 660         case IEEE80211_M_MONITOR:
 661                 if (sc->sc_firmware_type == WI_LUCENT)
 662                         wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 663                 wi_cmd(sc, WI_CMD_DEBUG | (WI_TEST_MONITOR << 8), 0, 0, 0);
 664                 break;
 665         }
 666
 667         /* Intersil interprets this RID as joining ESS even in IBSS mode */
 668         if (sc->sc_firmware_type == WI_LUCENT &&
 669             (ic->ic_flags & IEEE80211_F_IBSSON) && ic->ic_des_esslen > 0)
 670                 wi_write_val(sc, WI_RID_CREATE_IBSS, 1);
 671         else
 672                 wi_write_val(sc, WI_RID_CREATE_IBSS, 0);
 673         wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
 674         wi_write_ssid(sc, WI_RID_DESIRED_SSID, ic->ic_des_essid,
 675             ic->ic_des_esslen);
 676         wi_write_val(sc, WI_RID_OWN_CHNL,
 677                 ieee80211_chan2ieee(ic, ic->ic_ibss_chan));
 678         wi_write_ssid(sc, WI_RID_OWN_SSID, ic->ic_des_essid, ic->ic_des_esslen);
 679
 680         ifa = ifaddr_byindex(ifp->if_index);
 681         sdl = (struct sockaddr_dl *) ifa->ifa_addr;
 682         IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(sdl));
 683         wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, IEEE80211_ADDR_LEN);
 684
 685         wi_write_val(sc, WI_RID_PM_ENABLED,
 686             (ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0);
 687
 688         /* not yet common 802.11 configuration */
 689         wi_write_val(sc, WI_RID_MAX_DATALEN, sc->sc_max_datalen);
 690         wi_write_val(sc, WI_RID_RTS_THRESH, ic->ic_rtsthreshold);
 691         if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
 692                 wi_write_val(sc, WI_RID_FRAG_THRESH, ic->ic_fragthreshold);
 693
 694         /* driver specific 802.11 configuration */
 695         if (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)
 696                 wi_write_val(sc, WI_RID_SYSTEM_SCALE, sc->sc_system_scale);
 697         if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
 698                 wi_write_val(sc, WI_RID_ROAMING_MODE, sc->sc_roaming_mode);
 699         if (sc->sc_flags & WI_FLAGS_HAS_MOR)
 700                 wi_write_val(sc, WI_RID_MICROWAVE_OVEN, sc->sc_microwave_oven);
 701         wi_write_txrate(sc);
 702         wi_write_ssid(sc, WI_RID_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 703
 704         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
 705             sc->sc_firmware_type == WI_INTERSIL) {
 706                 wi_write_val(sc, WI_RID_OWN_BEACON_INT, ic->ic_lintval);
 707                 wi_write_val(sc, WI_RID_BASIC_RATE, 0x03);   /* 1, 2 */
 708                 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0x0f); /* 1, 2, 5.5, 11 */
 709                 wi_write_val(sc, WI_RID_DTIM_PERIOD, 1);
 710         }
 711
 712         /*
 713          * Initialize promisc mode.
 714          *      Being in the Host-AP mode causes a great
 715          *      deal of pain if primisc mode is set.
 716          *      Therefore we avoid confusing the firmware
 717          *      and always reset promisc mode in Host-AP
 718          *      mode.  Host-AP sees all the packets anyway.
 719          */
 720         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
 721             (ifp->if_flags & IFF_PROMISC) != 0) {
 722                 wi_write_val(sc, WI_RID_PROMISC, 1);
 723         } else {
 724                 wi_write_val(sc, WI_RID_PROMISC, 0);
 725         }
 726
 727         /* Configure WEP. */
 728         if (ic->ic_caps & IEEE80211_C_WEP)
 729                 wi_write_wep(sc);
 730
 731         /* Set multicast filter. */
 732         wi_write_multi(sc);
 733
 734         /* Allocate fids for the card */
 735         if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) {
 736                 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
 737                 if (sc->sc_firmware_type == WI_SYMBOL)
 738                         sc->sc_buflen = 1585;   /* XXX */
 739                 for (i = 0; i < sc->sc_ntxbuf; i++) {
 740                         error = wi_alloc_fid(sc, sc->sc_buflen,
 741                             &sc->sc_txd[i].d_fid);
 742                         if (error) {
 743                                 device_printf(sc->sc_dev,
 744                                     "tx buffer allocation failed (error %u)\n",
 745                                     error);
 746                                 goto out;
 747                         }
 748                         sc->sc_txd[i].d_len = 0;
 749                 }
 750         }
 751         sc->sc_txcur = sc->sc_txnext = 0;
 752
 753         /* Enable desired port */
 754         wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
 755
 756         sc->sc_enabled = 1;
 757         ifp->if_flags |= IFF_RUNNING;
 758         ifp->if_flags &= ~IFF_OACTIVE;
 759         if (ic->ic_opmode == IEEE80211_M_AHDEMO ||
 760             ic->ic_opmode == IEEE80211_M_MONITOR ||
 761             ic->ic_opmode == IEEE80211_M_HOSTAP)
 762                 ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
 763
 764         /* Enable interrupts if not polling */
 765 #ifdef DEVICE_POLLING
 766         if ((ifp->if_flags & IFF_POLLING) == 0)
 767 #endif
 768                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 769
 770         if (!wasenabled &&
 771             ic->ic_opmode == IEEE80211_M_HOSTAP &&
 772             sc->sc_firmware_type == WI_INTERSIL) {
 773                 /* XXX: some card need to be re-enabled for hostap */
 774                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
 775                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
 776         }
 777
 778         if (ic->ic_opmode == IEEE80211_M_STA &&
 779             ((ic->ic_flags & IEEE80211_F_DESBSSID) ||
 780             ic->ic_des_chan != IEEE80211_CHAN_ANYC)) {
 781                 memset(&join, 0, sizeof(join));
 782                 if (ic->ic_flags & IEEE80211_F_DESBSSID)
 783                         IEEE80211_ADDR_COPY(&join.wi_bssid, ic->ic_des_bssid);
 784                 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC)
 785                         join.wi_chan = htole16(
 786                                 ieee80211_chan2ieee(ic, ic->ic_des_chan));
 787                 /* Lucent firmware does not support the JOIN RID. */
 788                 if (sc->sc_firmware_type != WI_LUCENT)
 789                         wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
 790         }
 791
 792         WI_UNLOCK(sc);
 793         return;
 794 out:
 795         if (error) {
 796                 if_printf(ifp, "interface not running\n");
 797                 wi_stop(ifp, 1);
 798         }
 799         WI_UNLOCK(sc);
 800         DPRINTF(("wi_init: return %d\n", error));
 801         return;
 802 }
 803
 804 void
 805 wi_stop(struct ifnet *ifp, int disable)
 806 {
 807         struct ieee80211com *ic = (struct ieee80211com *) ifp;
 808         struct wi_softc *sc = ifp->if_softc;
 809         WI_LOCK_DECL();
 810
 811         WI_LOCK(sc);
 812
 813         DELAY(100000);
 814
 815         ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
 816         if (sc->sc_enabled && !sc->wi_gone) {
 817                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 818                 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
 819                 if (disable) {
 820 #ifdef __NetBSD__
 821                         if (sc->sc_disable)
 822                                 (*sc->sc_disable)(sc);
 823 #endif
 824                         sc->sc_enabled = 0;
 825                 }
 826         } else if (sc->wi_gone && disable)      /* gone --> not enabled */
 827             sc->sc_enabled = 0;
 828
 829         sc->sc_tx_timer = 0;
 830         sc->sc_scan_timer = 0;
 831         sc->sc_syn_timer = 0;
 832         sc->sc_false_syns = 0;
 833         sc->sc_naps = 0;
 834         ifp->if_flags &= ~(IFF_OACTIVE | IFF_RUNNING);
 835 #ifdef DEVICE_POLLING
 836         ether_poll_deregister(ifp);
 837 #endif
 838         ifp->if_timer = 0;
 839
 840         WI_UNLOCK(sc);
 841 }
 842
 843 static void
 844 wi_start(struct ifnet *ifp)
 845 {
 846         struct wi_softc *sc = ifp->if_softc;
 847         struct ieee80211com *ic = &sc->sc_ic;
 848         struct ieee80211_node *ni;
 849         struct ieee80211_frame *wh;
 850         struct mbuf *m0;
 851         struct wi_frame frmhdr;
 852         int cur, fid, off, error;
 853         WI_LOCK_DECL();
 854
 855         WI_LOCK(sc);
 856
 857         if (sc->wi_gone) {
 858                 WI_UNLOCK(sc);
 859                 return;
 860         }
 861         if (sc->sc_flags & WI_FLAGS_OUTRANGE) {
 862                 WI_UNLOCK(sc);
 863                 return;
 864         }
 865
 866         memset(&frmhdr, 0, sizeof(frmhdr));
 867         cur = sc->sc_txnext;
 868         for (;;) {
 869                 IF_POLL(&ic->ic_mgtq, m0);
 870                 if (m0 != NULL) {
 871                         if (sc->sc_txd[cur].d_len != 0) {
 872                                 ifp->if_flags |= IFF_OACTIVE;
 873                                 break;
 874                         }
 875                         IF_DEQUEUE(&ic->ic_mgtq, m0);
 876                         /*
 877                          * Hack!  The referenced node pointer is in the
 878                          * rcvif field of the packet header.  This is
 879                          * placed there by ieee80211_mgmt_output because
 880                          * we need to hold the reference with the frame
 881                          * and there's no other way (other than packet
 882                          * tags which we consider too expensive to use)
 883                          * to pass it along.
 884                          */
 885                         ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
 886                         m0->m_pkthdr.rcvif = NULL;
 887
 888                         m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
 889                             (caddr_t)&frmhdr.wi_ehdr);
 890                         frmhdr.wi_ehdr.ether_type = 0;
 891                         wh = mtod(m0, struct ieee80211_frame *);
 892                 } else {
 893                         if (ic->ic_state != IEEE80211_S_RUN)
 894                                 break;
 895                         m0 = ifq_poll(&ifp->if_snd);
 896                         if (m0 == NULL)
 897                                 break;
 898                         if (sc->sc_txd[cur].d_len != 0) {
 899                                 ifp->if_flags |= IFF_OACTIVE;
 900                                 break;
 901                         }
 902                         m0 = ifq_dequeue(&ifp->if_snd);
 903                         ifp->if_opackets++;
 904                         m_copydata(m0, 0, ETHER_HDR_LEN,
 905                             (caddr_t)&frmhdr.wi_ehdr);
 906                         BPF_MTAP(ifp, m0);
 907
 908                         m0 = ieee80211_encap(ifp, m0, &ni);
 909                         if (m0 == NULL) {
 910                                 ifp->if_oerrors++;
 911                                 continue;
 912                         }
 913                         wh = mtod(m0, struct ieee80211_frame *);
 914                         if (ic->ic_flags & IEEE80211_F_WEPON)
 915                                 wh->i_fc[1] |= IEEE80211_FC1_WEP;
 916
 917                 }
 918
 919                 if (ic->ic_rawbpf != NULL)
 920                         bpf_mtap(ic->ic_rawbpf, m0);
 921
 922                 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 923                 if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
 924                     (wh->i_fc[1] & IEEE80211_FC1_WEP)) {
 925                         if ((m0 = ieee80211_wep_crypt(ifp, m0, 1)) == NULL) {
 926                                 ifp->if_oerrors++;
 927                                 if (ni && ni != ic->ic_bss)
 928                                         ieee80211_free_node(ic, ni);
 929                                 continue;
 930                         }
 931                         frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 932                 }
 933
 934                 if (sc->sc_drvbpf) {
 935                         sc->sc_tx_th.wt_rate =
 936                                 ni->ni_rates.rs_rates[ni->ni_txrate];
 937                         bpf_ptap(sc->sc_drvbpf, m0, &sc->sc_tx_th,
 938                                  sc->sc_tx_th_len);
 939                 }
 940
 941                 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 942                     (caddr_t)&frmhdr.wi_whdr);
 943                 m_adj(m0, sizeof(struct ieee80211_frame));
 944                 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 945                 if (IFF_DUMPPKTS(ifp))
 946                         wi_dump_pkt(&frmhdr, NULL, -1);
 947                 fid = sc->sc_txd[cur].d_fid;
 948                 off = sizeof(frmhdr);
 949                 error = wi_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0
 950                      || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
 951                 m_freem(m0);
 952                 if (ni && ni != ic->ic_bss)
 953                         ieee80211_free_node(ic, ni);
 954                 if (error) {
 955                         ifp->if_oerrors++;
 956                         continue;
 957                 }
 958                 sc->sc_txd[cur].d_len = off;
 959                 if (sc->sc_txcur == cur) {
 960                         if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
 961                                 if_printf(ifp, "xmit failed\n");
 962                                 sc->sc_txd[cur].d_len = 0;
 963                                 continue;
 964                         }
 965                         sc->sc_tx_timer = 5;
 966                         ifp->if_timer = 1;
 967                 }
 968                 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 969         }
 970
 971         WI_UNLOCK(sc);
 972 }
 973
 974 static int
 975 wi_reset(struct wi_softc *sc)
 976 {
 977         struct ieee80211com *ic = &sc->sc_ic;
 978         struct ifnet *ifp = &ic->ic_if;
 979 #define WI_INIT_TRIES 3
 980         int i;
 981         int error = 0;
 982         int tries;
 983
 984         /* Symbol firmware cannot be initialized more than once */
 985         if (sc->sc_firmware_type == WI_SYMBOL && sc->sc_reset)
 986                 return (0);
 987         if (sc->sc_firmware_type == WI_SYMBOL)
 988                 tries = 1;
 989         else
 990                 tries = WI_INIT_TRIES;
 991
 992         for (i = 0; i < tries; i++) {
 993                 if ((error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0)) == 0)
 994                         break;
 995                 DELAY(WI_DELAY * 1000);
 996         }
 997         sc->sc_reset = 1;
 998
 999         if (i == tries) {
1000                 if_printf(ifp, "init failed\n");
1001                 return (error);
1002         }
1003
1004         CSR_WRITE_2(sc, WI_INT_EN, 0);
1005         CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
1006
1007         /* Calibrate timer. */
1008         wi_write_val(sc, WI_RID_TICK_TIME, 8);
1009
1010         return (0);
1011 #undef WI_INIT_TRIES
1012 }
1013
1014 static void
1015 wi_watchdog(struct ifnet *ifp)
1016 {
1017         struct wi_softc *sc = ifp->if_softc;
1018
1019         ifp->if_timer = 0;
1020         if (!sc->sc_enabled)
1021                 return;
1022
1023         if (sc->sc_tx_timer) {
1024                 if (--sc->sc_tx_timer == 0) {
1025                         if_printf(ifp, "device timeout\n");
1026                         ifp->if_oerrors++;
1027                         wi_init(ifp->if_softc);
1028                         return;
1029                 }
1030                 ifp->if_timer = 1;
1031         }
1032
1033         if (sc->sc_scan_timer) {
1034                 if (--sc->sc_scan_timer <= WI_SCAN_WAIT - WI_SCAN_INQWAIT &&
1035                     sc->sc_firmware_type == WI_INTERSIL) {
1036                         DPRINTF(("wi_watchdog: inquire scan\n"));
1037                         wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
1038                 }
1039                 if (sc->sc_scan_timer)
1040                         ifp->if_timer = 1;
1041         }
1042
1043         if (sc->sc_syn_timer) {
1044                 if (--sc->sc_syn_timer == 0) {
1045                         struct ieee80211com *ic = (struct ieee80211com *) ifp;
1046                         DPRINTF2(("wi_watchdog: %d false syns\n",
1047                             sc->sc_false_syns));
1048                         sc->sc_false_syns = 0;
1049                         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1050                         sc->sc_syn_timer = 5;
1051                 }
1052                 ifp->if_timer = 1;
1053         }
1054
1055         /* TODO: rate control */
1056         ieee80211_watchdog(ifp);
1057 }
1058
1059 static int
1060 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1061 {
1062         struct wi_softc *sc = ifp->if_softc;
1063         struct ieee80211com *ic = &sc->sc_ic;
1064         struct ifreq *ifr = (struct ifreq *)data;
1065         struct ieee80211req *ireq;
1066         u_int8_t nodename[IEEE80211_NWID_LEN];
1067         int error = 0;
1068         struct wi_req wreq;
1069         WI_LOCK_DECL();
1070
1071         WI_LOCK(sc);
1072
1073         if (sc->wi_gone) {
1074                 error = ENODEV;
1075                 goto out;
1076         }
1077
1078         switch (cmd) {
1079         case SIOCSIFFLAGS:
1080                 /*
1081                  * Can't do promisc and hostap at the same time.  If all that's
1082                  * changing is the promisc flag, try to short-circuit a call to
1083                  * wi_init() by just setting PROMISC in the hardware.
1084                  */
1085                 if (ifp->if_flags & IFF_UP) {
1086                         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
1087                             ifp->if_flags & IFF_RUNNING) {
1088                                 if (ifp->if_flags & IFF_PROMISC &&
1089                                     !(sc->sc_if_flags & IFF_PROMISC)) {
1090                                         wi_write_val(sc, WI_RID_PROMISC, 1);
1091                                 } else if (!(ifp->if_flags & IFF_PROMISC) &&
1092                                     sc->sc_if_flags & IFF_PROMISC) {
1093                                         wi_write_val(sc, WI_RID_PROMISC, 0);
1094                                 } else {
1095                                         wi_init(sc);
1096                                 }
1097                         } else {
1098                                 wi_init(sc);
1099                         }
1100                 } else {
1101                         if (ifp->if_flags & IFF_RUNNING) {
1102                                 wi_stop(ifp, 1);
1103                         }
1104                         sc->wi_gone = 0;
1105                 }
1106                 sc->sc_if_flags = ifp->if_flags;
1107                 error = 0;
1108                 break;
1109         case SIOCADDMULTI:
1110         case SIOCDELMULTI:
1111                 error = wi_write_multi(sc);
1112                 break;
1113         case SIOCGIFGENERIC:
1114                 error = wi_get_cfg(ifp, cmd, data, cr);
1115                 break;
1116         case SIOCSIFGENERIC:
1117                 error = suser_cred(cr, NULL_CRED_OKAY);
1118                 if (error)
1119                         break;
1120                 error = wi_set_cfg(ifp, cmd, data);
1121                 break;
1122         case SIOCGPRISM2DEBUG:
1123                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1124                 if (error)
1125                         break;
1126                 if (!(ifp->if_flags & IFF_RUNNING) ||
1127                     sc->sc_firmware_type == WI_LUCENT) {
1128                         error = EIO;
1129                         break;
1130                 }
1131                 error = wi_get_debug(sc, &wreq);
1132                 if (error == 0)
1133                         error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
1134                 break;
1135         case SIOCSPRISM2DEBUG:
1136                 if ((error = suser_cred(cr, NULL_CRED_OKAY)))
1137                         goto out;
1138                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1139                 if (error)
1140                         break;
1141                 error = wi_set_debug(sc, &wreq);
1142                 break;
1143         case SIOCG80211:
1144                 ireq = (struct ieee80211req *) data;
1145                 switch (ireq->i_type) {
1146                 case IEEE80211_IOC_STATIONNAME:
1147                         ireq->i_len = sc->sc_nodelen + 1;
1148                         error = copyout(sc->sc_nodename, ireq->i_data,
1149                                         ireq->i_len);
1150                         break;
1151                 default:
1152                         error = ieee80211_ioctl(ifp, cmd, data, cr);
1153                         break;
1154                 }
1155                 break;
1156         case SIOCS80211:
1157                 error = suser_cred(cr, NULL_CRED_OKAY);
1158                 if (error)
1159                         break;
1160                 ireq = (struct ieee80211req *) data;
1161                 switch (ireq->i_type) {
1162                 case IEEE80211_IOC_STATIONNAME:
1163                         if (ireq->i_val != 0 ||
1164                             ireq->i_len > IEEE80211_NWID_LEN) {
1165                                 error = EINVAL;
1166                                 break;
1167                         }
1168                         memset(nodename, 0, IEEE80211_NWID_LEN);
1169                         error = copyin(ireq->i_data, nodename, ireq->i_len);
1170                         if (error)
1171                                 break;
1172                         if (sc->sc_enabled) {
1173                                 error = wi_write_ssid(sc, WI_RID_NODENAME,
1174                                         nodename, ireq->i_len);
1175                                 if (error)
1176                                         break;
1177                         }
1178                         memcpy(sc->sc_nodename, nodename, IEEE80211_NWID_LEN);
1179                         sc->sc_nodelen = ireq->i_len;
1180                         break;
1181                 default:
1182                         error = ieee80211_ioctl(ifp, cmd, data, cr);
1183                         break;
1184                 }
1185                 break;
1186         case SIOCSIFCAP:
1187                 ifp->if_capenable &= ~(IFCAP_POLLING);
1188                 ifp->if_capenable |= ifr->ifr_reqcap & (IFCAP_POLLING);
1189                 if (ifp->if_flags & IFF_RUNNING)
1190                         wi_init(sc);
1191                 break;
1192         default:
1193                 error = ieee80211_ioctl(ifp, cmd, data, cr);
1194                 break;
1195         }
1196         if (error == ENETRESET) {
1197                 if (sc->sc_enabled)
1198                         wi_init(sc);    /* XXX no error return */
1199                 error = 0;
1200         }
1201 out:
1202         WI_UNLOCK(sc);
1203
1204         return (error);
1205 }
1206
1207 static int
1208 wi_media_change(struct ifnet *ifp)
1209 {
1210         struct wi_softc *sc = ifp->if_softc;
1211         int error;
1212
1213         error = ieee80211_media_change(ifp);
1214         if (error == ENETRESET) {
1215                 if (sc->sc_enabled)
1216                         wi_init(sc);    /* XXX no error return */
1217                 error = 0;
1218         }
1219         return error;
1220 }
1221
1222 static void
1223 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
1224 {
1225         struct wi_softc *sc = ifp->if_softc;
1226         struct ieee80211com *ic = &sc->sc_ic;
1227         u_int16_t val;
1228         int rate, len;
1229
1230         if (sc->wi_gone || !sc->sc_enabled) {
1231                 imr->ifm_active = IFM_IEEE80211 | IFM_NONE;
1232                 imr->ifm_status = 0;
1233                 return;
1234         }
1235
1236         imr->ifm_status = IFM_AVALID;
1237         imr->ifm_active = IFM_IEEE80211;
1238         if (ic->ic_state == IEEE80211_S_RUN &&
1239             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0)
1240                 imr->ifm_status |= IFM_ACTIVE;
1241         len = sizeof(val);
1242         if (wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) != 0)
1243                 rate = 0;
1244         else {
1245                 /* convert to 802.11 rate */
1246                 rate = val * 2;
1247                 if (sc->sc_firmware_type == WI_LUCENT) {
1248                         if (rate == 4 * 2)
1249                                 rate = 11;      /* 5.5Mbps */
1250                         else if (rate == 5 * 2)
1251                                 rate = 22;      /* 11Mbps */
1252                 } else {
1253                         if (rate == 4*2)
1254                                 rate = 11;      /* 5.5Mbps */
1255                         else if (rate == 8*2)
1256                                 rate = 22;      /* 11Mbps */
1257                 }
1258         }
1259         imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B);
1260         switch (ic->ic_opmode) {
1261         case IEEE80211_M_STA:
1262                 break;
1263         case IEEE80211_M_IBSS:
1264                 imr->ifm_active |= IFM_IEEE80211_ADHOC;
1265                 break;
1266         case IEEE80211_M_AHDEMO:
1267                 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0;
1268                 break;
1269         case IEEE80211_M_HOSTAP:
1270                 imr->ifm_active |= IFM_IEEE80211_HOSTAP;
1271                 break;
1272         case IEEE80211_M_MONITOR:
1273                 imr->ifm_active |= IFM_IEEE80211_MONITOR;
1274                 break;
1275         }
1276 }
1277
1278 static void
1279 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
1280 {
1281         struct ieee80211com *ic = &sc->sc_ic;
1282         struct ieee80211_node *ni = ic->ic_bss;
1283         struct ifnet *ifp = &ic->ic_if;
1284
1285         if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
1286                 return;
1287
1288         DPRINTF(("wi_sync_bssid: bssid %6D -> ", ni->ni_bssid, ":"));
1289         DPRINTF(("%6D ?\n", new_bssid, ":"));
1290
1291         /* In promiscuous mode, the BSSID field is not a reliable
1292          * indicator of the firmware's BSSID. Damp spurious
1293          * change-of-BSSID indications.
1294          */
1295         if ((ifp->if_flags & IFF_PROMISC) != 0 &&
1296             sc->sc_false_syns >= WI_MAX_FALSE_SYNS)
1297                 return;
1298
1299         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1300 }
1301
1302 static void
1303 wi_rx_monitor(struct wi_softc *sc, int fid)
1304 {
1305         struct ieee80211com *ic = &sc->sc_ic;
1306         struct ifnet *ifp = &ic->ic_if;
1307         struct wi_frame *rx_frame;
1308         struct mbuf *m;
1309         int datlen, hdrlen;
1310
1311         /* first allocate mbuf for packet storage */
1312         m = m_getcl(MB_DONTWAIT, MT_DATA, 0);
1313         if (m == NULL) {
1314                 ifp->if_ierrors++;
1315                 return;
1316         }
1317
1318         m->m_pkthdr.rcvif = ifp;
1319
1320         /* now read wi_frame first so we know how much data to read */
1321         if (wi_read_bap(sc, fid, 0, mtod(m, caddr_t), sizeof(*rx_frame))) {
1322                 ifp->if_ierrors++;
1323                 goto done;
1324         }
1325
1326         rx_frame = mtod(m, struct wi_frame *);
1327
1328         switch ((rx_frame->wi_status & WI_STAT_MAC_PORT) >> 8) {
1329         case 7:
1330                 switch (rx_frame->wi_whdr.i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
1331                 case IEEE80211_FC0_TYPE_DATA:
1332                         hdrlen = WI_DATA_HDRLEN;
1333                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1334                         break;
1335                 case IEEE80211_FC0_TYPE_MGT:
1336                         hdrlen = WI_MGMT_HDRLEN;
1337                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1338                         break;
1339                 case IEEE80211_FC0_TYPE_CTL:
1340                         /*
1341                          * prism2 cards don't pass control packets
1342                          * down properly or consistently, so we'll only
1343                          * pass down the header.
1344                          */
1345                         hdrlen = WI_CTL_HDRLEN;
1346                         datlen = 0;
1347                         break;
1348                 default:
1349                         if_printf(ifp, "received packet of unknown type "
1350                                 "on port 7\n");
1351                         ifp->if_ierrors++;
1352                         goto done;
1353                 }
1354                 break;
1355         case 0:
1356                 hdrlen = WI_DATA_HDRLEN;
1357                 datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1358                 break;
1359         default:
1360                 if_printf(ifp, "received packet on invalid "
1361                     "port (wi_status=0x%x)\n", rx_frame->wi_status);
1362                 ifp->if_ierrors++;
1363                 goto done;
1364         }
1365
1366         if (hdrlen + datlen + 2 > MCLBYTES) {
1367                 if_printf(ifp, "oversized packet received "
1368                     "(wi_dat_len=%d, wi_status=0x%x)\n",
1369                     datlen, rx_frame->wi_status);
1370                 ifp->if_ierrors++;
1371                 goto done;
1372         }
1373
1374         if (wi_read_bap(sc, fid, hdrlen, mtod(m, caddr_t) + hdrlen,
1375             datlen + 2) == 0) {
1376                 m->m_pkthdr.len = m->m_len = hdrlen + datlen;
1377                 ifp->if_ipackets++;
1378                 BPF_MTAP(ifp, m);       /* Handle BPF listeners. */
1379         } else
1380                 ifp->if_ierrors++;
1381 done:
1382         m_freem(m);
1383 }
1384
1385 static void
1386 wi_rx_intr(struct wi_softc *sc)
1387 {
1388         struct ieee80211com *ic = &sc->sc_ic;
1389         struct ifnet *ifp = &ic->ic_if;
1390         struct wi_frame frmhdr;
1391         struct mbuf *m;
1392         struct ieee80211_frame *wh;
1393         struct ieee80211_node *ni;
1394         int fid, len, off, rssi;
1395         u_int8_t dir;
1396         u_int16_t status;
1397         u_int32_t rstamp;
1398
1399         fid = CSR_READ_2(sc, WI_RX_FID);
1400
1401         if (sc->wi_debug.wi_monitor) {
1402                 /*
1403                  * If we are in monitor mode just
1404                  * read the data from the device.
1405                  */
1406                 wi_rx_monitor(sc, fid);
1407                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1408                 return;
1409         }
1410
1411         /* First read in the frame header */
1412         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
1413                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1414                 ifp->if_ierrors++;
1415                 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid));
1416                 return;
1417         }
1418
1419         if (IFF_DUMPPKTS(ifp))
1420                 wi_dump_pkt(&frmhdr, NULL, frmhdr.wi_rx_signal);
1421
1422         /*
1423          * Drop undecryptable or packets with receive errors here
1424          */
1425         status = le16toh(frmhdr.wi_status);
1426         if (status & WI_STAT_ERRSTAT) {
1427                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1428                 ifp->if_ierrors++;
1429                 DPRINTF(("wi_rx_intr: fid %x error status %x\n", 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(("wi_rx_intr: oversized packet\n"));
1448                         return;
1449                 } else
1450                         len = 0;
1451         }
1452
1453         MGETHDR(m, MB_DONTWAIT, MT_DATA);
1454         if (m == NULL) {
1455                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1456                 ifp->if_ierrors++;
1457                 DPRINTF(("wi_rx_intr: MGET failed\n"));
1458                 return;
1459         }
1460         if (off + len > MHLEN) {
1461                 MCLGET(m, MB_DONTWAIT);
1462                 if ((m->m_flags & M_EXT) == 0) {
1463                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1464                         m_freem(m);
1465                         ifp->if_ierrors++;
1466                         DPRINTF(("wi_rx_intr: MCLGET failed\n"));
1467                         return;
1468                 }
1469         }
1470
1471         m->m_data += off - sizeof(struct ieee80211_frame);
1472         memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
1473         wi_read_bap(sc, fid, sizeof(frmhdr),
1474             m->m_data + sizeof(struct ieee80211_frame), len);
1475         m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
1476         m->m_pkthdr.rcvif = ifp;
1477
1478         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1479
1480         if (sc->sc_drvbpf) {
1481                 /* XXX replace divide by table */
1482                 sc->sc_rx_th.wr_rate = frmhdr.wi_rx_rate / 5;
1483                 sc->sc_rx_th.wr_antsignal = frmhdr.wi_rx_signal;
1484                 sc->sc_rx_th.wr_antnoise = frmhdr.wi_rx_silence;
1485                 sc->sc_rx_th.wr_flags = 0;
1486                 if (frmhdr.wi_status & WI_STAT_PCF)
1487                         sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_CFP;
1488                 bpf_ptap(sc->sc_drvbpf, m, &sc->sc_rx_th, sc->sc_rx_th_len);
1489         }
1490
1491         wh = mtod(m, struct ieee80211_frame *);
1492         if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1493                 /*
1494                  * WEP is decrypted by hardware. Clear WEP bit
1495                  * header for ieee80211_input().
1496                  */
1497                 wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
1498         }
1499
1500         /* synchronize driver's BSSID with firmware's BSSID */
1501         dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
1502         if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
1503                 wi_sync_bssid(sc, wh->i_addr3);
1504
1505         /*
1506          * Locate the node for sender, track state, and
1507          * then pass this node (referenced) up to the 802.11
1508          * layer for its use.  We are required to pass
1509          * something so we fallback to ic_bss when this frame
1510          * is from an unknown sender.
1511          */
1512         if (ic->ic_opmode != IEEE80211_M_STA) {
1513                 ni = ieee80211_find_node(ic, wh->i_addr2);
1514                 if (ni == NULL)
1515                         ni = ieee80211_ref_node(ic->ic_bss);
1516         } else
1517                 ni = ieee80211_ref_node(ic->ic_bss);
1518         /*
1519          * Send frame up for processing.
1520          */
1521         ieee80211_input(ifp, m, ni, rssi, rstamp);
1522         /*
1523          * The frame may have caused the node to be marked for
1524          * reclamation (e.g. in response to a DEAUTH message)
1525          * so use free_node here instead of unref_node.
1526          */
1527         if (ni == ic->ic_bss)
1528                 ieee80211_unref_node(&ni);
1529         else
1530                 ieee80211_free_node(ic, ni);
1531 }
1532
1533 static void
1534 wi_tx_ex_intr(struct wi_softc *sc)
1535 {
1536         struct ieee80211com *ic = &sc->sc_ic;
1537         struct ifnet *ifp = &ic->ic_if;
1538         struct wi_frame frmhdr;
1539         int fid;
1540
1541         fid = CSR_READ_2(sc, WI_TX_CMP_FID);
1542         /* Read in the frame header */
1543         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
1544                 u_int16_t status = le16toh(frmhdr.wi_status);
1545
1546                 /*
1547                  * Spontaneous station disconnects appear as xmit
1548                  * errors.  Don't announce them and/or count them
1549                  * as an output error.
1550                  */
1551                 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
1552                         if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
1553                                 if_printf(ifp, "tx failed");
1554                                 if (status & WI_TXSTAT_RET_ERR)
1555                                         printf(", retry limit exceeded");
1556                                 if (status & WI_TXSTAT_AGED_ERR)
1557                                         printf(", max transmit lifetime exceeded");
1558                                 if (status & WI_TXSTAT_DISCONNECT)
1559                                         printf(", port disconnected");
1560                                 if (status & WI_TXSTAT_FORM_ERR)
1561                                         printf(", invalid format (data len %u src %6D)",
1562                                                 le16toh(frmhdr.wi_dat_len),
1563                                                 frmhdr.wi_ehdr.ether_shost, ":");
1564                                 if (status & ~0xf)
1565                                         printf(", status=0x%x", status);
1566                                 printf("\n");
1567                         }
1568                         ifp->if_oerrors++;
1569                 } else {
1570                         DPRINTF(("port disconnected\n"));
1571                         ifp->if_collisions++;   /* XXX */
1572                 }
1573         } else
1574                 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid));
1575         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
1576 }
1577
1578 static void
1579 wi_tx_intr(struct wi_softc *sc)
1580 {
1581         struct ieee80211com *ic = &sc->sc_ic;
1582         struct ifnet *ifp = &ic->ic_if;
1583         int fid, cur;
1584
1585         if (sc->wi_gone)
1586                 return;
1587
1588         fid = CSR_READ_2(sc, WI_ALLOC_FID);
1589         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1590
1591         cur = sc->sc_txcur;
1592         if (sc->sc_txd[cur].d_fid != fid) {
1593                 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n",
1594                     fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
1595                 return;
1596         }
1597         sc->sc_tx_timer = 0;
1598         sc->sc_txd[cur].d_len = 0;
1599         sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
1600         if (sc->sc_txd[cur].d_len == 0)
1601                 ifp->if_flags &= ~IFF_OACTIVE;
1602         else {
1603                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
1604                     0, 0)) {
1605                         if_printf(ifp, "xmit failed\n");
1606                         sc->sc_txd[cur].d_len = 0;
1607                 } else {
1608                         sc->sc_tx_timer = 5;
1609                         ifp->if_timer = 1;
1610                 }
1611         }
1612 }
1613
1614 static void
1615 wi_info_intr(struct wi_softc *sc)
1616 {
1617         struct ieee80211com *ic = &sc->sc_ic;
1618         struct ifnet *ifp = &ic->ic_if;
1619         int i, fid, len, off;
1620         u_int16_t ltbuf[2];
1621         u_int16_t stat;
1622         u_int32_t *ptr;
1623
1624         fid = CSR_READ_2(sc, WI_INFO_FID);
1625         wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
1626
1627         switch (le16toh(ltbuf[1])) {
1628
1629         case WI_INFO_LINK_STAT:
1630                 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
1631                 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
1632                 switch (le16toh(stat)) {
1633                 case WI_INFO_LINK_STAT_CONNECTED:
1634                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1635                         if (ic->ic_state == IEEE80211_S_RUN &&
1636                             ic->ic_opmode != IEEE80211_M_IBSS)
1637                                 break;
1638                         /* FALLTHROUGH */
1639                 case WI_INFO_LINK_STAT_AP_CHG:
1640                         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1641                         break;
1642                 case WI_INFO_LINK_STAT_AP_INR:
1643                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1644                         break;
1645                 case WI_INFO_LINK_STAT_AP_OOR:
1646                         if (sc->sc_firmware_type == WI_SYMBOL &&
1647                             sc->sc_scan_timer > 0) {
1648                                 if (wi_cmd(sc, WI_CMD_INQUIRE,
1649                                     WI_INFO_HOST_SCAN_RESULTS, 0, 0) != 0)
1650                                         sc->sc_scan_timer = 0;
1651                                 break;
1652                         }
1653                         if (ic->ic_opmode == IEEE80211_M_STA)
1654                                 sc->sc_flags |= WI_FLAGS_OUTRANGE;
1655                         break;
1656                 case WI_INFO_LINK_STAT_DISCONNECTED:
1657                 case WI_INFO_LINK_STAT_ASSOC_FAILED:
1658                         if (ic->ic_opmode == IEEE80211_M_STA)
1659                                 ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
1660                         break;
1661                 }
1662                 break;
1663
1664         case WI_INFO_COUNTERS:
1665                 /* some card versions have a larger stats structure */
1666                 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
1667                 ptr = (u_int32_t *)&sc->sc_stats;
1668                 off = sizeof(ltbuf);
1669                 for (i = 0; i < len; i++, off += 2, ptr++) {
1670                         wi_read_bap(sc, fid, off, &stat, sizeof(stat));
1671 #ifdef WI_HERMES_STATS_WAR
1672                         if (stat & 0xf000)
1673                                 stat = ~stat;
1674 #endif
1675                         *ptr += stat;
1676                 }
1677                 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries +
1678                     sc->sc_stats.wi_tx_multi_retries +
1679                     sc->sc_stats.wi_tx_retry_limit;
1680                 break;
1681
1682         case WI_INFO_SCAN_RESULTS:
1683         case WI_INFO_HOST_SCAN_RESULTS:
1684                 wi_scan_result(sc, fid, le16toh(ltbuf[0]));
1685                 break;
1686
1687         default:
1688                 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid,
1689                     le16toh(ltbuf[1]), le16toh(ltbuf[0])));
1690                 break;
1691         }
1692         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
1693 }
1694
1695 static int
1696 wi_write_multi(struct wi_softc *sc)
1697 {
1698         struct ifnet *ifp = &sc->sc_ic.ic_if;
1699         int n;
1700         struct ifmultiaddr *ifma;
1701         struct wi_mcast mlist;
1702
1703         if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1704 allmulti:
1705                 memset(&mlist, 0, sizeof(mlist));
1706                 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1707                     sizeof(mlist));
1708         }
1709
1710         n = 0;
1711         LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1712                 if (ifma->ifma_addr->sa_family != AF_LINK)
1713                         continue;
1714                 if (n >= 16)
1715                         goto allmulti;
1716                 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
1717                     (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
1718                 n++;
1719         }
1720         return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1721             IEEE80211_ADDR_LEN * n);
1722 }
1723
1724 static void
1725 wi_read_nicid(struct wi_softc *sc)
1726 {
1727         struct wi_card_ident *id;
1728         char *p;
1729         int len;
1730         u_int16_t ver[4];
1731
1732         /* getting chip identity */
1733         memset(ver, 0, sizeof(ver));
1734         len = sizeof(ver);
1735         wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
1736         device_printf(sc->sc_dev, "using ");
1737
1738         sc->sc_firmware_type = WI_NOTYPE;
1739         for (id = wi_card_ident; id->card_name != NULL; id++) {
1740                 if (le16toh(ver[0]) == id->card_id) {
1741                         printf("%s", id->card_name);
1742                         sc->sc_firmware_type = id->firm_type;
1743                         break;
1744                 }
1745         }
1746         if (sc->sc_firmware_type == WI_NOTYPE) {
1747                 if (le16toh(ver[0]) & 0x8000) {
1748                         printf("Unknown PRISM2 chip");
1749                         sc->sc_firmware_type = WI_INTERSIL;
1750                 } else {
1751                         printf("Unknown Lucent chip");
1752                         sc->sc_firmware_type = WI_LUCENT;
1753                 }
1754         }
1755
1756         /* get primary firmware version (Only Prism chips) */
1757         if (sc->sc_firmware_type != WI_LUCENT) {
1758                 memset(ver, 0, sizeof(ver));
1759                 len = sizeof(ver);
1760                 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
1761                 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
1762                     le16toh(ver[3]) * 100 + le16toh(ver[1]);
1763         }
1764
1765         /* get station firmware version */
1766         memset(ver, 0, sizeof(ver));
1767         len = sizeof(ver);
1768         wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
1769         sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
1770             le16toh(ver[3]) * 100 + le16toh(ver[1]);
1771         if (sc->sc_firmware_type == WI_INTERSIL &&
1772             (sc->sc_sta_firmware_ver == 10102 ||
1773              sc->sc_sta_firmware_ver == 20102)) {
1774                 char ident[12];
1775                 memset(ident, 0, sizeof(ident));
1776                 len = sizeof(ident);
1777                 /* value should be the format like "V2.00-11" */
1778                 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
1779                     *(p = (char *)ident) >= 'A' &&
1780                     p[2] == '.' && p[5] == '-' && p[8] == '\0') {
1781                         sc->sc_firmware_type = WI_SYMBOL;
1782                         sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 +
1783                             (p[3] - '0') * 1000 + (p[4] - '0') * 100 +
1784                             (p[6] - '0') * 10 + (p[7] - '0');
1785                 }
1786         }
1787         printf("\n");
1788         device_printf(sc->sc_dev, "%s Firmware: ",
1789              sc->sc_firmware_type == WI_LUCENT ? "Lucent" :
1790             (sc->sc_firmware_type == WI_SYMBOL ? "Symbol" : "Intersil"));
1791         if (sc->sc_firmware_type != WI_LUCENT)  /* XXX */
1792                 printf("Primary (%u.%u.%u), ",
1793                     sc->sc_pri_firmware_ver / 10000,
1794                     (sc->sc_pri_firmware_ver % 10000) / 100,
1795                     sc->sc_pri_firmware_ver % 100);
1796         printf("Station (%u.%u.%u)\n",
1797             sc->sc_sta_firmware_ver / 10000,
1798             (sc->sc_sta_firmware_ver % 10000) / 100,
1799             sc->sc_sta_firmware_ver % 100);
1800 }
1801
1802 static int
1803 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
1804 {
1805         struct wi_ssid ssid;
1806
1807         if (buflen > IEEE80211_NWID_LEN)
1808                 return ENOBUFS;
1809         memset(&ssid, 0, sizeof(ssid));
1810         ssid.wi_len = htole16(buflen);
1811         memcpy(ssid.wi_ssid, buf, buflen);
1812         return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
1813 }
1814
1815 static int
1816 wi_get_cfg(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1817 {
1818         struct wi_softc *sc = ifp->if_softc;
1819         struct ieee80211com *ic = &sc->sc_ic;
1820         struct ifreq *ifr = (struct ifreq *)data;
1821         struct wi_req wreq;
1822         struct wi_scan_res *res;
1823         size_t reslen;
1824         int len, n, error, mif, val, off, i;
1825
1826         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1827         if (error)
1828                 return error;
1829         len = (wreq.wi_len - 1) * 2;
1830         if (len < sizeof(u_int16_t))
1831                 return ENOSPC;
1832         if (len > sizeof(wreq.wi_val))
1833                 len = sizeof(wreq.wi_val);
1834
1835         switch (wreq.wi_type) {
1836
1837         case WI_RID_IFACE_STATS:
1838                 memcpy(wreq.wi_val, &sc->sc_stats, sizeof(sc->sc_stats));
1839                 if (len < sizeof(sc->sc_stats))
1840                         error = ENOSPC;
1841                 else
1842                         len = sizeof(sc->sc_stats);
1843                 break;
1844
1845         case WI_RID_ENCRYPTION:
1846         case WI_RID_TX_CRYPT_KEY:
1847         case WI_RID_DEFLT_CRYPT_KEYS:
1848         case WI_RID_TX_RATE:
1849                 return ieee80211_cfgget(ifp, cmd, data, cr);
1850
1851         case WI_RID_MICROWAVE_OVEN:
1852                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_MOR)) {
1853                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1854                             &len);
1855                         break;
1856                 }
1857                 wreq.wi_val[0] = htole16(sc->sc_microwave_oven);
1858                 len = sizeof(u_int16_t);
1859                 break;
1860
1861         case WI_RID_DBM_ADJUST:
1862                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_DBMADJUST)) {
1863                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1864                             &len);
1865                         break;
1866                 }
1867                 wreq.wi_val[0] = htole16(sc->sc_dbm_offset);
1868                 len = sizeof(u_int16_t);
1869                 break;
1870
1871         case WI_RID_ROAMING_MODE:
1872                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_ROAMING)) {
1873                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1874                             &len);
1875                         break;
1876                 }
1877                 wreq.wi_val[0] = htole16(sc->sc_roaming_mode);
1878                 len = sizeof(u_int16_t);
1879                 break;
1880
1881         case WI_RID_SYSTEM_SCALE:
1882                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)) {
1883                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1884                             &len);
1885                         break;
1886                 }
1887                 wreq.wi_val[0] = htole16(sc->sc_system_scale);
1888                 len = sizeof(u_int16_t);
1889                 break;
1890
1891         case WI_RID_FRAG_THRESH:
1892                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)) {
1893                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1894                             &len);
1895                         break;
1896                 }
1897                 wreq.wi_val[0] = htole16(ic->ic_fragthreshold);
1898                 len = sizeof(u_int16_t);
1899                 break;
1900
1901         case WI_RID_READ_APS:
1902                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1903                         return ieee80211_cfgget(ifp, cmd, data, cr);
1904                 if (sc->sc_scan_timer > 0) {
1905                         error = EINPROGRESS;
1906                         break;
1907                 }
1908                 n = sc->sc_naps;
1909                 if (len < sizeof(n)) {
1910                         error = ENOSPC;
1911                         break;
1912                 }
1913                 if (len < sizeof(n) + sizeof(struct wi_apinfo) * n)
1914                         n = (len - sizeof(n)) / sizeof(struct wi_apinfo);
1915                 len = sizeof(n) + sizeof(struct wi_apinfo) * n;
1916                 memcpy(wreq.wi_val, &n, sizeof(n));
1917                 memcpy((caddr_t)wreq.wi_val + sizeof(n), sc->sc_aps,
1918                     sizeof(struct wi_apinfo) * n);
1919                 break;
1920
1921         case WI_RID_PRISM2:
1922                 wreq.wi_val[0] = sc->sc_firmware_type != WI_LUCENT;
1923                 len = sizeof(u_int16_t);
1924                 break;
1925
1926         case WI_RID_MIF:
1927                 mif = wreq.wi_val[0];
1928                 error = wi_cmd(sc, WI_CMD_READMIF, mif, 0, 0);
1929                 val = CSR_READ_2(sc, WI_RESP0);
1930                 wreq.wi_val[0] = val;
1931                 len = sizeof(u_int16_t);
1932                 break;
1933
1934         case WI_RID_ZERO_CACHE:
1935         case WI_RID_PROCFRAME:          /* ignore for compatibility */
1936                 /* XXX ??? */
1937                 break;
1938
1939         case WI_RID_READ_CACHE:
1940                 return ieee80211_cfgget(ifp, cmd, data, cr);
1941
1942         case WI_RID_SCAN_RES:           /* compatibility interface */
1943                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1944                         return ieee80211_cfgget(ifp, cmd, data, cr);
1945                 if (sc->sc_scan_timer > 0) {
1946                         error = EINPROGRESS;
1947                         break;
1948                 }
1949                 n = sc->sc_naps;
1950                 if (sc->sc_firmware_type == WI_LUCENT) {
1951                         off = 0;
1952                         reslen = WI_WAVELAN_RES_SIZE;
1953                 } else {
1954                         off = sizeof(struct wi_scan_p2_hdr);
1955                         reslen = WI_PRISM2_RES_SIZE;
1956                 }
1957                 if (len < off + reslen * n)
1958                         n = (len - off) / reslen;
1959                 len = off + reslen * n;
1960                 if (off != 0) {
1961                         struct wi_scan_p2_hdr *p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1962                         /*
1963                          * Prepend Prism-specific header.
1964                          */
1965                         if (len < sizeof(struct wi_scan_p2_hdr)) {
1966                                 error = ENOSPC;
1967                                 break;
1968                         }
1969                         p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1970                         p2->wi_rsvd = 0;
1971                         p2->wi_reason = n;      /* XXX */
1972                 }
1973                 for (i = 0; i < n; i++, off += reslen) {
1974                         const struct wi_apinfo *ap = &sc->sc_aps[i];
1975
1976                         res = (struct wi_scan_res *)((char *)wreq.wi_val + off);
1977                         res->wi_chan = ap->channel;
1978                         res->wi_noise = ap->noise;
1979                         res->wi_signal = ap->signal;
1980                         IEEE80211_ADDR_COPY(res->wi_bssid, ap->bssid);
1981                         res->wi_interval = ap->interval;
1982                         res->wi_capinfo = ap->capinfo;
1983                         res->wi_ssid_len = ap->namelen;
1984                         memcpy(res->wi_ssid, ap->name,
1985                                 IEEE80211_NWID_LEN);
1986                         if (sc->sc_firmware_type != WI_LUCENT) {
1987                                 /* XXX not saved from Prism cards */
1988                                 memset(res->wi_srates, 0,
1989                                         sizeof(res->wi_srates));
1990                                 res->wi_rate = ap->rate;
1991                                 res->wi_rsvd = 0;
1992                         }
1993                 }
1994                 break;
1995
1996         default:
1997                 if (sc->sc_enabled) {
1998                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1999                             &len);
2000                         break;
2001                 }
2002                 switch (wreq.wi_type) {
2003                 case WI_RID_MAX_DATALEN:
2004                         wreq.wi_val[0] = htole16(sc->sc_max_datalen);
2005                         len = sizeof(u_int16_t);
2006                         break;
2007                 case WI_RID_RTS_THRESH:
2008                         wreq.wi_val[0] = htole16(ic->ic_rtsthreshold);
2009                         len = sizeof(u_int16_t);
2010                         break;
2011                 case WI_RID_CNFAUTHMODE:
2012                         wreq.wi_val[0] = htole16(sc->sc_cnfauthmode);
2013                         len = sizeof(u_int16_t);
2014                         break;
2015                 case WI_RID_NODENAME:
2016                         if (len < sc->sc_nodelen + sizeof(u_int16_t)) {
2017                                 error = ENOSPC;
2018                                 break;
2019                         }
2020                         len = sc->sc_nodelen + sizeof(u_int16_t);
2021                         wreq.wi_val[0] = htole16((sc->sc_nodelen + 1) / 2);
2022                         memcpy(&wreq.wi_val[1], sc->sc_nodename,
2023                             sc->sc_nodelen);
2024                         break;
2025                 default:
2026                         return ieee80211_cfgget(ifp, cmd, data, cr);
2027                 }
2028                 break;
2029         }
2030         if (error)
2031                 return error;
2032         wreq.wi_len = (len + 1) / 2 + 1;
2033         return copyout(&wreq, ifr->ifr_data, (wreq.wi_len + 1) * 2);
2034 }
2035
2036 static int
2037 wi_set_cfg(struct ifnet *ifp, u_long cmd, caddr_t data)
2038 {
2039         struct wi_softc *sc = ifp->if_softc;
2040         struct ieee80211com *ic = &sc->sc_ic;
2041         struct ifreq *ifr = (struct ifreq *)data;
2042         struct wi_req wreq;
2043         struct mbuf *m;
2044         int i, len, error, mif, val;
2045         struct ieee80211_rateset *rs;
2046
2047         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
2048         if (error)
2049                 return error;
2050         len = wreq.wi_len ? (wreq.wi_len - 1) * 2 : 0;
2051         switch (wreq.wi_type) {
2052         case WI_RID_DBM_ADJUST:
2053                 return ENODEV;
2054
2055         case WI_RID_NODENAME:
2056                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2057                     le16toh(wreq.wi_val[0]) > sizeof(sc->sc_nodename)) {
2058                         error = ENOSPC;
2059                         break;
2060                 }
2061                 if (sc->sc_enabled) {
2062                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2063                             len);
2064                         if (error)
2065                                 break;
2066                 }
2067                 sc->sc_nodelen = le16toh(wreq.wi_val[0]) * 2;
2068                 memcpy(sc->sc_nodename, &wreq.wi_val[1], sc->sc_nodelen);
2069                 break;
2070
2071         case WI_RID_MICROWAVE_OVEN:
2072         case WI_RID_ROAMING_MODE:
2073         case WI_RID_SYSTEM_SCALE:
2074         case WI_RID_FRAG_THRESH:
2075                 if (wreq.wi_type == WI_RID_MICROWAVE_OVEN &&
2076                     (sc->sc_flags & WI_FLAGS_HAS_MOR) == 0)
2077                         break;
2078                 if (wreq.wi_type == WI_RID_ROAMING_MODE &&
2079                     (sc->sc_flags & WI_FLAGS_HAS_ROAMING) == 0)
2080                         break;
2081                 if (wreq.wi_type == WI_RID_SYSTEM_SCALE &&
2082                     (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) == 0)
2083                         break;
2084                 if (wreq.wi_type == WI_RID_FRAG_THRESH &&
2085                     (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) == 0)
2086                         break;
2087                 /* FALLTHROUGH */
2088         case WI_RID_RTS_THRESH:
2089         case WI_RID_CNFAUTHMODE:
2090         case WI_RID_MAX_DATALEN:
2091                 if (sc->sc_enabled) {
2092                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2093                             sizeof(u_int16_t));
2094                         if (error)
2095                                 break;
2096                 }
2097                 switch (wreq.wi_type) {
2098                 case WI_RID_FRAG_THRESH:
2099                         ic->ic_fragthreshold = le16toh(wreq.wi_val[0]);
2100                         break;
2101                 case WI_RID_RTS_THRESH:
2102                         ic->ic_rtsthreshold = le16toh(wreq.wi_val[0]);
2103                         break;
2104                 case WI_RID_MICROWAVE_OVEN:
2105                         sc->sc_microwave_oven = le16toh(wreq.wi_val[0]);
2106                         break;
2107                 case WI_RID_ROAMING_MODE:
2108                         sc->sc_roaming_mode = le16toh(wreq.wi_val[0]);
2109                         break;
2110                 case WI_RID_SYSTEM_SCALE:
2111                         sc->sc_system_scale = le16toh(wreq.wi_val[0]);
2112                         break;
2113                 case WI_RID_CNFAUTHMODE:
2114                         sc->sc_cnfauthmode = le16toh(wreq.wi_val[0]);
2115                         break;
2116                 case WI_RID_MAX_DATALEN:
2117                         sc->sc_max_datalen = le16toh(wreq.wi_val[0]);
2118                         break;
2119                 }
2120                 break;
2121
2122         case WI_RID_TX_RATE:
2123                 switch (le16toh(wreq.wi_val[0])) {
2124                 case 3:
2125                         ic->ic_fixed_rate = -1;
2126                         break;
2127                 default:
2128                         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
2129                         for (i = 0; i < rs->rs_nrates; i++) {
2130                                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL)
2131                                     / 2 == le16toh(wreq.wi_val[0]))
2132                                         break;
2133                         }
2134                         if (i == rs->rs_nrates)
2135                                 return EINVAL;
2136                         ic->ic_fixed_rate = i;
2137                 }
2138                 if (sc->sc_enabled)
2139                         error = wi_write_txrate(sc);
2140                 break;
2141
2142         case WI_RID_SCAN_APS:
2143                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2144                         error = wi_scan_ap(sc, 0x3fff, 0x000f);
2145                 break;
2146
2147         case WI_RID_SCAN_REQ:           /* compatibility interface */
2148                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2149                         error = wi_scan_ap(sc, wreq.wi_val[0], wreq.wi_val[1]);
2150                 break;
2151
2152         case WI_RID_MGMT_XMIT:
2153                 if (!sc->sc_enabled) {
2154                         error = ENETDOWN;
2155                         break;
2156                 }
2157                 if (ic->ic_mgtq.ifq_len > 5) {
2158                         error = EAGAIN;
2159                         break;
2160                 }
2161                 /* XXX wi_len looks in u_int8_t, not in u_int16_t */
2162                 m = m_devget((char *)&wreq.wi_val, wreq.wi_len, 0, ifp, NULL);
2163                 if (m == NULL) {
2164                         error = ENOMEM;
2165                         break;
2166                 }
2167                 IF_ENQUEUE(&ic->ic_mgtq, m);
2168                 break;
2169
2170         case WI_RID_MIF:
2171                 mif = wreq.wi_val[0];
2172                 val = wreq.wi_val[1];
2173                 error = wi_cmd(sc, WI_CMD_WRITEMIF, mif, val, 0);
2174                 break;
2175
2176         case WI_RID_PROCFRAME:          /* ignore for compatibility */
2177                 break;
2178
2179         case WI_RID_OWN_SSID:
2180                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2181                     le16toh(wreq.wi_val[0]) > IEEE80211_NWID_LEN) {
2182                         error = ENOSPC;
2183                         break;
2184                 }
2185                 memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
2186                 ic->ic_des_esslen = le16toh(wreq.wi_val[0]) * 2;
2187                 memcpy(ic->ic_des_essid, &wreq.wi_val[1], ic->ic_des_esslen);
2188                 error = ENETRESET;
2189                 break;
2190
2191         default:
2192                 if (sc->sc_enabled) {
2193                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2194                             len);
2195                         if (error)
2196                                 break;
2197                 }
2198                 error = ieee80211_cfgset(ifp, cmd, data);
2199                 break;
2200         }
2201         return error;
2202 }
2203
2204 static int
2205 wi_write_txrate(struct wi_softc *sc)
2206 {
2207         struct ieee80211com *ic = &sc->sc_ic;
2208         int i;
2209         u_int16_t rate;
2210
2211         if (ic->ic_fixed_rate < 0)
2212                 rate = 0;       /* auto */
2213         else
2214                 rate = (ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ic->ic_fixed_rate] &
2215                     IEEE80211_RATE_VAL) / 2;
2216
2217         /* rate: 0, 1, 2, 5, 11 */
2218
2219         switch (sc->sc_firmware_type) {
2220         case WI_LUCENT:
2221                 switch (rate) {
2222                 case 0:                 /* auto == 11mbps auto */
2223                         rate = 3;
2224                         break;
2225                 /* case 1, 2 map to 1, 2*/
2226                 case 5:                 /* 5.5Mbps -> 4 */
2227                         rate = 4;
2228                         break;
2229                 case 11:                /* 11mbps -> 5 */
2230                         rate = 5;
2231                         break;
2232                 default:
2233                         break;
2234                 }
2235                 break;
2236         default:
2237                 /* Choose a bit according to this table.
2238                  *
2239                  * bit | data rate
2240                  * ----+-------------------
2241                  * 0   | 1Mbps
2242                  * 1   | 2Mbps
2243                  * 2   | 5.5Mbps
2244                  * 3   | 11Mbps
2245                  */
2246                 for (i = 8; i > 0; i >>= 1) {
2247                         if (rate >= i)
2248                                 break;
2249                 }
2250                 if (i == 0)
2251                         rate = 0xf;     /* auto */
2252                 else
2253                         rate = i;
2254                 break;
2255         }
2256         return wi_write_val(sc, WI_RID_TX_RATE, rate);
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_WEPON) ? 1 : 0;
2271                 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
2272                 if (error)
2273                         break;
2274                 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, ic->ic_wep_txkey);
2275                 if (error)
2276                         break;
2277                 memset(wkey, 0, sizeof(wkey));
2278                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2279                         keylen = ic->ic_nw_keys[i].wk_len;
2280                         wkey[i].wi_keylen = htole16(keylen);
2281                         memcpy(wkey[i].wi_keydat, ic->ic_nw_keys[i].wk_key,
2282                             keylen);
2283                 }
2284                 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
2285                     wkey, sizeof(wkey));
2286                 break;
2287
2288         case WI_INTERSIL:
2289         case WI_SYMBOL:
2290                 if (ic->ic_flags & IEEE80211_F_WEPON) {
2291                         /*
2292                          * ONLY HWB3163 EVAL-CARD Firmware version
2293                          * less than 0.8 variant2
2294                          *
2295                          *   If promiscuous mode disable, Prism2 chip
2296                          *  does not work with WEP .
2297                          * It is under investigation for details.
2298                          * (ichiro@netbsd.org)
2299                          */
2300                         if (sc->sc_firmware_type == WI_INTERSIL &&
2301                             sc->sc_sta_firmware_ver < 802 ) {
2302                                 /* firm ver < 0.8 variant 2 */
2303                                 wi_write_val(sc, WI_RID_PROMISC, 1);
2304                         }
2305                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2306                             sc->sc_cnfauthmode);
2307                         val = PRIVACY_INVOKED | EXCLUDE_UNENCRYPTED;
2308                         /*
2309                          * Encryption firmware has a bug for HostAP mode.
2310                          */
2311                         if (sc->sc_firmware_type == WI_INTERSIL &&
2312                             ic->ic_opmode == IEEE80211_M_HOSTAP)
2313                                 val |= HOST_ENCRYPT;
2314                 } else {
2315                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2316                             IEEE80211_AUTH_OPEN);
2317                         val = HOST_ENCRYPT | HOST_DECRYPT;
2318                 }
2319                 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
2320                 if (error)
2321                         break;
2322                 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY,
2323                     ic->ic_wep_txkey);
2324                 if (error)
2325                         break;
2326                 /*
2327                  * It seems that the firmware accept 104bit key only if
2328                  * all the keys have 104bit length.  We get the length of
2329                  * the transmit key and use it for all other keys.
2330                  * Perhaps we should use software WEP for such situation.
2331                  */
2332                 keylen = ic->ic_nw_keys[ic->ic_wep_txkey].wk_len;
2333                 if (keylen > IEEE80211_WEP_KEYLEN)
2334                         keylen = 13;    /* 104bit keys */
2335                 else
2336                         keylen = IEEE80211_WEP_KEYLEN;
2337                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2338                         error = wi_write_rid(sc, WI_RID_P2_CRYPT_KEY0 + i,
2339                             ic->ic_nw_keys[i].wk_key, keylen);
2340                         if (error)
2341                                 break;
2342                 }
2343                 break;
2344         }
2345         return error;
2346 }
2347
2348 static int
2349 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
2350 {
2351         int                     i, s = 0;
2352         static volatile int count  = 0;
2353
2354         if (sc->wi_gone)
2355                 return (ENODEV);
2356
2357         if (count > 0)
2358                 panic("Hey partner, hold on there!");
2359         count++;
2360
2361         /* wait for the busy bit to clear */
2362         for (i = sc->wi_cmd_count; i > 0; i--) {        /* 500ms */
2363                 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
2364                         break;
2365                 DELAY(1*1000);  /* 1ms */
2366         }
2367         if (i == 0) {
2368                 device_printf(sc->sc_dev, "wi_cmd: busy bit won't clear.\n" );
2369                 sc->wi_gone = 1;
2370                 count--;
2371                 return(ETIMEDOUT);
2372         }
2373
2374         CSR_WRITE_2(sc, WI_PARAM0, val0);
2375         CSR_WRITE_2(sc, WI_PARAM1, val1);
2376         CSR_WRITE_2(sc, WI_PARAM2, val2);
2377         CSR_WRITE_2(sc, WI_COMMAND, cmd);
2378
2379         if (cmd == WI_CMD_INI) {
2380                 /* XXX: should sleep here. */
2381                 DELAY(100*1000);                /* 100ms delay for init */
2382         }
2383         for (i = 0; i < WI_TIMEOUT; i++) {
2384                 /*
2385                  * Wait for 'command complete' bit to be
2386                  * set in the event status register.
2387                  */
2388                 s = CSR_READ_2(sc, WI_EVENT_STAT);
2389                 if (s & WI_EV_CMD) {
2390                         /* Ack the event and read result code. */
2391                         s = CSR_READ_2(sc, WI_STATUS);
2392                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
2393                         if (s & WI_STAT_CMD_RESULT) {
2394                                 count--;
2395                                 return(EIO);
2396                         }
2397                         break;
2398                 }
2399                 DELAY(WI_DELAY);
2400         }
2401
2402         count--;
2403         if (i == WI_TIMEOUT) {
2404                 device_printf(sc->sc_dev,
2405                     "timeout in wi_cmd 0x%04x; event status 0x%04x\n", cmd, s);
2406                 if (s == 0xffff)
2407                         sc->wi_gone = 1;
2408                 return(ETIMEDOUT);
2409         }
2410         return (0);
2411 }
2412
2413 static int
2414 wi_seek_bap(struct wi_softc *sc, int id, int off)
2415 {
2416         int i, status;
2417
2418         CSR_WRITE_2(sc, WI_SEL0, id);
2419         CSR_WRITE_2(sc, WI_OFF0, off);
2420
2421         for (i = 0; ; i++) {
2422                 status = CSR_READ_2(sc, WI_OFF0);
2423                 if ((status & WI_OFF_BUSY) == 0)
2424                         break;
2425                 if (i == WI_TIMEOUT) {
2426                         device_printf(sc->sc_dev, "timeout in wi_seek to %x/%x\n",
2427                             id, off);
2428                         sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2429                         if (status == 0xffff)
2430                                 sc->wi_gone = 1;
2431                         return ETIMEDOUT;
2432                 }
2433                 DELAY(1);
2434         }
2435         if (status & WI_OFF_ERR) {
2436                 device_printf(sc->sc_dev, "failed in wi_seek to %x/%x\n", id, off);
2437                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2438                 return EIO;
2439         }
2440         sc->sc_bap_id = id;
2441         sc->sc_bap_off = off;
2442         return 0;
2443 }
2444
2445 static int
2446 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2447 {
2448         u_int16_t *ptr;
2449         int i, error, cnt;
2450
2451         if (buflen == 0)
2452                 return 0;
2453         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2454                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2455                         return error;
2456         }
2457         cnt = (buflen + 1) / 2;
2458         ptr = (u_int16_t *)buf;
2459         for (i = 0; i < cnt; i++)
2460                 *ptr++ = CSR_READ_2(sc, WI_DATA0);
2461         sc->sc_bap_off += cnt * 2;
2462         return 0;
2463 }
2464
2465 static int
2466 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2467 {
2468         u_int16_t *ptr;
2469         int i, error, cnt;
2470
2471         if (buflen == 0)
2472                 return 0;
2473
2474 #ifdef WI_HERMES_AUTOINC_WAR
2475   again:
2476 #endif
2477         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2478                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2479                         return error;
2480         }
2481         cnt = (buflen + 1) / 2;
2482         ptr = (u_int16_t *)buf;
2483         for (i = 0; i < cnt; i++)
2484                 CSR_WRITE_2(sc, WI_DATA0, ptr[i]);
2485         sc->sc_bap_off += cnt * 2;
2486
2487 #ifdef WI_HERMES_AUTOINC_WAR
2488         /*
2489          * According to the comments in the HCF Light code, there is a bug
2490          * in the Hermes (or possibly in certain Hermes firmware revisions)
2491          * where the chip's internal autoincrement counter gets thrown off
2492          * during data writes:  the autoincrement is missed, causing one
2493          * data word to be overwritten and subsequent words to be written to
2494          * the wrong memory locations. The end result is that we could end
2495          * up transmitting bogus frames without realizing it. The workaround
2496          * for this is to write a couple of extra guard words after the end
2497          * of the transfer, then attempt to read then back. If we fail to
2498          * locate the guard words where we expect them, we preform the
2499          * transfer over again.
2500          */
2501         if ((sc->sc_flags & WI_FLAGS_BUG_AUTOINC) && (id & 0xf000) == 0) {
2502                 CSR_WRITE_2(sc, WI_DATA0, 0x1234);
2503                 CSR_WRITE_2(sc, WI_DATA0, 0x5678);
2504                 wi_seek_bap(sc, id, sc->sc_bap_off);
2505                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2506                 if (CSR_READ_2(sc, WI_DATA0) != 0x1234 ||
2507                     CSR_READ_2(sc, WI_DATA0) != 0x5678) {
2508                         device_printf(sc->sc_dev,
2509                                 "detect auto increment bug, try again\n");
2510                         goto again;
2511                 }
2512         }
2513 #endif
2514         return 0;
2515 }
2516
2517 static int
2518 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
2519 {
2520         int error, len;
2521         struct mbuf *m;
2522
2523         for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
2524                 if (m->m_len == 0)
2525                         continue;
2526
2527                 len = min(m->m_len, totlen);
2528
2529                 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
2530                         m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
2531                         return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
2532                             totlen);
2533                 }
2534
2535                 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
2536                         return error;
2537
2538                 off += m->m_len;
2539                 totlen -= len;
2540         }
2541         return 0;
2542 }
2543
2544 static int
2545 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
2546 {
2547         int i;
2548
2549         if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
2550                 device_printf(sc->sc_dev, "failed to allocate %d bytes on NIC\n",
2551                     len);
2552                 return ENOMEM;
2553         }
2554
2555         for (i = 0; i < WI_TIMEOUT; i++) {
2556                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
2557                         break;
2558                 if (i == WI_TIMEOUT) {
2559                         device_printf(sc->sc_dev, "timeout in alloc\n");
2560                         return ETIMEDOUT;
2561                 }
2562                 DELAY(1);
2563         }
2564         *idp = CSR_READ_2(sc, WI_ALLOC_FID);
2565         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
2566         return 0;
2567 }
2568
2569 static int
2570 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
2571 {
2572         int error, len;
2573         u_int16_t ltbuf[2];
2574
2575         /* Tell the NIC to enter record read mode. */
2576         error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
2577         if (error)
2578                 return error;
2579
2580         error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2581         if (error)
2582                 return error;
2583
2584         if (le16toh(ltbuf[1]) != rid) {
2585                 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n",
2586                     rid, le16toh(ltbuf[1]));
2587                 return EIO;
2588         }
2589         len = (le16toh(ltbuf[0]) - 1) * 2;       /* already got rid */
2590         if (*buflenp < len) {
2591                 device_printf(sc->sc_dev, "record buffer is too small, "
2592                     "rid=%x, size=%d, len=%d\n",
2593                     rid, *buflenp, len);
2594                 return ENOSPC;
2595         }
2596         *buflenp = len;
2597         return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
2598 }
2599
2600 static int
2601 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen)
2602 {
2603         int error;
2604         u_int16_t ltbuf[2];
2605
2606         ltbuf[0] = htole16((buflen + 1) / 2 + 1);        /* includes rid */
2607         ltbuf[1] = htole16(rid);
2608
2609         error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2610         if (error)
2611                 return error;
2612         error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
2613         if (error)
2614                 return error;
2615
2616         return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
2617 }
2618
2619 static int
2620 wi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
2621 {
2622         struct ifnet *ifp = &ic->ic_if;
2623         struct wi_softc *sc = ifp->if_softc;
2624         struct ieee80211_node *ni = ic->ic_bss;
2625         int buflen;
2626         u_int16_t val;
2627         struct wi_ssid ssid;
2628         u_int8_t old_bssid[IEEE80211_ADDR_LEN];
2629
2630         DPRINTF(("%s: %s -> %s\n", __func__,
2631                 ieee80211_state_name[ic->ic_state],
2632                 ieee80211_state_name[nstate]));
2633
2634         switch (nstate) {
2635         case IEEE80211_S_INIT:
2636                 ic->ic_flags &= ~IEEE80211_F_SIBSS;
2637                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2638                 return (*sc->sc_newstate)(ic, nstate, arg);
2639
2640         case IEEE80211_S_RUN:
2641                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2642                 buflen = IEEE80211_ADDR_LEN;
2643                 wi_read_rid(sc, WI_RID_CURRENT_BSSID, ni->ni_bssid, &buflen);
2644                 IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid);
2645                 buflen = sizeof(val);
2646                 wi_read_rid(sc, WI_RID_CURRENT_CHAN, &val, &buflen);
2647                 /* XXX validate channel */
2648                 ni->ni_chan = &ic->ic_channels[le16toh(val)];
2649                 sc->sc_tx_th.wt_chan_freq = sc->sc_rx_th.wr_chan_freq =
2650                         htole16(ni->ni_chan->ic_freq);
2651                 sc->sc_tx_th.wt_chan_flags = sc->sc_rx_th.wr_chan_flags =
2652                         htole16(ni->ni_chan->ic_flags);
2653
2654                 if (IEEE80211_ADDR_EQ(old_bssid, ni->ni_bssid))
2655                         sc->sc_false_syns++;
2656                 else
2657                         sc->sc_false_syns = 0;
2658
2659                 if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
2660                         ni->ni_esslen = ic->ic_des_esslen;
2661                         memcpy(ni->ni_essid, ic->ic_des_essid, ni->ni_esslen);
2662                         ni->ni_rates = ic->ic_sup_rates[IEEE80211_MODE_11B];
2663                         ni->ni_intval = ic->ic_lintval;
2664                         ni->ni_capinfo = IEEE80211_CAPINFO_ESS;
2665                         if (ic->ic_flags & IEEE80211_F_WEPON)
2666                                 ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY;
2667                 } else {
2668                         /* XXX check return value */
2669                         buflen = sizeof(ssid);
2670                         wi_read_rid(sc, WI_RID_CURRENT_SSID, &ssid, &buflen);
2671                         ni->ni_esslen = le16toh(ssid.wi_len);
2672                         if (ni->ni_esslen > IEEE80211_NWID_LEN)
2673                                 ni->ni_esslen = IEEE80211_NWID_LEN;     /*XXX*/
2674                         memcpy(ni->ni_essid, ssid.wi_ssid, ni->ni_esslen);
2675                 }
2676                 break;
2677
2678         case IEEE80211_S_SCAN:
2679         case IEEE80211_S_AUTH:
2680         case IEEE80211_S_ASSOC:
2681                 break;
2682         }
2683
2684         ic->ic_state = nstate;          /* NB: skip normal ieee80211 handling */
2685         return 0;
2686 }
2687
2688 static int
2689 wi_scan_ap(struct wi_softc *sc, u_int16_t chanmask, u_int16_t txrate)
2690 {
2691         int error = 0;
2692         u_int16_t val[2];
2693
2694         if (!sc->sc_enabled)
2695                 return ENXIO;
2696         switch (sc->sc_firmware_type) {
2697         case WI_LUCENT:
2698                 (void)wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
2699                 break;
2700         case WI_INTERSIL:
2701                 val[0] = chanmask;      /* channel */
2702                 val[1] = txrate;        /* tx rate */
2703                 error = wi_write_rid(sc, WI_RID_SCAN_REQ, val, sizeof(val));
2704                 break;
2705         case WI_SYMBOL:
2706                 /*
2707                  * XXX only supported on 3.x ?
2708                  */
2709                 val[0] = BSCAN_BCAST | BSCAN_ONETIME;
2710                 error = wi_write_rid(sc, WI_RID_BCAST_SCAN_REQ,
2711                     val, sizeof(val[0]));
2712                 break;
2713         }
2714         if (error == 0) {
2715                 sc->sc_scan_timer = WI_SCAN_WAIT;
2716                 sc->sc_ic.ic_if.if_timer = 1;
2717                 DPRINTF(("wi_scan_ap: start scanning, "
2718                         "chamask 0x%x txrate 0x%x\n", chanmask, txrate));
2719         }
2720         return error;
2721 }
2722
2723 static void
2724 wi_scan_result(struct wi_softc *sc, int fid, int cnt)
2725 {
2726 #define N(a)    (sizeof (a) / sizeof (a[0]))
2727         int i, naps, off, szbuf;
2728         struct wi_scan_header ws_hdr;   /* Prism2 header */
2729         struct wi_scan_data_p2 ws_dat;  /* Prism2 scantable*/
2730         struct wi_apinfo *ap;
2731
2732         off = sizeof(u_int16_t) * 2;
2733         memset(&ws_hdr, 0, sizeof(ws_hdr));
2734         switch (sc->sc_firmware_type) {
2735         case WI_INTERSIL:
2736                 wi_read_bap(sc, fid, off, &ws_hdr, sizeof(ws_hdr));
2737                 off += sizeof(ws_hdr);
2738                 szbuf = sizeof(struct wi_scan_data_p2);
2739                 break;
2740         case WI_SYMBOL:
2741                 szbuf = sizeof(struct wi_scan_data_p2) + 6;
2742                 break;
2743         case WI_LUCENT:
2744                 szbuf = sizeof(struct wi_scan_data);
2745                 break;
2746         default:
2747                 device_printf(sc->sc_dev,
2748                         "wi_scan_result: unknown firmware type %u\n",
2749                         sc->sc_firmware_type);
2750                 naps = 0;
2751                 goto done;
2752         }
2753         naps = (cnt * 2 + 2 - off) / szbuf;
2754         if (naps > N(sc->sc_aps))
2755                 naps = N(sc->sc_aps);
2756         sc->sc_naps = naps;
2757         /* Read Data */
2758         ap = sc->sc_aps;
2759         memset(&ws_dat, 0, sizeof(ws_dat));
2760         for (i = 0; i < naps; i++, ap++) {
2761                 wi_read_bap(sc, fid, off, &ws_dat,
2762                     (sizeof(ws_dat) < szbuf ? sizeof(ws_dat) : szbuf));
2763                 DPRINTF2(("wi_scan_result: #%d: off %d bssid %6D\n", i, off,
2764                     ws_dat.wi_bssid, ":"));
2765                 off += szbuf;
2766                 ap->scanreason = le16toh(ws_hdr.wi_reason);
2767                 memcpy(ap->bssid, ws_dat.wi_bssid, sizeof(ap->bssid));
2768                 ap->channel = le16toh(ws_dat.wi_chid);
2769                 ap->signal  = le16toh(ws_dat.wi_signal);
2770                 ap->noise   = le16toh(ws_dat.wi_noise);
2771                 ap->quality = ap->signal - ap->noise;
2772                 ap->capinfo = le16toh(ws_dat.wi_capinfo);
2773                 ap->interval = le16toh(ws_dat.wi_interval);
2774                 ap->rate    = le16toh(ws_dat.wi_rate);
2775                 ap->namelen = le16toh(ws_dat.wi_namelen);
2776                 if (ap->namelen > sizeof(ap->name))
2777                         ap->namelen = sizeof(ap->name);
2778                 memcpy(ap->name, ws_dat.wi_name, ap->namelen);
2779         }
2780 done:
2781         /* Done scanning */
2782         sc->sc_scan_timer = 0;
2783         DPRINTF(("wi_scan_result: scan complete: ap %d\n", naps));
2784 #undef N
2785 }
2786
2787 static void
2788 wi_dump_pkt(struct wi_frame *wh, struct ieee80211_node *ni, int rssi)
2789 {
2790         ieee80211_dump_pkt((u_int8_t *) &wh->wi_whdr, sizeof(wh->wi_whdr),
2791             ni ? ni->ni_rates.rs_rates[ni->ni_txrate] & IEEE80211_RATE_VAL : -1, rssi);
2792         printf(" status 0x%x rx_tstamp1 %u rx_tstamp0 0x%u rx_silence %u\n",
2793                 le16toh(wh->wi_status), le16toh(wh->wi_rx_tstamp1),
2794                 le16toh(wh->wi_rx_tstamp0), wh->wi_rx_silence);
2795         printf(" rx_signal %u rx_rate %u rx_flow %u\n",
2796                 wh->wi_rx_signal, wh->wi_rx_rate, wh->wi_rx_flow);
2797         printf(" tx_rtry %u tx_rate %u tx_ctl 0x%x dat_len %u\n",
2798                 wh->wi_tx_rtry, wh->wi_tx_rate,
2799                 le16toh(wh->wi_tx_ctl), le16toh(wh->wi_dat_len));
2800         printf(" ehdr dst %6D src %6D type 0x%x\n",
2801                 wh->wi_ehdr.ether_dhost, ":", wh->wi_ehdr.ether_shost, ":",
2802                 wh->wi_ehdr.ether_type);
2803 }
2804
2805 int
2806 wi_alloc(device_t dev, int rid)
2807 {
2808         struct wi_softc *sc = device_get_softc(dev);
2809
2810         if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
2811                 sc->iobase_rid = rid;
2812                 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
2813                     &sc->iobase_rid, 0, ~0, (1 << 6),
2814                     rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
2815                 if (!sc->iobase) {
2816                         device_printf(dev, "No I/O space?!\n");
2817                         return (ENXIO);
2818                 }
2819
2820                 sc->wi_io_addr = rman_get_start(sc->iobase);
2821                 sc->wi_btag = rman_get_bustag(sc->iobase);
2822                 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
2823         } else {
2824                 sc->mem_rid = rid;
2825                 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
2826                     &sc->mem_rid, RF_ACTIVE);
2827
2828                 if (!sc->mem) {
2829                         device_printf(dev, "No Mem space on prism2.5?\n");
2830                         return (ENXIO);
2831                 }
2832
2833                 sc->wi_btag = rman_get_bustag(sc->mem);
2834                 sc->wi_bhandle = rman_get_bushandle(sc->mem);
2835         }
2836
2837
2838         sc->irq_rid = 0;
2839         sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
2840             RF_ACTIVE |
2841             ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
2842
2843         if (!sc->irq) {
2844                 wi_free(dev);
2845                 device_printf(dev, "No irq?!\n");
2846                 return (ENXIO);
2847         }
2848
2849         sc->sc_dev = dev;
2850         sc->sc_unit = device_get_unit(dev);
2851
2852         return (0);
2853 }
2854
2855 void
2856 wi_free(device_t dev)
2857 {
2858         struct wi_softc *sc = device_get_softc(dev);
2859
2860         if (sc->iobase != NULL) {
2861                 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
2862                 sc->iobase = NULL;
2863         }
2864         if (sc->irq != NULL) {
2865                 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
2866                 sc->irq = NULL;
2867         }
2868         if (sc->mem != NULL) {
2869                 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
2870                 sc->mem = NULL;
2871         }
2872
2873         return;
2874 }
2875
2876 static int
2877 wi_get_debug(struct wi_softc *sc, struct wi_req *wreq)
2878 {
2879         int error = 0;
2880
2881         wreq->wi_len = 1;
2882
2883         switch (wreq->wi_type) {
2884         case WI_DEBUG_SLEEP:
2885                 wreq->wi_len++;
2886                 wreq->wi_val[0] = sc->wi_debug.wi_sleep;
2887                 break;
2888         case WI_DEBUG_DELAYSUPP:
2889                 wreq->wi_len++;
2890                 wreq->wi_val[0] = sc->wi_debug.wi_delaysupp;
2891                 break;
2892         case WI_DEBUG_TXSUPP:
2893                 wreq->wi_len++;
2894                 wreq->wi_val[0] = sc->wi_debug.wi_txsupp;
2895                 break;
2896         case WI_DEBUG_MONITOR:
2897                 wreq->wi_len++;
2898                 wreq->wi_val[0] = sc->wi_debug.wi_monitor;
2899                 break;
2900         case WI_DEBUG_LEDTEST:
2901                 wreq->wi_len += 3;
2902                 wreq->wi_val[0] = sc->wi_debug.wi_ledtest;
2903                 wreq->wi_val[1] = sc->wi_debug.wi_ledtest_param0;
2904                 wreq->wi_val[2] = sc->wi_debug.wi_ledtest_param1;
2905                 break;
2906         case WI_DEBUG_CONTTX:
2907                 wreq->wi_len += 2;
2908                 wreq->wi_val[0] = sc->wi_debug.wi_conttx;
2909                 wreq->wi_val[1] = sc->wi_debug.wi_conttx_param0;
2910                 break;
2911         case WI_DEBUG_CONTRX:
2912                 wreq->wi_len++;
2913                 wreq->wi_val[0] = sc->wi_debug.wi_contrx;
2914                 break;
2915         case WI_DEBUG_SIGSTATE:
2916                 wreq->wi_len += 2;
2917                 wreq->wi_val[0] = sc->wi_debug.wi_sigstate;
2918                 wreq->wi_val[1] = sc->wi_debug.wi_sigstate_param0;
2919                 break;
2920         case WI_DEBUG_CONFBITS:
2921                 wreq->wi_len += 2;
2922                 wreq->wi_val[0] = sc->wi_debug.wi_confbits;
2923                 wreq->wi_val[1] = sc->wi_debug.wi_confbits_param0;
2924                 break;
2925         default:
2926                 error = EIO;
2927                 break;
2928         }
2929
2930         return (error);
2931 }
2932
2933 static int
2934 wi_set_debug(struct wi_softc *sc, struct wi_req *wreq)
2935 {
2936         int error = 0;
2937         u_int16_t               cmd, param0 = 0, param1 = 0;
2938
2939         switch (wreq->wi_type) {
2940         case WI_DEBUG_RESET:
2941         case WI_DEBUG_INIT:
2942         case WI_DEBUG_CALENABLE:
2943                 break;
2944         case WI_DEBUG_SLEEP:
2945                 sc->wi_debug.wi_sleep = 1;
2946                 break;
2947         case WI_DEBUG_WAKE:
2948                 sc->wi_debug.wi_sleep = 0;
2949                 break;
2950         case WI_DEBUG_CHAN:
2951                 param0 = wreq->wi_val[0];
2952                 break;
2953         case WI_DEBUG_DELAYSUPP:
2954                 sc->wi_debug.wi_delaysupp = 1;
2955                 break;
2956         case WI_DEBUG_TXSUPP:
2957                 sc->wi_debug.wi_txsupp = 1;
2958                 break;
2959         case WI_DEBUG_MONITOR:
2960                 sc->wi_debug.wi_monitor = 1;
2961                 break;
2962         case WI_DEBUG_LEDTEST:
2963                 param0 = wreq->wi_val[0];
2964                 param1 = wreq->wi_val[1];
2965                 sc->wi_debug.wi_ledtest = 1;
2966                 sc->wi_debug.wi_ledtest_param0 = param0;
2967                 sc->wi_debug.wi_ledtest_param1 = param1;
2968                 break;
2969         case WI_DEBUG_CONTTX:
2970                 param0 = wreq->wi_val[0];
2971                 sc->wi_debug.wi_conttx = 1;
2972                 sc->wi_debug.wi_conttx_param0 = param0;
2973                 break;
2974         case WI_DEBUG_STOPTEST:
2975                 sc->wi_debug.wi_delaysupp = 0;
2976                 sc->wi_debug.wi_txsupp = 0;
2977                 sc->wi_debug.wi_monitor = 0;
2978                 sc->wi_debug.wi_ledtest = 0;
2979                 sc->wi_debug.wi_ledtest_param0 = 0;
2980                 sc->wi_debug.wi_ledtest_param1 = 0;
2981                 sc->wi_debug.wi_conttx = 0;
2982                 sc->wi_debug.wi_conttx_param0 = 0;
2983                 sc->wi_debug.wi_contrx = 0;
2984                 sc->wi_debug.wi_sigstate = 0;
2985                 sc->wi_debug.wi_sigstate_param0 = 0;
2986                 break;
2987         case WI_DEBUG_CONTRX:
2988                 sc->wi_debug.wi_contrx = 1;
2989                 break;
2990         case WI_DEBUG_SIGSTATE:
2991                 param0 = wreq->wi_val[0];
2992                 sc->wi_debug.wi_sigstate = 1;
2993                 sc->wi_debug.wi_sigstate_param0 = param0;
2994                 break;
2995         case WI_DEBUG_CONFBITS:
2996                 param0 = wreq->wi_val[0];
2997                 param1 = wreq->wi_val[1];
2998                 sc->wi_debug.wi_confbits = param0;
2999                 sc->wi_debug.wi_confbits_param0 = param1;
3000                 break;
3001         default:
3002                 error = EIO;
3003                 break;
3004         }
3005
3006         if (error)
3007                 return (error);
3008
3009         cmd = WI_CMD_DEBUG | (wreq->wi_type << 8);
3010         error = wi_cmd(sc, cmd, param0, param1, 0);
3011
3012         return (error);
3013 }
3014
3015 /*
3016  * Special routines to download firmware for Symbol CF card.
3017  * XXX: This should be modified generic into any PRISM-2 based card.
3018  */
3019
3020 #define WI_SBCF_PDIADDR         0x3100
3021
3022 /* unaligned load little endian */
3023 #define GETLE32(p)      ((p)[0] | ((p)[1]<<8) | ((p)[2]<<16) | ((p)[3]<<24))
3024 #define GETLE16(p)      ((p)[0] | ((p)[1]<<8))
3025
3026 int
3027 wi_symbol_load_firm(struct wi_softc *sc, const void *primsym, int primlen,
3028     const void *secsym, int seclen)
3029 {
3030         uint8_t ebuf[256];
3031         int i;
3032
3033         /* load primary code and run it */
3034         wi_symbol_set_hcr(sc, WI_HCR_EEHOLD);
3035         if (wi_symbol_write_firm(sc, primsym, primlen, NULL, 0))
3036                 return EIO;
3037         wi_symbol_set_hcr(sc, WI_HCR_RUN);
3038         for (i = 0; ; i++) {
3039                 if (i == 10)
3040                         return ETIMEDOUT;
3041                 tsleep(sc, 0, "wiinit", 1);
3042                 if (CSR_READ_2(sc, WI_CNTL) == WI_CNTL_AUX_ENA_STAT)
3043                         break;
3044                 /* write the magic key value to unlock aux port */
3045                 CSR_WRITE_2(sc, WI_PARAM0, WI_AUX_KEY0);
3046                 CSR_WRITE_2(sc, WI_PARAM1, WI_AUX_KEY1);
3047                 CSR_WRITE_2(sc, WI_PARAM2, WI_AUX_KEY2);
3048                 CSR_WRITE_2(sc, WI_CNTL, WI_CNTL_AUX_ENA_CNTL);
3049         }
3050
3051         /* issue read EEPROM command: XXX copied from wi_cmd() */
3052         CSR_WRITE_2(sc, WI_PARAM0, 0);
3053         CSR_WRITE_2(sc, WI_PARAM1, 0);
3054         CSR_WRITE_2(sc, WI_PARAM2, 0);
3055         CSR_WRITE_2(sc, WI_COMMAND, WI_CMD_READEE);
3056         for (i = 0; i < WI_TIMEOUT; i++) {
3057                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_CMD)
3058                         break;
3059                 DELAY(1);
3060         }
3061         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
3062
3063         CSR_WRITE_2(sc, WI_AUX_PAGE, WI_SBCF_PDIADDR / WI_AUX_PGSZ);
3064         CSR_WRITE_2(sc, WI_AUX_OFFSET, WI_SBCF_PDIADDR % WI_AUX_PGSZ);
3065         CSR_READ_MULTI_STREAM_2(sc, WI_AUX_DATA,
3066             (uint16_t *)ebuf, sizeof(ebuf) / 2);
3067         if (GETLE16(ebuf) > sizeof(ebuf))
3068                 return EIO;
3069         if (wi_symbol_write_firm(sc, secsym, seclen, ebuf + 4, GETLE16(ebuf)))
3070                 return EIO;
3071         return 0;
3072 }
3073
3074 static int
3075 wi_symbol_write_firm(struct wi_softc *sc, const void *buf, int buflen,
3076     const void *ebuf, int ebuflen)
3077 {
3078         const uint8_t *p, *ep, *q, *eq;
3079         char *tp;
3080         uint32_t addr, id, eid;
3081         int i, len, elen, nblk, pdrlen;
3082
3083         /*
3084          * Parse the header of the firmware image.
3085          */
3086         p = buf;
3087         ep = p + buflen;
3088         while (p < ep && *p++ != ' ');  /* FILE: */
3089         while (p < ep && *p++ != ' ');  /* filename */
3090         while (p < ep && *p++ != ' ');  /* type of the firmware */
3091         nblk = strtoul(p, &tp, 10);
3092         p = tp;
3093         pdrlen = strtoul(p + 1, &tp, 10);
3094         p = tp;
3095         while (p < ep && *p++ != 0x1a); /* skip rest of header */
3096
3097         /*
3098          * Block records: address[4], length[2], data[length];
3099          */
3100         for (i = 0; i < nblk; i++) {
3101                 addr = GETLE32(p);      p += 4;
3102                 len  = GETLE16(p);      p += 2;
3103                 CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3104                 CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3105                 CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3106                     (const uint16_t *)p, len / 2);
3107                 p += len;
3108         }
3109
3110         /*
3111          * PDR: id[4], address[4], length[4];
3112          */
3113         for (i = 0; i < pdrlen; ) {
3114                 id   = GETLE32(p);      p += 4; i += 4;
3115                 addr = GETLE32(p);      p += 4; i += 4;
3116                 len  = GETLE32(p);      p += 4; i += 4;
3117                 /* replace PDR entry with the values from EEPROM, if any */
3118                 for (q = ebuf, eq = q + ebuflen; q < eq; q += elen * 2) {
3119                         elen = GETLE16(q);      q += 2;
3120                         eid  = GETLE16(q);      q += 2;
3121                         elen--;         /* elen includes eid */
3122                         if (eid == 0)
3123                                 break;
3124                         if (eid != id)
3125                                 continue;
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 *)q, len / 2);
3130                         break;
3131                 }
3132         }
3133         return 0;
3134 }
3135
3136 static int
3137 wi_symbol_set_hcr(struct wi_softc *sc, int mode)
3138 {
3139         uint16_t hcr;
3140
3141         CSR_WRITE_2(sc, WI_COR, WI_COR_RESET);
3142         tsleep(sc, 0, "wiinit", 1);
3143         hcr = CSR_READ_2(sc, WI_HCR);
3144         hcr = (hcr & WI_HCR_4WIRE) | (mode & ~WI_HCR_4WIRE);
3145         CSR_WRITE_2(sc, WI_HCR, hcr);
3146         tsleep(sc, 0, "wiinit", 1);
3147         CSR_WRITE_2(sc, WI_COR, WI_COR_IOMODE);
3148         tsleep(sc, 0, "wiinit", 1);
3149         return 0;
3150 }