sys/dev/netif/wi/if_wi.c

   1 /*      $NetBSD: wi.c,v 1.109 2003/01/09 08:52:19 dyoung Exp $  */
   2
   3 /*
   4  * Copyright (c) 1997, 1998, 1999
   5  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Bill Paul.
  18  * 4. Neither the name of the author nor the names of any co-contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
  26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32  * THE POSSIBILITY OF SUCH DAMAGE.
  33  *
  34  * $FreeBSD: src/sys/dev/wi/if_wi.c,v 1.180.2.7 2005/10/05 13:16:29 avatar Exp $
  35  * $DragonFly: src/sys/dev/netif/wi/if_wi.c,v 1.37 2006/08/06 12:49:06 swildner Exp $
  36  */
  37
  38 /*
  39  * Lucent WaveLAN/IEEE 802.11 PCMCIA driver.
  40  *
  41  * Original FreeBSD driver written by Bill Paul <wpaul@ctr.columbia.edu>
  42  * Electrical Engineering Department
  43  * Columbia University, New York City
  44  */
  45
  46 /*
  47  * The WaveLAN/IEEE adapter is the second generation of the WaveLAN
  48  * from Lucent. Unlike the older cards, the new ones are programmed
  49  * entirely via a firmware-driven controller called the Hermes.
  50  * Unfortunately, Lucent will not release the Hermes programming manual
  51  * without an NDA (if at all). What they do release is an API library
  52  * called the HCF (Hardware Control Functions) which is supposed to
  53  * do the device-specific operations of a device driver for you. The
  54  * publically available version of the HCF library (the 'HCF Light') is
  55  * a) extremely gross, b) lacks certain features, particularly support
  56  * for 802.11 frames, and c) is contaminated by the GNU Public License.
  57  *
  58  * This driver does not use the HCF or HCF Light at all. Instead, it
  59  * programs the Hermes controller directly, using information gleaned
  60  * from the HCF Light code and corresponding documentation.
  61  *
  62  * This driver supports the ISA, PCMCIA and PCI versions of the Lucent
  63  * WaveLan cards (based on the Hermes chipset), as well as the newer
  64  * Prism 2 chipsets with firmware from Intersil and Symbol.
  65  */
  66
  67 #define WI_HERMES_AUTOINC_WAR   /* Work around data write autoinc bug. */
  68 #define WI_HERMES_STATS_WAR     /* Work around stats counter bug. */
  69
  70 #include "opt_polling.h"
  71
  72 #include <sys/param.h>
  73 #include <sys/endian.h>
  74 #include <sys/systm.h>
  75 #include <sys/sockio.h>
  76 #include <sys/mbuf.h>
  77 #include <sys/proc.h>
  78 #include <sys/kernel.h>
  79 #include <sys/socket.h>
  80 #include <sys/module.h>
  81 #include <sys/bus.h>
  82 #include <sys/random.h>
  83 #include <sys/syslog.h>
  84 #include <sys/sysctl.h>
  85 #include <sys/serialize.h>
  86 #include <sys/thread2.h>
  87
  88 #include <machine/bus.h>
  89 #include <machine/resource.h>
  90 #include <machine/atomic.h>
  91 #include <sys/rman.h>
  92
  93 #include <net/if.h>
  94 #include <net/if_arp.h>
  95 #include <net/ethernet.h>
  96 #include <net/if_dl.h>
  97 #include <net/if_media.h>
  98 #include <net/if_types.h>
  99 #include <net/ifq_var.h>
 100
 101 #include <netproto/802_11/ieee80211_var.h>
 102 #include <netproto/802_11/ieee80211_ioctl.h>
 103 #include <netproto/802_11/ieee80211_radiotap.h>
 104 #include <netproto/802_11/if_wavelan_ieee.h>
 105
 106 #include <netinet/in.h>
 107 #include <netinet/in_systm.h>
 108 #include <netinet/in_var.h>
 109 #include <netinet/ip.h>
 110 #include <netinet/if_ether.h>
 111
 112 #include <net/bpf.h>
 113
 114 #include <dev/netif/wi/if_wireg.h>
 115 #include <dev/netif/wi/if_wivar.h>
 116
 117 static void wi_start(struct ifnet *);
 118 static int  wi_reset(struct wi_softc *);
 119 static void wi_watchdog(struct ifnet *);
 120 static int  wi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
 121 static int  wi_media_change(struct ifnet *);
 122 static void wi_media_status(struct ifnet *, struct ifmediareq *);
 123
 124 static void wi_rx_intr(struct wi_softc *);
 125 static void wi_tx_intr(struct wi_softc *);
 126 static void wi_tx_ex_intr(struct wi_softc *);
 127 static void wi_info_intr(struct wi_softc *);
 128
 129 static int  wi_get_cfg(struct ifnet *, u_long, caddr_t, struct ucred *);
 130 static int  wi_set_cfg(struct ifnet *, u_long, caddr_t);
 131 static int  wi_write_txrate(struct wi_softc *);
 132 static int  wi_write_wep(struct wi_softc *);
 133 static int  wi_write_multi(struct wi_softc *);
 134 static int  wi_alloc_fid(struct wi_softc *, int, int *);
 135 static void wi_read_nicid(struct wi_softc *);
 136 static int  wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
 137
 138 static int  wi_cmd(struct wi_softc *, int, int, int, int);
 139 static int  wi_seek_bap(struct wi_softc *, int, int);
 140 static int  wi_read_bap(struct wi_softc *, int, int, void *, int);
 141 static int  wi_write_bap(struct wi_softc *, int, int, void *, int);
 142 static int  wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
 143 static int  wi_read_rid(struct wi_softc *, int, void *, int *);
 144 static int  wi_write_rid(struct wi_softc *, int, void *, int);
 145
 146 static int  wi_key_alloc(struct ieee80211com *, const struct ieee80211_key *,
 147                 ieee80211_keyix *, ieee80211_keyix *);
 148 static int  wi_newstate(struct ieee80211com *, enum ieee80211_state, int);
 149
 150 static int  wi_scan_ap(struct wi_softc *, u_int16_t, u_int16_t);
 151 static void wi_scan_result(struct wi_softc *, int, int);
 152
 153 static void wi_dump_pkt(struct wi_frame *, struct ieee80211_node *, int rssi);
 154
 155 static int wi_get_debug(struct wi_softc *, struct wi_req *);
 156 static int wi_set_debug(struct wi_softc *, struct wi_req *);
 157
 158 /* support to download firmware for symbol CF card */
 159 static int wi_symbol_write_firm(struct wi_softc *, const void *, int,
 160                 const void *, int);
 161 static int wi_symbol_set_hcr(struct wi_softc *, int);
 162 #ifdef DEVICE_POLLING
 163 static void wi_poll(struct ifnet *ifp, enum poll_cmd cmd, int count);
 164 #endif
 165
 166 static __inline int
 167 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val)
 168 {
 169
 170         val = htole16(val);
 171         return wi_write_rid(sc, rid, &val, sizeof(val));
 172 }
 173
 174 SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, "Wireless driver parameters");
 175
 176 static  struct timeval lasttxerror;     /* time of last tx error msg */
 177 static  int curtxeps;                   /* current tx error msgs/sec */
 178 static  int wi_txerate = 0;             /* tx error rate: max msgs/sec */
 179 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate,
 180             0, "max tx error msgs/sec; 0 to disable msgs");
 181
 182 #define WI_DEBUG
 183 #ifdef WI_DEBUG
 184 static  int wi_debug = 0;
 185 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug,
 186             0, "control debugging printfs");
 187
 188 #define DPRINTF(X)      if (wi_debug) if_printf X
 189 #define DPRINTF2(X)     if (wi_debug > 1) if_printf X
 190 #define IFF_DUMPPKTS(_ifp) \
 191         (((_ifp)->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2))
 192 #else
 193 #define DPRINTF(X)
 194 #define DPRINTF2(X)
 195 #define IFF_DUMPPKTS(_ifp)      0
 196 #endif
 197
 198 #define WI_INTRS        (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
 199
 200 struct wi_card_ident wi_card_ident[] = {
 201         /* CARD_ID                      CARD_NAME               FIRM_TYPE */
 202         { WI_NIC_LUCENT_ID,             WI_NIC_LUCENT_STR,      WI_LUCENT },
 203         { WI_NIC_SONY_ID,               WI_NIC_SONY_STR,        WI_LUCENT },
 204         { WI_NIC_LUCENT_EMB_ID,         WI_NIC_LUCENT_EMB_STR,  WI_LUCENT },
 205         { WI_NIC_EVB2_ID,               WI_NIC_EVB2_STR,        WI_INTERSIL },
 206         { WI_NIC_HWB3763_ID,            WI_NIC_HWB3763_STR,     WI_INTERSIL },
 207         { WI_NIC_HWB3163_ID,            WI_NIC_HWB3163_STR,     WI_INTERSIL },
 208         { WI_NIC_HWB3163B_ID,           WI_NIC_HWB3163B_STR,    WI_INTERSIL },
 209         { WI_NIC_EVB3_ID,               WI_NIC_EVB3_STR,        WI_INTERSIL },
 210         { WI_NIC_HWB1153_ID,            WI_NIC_HWB1153_STR,     WI_INTERSIL },
 211         { WI_NIC_P2_SST_ID,             WI_NIC_P2_SST_STR,      WI_INTERSIL },
 212         { WI_NIC_EVB2_SST_ID,           WI_NIC_EVB2_SST_STR,    WI_INTERSIL },
 213         { WI_NIC_3842_EVA_ID,           WI_NIC_3842_EVA_STR,    WI_INTERSIL },
 214         { WI_NIC_3842_PCMCIA_AMD_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 215         { WI_NIC_3842_PCMCIA_SST_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 216         { WI_NIC_3842_PCMCIA_ATL_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 217         { WI_NIC_3842_PCMCIA_ATS_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 218         { WI_NIC_3842_MINI_AMD_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 219         { WI_NIC_3842_MINI_SST_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 220         { WI_NIC_3842_MINI_ATL_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 221         { WI_NIC_3842_MINI_ATS_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 222         { WI_NIC_3842_PCI_AMD_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 223         { WI_NIC_3842_PCI_SST_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 224         { WI_NIC_3842_PCI_ATS_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 225         { WI_NIC_3842_PCI_ATL_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 226         { WI_NIC_P3_PCMCIA_AMD_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 227         { WI_NIC_P3_PCMCIA_SST_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 228         { WI_NIC_P3_PCMCIA_ATL_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 229         { WI_NIC_P3_PCMCIA_ATS_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 230         { WI_NIC_P3_MINI_AMD_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 231         { WI_NIC_P3_MINI_SST_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 232         { WI_NIC_P3_MINI_ATL_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 233         { WI_NIC_P3_MINI_ATS_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 234         { 0,    NULL,   0 },
 235 };
 236
 237 devclass_t wi_devclass;
 238
 239 int
 240 wi_attach(device_t dev)
 241 {
 242         struct wi_softc *sc = device_get_softc(dev);
 243         struct ieee80211com *ic = &sc->sc_ic;
 244         struct ifnet *ifp = &ic->ic_if;
 245         int i, nrates, buflen;
 246         u_int16_t val;
 247         u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE];
 248         struct ieee80211_rateset *rs;
 249         static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = {
 250                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 251         };
 252         int error;
 253
 254         ifp->if_softc = sc;
 255         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 256
 257         sc->sc_firmware_type = WI_NOTYPE;
 258         sc->wi_cmd_count = 500;
 259
 260         /* Reset the NIC. */
 261         error = wi_reset(sc);
 262         if (error)
 263                 goto fail;
 264
 265         /*
 266          * Read the station address.
 267          * And do it twice. I've seen PRISM-based cards that return
 268          * an error when trying to read it the first time, which causes
 269          * the probe to fail.
 270          */
 271         buflen = IEEE80211_ADDR_LEN;
 272         error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 273         if (error != 0) {
 274                 buflen = IEEE80211_ADDR_LEN;
 275                 error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 276         }
 277         if (error) {
 278                 device_printf(dev, "mac read failed %d\n", error);
 279                 goto fail;
 280         }
 281         if (IEEE80211_ADDR_EQ(ic->ic_myaddr, empty_macaddr)) {
 282                 device_printf(dev, "mac read failed (all zeros)\n");
 283                 error = ENXIO;
 284                 goto fail;
 285         }
 286
 287         /* Read NIC identification */
 288         wi_read_nicid(sc);
 289
 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_poll = wi_poll;
 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 |
 305                       IEEE80211_C_IBSS |
 306                       IEEE80211_C_WEP;
 307         ic->ic_state = IEEE80211_S_INIT;
 308         ic->ic_max_aid = WI_MAX_AID;
 309
 310         /*
 311          * Query the card for available channels and setup the
 312          * channel table.  We assume these are all 11b channels.
 313          */
 314         buflen = sizeof(val);
 315         if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
 316                 val = htole16(0x1fff);  /* assume 1-11 */
 317         KASSERT(val != 0, ("wi_attach: no available channels listed!"));
 318
 319         val <<= 1;                      /* shift for base 1 indices */
 320         for (i = 1; i < 16; i++) {
 321                 if (isset((u_int8_t*)&val, i)) {
 322                         ic->ic_channels[i].ic_freq =
 323                                 ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
 324                         ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B;
 325                 }
 326         }
 327
 328         /*
 329          * Read the default channel from the NIC. This may vary
 330          * depending on the country where the NIC was purchased, so
 331          * we can't hard-code a default and expect it to work for
 332          * everyone.
 333          *
 334          * If no channel is specified, let the 802.11 code select.
 335          */
 336         buflen = sizeof(val);
 337         if (wi_read_rid(sc, WI_RID_OWN_CHNL, &val, &buflen) == 0) {
 338                 val = le16toh(val);
 339                 KASSERT(val < IEEE80211_CHAN_MAX &&
 340                         ic->ic_channels[val].ic_flags != 0,
 341                         ("wi_attach: invalid own channel %u!", val));
 342                 ic->ic_ibss_chan = &ic->ic_channels[val];
 343         } else {
 344                 device_printf(dev,
 345                         "WI_RID_OWN_CHNL failed, using first channel!\n");
 346                 ic->ic_ibss_chan = &ic->ic_channels[0];
 347         }
 348
 349         /*
 350          * Set flags based on firmware version.
 351          */
 352         switch (sc->sc_firmware_type) {
 353         case WI_LUCENT:
 354                 sc->sc_ntxbuf = 1;
 355                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 356 #ifdef WI_HERMES_AUTOINC_WAR
 357                 /* XXX: not confirmed, but never seen for recent firmware */
 358                 if (sc->sc_sta_firmware_ver <  40000) {
 359                         sc->sc_flags |= WI_FLAGS_BUG_AUTOINC;
 360                 }
 361 #endif
 362                 if (sc->sc_sta_firmware_ver >= 60000)
 363                         sc->sc_flags |= WI_FLAGS_HAS_MOR;
 364                 if (sc->sc_sta_firmware_ver >= 60006) {
 365                         ic->ic_caps |= IEEE80211_C_IBSS;
 366                         ic->ic_caps |= IEEE80211_C_MONITOR;
 367                 }
 368                 sc->sc_ibss_port = htole16(1);
 369
 370                 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
 371                 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
 372                 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
 373                 break;
 374
 375         case WI_INTERSIL:
 376                 sc->sc_ntxbuf = WI_NTXBUF;
 377                 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR;
 378                 sc->sc_flags |= WI_FLAGS_HAS_ROAMING;
 379                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 380                 /*
 381                  * Old firmware are slow, so give peace a chance.
 382                  */
 383                 if (sc->sc_sta_firmware_ver < 10000)
 384                         sc->wi_cmd_count = 5000;
 385                 if (sc->sc_sta_firmware_ver > 10101)
 386                         sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
 387                 if (sc->sc_sta_firmware_ver >= 800) {
 388                         ic->ic_caps |= IEEE80211_C_IBSS;
 389                         ic->ic_caps |= IEEE80211_C_MONITOR;
 390                 }
 391                 /*
 392                  * version 0.8.3 and newer are the only ones that are known
 393                  * to currently work.  Earlier versions can be made to work,
 394                  * at least according to the Linux driver.
 395                  */
 396                 if (sc->sc_sta_firmware_ver >= 803)
 397                         ic->ic_caps |= IEEE80211_C_HOSTAP;
 398                 sc->sc_ibss_port = htole16(0);
 399
 400                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 401                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 402                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 403                 break;
 404
 405         case WI_SYMBOL:
 406                 sc->sc_ntxbuf = 1;
 407                 sc->sc_flags |= WI_FLAGS_HAS_DIVERSITY;
 408                 if (sc->sc_sta_firmware_ver >= 25000)
 409                         ic->ic_caps |= IEEE80211_C_IBSS;
 410                 sc->sc_ibss_port = htole16(4);
 411
 412                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 413                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 414                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 415                 break;
 416         }
 417
 418         /*
 419          * Find out if we support WEP on this card.
 420          */
 421         buflen = sizeof(val);
 422         if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
 423             val != htole16(0))
 424                 ic->ic_caps |= IEEE80211_C_WEP;
 425
 426         /* Find supported rates. */
 427         buflen = sizeof(ratebuf);
 428         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
 429         if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
 430                 nrates = le16toh(*(u_int16_t *)ratebuf);
 431                 if (nrates > IEEE80211_RATE_MAXSIZE)
 432                         nrates = IEEE80211_RATE_MAXSIZE;
 433                 rs->rs_nrates = 0;
 434                 for (i = 0; i < nrates; i++)
 435                         if (ratebuf[2+i])
 436                                 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
 437         } else {
 438                 /* XXX fallback on error? */
 439                 rs->rs_nrates = 0;
 440         }
 441
 442         buflen = sizeof(val);
 443         if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
 444             wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
 445                 sc->sc_dbm_offset = le16toh(val);
 446         }
 447
 448         sc->sc_max_datalen = 2304;
 449         sc->sc_system_scale = 1;
 450         sc->sc_cnfauthmode = IEEE80211_AUTH_OPEN;
 451         sc->sc_roaming_mode = 1;
 452
 453         sc->sc_portnum = WI_DEFAULT_PORT;
 454         sc->sc_authtype = WI_DEFAULT_AUTHTYPE;
 455
 456         bzero(sc->sc_nodename, sizeof(sc->sc_nodename));
 457         sc->sc_nodelen = sizeof(WI_DEFAULT_NODENAME) - 1;
 458         bcopy(WI_DEFAULT_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 459
 460         bzero(sc->sc_net_name, sizeof(sc->sc_net_name));
 461         bcopy(WI_DEFAULT_NETNAME, sc->sc_net_name,
 462             sizeof(WI_DEFAULT_NETNAME) - 1);
 463
 464         /*
 465          * Call MI attach routine.
 466          */
 467         ieee80211_ifattach(ic);
 468         /* override state transition method */
 469         sc->sc_newstate = ic->ic_newstate;
 470         sc->sc_key_alloc = ic->ic_crypto.cs_key_alloc;
 471         ic->ic_crypto.cs_key_alloc = wi_key_alloc;
 472         ic->ic_newstate = wi_newstate;
 473         ieee80211_media_init(ic, wi_media_change, wi_media_status);
 474
 475         bpfattach_dlt(ifp, DLT_IEEE802_11_RADIO,
 476                 sizeof(struct ieee80211_frame) + sizeof(sc->sc_tx_th),
 477                 &sc->sc_drvbpf);
 478         /*
 479          * Initialize constant fields.
 480          * XXX make header lengths a multiple of 32-bits so subsequent
 481          *     headers are properly aligned; this is a kludge to keep
 482          *     certain applications happy.
 483          *
 484          * NB: the channel is setup each time we transition to the
 485          *     RUN state to avoid filling it in for each frame.
 486          */
 487         sc->sc_tx_th_len = roundup(sizeof(sc->sc_tx_th), sizeof(u_int32_t));
 488         sc->sc_tx_th.wt_ihdr.it_len = htole16(sc->sc_tx_th_len);
 489         sc->sc_tx_th.wt_ihdr.it_present = htole32(WI_TX_RADIOTAP_PRESENT);
 490
 491         sc->sc_rx_th_len = roundup(sizeof(sc->sc_rx_th), sizeof(u_int32_t));
 492         sc->sc_rx_th.wr_ihdr.it_len = htole16(sc->sc_rx_th_len);
 493         sc->sc_rx_th.wr_ihdr.it_present = htole32(WI_RX_RADIOTAP_PRESENT);
 494
 495         error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
 496                                wi_intr, sc, &sc->wi_intrhand,
 497                                ifp->if_serializer);
 498         if (error) {
 499                 bpfdetach(ifp);
 500                 ieee80211_ifdetach(ic);
 501                 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
 502                 goto fail;
 503         }
 504
 505         if (bootverbose)
 506                 ieee80211_announce(ic);
 507
 508         return(0);
 509
 510 fail:
 511         wi_free(dev);
 512         return(error);
 513 }
 514
 515 int
 516 wi_detach(device_t dev)
 517 {
 518         struct wi_softc *sc = device_get_softc(dev);
 519         struct ifnet *ifp = &sc->sc_ic.ic_if;
 520
 521         lwkt_serialize_enter(ifp->if_serializer);
 522
 523         /* check if device was removed */
 524         sc->wi_gone |= !bus_child_present(dev);
 525         wi_stop(ifp, 0);
 526         bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
 527
 528         lwkt_serialize_exit(ifp->if_serializer);
 529
 530         bpfdetach(ifp);
 531         ieee80211_ifdetach(&sc->sc_ic);
 532         wi_free(dev);
 533         return (0);
 534 }
 535
 536 void
 537 wi_shutdown(device_t dev)
 538 {
 539         struct wi_softc *sc = device_get_softc(dev);
 540         struct ifnet *ifp = &sc->sc_if;
 541
 542         lwkt_serialize_enter(ifp->if_serializer);
 543         wi_stop(ifp, 1);
 544         lwkt_serialize_exit(ifp->if_serializer);
 545 }
 546
 547 #ifdef DEVICE_POLLING
 548
 549 static void
 550 wi_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
 551 {
 552         struct wi_softc *sc = ifp->if_softc;
 553         uint16_t status;
 554
 555         switch(cmd) {
 556         case POLL_REGISTER:
 557                 /* disable interruptds */
 558                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 559                 break;
 560         case POLL_DEREGISTER:
 561                 /* enable interrupts */
 562                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 563                 break;
 564         default:
 565                 status = CSR_READ_2(sc, WI_EVENT_STAT);
 566
 567                 if (status & WI_EV_RX)
 568                         wi_rx_intr(sc);
 569                 if (status & WI_EV_ALLOC)
 570                         wi_tx_intr(sc);
 571                 if (status & WI_EV_INFO)
 572                         wi_info_intr(sc);
 573
 574                 if (cmd == POLL_AND_CHECK_STATUS) {
 575                         if (status & WI_EV_INFO)
 576                                 wi_info_intr(sc);
 577                 }
 578
 579                 if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 580                     (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 && !ifq_is_empty(&ifp->if_snd)) {
 581                         wi_start(ifp);
 582                 }
 583                 break;
 584         }
 585 }
 586 #endif /* DEVICE_POLLING */
 587
 588 void
 589 wi_intr(void *arg)
 590 {
 591         struct wi_softc *sc = arg;
 592         struct ifnet *ifp = &sc->sc_ic.ic_if;
 593         u_int16_t status;
 594
 595         if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) {
 596                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 597                 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
 598                 return;
 599         }
 600
 601         /* Disable interrupts. */
 602         CSR_WRITE_2(sc, WI_INT_EN, 0);
 603
 604         status = CSR_READ_2(sc, WI_EVENT_STAT);
 605         if (status & WI_EV_RX)
 606                 wi_rx_intr(sc);
 607         if (status & WI_EV_ALLOC)
 608                 wi_tx_intr(sc);
 609         if (status & WI_EV_TX_EXC)
 610                 wi_tx_ex_intr(sc);
 611         if (status & WI_EV_INFO)
 612                 wi_info_intr(sc);
 613         if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 614             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 &&
 615             !ifq_is_empty(&ifp->if_snd))
 616                 wi_start(ifp);
 617
 618         /* Re-enable interrupts. */
 619         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 620
 621         return;
 622 }
 623
 624 void
 625 wi_init(void *arg)
 626 {
 627         struct wi_softc *sc = arg;
 628         struct ifnet *ifp = &sc->sc_if;
 629         struct ieee80211com *ic = &sc->sc_ic;
 630         struct wi_joinreq join;
 631         int i;
 632         int error = 0, wasenabled;
 633
 634         if (sc->wi_gone)
 635                 return;
 636
 637         if ((wasenabled = sc->sc_enabled))
 638                 wi_stop(ifp, 1);
 639         wi_reset(sc);
 640
 641         /* common 802.11 configuration */
 642         ic->ic_flags &= ~IEEE80211_F_IBSSON;
 643         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
 644         switch (ic->ic_opmode) {
 645         case IEEE80211_M_STA:
 646                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_BSS);
 647                 break;
 648         case IEEE80211_M_IBSS:
 649                 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_ibss_port);
 650                 ic->ic_flags |= IEEE80211_F_IBSSON;
 651                 break;
 652         case IEEE80211_M_AHDEMO:
 653                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 654                 break;
 655         case IEEE80211_M_HOSTAP:
 656                 /*
 657                  * For PRISM cards, override the empty SSID, because in
 658                  * HostAP mode the controller will lock up otherwise.
 659                  */
 660                 if (sc->sc_firmware_type == WI_INTERSIL &&
 661                     ic->ic_des_esslen == 0) {
 662                         ic->ic_des_essid[0] = ' ';
 663                         ic->ic_des_esslen = 1;
 664                 }
 665                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_HOSTAP);
 666                 break;
 667         case IEEE80211_M_MONITOR:
 668                 if (sc->sc_firmware_type == WI_LUCENT)
 669                         wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 670                 wi_cmd(sc, WI_CMD_DEBUG | (WI_TEST_MONITOR << 8), 0, 0, 0);
 671                 break;
 672         }
 673
 674         /* Intersil interprets this RID as joining ESS even in IBSS mode */
 675         if (sc->sc_firmware_type == WI_LUCENT &&
 676             (ic->ic_flags & IEEE80211_F_IBSSON) && ic->ic_des_esslen > 0)
 677                 wi_write_val(sc, WI_RID_CREATE_IBSS, 1);
 678         else
 679                 wi_write_val(sc, WI_RID_CREATE_IBSS, 0);
 680         wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
 681         wi_write_ssid(sc, WI_RID_DESIRED_SSID, ic->ic_des_essid,
 682             ic->ic_des_esslen);
 683         wi_write_val(sc, WI_RID_OWN_CHNL,
 684                 ieee80211_chan2ieee(ic, ic->ic_ibss_chan));
 685         wi_write_ssid(sc, WI_RID_OWN_SSID, ic->ic_des_essid, ic->ic_des_esslen);
 686
 687         IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
 688         wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, IEEE80211_ADDR_LEN);
 689
 690         if (ic->ic_caps & IEEE80211_C_PMGT) {
 691                 wi_write_val(sc, WI_RID_PM_ENABLED,
 692                     (ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0);
 693         }
 694
 695         /* not yet common 802.11 configuration */
 696         wi_write_val(sc, WI_RID_MAX_DATALEN, sc->sc_max_datalen);
 697         wi_write_val(sc, WI_RID_RTS_THRESH, ic->ic_rtsthreshold);
 698         if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
 699                 wi_write_val(sc, WI_RID_FRAG_THRESH, ic->ic_fragthreshold);
 700
 701         /* driver specific 802.11 configuration */
 702         if (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)
 703                 wi_write_val(sc, WI_RID_SYSTEM_SCALE, sc->sc_system_scale);
 704         if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
 705                 wi_write_val(sc, WI_RID_ROAMING_MODE, sc->sc_roaming_mode);
 706         if (sc->sc_flags & WI_FLAGS_HAS_MOR)
 707                 wi_write_val(sc, WI_RID_MICROWAVE_OVEN, sc->sc_microwave_oven);
 708         wi_write_txrate(sc);
 709         wi_write_ssid(sc, WI_RID_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 710
 711         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
 712             sc->sc_firmware_type == WI_INTERSIL) {
 713                 wi_write_val(sc, WI_RID_OWN_BEACON_INT, ic->ic_bintval);
 714                 wi_write_val(sc, WI_RID_BASIC_RATE, 0x03);   /* 1, 2 */
 715                 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0x0f); /* 1, 2, 5.5, 11 */
 716                 wi_write_val(sc, WI_RID_DTIM_PERIOD, ic->ic_dtim_period);
 717         }
 718
 719         /*
 720          * Initialize promisc mode.
 721          *      Being in the Host-AP mode causes a great
 722          *      deal of pain if primisc mode is set.
 723          *      Therefore we avoid confusing the firmware
 724          *      and always reset promisc mode in Host-AP
 725          *      mode.  Host-AP sees all the packets anyway.
 726          */
 727         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
 728             (ifp->if_flags & IFF_PROMISC) != 0) {
 729                 wi_write_val(sc, WI_RID_PROMISC, 1);
 730         } else {
 731                 wi_write_val(sc, WI_RID_PROMISC, 0);
 732         }
 733
 734         /* Configure WEP. */
 735         if (ic->ic_caps & IEEE80211_C_WEP) {
 736                 sc->sc_cnfauthmode = ic->ic_bss->ni_authmode;
 737                 wi_write_wep(sc);
 738         } else {
 739                 sc->sc_encryption = 0;
 740         }
 741
 742         /* Set multicast filter. */
 743         wi_write_multi(sc);
 744
 745         /* Allocate fids for the card */
 746         if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) {
 747                 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
 748                 if (sc->sc_firmware_type == WI_SYMBOL)
 749                         sc->sc_buflen = 1585;   /* XXX */
 750                 for (i = 0; i < sc->sc_ntxbuf; i++) {
 751                         error = wi_alloc_fid(sc, sc->sc_buflen,
 752                             &sc->sc_txd[i].d_fid);
 753                         if (error) {
 754                                 if_printf(ifp,
 755                                     "tx buffer allocation failed (error %u)\n",
 756                                     error);
 757                                 goto out;
 758                         }
 759                         sc->sc_txd[i].d_len = 0;
 760                 }
 761         }
 762         sc->sc_txcur = sc->sc_txnext = 0;
 763
 764         /* Enable desired port */
 765         wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
 766
 767         sc->sc_enabled = 1;
 768         ifp->if_flags |= IFF_RUNNING;
 769         ifp->if_flags &= ~IFF_OACTIVE;
 770         if (ic->ic_opmode == IEEE80211_M_AHDEMO ||
 771             ic->ic_opmode == IEEE80211_M_IBSS ||
 772             ic->ic_opmode == IEEE80211_M_MONITOR ||
 773             ic->ic_opmode == IEEE80211_M_HOSTAP)
 774                 ieee80211_create_ibss(ic, ic->ic_ibss_chan);
 775
 776         /* Enable interrupts if not polling */
 777 #ifdef DEVICE_POLLING
 778         if ((ifp->if_flags & IFF_POLLING) == 0)
 779 #endif
 780                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 781
 782         if (!wasenabled &&
 783             ic->ic_opmode == IEEE80211_M_HOSTAP &&
 784             sc->sc_firmware_type == WI_INTERSIL) {
 785                 /* XXX: some card need to be re-enabled for hostap */
 786                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
 787                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
 788         }
 789
 790         if (ic->ic_opmode == IEEE80211_M_STA &&
 791             ((ic->ic_flags & IEEE80211_F_DESBSSID) ||
 792             ic->ic_des_chan != IEEE80211_CHAN_ANYC)) {
 793                 memset(&join, 0, sizeof(join));
 794                 if (ic->ic_flags & IEEE80211_F_DESBSSID)
 795                         IEEE80211_ADDR_COPY(&join.wi_bssid, ic->ic_des_bssid);
 796                 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC)
 797                         join.wi_chan = htole16(
 798                                 ieee80211_chan2ieee(ic, ic->ic_des_chan));
 799                 /* Lucent firmware does not support the JOIN RID. */
 800                 if (sc->sc_firmware_type != WI_LUCENT)
 801                         wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
 802         }
 803         return;
 804 out:
 805         if (error) {
 806                 if_printf(ifp, "interface not running\n");
 807                 wi_stop(ifp, 1);
 808         }
 809
 810         DPRINTF((ifp, "wi_init: return %d\n", error));
 811         return;
 812 }
 813
 814 void
 815 wi_stop(struct ifnet *ifp, int disable)
 816 {
 817         struct ieee80211com *ic = (struct ieee80211com *) ifp;
 818         struct wi_softc *sc = ifp->if_softc;
 819
 820         DELAY(100000);
 821
 822         ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
 823         if (sc->sc_enabled && !sc->wi_gone) {
 824                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 825                 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
 826                 if (disable) {
 827 #ifdef __NetBSD__
 828                         if (sc->sc_disable)
 829                                 (*sc->sc_disable)(sc);
 830 #endif
 831                         sc->sc_enabled = 0;
 832                 }
 833         } else if (sc->wi_gone && disable)      /* gone --> not enabled */
 834             sc->sc_enabled = 0;
 835
 836         sc->sc_tx_timer = 0;
 837         sc->sc_scan_timer = 0;
 838         sc->sc_false_syns = 0;
 839         sc->sc_naps = 0;
 840         ifp->if_flags &= ~(IFF_OACTIVE | IFF_RUNNING);
 841         ifp->if_timer = 0;
 842 }
 843
 844 static void
 845 wi_start(struct ifnet *ifp)
 846 {
 847         struct wi_softc *sc = ifp->if_softc;
 848         struct ieee80211com *ic = &sc->sc_ic;
 849         struct ieee80211_node *ni;
 850         struct ieee80211_frame *wh;
 851         struct mbuf *m0;
 852         struct wi_frame frmhdr;
 853         int cur, fid, off, error;
 854
 855         if (sc->wi_gone || (sc->sc_flags & WI_FLAGS_OUTRANGE))
 856                 return;
 857
 858         memset(&frmhdr, 0, sizeof(frmhdr));
 859         cur = sc->sc_txnext;
 860         for (;;) {
 861                 IF_POLL(&ic->ic_mgtq, m0);
 862                 if (m0 != NULL) {
 863                         if (sc->sc_txd[cur].d_len != 0) {
 864                                 ifp->if_flags |= IFF_OACTIVE;
 865                                 break;
 866                         }
 867                         IF_DEQUEUE(&ic->ic_mgtq, m0);
 868                         /*
 869                          * Hack!  The referenced node pointer is in the
 870                          * rcvif field of the packet header.  This is
 871                          * placed there by ieee80211_mgmt_output because
 872                          * we need to hold the reference with the frame
 873                          * and there's no other way (other than packet
 874                          * tags which we consider too expensive to use)
 875                          * to pass it along.
 876                          */
 877                         ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
 878                         m0->m_pkthdr.rcvif = NULL;
 879
 880                         m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
 881                             (caddr_t)&frmhdr.wi_ehdr);
 882                         frmhdr.wi_ehdr.ether_type = 0;
 883                         wh = mtod(m0, struct ieee80211_frame *);
 884                 } else {
 885                         struct ether_header *eh;
 886
 887                         if (ic->ic_state != IEEE80211_S_RUN)
 888                                 break;
 889                         m0 = ifq_poll(&ifp->if_snd);
 890                         if (m0 == NULL)
 891                                 break;
 892                         if (sc->sc_txd[cur].d_len != 0) {
 893                                 ifp->if_flags |= IFF_OACTIVE;
 894                                 break;
 895                         }
 896
 897                         ifq_dequeue(&ifp->if_snd, m0);
 898                         if (m0->m_len < sizeof(struct ether_header)) {
 899                                 m0 = m_pullup(m0, sizeof(struct ether_header));
 900                                 if (m0 == NULL) {
 901                                         ifp->if_oerrors++;
 902                                         continue;
 903                                 }
 904                         }
 905
 906                         eh = mtod(m0, struct ether_header *);
 907                         ni = ieee80211_find_txnode(ic, eh->ether_dhost);
 908                         if (ni == NULL) {
 909                                 m_freem(m0);
 910                                 ifp->if_oerrors++;
 911                                 continue;
 912                         }
 913
 914                         ifp->if_opackets++;
 915                         m_copydata(m0, 0, ETHER_HDR_LEN,
 916                             (caddr_t)&frmhdr.wi_ehdr);
 917                         BPF_MTAP(ifp, m0);
 918
 919                         m0 = ieee80211_encap(ic, m0, ni);
 920                         if (m0 == NULL) {
 921                                 ieee80211_free_node(ni);
 922                                 ifp->if_oerrors++;
 923                                 continue;
 924                         }
 925                         wh = mtod(m0, struct ieee80211_frame *);
 926                 }
 927
 928                 if (ic->ic_rawbpf != NULL)
 929                         bpf_mtap(ic->ic_rawbpf, m0);
 930
 931                 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 932                 /* XXX check key for SWCRYPT instead of using operating mode */
 933                 if ((wh->i_fc[1] & IEEE80211_FC1_WEP) &&
 934                     (sc->sc_encryption & HOST_ENCRYPT)) {
 935                         if (ieee80211_crypto_encap(ic, ni, m0) == NULL) {
 936                                 if (ni != NULL)
 937                                         ieee80211_free_node(ni);
 938                                 m_freem(m0);
 939                                 ifp->if_oerrors++;
 940                                 continue;
 941                         }
 942                         frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 943                 }
 944
 945                 if (sc->sc_drvbpf) {
 946                         sc->sc_tx_th.wt_rate =
 947                                 ni->ni_rates.rs_rates[ni->ni_txrate];
 948                         bpf_ptap(sc->sc_drvbpf, m0, &sc->sc_tx_th,
 949                                  sc->sc_tx_th_len);
 950                 }
 951
 952                 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 953                     (caddr_t)&frmhdr.wi_whdr);
 954                 m_adj(m0, sizeof(struct ieee80211_frame));
 955                 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 956                 if (IFF_DUMPPKTS(ifp))
 957                         wi_dump_pkt(&frmhdr, NULL, -1);
 958                 fid = sc->sc_txd[cur].d_fid;
 959                 off = sizeof(frmhdr);
 960                 error = wi_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0
 961                      || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
 962                 m_freem(m0);
 963                 if (ni != NULL)
 964                         ieee80211_free_node(ni);
 965                 if (error) {
 966                         ifp->if_oerrors++;
 967                         continue;
 968                 }
 969                 sc->sc_txd[cur].d_len = off;
 970                 if (sc->sc_txcur == cur) {
 971                         if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
 972                                 if_printf(ifp, "xmit failed\n");
 973                                 sc->sc_txd[cur].d_len = 0;
 974                                 continue;
 975                         }
 976                         sc->sc_tx_timer = 5;
 977                         ifp->if_timer = 1;
 978                 }
 979                 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 980         }
 981 }
 982
 983 static int
 984 wi_reset(struct wi_softc *sc)
 985 {
 986         struct ieee80211com *ic = &sc->sc_ic;
 987         struct ifnet *ifp = &ic->ic_if;
 988 #define WI_INIT_TRIES 3
 989         int i;
 990         int error = 0;
 991         int tries;
 992
 993         /* Symbol firmware cannot be initialized more than once */
 994         if (sc->sc_firmware_type == WI_SYMBOL && sc->sc_reset)
 995                 return (0);
 996         if (sc->sc_firmware_type == WI_SYMBOL)
 997                 tries = 1;
 998         else
 999                 tries = WI_INIT_TRIES;
1000
1001         for (i = 0; i < tries; i++) {
1002                 if ((error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0)) == 0)
1003                         break;
1004                 DELAY(WI_DELAY * 1000);
1005         }
1006         sc->sc_reset = 1;
1007
1008         if (i == tries) {
1009                 if_printf(ifp, "init failed\n");
1010                 return (error);
1011         }
1012
1013         CSR_WRITE_2(sc, WI_INT_EN, 0);
1014         CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
1015
1016         /* Calibrate timer. */
1017         wi_write_val(sc, WI_RID_TICK_TIME, 8);
1018
1019         return (0);
1020 #undef WI_INIT_TRIES
1021 }
1022
1023 static void
1024 wi_watchdog(struct ifnet *ifp)
1025 {
1026         struct wi_softc *sc = ifp->if_softc;
1027
1028         ifp->if_timer = 0;
1029         if (!sc->sc_enabled)
1030                 return;
1031
1032         if (sc->sc_tx_timer) {
1033                 if (--sc->sc_tx_timer == 0) {
1034                         if_printf(ifp, "device timeout\n");
1035                         ifp->if_oerrors++;
1036                         wi_init(ifp->if_softc);
1037                         return;
1038                 }
1039                 ifp->if_timer = 1;
1040         }
1041
1042         if (sc->sc_scan_timer) {
1043                 if (--sc->sc_scan_timer <= WI_SCAN_WAIT - WI_SCAN_INQWAIT &&
1044                     sc->sc_firmware_type == WI_INTERSIL) {
1045                         DPRINTF((ifp, "wi_watchdog: inquire scan\n"));
1046                         wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
1047                 }
1048                 if (sc->sc_scan_timer)
1049                         ifp->if_timer = 1;
1050         }
1051
1052         /* TODO: rate control */
1053         ieee80211_watchdog(&sc->sc_ic);
1054 }
1055
1056 static int
1057 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1058 {
1059         struct wi_softc *sc = ifp->if_softc;
1060         struct ieee80211com *ic = &sc->sc_ic;
1061         struct ifreq *ifr = (struct ifreq *)data;
1062         struct ieee80211req *ireq;
1063         u_int8_t nodename[IEEE80211_NWID_LEN];
1064         int error = 0;
1065         struct wi_req wreq;
1066
1067         if (sc->wi_gone) {
1068                 error = ENODEV;
1069                 goto out;
1070         }
1071
1072         switch (cmd) {
1073         case SIOCSIFFLAGS:
1074                 /*
1075                  * Can't do promisc and hostap at the same time.  If all that's
1076                  * changing is the promisc flag, try to short-circuit a call to
1077                  * wi_init() by just setting PROMISC in the hardware.
1078                  */
1079                 if (ifp->if_flags & IFF_UP) {
1080                         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
1081                             ifp->if_flags & IFF_RUNNING) {
1082                                 if (ifp->if_flags & IFF_PROMISC &&
1083                                     !(sc->sc_if_flags & IFF_PROMISC)) {
1084                                         wi_write_val(sc, WI_RID_PROMISC, 1);
1085                                 } else if (!(ifp->if_flags & IFF_PROMISC) &&
1086                                     sc->sc_if_flags & IFF_PROMISC) {
1087                                         wi_write_val(sc, WI_RID_PROMISC, 0);
1088                                 } else {
1089                                         wi_init(sc);
1090                                 }
1091                         } else {
1092                                 wi_init(sc);
1093                         }
1094                 } else {
1095                         if (ifp->if_flags & IFF_RUNNING) {
1096                                 wi_stop(ifp, 1);
1097                         }
1098                         sc->wi_gone = 0;
1099                 }
1100                 sc->sc_if_flags = ifp->if_flags;
1101                 error = 0;
1102                 break;
1103         case SIOCADDMULTI:
1104         case SIOCDELMULTI:
1105                 error = wi_write_multi(sc);
1106                 break;
1107         case SIOCGIFGENERIC:
1108                 error = wi_get_cfg(ifp, cmd, data, cr);
1109                 break;
1110         case SIOCSIFGENERIC:
1111                 error = suser_cred(cr, NULL_CRED_OKAY);
1112                 if (error)
1113                         break;
1114                 error = wi_set_cfg(ifp, cmd, data);
1115                 break;
1116         case SIOCGPRISM2DEBUG:
1117                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1118                 if (error)
1119                         break;
1120                 if (!(ifp->if_flags & IFF_RUNNING) ||
1121                     sc->sc_firmware_type == WI_LUCENT) {
1122                         error = EIO;
1123                         break;
1124                 }
1125                 error = wi_get_debug(sc, &wreq);
1126                 if (error == 0)
1127                         error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
1128                 break;
1129         case SIOCSPRISM2DEBUG:
1130                 if ((error = suser_cred(cr, NULL_CRED_OKAY)))
1131                         goto out;
1132                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1133                 if (error)
1134                         break;
1135                 error = wi_set_debug(sc, &wreq);
1136                 break;
1137         case SIOCG80211:
1138                 ireq = (struct ieee80211req *) data;
1139                 switch (ireq->i_type) {
1140                 case IEEE80211_IOC_STATIONNAME:
1141                         ireq->i_len = sc->sc_nodelen + 1;
1142                         error = copyout(sc->sc_nodename, ireq->i_data,
1143                                         ireq->i_len);
1144                         break;
1145                 default:
1146                         error = ieee80211_ioctl(ic, cmd, data, cr);
1147                         break;
1148                 }
1149                 break;
1150         case SIOCS80211:
1151                 error = suser_cred(cr, NULL_CRED_OKAY);
1152                 if (error)
1153                         break;
1154                 ireq = (struct ieee80211req *) data;
1155                 switch (ireq->i_type) {
1156                 case IEEE80211_IOC_STATIONNAME:
1157                         if (ireq->i_val != 0 ||
1158                             ireq->i_len > IEEE80211_NWID_LEN) {
1159                                 error = EINVAL;
1160                                 break;
1161                         }
1162                         memset(nodename, 0, IEEE80211_NWID_LEN);
1163                         error = copyin(ireq->i_data, nodename, ireq->i_len);
1164                         if (error)
1165                                 break;
1166                         if (sc->sc_enabled) {
1167                                 error = wi_write_ssid(sc, WI_RID_NODENAME,
1168                                         nodename, ireq->i_len);
1169                                 if (error)
1170                                         break;
1171                         }
1172                         memcpy(sc->sc_nodename, nodename, IEEE80211_NWID_LEN);
1173                         sc->sc_nodelen = ireq->i_len;
1174                         break;
1175                 default:
1176                         error = ieee80211_ioctl(ic, cmd, data, cr);
1177                         break;
1178                 }
1179                 break;
1180         case SIOCSIFCAP:
1181                 if (ifp->if_flags & IFF_RUNNING)
1182                         wi_init(sc);
1183                 break;
1184         default:
1185                 error = ieee80211_ioctl(ic, cmd, data, cr);
1186                 break;
1187         }
1188         if (error == ENETRESET) {
1189                 if (sc->sc_enabled)
1190                         wi_init(sc);    /* XXX no error return */
1191                 error = 0;
1192         }
1193 out:
1194         return error;
1195 }
1196
1197 static int
1198 wi_media_change(struct ifnet *ifp)
1199 {
1200         struct wi_softc *sc = ifp->if_softc;
1201         int error;
1202
1203         error = ieee80211_media_change(ifp);
1204         if (error == ENETRESET) {
1205                 if (sc->sc_enabled)
1206                         wi_init(sc);    /* XXX no error return */
1207                 error = 0;
1208         }
1209         return error;
1210 }
1211
1212 static void
1213 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
1214 {
1215         struct wi_softc *sc = ifp->if_softc;
1216         struct ieee80211com *ic = &sc->sc_ic;
1217         u_int16_t val;
1218         int rate, len;
1219
1220         if (sc->wi_gone) {      /* hardware gone (e.g. ejected) */
1221                 imr->ifm_active = IFM_IEEE80211 | IFM_NONE;
1222                 imr->ifm_status = 0;
1223                 return;
1224         }
1225
1226         imr->ifm_status = IFM_AVALID;
1227         imr->ifm_active = IFM_IEEE80211;
1228         if (!sc->sc_enabled) {  /* port !enabled, have no status */
1229                 imr->ifm_active |= IFM_NONE;
1230                 return;
1231         }
1232         if (ic->ic_state == IEEE80211_S_RUN &&
1233             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0)
1234                 imr->ifm_status |= IFM_ACTIVE;
1235         len = sizeof(val);
1236         if (wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 &&
1237             len == sizeof(val)) {
1238                 /* convert to 802.11 rate */
1239                 val = le16toh(val);
1240                 rate = val * 2;
1241                 if (sc->sc_firmware_type == WI_LUCENT) {
1242                         if (rate == 10)
1243                                 rate = 11;      /* 5.5Mbps */
1244                 } else {
1245                         if (rate == 4*2)
1246                                 rate = 11;      /* 5.5Mbps */
1247                         else if (rate == 8*2)
1248                                 rate = 22;      /* 11Mbps */
1249                 }
1250         } else {
1251                 rate = 0;
1252         }
1253         imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B);
1254         switch (ic->ic_opmode) {
1255         case IEEE80211_M_STA:
1256                 break;
1257         case IEEE80211_M_IBSS:
1258                 imr->ifm_active |= IFM_IEEE80211_ADHOC;
1259                 break;
1260         case IEEE80211_M_AHDEMO:
1261                 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0;
1262                 break;
1263         case IEEE80211_M_HOSTAP:
1264                 imr->ifm_active |= IFM_IEEE80211_HOSTAP;
1265                 break;
1266         case IEEE80211_M_MONITOR:
1267                 imr->ifm_active |= IFM_IEEE80211_MONITOR;
1268                 break;
1269         }
1270 }
1271
1272 static void
1273 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
1274 {
1275         struct ieee80211com *ic = &sc->sc_ic;
1276         struct ieee80211_node *ni = ic->ic_bss;
1277         struct ifnet *ifp = &ic->ic_if;
1278
1279         if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
1280                 return;
1281
1282         DPRINTF((ifp, "wi_sync_bssid: bssid %6D -> %6D ?\n", ni->ni_bssid, ":",
1283             new_bssid, ":"));
1284
1285         /* In promiscuous mode, the BSSID field is not a reliable
1286          * indicator of the firmware's BSSID. Damp spurious
1287          * change-of-BSSID indications.
1288          */
1289         if ((ifp->if_flags & IFF_PROMISC) != 0 &&
1290             !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns,
1291                          WI_MAX_FALSE_SYNS))
1292                 return;
1293
1294         sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1);
1295         /*
1296          * XXX hack; we should create a new node with the new bssid
1297          * and replace the existing ic_bss with it but since we don't
1298          * process management frames to collect state we cheat by
1299          * reusing the existing node as we know wi_newstate will be
1300          * called and it will overwrite the node state.
1301          */
1302         ieee80211_sta_join(ic, ieee80211_ref_node(ni));
1303 }
1304
1305 static void
1306 wi_rx_monitor(struct wi_softc *sc, int fid)
1307 {
1308         struct ieee80211com *ic = &sc->sc_ic;
1309         struct ifnet *ifp = &ic->ic_if;
1310         struct wi_frame *rx_frame;
1311         struct mbuf *m;
1312         int datlen, hdrlen;
1313
1314         /* first allocate mbuf for packet storage */
1315         m = m_getcl(MB_DONTWAIT, MT_DATA, 0);
1316         if (m == NULL) {
1317                 ifp->if_ierrors++;
1318                 return;
1319         }
1320
1321         m->m_pkthdr.rcvif = ifp;
1322
1323         /* now read wi_frame first so we know how much data to read */
1324         if (wi_read_bap(sc, fid, 0, mtod(m, caddr_t), sizeof(*rx_frame))) {
1325                 ifp->if_ierrors++;
1326                 goto done;
1327         }
1328
1329         rx_frame = mtod(m, struct wi_frame *);
1330
1331         switch ((rx_frame->wi_status & WI_STAT_MAC_PORT) >> 8) {
1332         case 7:
1333                 switch (rx_frame->wi_whdr.i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
1334                 case IEEE80211_FC0_TYPE_DATA:
1335                         hdrlen = WI_DATA_HDRLEN;
1336                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1337                         break;
1338                 case IEEE80211_FC0_TYPE_MGT:
1339                         hdrlen = WI_MGMT_HDRLEN;
1340                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1341                         break;
1342                 case IEEE80211_FC0_TYPE_CTL:
1343                         /*
1344                          * prism2 cards don't pass control packets
1345                          * down properly or consistently, so we'll only
1346                          * pass down the header.
1347                          */
1348                         hdrlen = WI_CTL_HDRLEN;
1349                         datlen = 0;
1350                         break;
1351                 default:
1352                         if_printf(ifp, "received packet of unknown type "
1353                                 "on port 7\n");
1354                         ifp->if_ierrors++;
1355                         goto done;
1356                 }
1357                 break;
1358         case 0:
1359                 hdrlen = WI_DATA_HDRLEN;
1360                 datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1361                 break;
1362         default:
1363                 if_printf(ifp, "received packet on invalid "
1364                     "port (wi_status=0x%x)\n", rx_frame->wi_status);
1365                 ifp->if_ierrors++;
1366                 goto done;
1367         }
1368
1369         if (hdrlen + datlen + 2 > MCLBYTES) {
1370                 if_printf(ifp, "oversized packet received "
1371                     "(wi_dat_len=%d, wi_status=0x%x)\n",
1372                     datlen, rx_frame->wi_status);
1373                 ifp->if_ierrors++;
1374                 goto done;
1375         }
1376
1377         if (wi_read_bap(sc, fid, hdrlen, mtod(m, caddr_t) + hdrlen,
1378             datlen + 2) == 0) {
1379                 m->m_pkthdr.len = m->m_len = hdrlen + datlen;
1380                 ifp->if_ipackets++;
1381                 BPF_MTAP(ifp, m);       /* Handle BPF listeners. */
1382         } else
1383                 ifp->if_ierrors++;
1384 done:
1385         m_freem(m);
1386 }
1387
1388 static void
1389 wi_rx_intr(struct wi_softc *sc)
1390 {
1391         struct ieee80211com *ic = &sc->sc_ic;
1392         struct ifnet *ifp = &ic->ic_if;
1393         struct wi_frame frmhdr;
1394         struct mbuf *m;
1395         struct ieee80211_frame *wh;
1396         struct ieee80211_node *ni;
1397         int fid, len, off, rssi;
1398         u_int8_t dir;
1399         u_int16_t status;
1400         u_int32_t rstamp;
1401
1402         fid = CSR_READ_2(sc, WI_RX_FID);
1403
1404         if (sc->wi_debug.wi_monitor) {
1405                 /*
1406                  * If we are in monitor mode just
1407                  * read the data from the device.
1408                  */
1409                 wi_rx_monitor(sc, fid);
1410                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1411                 return;
1412         }
1413
1414         /* First read in the frame header */
1415         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
1416                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1417                 ifp->if_ierrors++;
1418                 DPRINTF((ifp, "wi_rx_intr: read fid %x failed\n", fid));
1419                 return;
1420         }
1421
1422         if (IFF_DUMPPKTS(ifp))
1423                 wi_dump_pkt(&frmhdr, NULL, frmhdr.wi_rx_signal);
1424
1425         /*
1426          * Drop undecryptable or packets with receive errors here
1427          */
1428         status = le16toh(frmhdr.wi_status);
1429         if (status & WI_STAT_ERRSTAT) {
1430                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1431                 ifp->if_ierrors++;
1432                 DPRINTF((ifp, "wi_rx_intr: fid %x error status %x\n",
1433                          fid, status));
1434                 return;
1435         }
1436         rssi = frmhdr.wi_rx_signal;
1437         rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
1438             le16toh(frmhdr.wi_rx_tstamp1);
1439
1440         len = le16toh(frmhdr.wi_dat_len);
1441         off = ALIGN(sizeof(struct ieee80211_frame));
1442
1443         /*
1444          * Sometimes the PRISM2.x returns bogusly large frames. Except
1445          * in monitor mode, just throw them away.
1446          */
1447         if (off + len > MCLBYTES) {
1448                 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1449                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1450                         ifp->if_ierrors++;
1451                         DPRINTF((ifp, "wi_rx_intr: oversized packet\n"));
1452                         return;
1453                 } else
1454                         len = 0;
1455         }
1456
1457         m = m_getl(off + len, MB_DONTWAIT, MT_DATA, M_PKTHDR, NULL);
1458         if (m == NULL) {
1459                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1460                 ifp->if_ierrors++;
1461                 DPRINTF((ifp, "wi_rx_intr: m_getl failed\n"));
1462                 return;
1463         }
1464
1465         m->m_data += off - sizeof(struct ieee80211_frame);
1466         memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
1467         wi_read_bap(sc, fid, sizeof(frmhdr),
1468             m->m_data + sizeof(struct ieee80211_frame), len);
1469         m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
1470         m->m_pkthdr.rcvif = ifp;
1471
1472         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1473
1474         wh = mtod(m, struct ieee80211_frame *);
1475         if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1476                 /*
1477                  * WEP is decrypted by hardware and the IV
1478                  * is stripped.  Clear WEP bit so we don't
1479                  * try to process it in ieee80211_input.
1480                  * XXX fix for TKIP, et. al.
1481                  */
1482                 wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
1483         }
1484
1485         if (sc->sc_drvbpf) {
1486                 /* XXX replace divide by table */
1487                 sc->sc_rx_th.wr_rate = frmhdr.wi_rx_rate / 5;
1488                 sc->sc_rx_th.wr_antsignal = frmhdr.wi_rx_signal;
1489                 sc->sc_rx_th.wr_antnoise = frmhdr.wi_rx_silence;
1490                 sc->sc_rx_th.wr_flags = 0;
1491                 if (frmhdr.wi_status & WI_STAT_PCF)
1492                         sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_CFP;
1493                 bpf_ptap(sc->sc_drvbpf, m, &sc->sc_rx_th, sc->sc_rx_th_len);
1494         }
1495
1496         /* synchronize driver's BSSID with firmware's BSSID */
1497         dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
1498         if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
1499                 wi_sync_bssid(sc, wh->i_addr3);
1500
1501         /*
1502          * Locate the node for sender, track state, and
1503          * then pass this node (referenced) up to the 802.11
1504          * layer for its use.
1505          */
1506         ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *) wh);
1507         /*
1508          * Send frame up for processing.
1509          */
1510         ieee80211_input(ic, m, ni, rssi, rstamp);
1511         /*
1512          * The frame may have caused the node to be marked for
1513          * reclamation (e.g. in response to a DEAUTH message)
1514          * so use free_node here instead of unref_node.
1515          */
1516         ieee80211_free_node(ni);
1517 }
1518
1519 static void
1520 wi_tx_ex_intr(struct wi_softc *sc)
1521 {
1522         struct ieee80211com *ic = &sc->sc_ic;
1523         struct ifnet *ifp = &ic->ic_if;
1524         struct wi_frame frmhdr;
1525         int fid;
1526
1527         fid = CSR_READ_2(sc, WI_TX_CMP_FID);
1528         /* Read in the frame header */
1529         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
1530                 u_int16_t status = le16toh(frmhdr.wi_status);
1531
1532                 /*
1533                  * Spontaneous station disconnects appear as xmit
1534                  * errors.  Don't announce them and/or count them
1535                  * as an output error.
1536                  */
1537                 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
1538                         if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
1539                                 if_printf(ifp, "tx failed");
1540                                 if (status & WI_TXSTAT_RET_ERR)
1541                                         printf(", retry limit exceeded");
1542                                 if (status & WI_TXSTAT_AGED_ERR)
1543                                         printf(", max transmit lifetime exceeded");
1544                                 if (status & WI_TXSTAT_DISCONNECT)
1545                                         printf(", port disconnected");
1546                                 if (status & WI_TXSTAT_FORM_ERR)
1547                                         printf(", invalid format (data len %u src %6D)",
1548                                                 le16toh(frmhdr.wi_dat_len),
1549                                                 frmhdr.wi_ehdr.ether_shost, ":");
1550                                 if (status & ~0xf)
1551                                         printf(", status=0x%x", status);
1552                                 printf("\n");
1553                         }
1554                         ifp->if_oerrors++;
1555                 } else {
1556                         DPRINTF((ifp, "port disconnected\n"));
1557                         ifp->if_collisions++;   /* XXX */
1558                 }
1559         } else
1560                 DPRINTF((ifp, "wi_tx_ex_intr: read fid %x failed\n", fid));
1561         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
1562 }
1563
1564 static void
1565 wi_tx_intr(struct wi_softc *sc)
1566 {
1567         struct ieee80211com *ic = &sc->sc_ic;
1568         struct ifnet *ifp = &ic->ic_if;
1569         int fid, cur;
1570
1571         if (sc->wi_gone)
1572                 return;
1573
1574         fid = CSR_READ_2(sc, WI_ALLOC_FID);
1575         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1576
1577         cur = sc->sc_txcur;
1578         if (sc->sc_txd[cur].d_fid != fid) {
1579                 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n",
1580                     fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
1581                 return;
1582         }
1583         sc->sc_tx_timer = 0;
1584         sc->sc_txd[cur].d_len = 0;
1585         sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
1586         if (sc->sc_txd[cur].d_len == 0)
1587                 ifp->if_flags &= ~IFF_OACTIVE;
1588         else {
1589                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
1590                     0, 0)) {
1591                         if_printf(ifp, "xmit failed\n");
1592                         sc->sc_txd[cur].d_len = 0;
1593                 } else {
1594                         sc->sc_tx_timer = 5;
1595                         ifp->if_timer = 1;
1596                 }
1597         }
1598 }
1599
1600 static void
1601 wi_info_intr(struct wi_softc *sc)
1602 {
1603         struct ieee80211com *ic = &sc->sc_ic;
1604         struct ifnet *ifp = &ic->ic_if;
1605         int i, fid, len, off;
1606         u_int16_t ltbuf[2];
1607         u_int16_t stat;
1608         u_int32_t *ptr;
1609
1610         fid = CSR_READ_2(sc, WI_INFO_FID);
1611         wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
1612
1613         switch (le16toh(ltbuf[1])) {
1614
1615         case WI_INFO_LINK_STAT:
1616                 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
1617                 DPRINTF((ifp, "wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
1618                 switch (le16toh(stat)) {
1619                 case WI_INFO_LINK_STAT_CONNECTED:
1620                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1621                         if (ic->ic_state == IEEE80211_S_RUN &&
1622                             ic->ic_opmode != IEEE80211_M_IBSS)
1623                                 break;
1624                         /* FALLTHROUGH */
1625                 case WI_INFO_LINK_STAT_AP_CHG:
1626                         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1627                         break;
1628                 case WI_INFO_LINK_STAT_AP_INR:
1629                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1630                         break;
1631                 case WI_INFO_LINK_STAT_AP_OOR:
1632                         if (sc->sc_firmware_type == WI_SYMBOL &&
1633                             sc->sc_scan_timer > 0) {
1634                                 if (wi_cmd(sc, WI_CMD_INQUIRE,
1635                                     WI_INFO_HOST_SCAN_RESULTS, 0, 0) != 0)
1636                                         sc->sc_scan_timer = 0;
1637                                 break;
1638                         }
1639                         if (ic->ic_opmode == IEEE80211_M_STA)
1640                                 sc->sc_flags |= WI_FLAGS_OUTRANGE;
1641                         break;
1642                 case WI_INFO_LINK_STAT_DISCONNECTED:
1643                 case WI_INFO_LINK_STAT_ASSOC_FAILED:
1644                         if (ic->ic_opmode == IEEE80211_M_STA)
1645                                 ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
1646                         break;
1647                 }
1648                 break;
1649
1650         case WI_INFO_COUNTERS:
1651                 /* some card versions have a larger stats structure */
1652                 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
1653                 ptr = (u_int32_t *)&sc->sc_stats;
1654                 off = sizeof(ltbuf);
1655                 for (i = 0; i < len; i++, off += 2, ptr++) {
1656                         wi_read_bap(sc, fid, off, &stat, sizeof(stat));
1657 #ifdef WI_HERMES_STATS_WAR
1658                         if (stat & 0xf000)
1659                                 stat = ~stat;
1660 #endif
1661                         *ptr += stat;
1662                 }
1663                 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries +
1664                     sc->sc_stats.wi_tx_multi_retries +
1665                     sc->sc_stats.wi_tx_retry_limit;
1666                 break;
1667
1668         case WI_INFO_SCAN_RESULTS:
1669         case WI_INFO_HOST_SCAN_RESULTS:
1670                 wi_scan_result(sc, fid, le16toh(ltbuf[0]));
1671                 break;
1672
1673         default:
1674                 DPRINTF((ifp, "wi_info_intr: got fid %x type %x len %d\n", fid,
1675                     le16toh(ltbuf[1]), le16toh(ltbuf[0])));
1676                 break;
1677         }
1678         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
1679 }
1680
1681 static int
1682 wi_write_multi(struct wi_softc *sc)
1683 {
1684         struct ifnet *ifp = &sc->sc_ic.ic_if;
1685         int n;
1686         struct ifmultiaddr *ifma;
1687         struct wi_mcast mlist;
1688
1689         if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1690 allmulti:
1691                 memset(&mlist, 0, sizeof(mlist));
1692                 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1693                     sizeof(mlist));
1694         }
1695
1696         n = 0;
1697         LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1698                 if (ifma->ifma_addr->sa_family != AF_LINK)
1699                         continue;
1700                 if (n >= 16)
1701                         goto allmulti;
1702                 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
1703                     (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
1704                 n++;
1705         }
1706         return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1707             IEEE80211_ADDR_LEN * n);
1708 }
1709
1710 static void
1711 wi_read_nicid(struct wi_softc *sc)
1712 {
1713         struct wi_card_ident *id;
1714         char *p;
1715         int len;
1716         u_int16_t ver[4];
1717
1718         /* getting chip identity */
1719         memset(ver, 0, sizeof(ver));
1720         len = sizeof(ver);
1721         wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
1722         if_printf(&sc->sc_ic.ic_if, "using ");
1723
1724         sc->sc_firmware_type = WI_NOTYPE;
1725         for (id = wi_card_ident; id->card_name != NULL; id++) {
1726                 if (le16toh(ver[0]) == id->card_id) {
1727                         printf("%s", id->card_name);
1728                         sc->sc_firmware_type = id->firm_type;
1729                         break;
1730                 }
1731         }
1732         if (sc->sc_firmware_type == WI_NOTYPE) {
1733                 if (le16toh(ver[0]) & 0x8000) {
1734                         printf("Unknown PRISM2 chip");
1735                         sc->sc_firmware_type = WI_INTERSIL;
1736                 } else {
1737                         printf("Unknown Lucent chip");
1738                         sc->sc_firmware_type = WI_LUCENT;
1739                 }
1740         }
1741
1742         /* get primary firmware version (Only Prism chips) */
1743         if (sc->sc_firmware_type != WI_LUCENT) {
1744                 memset(ver, 0, sizeof(ver));
1745                 len = sizeof(ver);
1746                 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
1747                 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
1748                     le16toh(ver[3]) * 100 + le16toh(ver[1]);
1749         }
1750
1751         /* get station firmware version */
1752         memset(ver, 0, sizeof(ver));
1753         len = sizeof(ver);
1754         wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
1755         sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
1756             le16toh(ver[3]) * 100 + le16toh(ver[1]);
1757         if (sc->sc_firmware_type == WI_INTERSIL &&
1758             (sc->sc_sta_firmware_ver == 10102 ||
1759              sc->sc_sta_firmware_ver == 20102)) {
1760                 char ident[12];
1761                 memset(ident, 0, sizeof(ident));
1762                 len = sizeof(ident);
1763                 /* value should be the format like "V2.00-11" */
1764                 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
1765                     *(p = (char *)ident) >= 'A' &&
1766                     p[2] == '.' && p[5] == '-' && p[8] == '\0') {
1767                         sc->sc_firmware_type = WI_SYMBOL;
1768                         sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 +
1769                             (p[3] - '0') * 1000 + (p[4] - '0') * 100 +
1770                             (p[6] - '0') * 10 + (p[7] - '0');
1771                 }
1772         }
1773         printf("\n");
1774         if_printf(&sc->sc_ic.ic_if, "%s Firmware: ",
1775              sc->sc_firmware_type == WI_LUCENT ? "Lucent" :
1776             (sc->sc_firmware_type == WI_SYMBOL ? "Symbol" : "Intersil"));
1777         if (sc->sc_firmware_type != WI_LUCENT)  /* XXX */
1778                 printf("Primary (%u.%u.%u), ",
1779                     sc->sc_pri_firmware_ver / 10000,
1780                     (sc->sc_pri_firmware_ver % 10000) / 100,
1781                     sc->sc_pri_firmware_ver % 100);
1782         printf("Station (%u.%u.%u)\n",
1783             sc->sc_sta_firmware_ver / 10000,
1784             (sc->sc_sta_firmware_ver % 10000) / 100,
1785             sc->sc_sta_firmware_ver % 100);
1786 }
1787
1788 static int
1789 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
1790 {
1791         struct wi_ssid ssid;
1792
1793         if (buflen > IEEE80211_NWID_LEN)
1794                 return ENOBUFS;
1795         memset(&ssid, 0, sizeof(ssid));
1796         ssid.wi_len = htole16(buflen);
1797         memcpy(ssid.wi_ssid, buf, buflen);
1798         return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
1799 }
1800
1801 static int
1802 wi_get_cfg(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1803 {
1804         struct wi_softc *sc = ifp->if_softc;
1805         struct ieee80211com *ic = &sc->sc_ic;
1806         struct ifreq *ifr = (struct ifreq *)data;
1807         struct wi_req wreq;
1808         struct wi_scan_res *res;
1809         size_t reslen;
1810         int len, n, error, mif, val, off, i;
1811
1812         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1813         if (error)
1814                 return error;
1815         len = (wreq.wi_len - 1) * 2;
1816         if (len < sizeof(u_int16_t))
1817                 return ENOSPC;
1818         if (len > sizeof(wreq.wi_val))
1819                 len = sizeof(wreq.wi_val);
1820
1821         switch (wreq.wi_type) {
1822
1823         case WI_RID_IFACE_STATS:
1824                 memcpy(wreq.wi_val, &sc->sc_stats, sizeof(sc->sc_stats));
1825                 if (len < sizeof(sc->sc_stats))
1826                         error = ENOSPC;
1827                 else
1828                         len = sizeof(sc->sc_stats);
1829                 break;
1830
1831         case WI_RID_ENCRYPTION:
1832         case WI_RID_TX_CRYPT_KEY:
1833         case WI_RID_DEFLT_CRYPT_KEYS:
1834         case WI_RID_TX_RATE:
1835                 return ieee80211_cfgget(ic, cmd, data, cr);
1836
1837         case WI_RID_MICROWAVE_OVEN:
1838                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_MOR)) {
1839                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1840                             &len);
1841                         break;
1842                 }
1843                 wreq.wi_val[0] = htole16(sc->sc_microwave_oven);
1844                 len = sizeof(u_int16_t);
1845                 break;
1846
1847         case WI_RID_DBM_ADJUST:
1848                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_DBMADJUST)) {
1849                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1850                             &len);
1851                         break;
1852                 }
1853                 wreq.wi_val[0] = htole16(sc->sc_dbm_offset);
1854                 len = sizeof(u_int16_t);
1855                 break;
1856
1857         case WI_RID_ROAMING_MODE:
1858                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_ROAMING)) {
1859                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1860                             &len);
1861                         break;
1862                 }
1863                 wreq.wi_val[0] = htole16(sc->sc_roaming_mode);
1864                 len = sizeof(u_int16_t);
1865                 break;
1866
1867         case WI_RID_SYSTEM_SCALE:
1868                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)) {
1869                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1870                             &len);
1871                         break;
1872                 }
1873                 wreq.wi_val[0] = htole16(sc->sc_system_scale);
1874                 len = sizeof(u_int16_t);
1875                 break;
1876
1877         case WI_RID_FRAG_THRESH:
1878                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)) {
1879                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1880                             &len);
1881                         break;
1882                 }
1883                 wreq.wi_val[0] = htole16(ic->ic_fragthreshold);
1884                 len = sizeof(u_int16_t);
1885                 break;
1886
1887         case WI_RID_READ_APS:
1888                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1889                         return ieee80211_cfgget(ic, cmd, data, cr);
1890                 if (sc->sc_scan_timer > 0) {
1891                         error = EINPROGRESS;
1892                         break;
1893                 }
1894                 n = sc->sc_naps;
1895                 if (len < sizeof(n)) {
1896                         error = ENOSPC;
1897                         break;
1898                 }
1899                 if (len < sizeof(n) + sizeof(struct wi_apinfo) * n)
1900                         n = (len - sizeof(n)) / sizeof(struct wi_apinfo);
1901                 len = sizeof(n) + sizeof(struct wi_apinfo) * n;
1902                 memcpy(wreq.wi_val, &n, sizeof(n));
1903                 memcpy((caddr_t)wreq.wi_val + sizeof(n), sc->sc_aps,
1904                     sizeof(struct wi_apinfo) * n);
1905                 break;
1906
1907         case WI_RID_PRISM2:
1908                 wreq.wi_val[0] = sc->sc_firmware_type != WI_LUCENT;
1909                 len = sizeof(u_int16_t);
1910                 break;
1911
1912         case WI_RID_MIF:
1913                 mif = wreq.wi_val[0];
1914                 error = wi_cmd(sc, WI_CMD_READMIF, mif, 0, 0);
1915                 val = CSR_READ_2(sc, WI_RESP0);
1916                 wreq.wi_val[0] = val;
1917                 len = sizeof(u_int16_t);
1918                 break;
1919
1920         case WI_RID_ZERO_CACHE:
1921         case WI_RID_PROCFRAME:          /* ignore for compatibility */
1922                 /* XXX ??? */
1923                 break;
1924
1925         case WI_RID_READ_CACHE:
1926                 return ieee80211_cfgget(ic, cmd, data, cr);
1927
1928         case WI_RID_SCAN_RES:           /* compatibility interface */
1929                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1930                         return ieee80211_cfgget(ic, cmd, data, cr);
1931                 if (sc->sc_scan_timer > 0) {
1932                         error = EINPROGRESS;
1933                         break;
1934                 }
1935                 n = sc->sc_naps;
1936                 if (sc->sc_firmware_type == WI_LUCENT) {
1937                         off = 0;
1938                         reslen = WI_WAVELAN_RES_SIZE;
1939                 } else {
1940                         off = sizeof(struct wi_scan_p2_hdr);
1941                         reslen = WI_PRISM2_RES_SIZE;
1942                 }
1943                 if (len < off + reslen * n)
1944                         n = (len - off) / reslen;
1945                 len = off + reslen * n;
1946                 if (off != 0) {
1947                         struct wi_scan_p2_hdr *p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1948                         /*
1949                          * Prepend Prism-specific header.
1950                          */
1951                         if (len < sizeof(struct wi_scan_p2_hdr)) {
1952                                 error = ENOSPC;
1953                                 break;
1954                         }
1955                         p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1956                         p2->wi_rsvd = 0;
1957                         p2->wi_reason = n;      /* XXX */
1958                 }
1959                 for (i = 0; i < n; i++, off += reslen) {
1960                         const struct wi_apinfo *ap = &sc->sc_aps[i];
1961
1962                         res = (struct wi_scan_res *)((char *)wreq.wi_val + off);
1963                         res->wi_chan = ap->channel;
1964                         res->wi_noise = ap->noise;
1965                         res->wi_signal = ap->signal;
1966                         IEEE80211_ADDR_COPY(res->wi_bssid, ap->bssid);
1967                         res->wi_interval = ap->interval;
1968                         res->wi_capinfo = ap->capinfo;
1969                         res->wi_ssid_len = ap->namelen;
1970                         memcpy(res->wi_ssid, ap->name,
1971                                 IEEE80211_NWID_LEN);
1972                         if (sc->sc_firmware_type != WI_LUCENT) {
1973                                 /* XXX not saved from Prism cards */
1974                                 memset(res->wi_srates, 0,
1975                                         sizeof(res->wi_srates));
1976                                 res->wi_rate = ap->rate;
1977                                 res->wi_rsvd = 0;
1978                         }
1979                 }
1980                 break;
1981
1982         default:
1983                 if (sc->sc_enabled) {
1984                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1985                             &len);
1986                         break;
1987                 }
1988                 switch (wreq.wi_type) {
1989                 case WI_RID_MAX_DATALEN:
1990                         wreq.wi_val[0] = htole16(sc->sc_max_datalen);
1991                         len = sizeof(u_int16_t);
1992                         break;
1993                 case WI_RID_RTS_THRESH:
1994                         wreq.wi_val[0] = htole16(ic->ic_rtsthreshold);
1995                         len = sizeof(u_int16_t);
1996                         break;
1997                 case WI_RID_CNFAUTHMODE:
1998                         wreq.wi_val[0] = htole16(sc->sc_cnfauthmode);
1999                         len = sizeof(u_int16_t);
2000                         break;
2001                 case WI_RID_NODENAME:
2002                         if (len < sc->sc_nodelen + sizeof(u_int16_t)) {
2003                                 error = ENOSPC;
2004                                 break;
2005                         }
2006                         len = sc->sc_nodelen + sizeof(u_int16_t);
2007                         wreq.wi_val[0] = htole16((sc->sc_nodelen + 1) / 2);
2008                         memcpy(&wreq.wi_val[1], sc->sc_nodename,
2009                             sc->sc_nodelen);
2010                         break;
2011                 default:
2012                         return ieee80211_cfgget(ic, cmd, data, cr);
2013                 }
2014                 break;
2015         }
2016         if (error)
2017                 return error;
2018         wreq.wi_len = (len + 1) / 2 + 1;
2019         return copyout(&wreq, ifr->ifr_data, (wreq.wi_len + 1) * 2);
2020 }
2021
2022 static int
2023 wi_set_cfg(struct ifnet *ifp, u_long cmd, caddr_t data)
2024 {
2025         struct wi_softc *sc = ifp->if_softc;
2026         struct ieee80211com *ic = &sc->sc_ic;
2027         struct ifreq *ifr = (struct ifreq *)data;
2028         struct wi_req wreq;
2029         struct mbuf *m;
2030         int i, len, error, mif, val;
2031         struct ieee80211_rateset *rs;
2032
2033         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
2034         if (error)
2035                 return error;
2036         len = wreq.wi_len ? (wreq.wi_len - 1) * 2 : 0;
2037         switch (wreq.wi_type) {
2038         case WI_RID_DBM_ADJUST:
2039                 return ENODEV;
2040
2041         case WI_RID_NODENAME:
2042                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2043                     le16toh(wreq.wi_val[0]) > sizeof(sc->sc_nodename)) {
2044                         error = ENOSPC;
2045                         break;
2046                 }
2047                 if (sc->sc_enabled) {
2048                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2049                             len);
2050                         if (error)
2051                                 break;
2052                 }
2053                 sc->sc_nodelen = le16toh(wreq.wi_val[0]) * 2;
2054                 memcpy(sc->sc_nodename, &wreq.wi_val[1], sc->sc_nodelen);
2055                 break;
2056
2057         case WI_RID_MICROWAVE_OVEN:
2058         case WI_RID_ROAMING_MODE:
2059         case WI_RID_SYSTEM_SCALE:
2060         case WI_RID_FRAG_THRESH:
2061                 if (wreq.wi_type == WI_RID_MICROWAVE_OVEN &&
2062                     (sc->sc_flags & WI_FLAGS_HAS_MOR) == 0)
2063                         break;
2064                 if (wreq.wi_type == WI_RID_ROAMING_MODE &&
2065                     (sc->sc_flags & WI_FLAGS_HAS_ROAMING) == 0)
2066                         break;
2067                 if (wreq.wi_type == WI_RID_SYSTEM_SCALE &&
2068                     (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) == 0)
2069                         break;
2070                 if (wreq.wi_type == WI_RID_FRAG_THRESH &&
2071                     (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) == 0)
2072                         break;
2073                 /* FALLTHROUGH */
2074         case WI_RID_RTS_THRESH:
2075         case WI_RID_CNFAUTHMODE:
2076         case WI_RID_MAX_DATALEN:
2077                 if (sc->sc_enabled) {
2078                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2079                             sizeof(u_int16_t));
2080                         if (error)
2081                                 break;
2082                 }
2083                 switch (wreq.wi_type) {
2084                 case WI_RID_FRAG_THRESH:
2085                         ic->ic_fragthreshold = le16toh(wreq.wi_val[0]);
2086                         break;
2087                 case WI_RID_RTS_THRESH:
2088                         ic->ic_rtsthreshold = le16toh(wreq.wi_val[0]);
2089                         break;
2090                 case WI_RID_MICROWAVE_OVEN:
2091                         sc->sc_microwave_oven = le16toh(wreq.wi_val[0]);
2092                         break;
2093                 case WI_RID_ROAMING_MODE:
2094                         sc->sc_roaming_mode = le16toh(wreq.wi_val[0]);
2095                         break;
2096                 case WI_RID_SYSTEM_SCALE:
2097                         sc->sc_system_scale = le16toh(wreq.wi_val[0]);
2098                         break;
2099                 case WI_RID_CNFAUTHMODE:
2100                         sc->sc_cnfauthmode = le16toh(wreq.wi_val[0]);
2101                         break;
2102                 case WI_RID_MAX_DATALEN:
2103                         sc->sc_max_datalen = le16toh(wreq.wi_val[0]);
2104                         break;
2105                 }
2106                 break;
2107
2108         case WI_RID_TX_RATE:
2109                 switch (le16toh(wreq.wi_val[0])) {
2110                 case 3:
2111                         ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE;
2112                         break;
2113                 default:
2114                         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
2115                         for (i = 0; i < rs->rs_nrates; i++) {
2116                                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL)
2117                                     / 2 == le16toh(wreq.wi_val[0]))
2118                                         break;
2119                         }
2120                         if (i == rs->rs_nrates)
2121                                 return EINVAL;
2122                         ic->ic_fixed_rate = i;
2123                 }
2124                 if (sc->sc_enabled)
2125                         error = wi_write_txrate(sc);
2126                 break;
2127
2128         case WI_RID_SCAN_APS:
2129                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2130                         error = wi_scan_ap(sc, 0x3fff, 0x000f);
2131                 break;
2132
2133         case WI_RID_SCAN_REQ:           /* compatibility interface */
2134                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2135                         error = wi_scan_ap(sc, wreq.wi_val[0], wreq.wi_val[1]);
2136                 break;
2137
2138         case WI_RID_MGMT_XMIT:
2139                 if (!sc->sc_enabled) {
2140                         error = ENETDOWN;
2141                         break;
2142                 }
2143                 if (ic->ic_mgtq.ifq_len > 5) {
2144                         error = EAGAIN;
2145                         break;
2146                 }
2147                 /* XXX wi_len looks in u_int8_t, not in u_int16_t */
2148                 m = m_devget((char *)&wreq.wi_val, wreq.wi_len, 0, ifp, NULL);
2149                 if (m == NULL) {
2150                         error = ENOMEM;
2151                         break;
2152                 }
2153                 IF_ENQUEUE(&ic->ic_mgtq, m);
2154                 break;
2155
2156         case WI_RID_MIF:
2157                 mif = wreq.wi_val[0];
2158                 val = wreq.wi_val[1];
2159                 error = wi_cmd(sc, WI_CMD_WRITEMIF, mif, val, 0);
2160                 break;
2161
2162         case WI_RID_PROCFRAME:          /* ignore for compatibility */
2163                 break;
2164
2165         case WI_RID_OWN_SSID:
2166                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2167                     le16toh(wreq.wi_val[0]) > IEEE80211_NWID_LEN) {
2168                         error = ENOSPC;
2169                         break;
2170                 }
2171                 memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
2172                 ic->ic_des_esslen = le16toh(wreq.wi_val[0]) * 2;
2173                 memcpy(ic->ic_des_essid, &wreq.wi_val[1], ic->ic_des_esslen);
2174                 error = ENETRESET;
2175                 break;
2176
2177         default:
2178                 if (sc->sc_enabled) {
2179                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2180                             len);
2181                         if (error)
2182                                 break;
2183                 }
2184                 error = ieee80211_cfgset(ic, cmd, data);
2185                 break;
2186         }
2187         return error;
2188 }
2189
2190 static int
2191 wi_write_txrate(struct wi_softc *sc)
2192 {
2193         struct ieee80211com *ic = &sc->sc_ic;
2194         int i;
2195         u_int16_t rate;
2196
2197         if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE)
2198                 rate = 0;       /* auto */
2199         else
2200                 rate = (ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ic->ic_fixed_rate] &
2201                     IEEE80211_RATE_VAL) / 2;
2202
2203         /* rate: 0, 1, 2, 5, 11 */
2204
2205         switch (sc->sc_firmware_type) {
2206         case WI_LUCENT:
2207                 switch (rate) {
2208                 case 0:                 /* auto == 11mbps auto */
2209                         rate = 3;
2210                         break;
2211                 /* case 1, 2 map to 1, 2*/
2212                 case 5:                 /* 5.5Mbps -> 4 */
2213                         rate = 4;
2214                         break;
2215                 case 11:                /* 11mbps -> 5 */
2216                         rate = 5;
2217                         break;
2218                 default:
2219                         break;
2220                 }
2221                 break;
2222         default:
2223                 /* Choose a bit according to this table.
2224                  *
2225                  * bit | data rate
2226                  * ----+-------------------
2227                  * 0   | 1Mbps
2228                  * 1   | 2Mbps
2229                  * 2   | 5.5Mbps
2230                  * 3   | 11Mbps
2231                  */
2232                 for (i = 8; i > 0; i >>= 1) {
2233                         if (rate >= i)
2234                                 break;
2235                 }
2236                 if (i == 0)
2237                         rate = 0xf;     /* auto */
2238                 else
2239                         rate = i;
2240                 break;
2241         }
2242         return wi_write_val(sc, WI_RID_TX_RATE, rate);
2243 }
2244
2245 static int
2246 wi_key_alloc(struct ieee80211com *ic, const struct ieee80211_key *k,
2247         ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
2248 {
2249         struct wi_softc *sc = ic->ic_ifp->if_softc;
2250
2251         /*
2252          * When doing host encryption of outbound frames fail requests
2253          * for keys that are not marked w/ the SWCRYPT flag so the
2254          * net80211 layer falls back to s/w crypto.  Note that we also
2255          * fixup existing keys below to handle mode changes.
2256          */
2257         if ((sc->sc_encryption & HOST_ENCRYPT) &&
2258             (k->wk_flags & IEEE80211_KEY_SWCRYPT) == 0)
2259                 return 0;
2260         return sc->sc_key_alloc(ic, k, keyix, rxkeyix);
2261 }
2262
2263 static int
2264 wi_write_wep(struct wi_softc *sc)
2265 {
2266         struct ieee80211com *ic = &sc->sc_ic;
2267         int error = 0;
2268         int i, keylen;
2269         u_int16_t val;
2270         struct wi_key wkey[IEEE80211_WEP_NKID];
2271
2272         switch (sc->sc_firmware_type) {
2273         case WI_LUCENT:
2274                 val = (ic->ic_flags & IEEE80211_F_PRIVACY) ? 1 : 0;
2275                 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
2276                 if (error)
2277                         break;
2278                 if (!(ic->ic_flags & IEEE80211_F_PRIVACY))
2279                         break;
2280                 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, ic->ic_def_txkey);
2281                 if (error)
2282                         break;
2283                 memset(wkey, 0, sizeof(wkey));
2284                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2285                         keylen = ic->ic_nw_keys[i].wk_keylen;
2286                         wkey[i].wi_keylen = htole16(keylen);
2287                         memcpy(wkey[i].wi_keydat, ic->ic_nw_keys[i].wk_key,
2288                             keylen);
2289                 }
2290                 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
2291                     wkey, sizeof(wkey));
2292                 sc->sc_encryption = 0;
2293                 break;
2294
2295         case WI_INTERSIL:
2296         case WI_SYMBOL:
2297                 if (ic->ic_flags & IEEE80211_F_PRIVACY) {
2298                         /*
2299                          * ONLY HWB3163 EVAL-CARD Firmware version
2300                          * less than 0.8 variant2
2301                          *
2302                          *   If promiscuous mode disable, Prism2 chip
2303                          *  does not work with WEP .
2304                          * It is under investigation for details.
2305                          * (ichiro@netbsd.org)
2306                          */
2307                         if (sc->sc_firmware_type == WI_INTERSIL &&
2308                             sc->sc_sta_firmware_ver < 802 ) {
2309                                 /* firm ver < 0.8 variant 2 */
2310                                 wi_write_val(sc, WI_RID_PROMISC, 1);
2311                         }
2312                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2313                             sc->sc_cnfauthmode);
2314                         /* XXX should honor IEEE80211_F_DROPUNENC */
2315                         val = PRIVACY_INVOKED | EXCLUDE_UNENCRYPTED;
2316                         /*
2317                          * Encryption firmware has a bug for HostAP mode.
2318                          */
2319                         if (sc->sc_firmware_type == WI_INTERSIL &&
2320                             ic->ic_opmode == IEEE80211_M_HOSTAP)
2321                                 val |= HOST_ENCRYPT;
2322                 } else {
2323                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2324                             IEEE80211_AUTH_OPEN);
2325                         val = HOST_ENCRYPT | HOST_DECRYPT;
2326                 }
2327                 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
2328                 if (error)
2329                         break;
2330                 sc->sc_encryption = val;
2331                 if ((val & PRIVACY_INVOKED) == 0)
2332                         break;
2333                 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY,
2334                     ic->ic_def_txkey);
2335                 if (error)
2336                         break;
2337                 if (val & HOST_DECRYPT)
2338                         break;
2339                 /*
2340                  * It seems that the firmware accept 104bit key only if
2341                  * all the keys have 104bit length.  We get the length of
2342                  * the transmit key and use it for all other keys.
2343                  * Perhaps we should use software WEP for such situation.
2344                  */
2345                 if (ic->ic_def_txkey != IEEE80211_KEYIX_NONE)
2346                         keylen = ic->ic_nw_keys[ic->ic_def_txkey].wk_keylen;
2347                 else    /* XXX should not hapen */
2348                         keylen = IEEE80211_WEP_KEYLEN;
2349                 if (keylen > IEEE80211_WEP_KEYLEN)
2350                         keylen = 13;    /* 104bit keys */
2351                 else
2352                         keylen = IEEE80211_WEP_KEYLEN;
2353                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2354                         error = wi_write_rid(sc, WI_RID_P2_CRYPT_KEY0 + i,
2355                             ic->ic_nw_keys[i].wk_key, keylen);
2356                         if (error)
2357                                 break;
2358                 }
2359                 break;
2360         }
2361         /*
2362          * XXX horrible hack; insure pre-existing keys are
2363          * setup properly to do s/w crypto.
2364          */
2365         for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2366                 struct ieee80211_key *k = &ic->ic_nw_keys[i];
2367                 if (k->wk_flags & IEEE80211_KEY_XMIT) {
2368                         if (sc->sc_encryption & HOST_ENCRYPT)
2369                                 k->wk_flags |= IEEE80211_KEY_SWCRYPT;
2370                         else
2371                                 k->wk_flags &= ~IEEE80211_KEY_SWCRYPT;
2372                 }
2373         }
2374         return error;
2375 }
2376
2377 static int
2378 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
2379 {
2380         int                     i, s = 0;
2381
2382         if (sc->wi_gone)
2383                 return (ENODEV);
2384
2385         /* wait for the busy bit to clear */
2386         for (i = sc->wi_cmd_count; i > 0; i--) {        /* 500ms */
2387                 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
2388                         break;
2389                 DELAY(1*1000);  /* 1ms */
2390         }
2391         if (i == 0) {
2392                 if_printf(&sc->sc_ic.ic_if, "wi_cmd: busy bit won't clear.\n" );
2393                 sc->wi_gone = 1;
2394                 return(ETIMEDOUT);
2395         }
2396
2397         CSR_WRITE_2(sc, WI_PARAM0, val0);
2398         CSR_WRITE_2(sc, WI_PARAM1, val1);
2399         CSR_WRITE_2(sc, WI_PARAM2, val2);
2400         CSR_WRITE_2(sc, WI_COMMAND, cmd);
2401
2402         if (cmd == WI_CMD_INI) {
2403                 /* XXX: should sleep here. */
2404                 DELAY(100*1000);                /* 100ms delay for init */
2405         }
2406         for (i = 0; i < WI_TIMEOUT; i++) {
2407                 /*
2408                  * Wait for 'command complete' bit to be
2409                  * set in the event status register.
2410                  */
2411                 s = CSR_READ_2(sc, WI_EVENT_STAT);
2412                 if (s & WI_EV_CMD) {
2413                         /* Ack the event and read result code. */
2414                         s = CSR_READ_2(sc, WI_STATUS);
2415                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
2416                         if (s & WI_STAT_CMD_RESULT) {
2417                                 return(EIO);
2418                         }
2419                         break;
2420                 }
2421                 DELAY(WI_DELAY);
2422         }
2423
2424         if (i == WI_TIMEOUT) {
2425                 if_printf(&sc->sc_ic.ic_if,
2426                     "timeout in wi_cmd 0x%04x; event status 0x%04x\n", cmd, s);
2427                 if (s == 0xffff)
2428                         sc->wi_gone = 1;
2429                 return(ETIMEDOUT);
2430         }
2431         return (0);
2432 }
2433
2434 static int
2435 wi_seek_bap(struct wi_softc *sc, int id, int off)
2436 {
2437         int i, status;
2438
2439         CSR_WRITE_2(sc, WI_SEL0, id);
2440         CSR_WRITE_2(sc, WI_OFF0, off);
2441
2442         for (i = 0; ; i++) {
2443                 status = CSR_READ_2(sc, WI_OFF0);
2444                 if ((status & WI_OFF_BUSY) == 0)
2445                         break;
2446                 if (i == WI_TIMEOUT) {
2447                         if_printf(&sc->sc_ic.ic_if,
2448                                   "timeout in wi_seek to %x/%x\n", id, off);
2449                         sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2450                         if (status == 0xffff)
2451                                 sc->wi_gone = 1;
2452                         return ETIMEDOUT;
2453                 }
2454                 DELAY(1);
2455         }
2456         if (status & WI_OFF_ERR) {
2457                 if_printf(&sc->sc_ic.ic_if, "failed in wi_seek to %x/%x\n",
2458                           id, off);
2459                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2460                 return EIO;
2461         }
2462         sc->sc_bap_id = id;
2463         sc->sc_bap_off = off;
2464         return 0;
2465 }
2466
2467 static int
2468 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2469 {
2470         u_int16_t *ptr;
2471         int i, error, cnt;
2472
2473         if (buflen == 0)
2474                 return 0;
2475         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2476                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2477                         return error;
2478         }
2479         cnt = (buflen + 1) / 2;
2480         ptr = (u_int16_t *)buf;
2481         for (i = 0; i < cnt; i++)
2482                 *ptr++ = CSR_READ_2(sc, WI_DATA0);
2483         sc->sc_bap_off += cnt * 2;
2484         return 0;
2485 }
2486
2487 static int
2488 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2489 {
2490         u_int16_t *ptr;
2491         int i, error, cnt;
2492
2493         if (buflen == 0)
2494                 return 0;
2495
2496 #ifdef WI_HERMES_AUTOINC_WAR
2497   again:
2498 #endif
2499         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2500                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2501                         return error;
2502         }
2503         cnt = (buflen + 1) / 2;
2504         ptr = (u_int16_t *)buf;
2505         for (i = 0; i < cnt; i++)
2506                 CSR_WRITE_2(sc, WI_DATA0, ptr[i]);
2507         sc->sc_bap_off += cnt * 2;
2508
2509 #ifdef WI_HERMES_AUTOINC_WAR
2510         /*
2511          * According to the comments in the HCF Light code, there is a bug
2512          * in the Hermes (or possibly in certain Hermes firmware revisions)
2513          * where the chip's internal autoincrement counter gets thrown off
2514          * during data writes:  the autoincrement is missed, causing one
2515          * data word to be overwritten and subsequent words to be written to
2516          * the wrong memory locations. The end result is that we could end
2517          * up transmitting bogus frames without realizing it. The workaround
2518          * for this is to write a couple of extra guard words after the end
2519          * of the transfer, then attempt to read then back. If we fail to
2520          * locate the guard words where we expect them, we preform the
2521          * transfer over again.
2522          */
2523         if ((sc->sc_flags & WI_FLAGS_BUG_AUTOINC) && (id & 0xf000) == 0) {
2524                 CSR_WRITE_2(sc, WI_DATA0, 0x1234);
2525                 CSR_WRITE_2(sc, WI_DATA0, 0x5678);
2526                 wi_seek_bap(sc, id, sc->sc_bap_off);
2527                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2528                 if (CSR_READ_2(sc, WI_DATA0) != 0x1234 ||
2529                     CSR_READ_2(sc, WI_DATA0) != 0x5678) {
2530                         if_printf(&sc->sc_ic.ic_if,
2531                                   "detect auto increment bug, try again\n");
2532                         goto again;
2533                 }
2534         }
2535 #endif
2536         return 0;
2537 }
2538
2539 static int
2540 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
2541 {
2542         int error, len;
2543         struct mbuf *m;
2544
2545         for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
2546                 if (m->m_len == 0)
2547                         continue;
2548
2549                 len = min(m->m_len, totlen);
2550
2551                 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
2552                         m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
2553                         return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
2554                             totlen);
2555                 }
2556
2557                 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
2558                         return error;
2559
2560                 off += m->m_len;
2561                 totlen -= len;
2562         }
2563         return 0;
2564 }
2565
2566 static int
2567 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
2568 {
2569         int i;
2570
2571         if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
2572                 if_printf(&sc->sc_ic.ic_if,
2573                           "failed to allocate %d bytes on NIC\n", len);
2574                 return ENOMEM;
2575         }
2576
2577         for (i = 0; i < WI_TIMEOUT; i++) {
2578                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
2579                         break;
2580                 DELAY(1);
2581         }
2582         if (i == WI_TIMEOUT) {
2583                 if_printf(&sc->sc_ic.ic_if, "timeout in alloc\n");
2584                 return ETIMEDOUT;
2585         }
2586         *idp = CSR_READ_2(sc, WI_ALLOC_FID);
2587         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
2588         return 0;
2589 }
2590
2591 static int
2592 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
2593 {
2594         int error, len;
2595         u_int16_t ltbuf[2];
2596
2597         /* Tell the NIC to enter record read mode. */
2598         error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
2599         if (error)
2600                 return error;
2601
2602         error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2603         if (error)
2604                 return error;
2605
2606         if (le16toh(ltbuf[1]) != rid) {
2607                 if_printf(&sc->sc_ic.ic_if,
2608                           "record read mismatch, rid=%x, got=%x\n",
2609                           rid, le16toh(ltbuf[1]));
2610                 return EIO;
2611         }
2612         len = (le16toh(ltbuf[0]) - 1) * 2;       /* already got rid */
2613         if (*buflenp < len) {
2614                 if_printf(&sc->sc_ic.ic_if, "record buffer is too small, "
2615                           "rid=%x, size=%d, len=%d\n", rid, *buflenp, len);
2616                 return ENOSPC;
2617         }
2618         *buflenp = len;
2619         return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
2620 }
2621
2622 static int
2623 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen)
2624 {
2625         int error;
2626         u_int16_t ltbuf[2];
2627
2628         ltbuf[0] = htole16((buflen + 1) / 2 + 1);        /* includes rid */
2629         ltbuf[1] = htole16(rid);
2630
2631         error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2632         if (error)
2633                 return error;
2634         error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
2635         if (error)
2636                 return error;
2637
2638         return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
2639 }
2640
2641 static int
2642 wi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
2643 {
2644         struct ifnet *ifp = &ic->ic_if;
2645         struct wi_softc *sc = ifp->if_softc;
2646         struct ieee80211_node *ni = ic->ic_bss;
2647         int buflen;
2648         u_int16_t val;
2649         struct wi_ssid ssid;
2650         u_int8_t old_bssid[IEEE80211_ADDR_LEN];
2651
2652         DPRINTF((ifp, "%s: %s -> %s\n", __func__,
2653                 ieee80211_state_name[ic->ic_state],
2654                 ieee80211_state_name[nstate]));
2655
2656         /*
2657          * Internal to the driver the INIT and RUN states are used
2658          * so bypass the net80211 state machine for other states.
2659          * Beware however that this requires use to net80211 state
2660          * management that otherwise would be handled for us.
2661          */
2662         switch (nstate) {
2663         case IEEE80211_S_INIT:
2664                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2665                 return sc->sc_newstate(ic, nstate, arg);
2666
2667         case IEEE80211_S_RUN:
2668                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2669                 buflen = IEEE80211_ADDR_LEN;
2670                 IEEE80211_ADDR_COPY(old_bssid, ni->ni_bssid);
2671                 wi_read_rid(sc, WI_RID_CURRENT_BSSID, ni->ni_bssid, &buflen);
2672                 IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid);
2673                 buflen = sizeof(val);
2674                 wi_read_rid(sc, WI_RID_CURRENT_CHAN, &val, &buflen);
2675                 /* XXX validate channel */
2676                 ni->ni_chan = &ic->ic_channels[le16toh(val)];
2677                 ic->ic_curchan = ni->ni_chan;
2678                 ic->ic_ibss_chan = ni->ni_chan;
2679
2680                 sc->sc_tx_th.wt_chan_freq = sc->sc_rx_th.wr_chan_freq =
2681                         htole16(ni->ni_chan->ic_freq);
2682                 sc->sc_tx_th.wt_chan_flags = sc->sc_rx_th.wr_chan_flags =
2683                         htole16(ni->ni_chan->ic_flags);
2684
2685                 /*
2686                  * XXX hack; unceremoniously clear
2687                  * IEEE80211_F_DROPUNENC when operating with
2688                  * wep enabled so we don't drop unencoded frames
2689                  * at the 802.11 layer.  This is necessary because
2690                  * we must strip the WEP bit from the 802.11 header
2691                  * before passing frames to ieee80211_input because
2692                  * the card has already stripped the WEP crypto
2693                  * header from the packet.
2694                  */
2695                 if (ic->ic_flags & IEEE80211_F_PRIVACY)
2696                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
2697                 if (ic->ic_opmode != IEEE80211_M_HOSTAP) {
2698                         /* XXX check return value */
2699                         buflen = sizeof(ssid);
2700                         wi_read_rid(sc, WI_RID_CURRENT_SSID, &ssid, &buflen);
2701                         ni->ni_esslen = le16toh(ssid.wi_len);
2702                         if (ni->ni_esslen > IEEE80211_NWID_LEN)
2703                                 ni->ni_esslen = IEEE80211_NWID_LEN;     /*XXX*/
2704                         memcpy(ni->ni_essid, ssid.wi_ssid, ni->ni_esslen);
2705                 }
2706                 return sc->sc_newstate(ic, nstate, arg);
2707
2708         case IEEE80211_S_SCAN:
2709         case IEEE80211_S_AUTH:
2710         case IEEE80211_S_ASSOC:
2711                 break;
2712         }
2713
2714         ic->ic_state = nstate;          /* NB: skip normal ieee80211 handling */
2715         return 0;
2716 }
2717
2718 static int
2719 wi_scan_ap(struct wi_softc *sc, u_int16_t chanmask, u_int16_t txrate)
2720 {
2721         int error = 0;
2722         u_int16_t val[2];
2723
2724         if (!sc->sc_enabled)
2725                 return ENXIO;
2726         switch (sc->sc_firmware_type) {
2727         case WI_LUCENT:
2728                 wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
2729                 break;
2730         case WI_INTERSIL:
2731                 val[0] = htole16(chanmask);     /* channel */
2732                 val[1] = htole16(txrate);       /* tx rate */
2733                 error = wi_write_rid(sc, WI_RID_SCAN_REQ, val, sizeof(val));
2734                 break;
2735         case WI_SYMBOL:
2736                 /*
2737                  * XXX only supported on 3.x ?
2738                  */
2739                 val[0] = BSCAN_BCAST | BSCAN_ONETIME;
2740                 error = wi_write_rid(sc, WI_RID_BCAST_SCAN_REQ,
2741                     val, sizeof(val[0]));
2742                 break;
2743         }
2744         if (error == 0) {
2745                 sc->sc_scan_timer = WI_SCAN_WAIT;
2746                 sc->sc_ic.ic_if.if_timer = 1;
2747                 DPRINTF((&sc->sc_ic.ic_if, "wi_scan_ap: start scanning, "
2748                         "chamask 0x%x txrate 0x%x\n", chanmask, txrate));
2749         }
2750         return error;
2751 }
2752
2753 static void
2754 wi_scan_result(struct wi_softc *sc, int fid, int cnt)
2755 {
2756 #define N(a)    (sizeof (a) / sizeof (a[0]))
2757         int i, naps, off, szbuf;
2758         struct wi_scan_header ws_hdr;   /* Prism2 header */
2759         struct wi_scan_data_p2 ws_dat;  /* Prism2 scantable*/
2760         struct wi_apinfo *ap;
2761
2762         off = sizeof(u_int16_t) * 2;
2763         memset(&ws_hdr, 0, sizeof(ws_hdr));
2764         switch (sc->sc_firmware_type) {
2765         case WI_INTERSIL:
2766                 wi_read_bap(sc, fid, off, &ws_hdr, sizeof(ws_hdr));
2767                 off += sizeof(ws_hdr);
2768                 szbuf = sizeof(struct wi_scan_data_p2);
2769                 break;
2770         case WI_SYMBOL:
2771                 szbuf = sizeof(struct wi_scan_data_p2) + 6;
2772                 break;
2773         case WI_LUCENT:
2774                 szbuf = sizeof(struct wi_scan_data);
2775                 break;
2776         default:
2777                 if_printf(&sc->sc_ic.ic_if,
2778                           "wi_scan_result: unknown firmware type %u\n",
2779                           sc->sc_firmware_type);
2780                 naps = 0;
2781                 goto done;
2782         }
2783         naps = (cnt * 2 + 2 - off) / szbuf;
2784         if (naps > N(sc->sc_aps))
2785                 naps = N(sc->sc_aps);
2786         sc->sc_naps = naps;
2787         /* Read Data */
2788         ap = sc->sc_aps;
2789         memset(&ws_dat, 0, sizeof(ws_dat));
2790         for (i = 0; i < naps; i++, ap++) {
2791                 wi_read_bap(sc, fid, off, &ws_dat,
2792                     (sizeof(ws_dat) < szbuf ? sizeof(ws_dat) : szbuf));
2793                 DPRINTF2((&sc->sc_ic.ic_if,
2794                           "wi_scan_result: #%d: off %d bssid %6D\n",
2795                           i, off, ws_dat.wi_bssid, ":"));
2796                 off += szbuf;
2797                 ap->scanreason = le16toh(ws_hdr.wi_reason);
2798                 memcpy(ap->bssid, ws_dat.wi_bssid, sizeof(ap->bssid));
2799                 ap->channel = le16toh(ws_dat.wi_chid);
2800                 ap->signal  = le16toh(ws_dat.wi_signal);
2801                 ap->noise   = le16toh(ws_dat.wi_noise);
2802                 ap->quality = ap->signal - ap->noise;
2803                 ap->capinfo = le16toh(ws_dat.wi_capinfo);
2804                 ap->interval = le16toh(ws_dat.wi_interval);
2805                 ap->rate    = le16toh(ws_dat.wi_rate);
2806                 ap->namelen = le16toh(ws_dat.wi_namelen);
2807                 if (ap->namelen > sizeof(ap->name))
2808                         ap->namelen = sizeof(ap->name);
2809                 memcpy(ap->name, ws_dat.wi_name, ap->namelen);
2810         }
2811 done:
2812         /* Done scanning */
2813         sc->sc_scan_timer = 0;
2814         DPRINTF((&sc->sc_ic.ic_if, "wi_scan_result: scan complete: ap %d\n",
2815                  naps));
2816 #undef N
2817 }
2818
2819 static void
2820 wi_dump_pkt(struct wi_frame *wh, struct ieee80211_node *ni, int rssi)
2821 {
2822         ieee80211_dump_pkt((u_int8_t *) &wh->wi_whdr, sizeof(wh->wi_whdr),
2823             ni ? ni->ni_rates.rs_rates[ni->ni_txrate] & IEEE80211_RATE_VAL : -1, rssi);
2824         printf(" status 0x%x rx_tstamp1 %u rx_tstamp0 0x%u rx_silence %u\n",
2825                 le16toh(wh->wi_status), le16toh(wh->wi_rx_tstamp1),
2826                 le16toh(wh->wi_rx_tstamp0), wh->wi_rx_silence);
2827         printf(" rx_signal %u rx_rate %u rx_flow %u\n",
2828                 wh->wi_rx_signal, wh->wi_rx_rate, wh->wi_rx_flow);
2829         printf(" tx_rtry %u tx_rate %u tx_ctl 0x%x dat_len %u\n",
2830                 wh->wi_tx_rtry, wh->wi_tx_rate,
2831                 le16toh(wh->wi_tx_ctl), le16toh(wh->wi_dat_len));
2832         printf(" ehdr dst %6D src %6D type 0x%x\n",
2833                 wh->wi_ehdr.ether_dhost, ":", wh->wi_ehdr.ether_shost, ":",
2834                 wh->wi_ehdr.ether_type);
2835 }
2836
2837 int
2838 wi_alloc(device_t dev, int rid)
2839 {
2840         struct wi_softc *sc = device_get_softc(dev);
2841
2842         if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
2843                 sc->iobase_rid = rid;
2844                 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
2845                     &sc->iobase_rid, 0, ~0, (1 << 6),
2846                     rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
2847                 if (!sc->iobase) {
2848                         device_printf(dev, "No I/O space?!\n");
2849                         return (ENXIO);
2850                 }
2851
2852                 sc->wi_io_addr = rman_get_start(sc->iobase);
2853                 sc->wi_btag = rman_get_bustag(sc->iobase);
2854                 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
2855         } else {
2856                 sc->mem_rid = rid;
2857                 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
2858                     &sc->mem_rid, RF_ACTIVE);
2859
2860                 if (!sc->mem) {
2861                         device_printf(dev, "No Mem space on prism2.5?\n");
2862                         return (ENXIO);
2863                 }
2864
2865                 sc->wi_btag = rman_get_bustag(sc->mem);
2866                 sc->wi_bhandle = rman_get_bushandle(sc->mem);
2867         }
2868
2869
2870         sc->irq_rid = 0;
2871         sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
2872             RF_ACTIVE |
2873             ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
2874
2875         if (!sc->irq) {
2876                 wi_free(dev);
2877                 device_printf(dev, "No irq?!\n");
2878                 return (ENXIO);
2879         }
2880
2881         return (0);
2882 }
2883
2884 void
2885 wi_free(device_t dev)
2886 {
2887         struct wi_softc *sc = device_get_softc(dev);
2888
2889         if (sc->iobase != NULL) {
2890                 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
2891                 sc->iobase = NULL;
2892         }
2893         if (sc->irq != NULL) {
2894                 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
2895                 sc->irq = NULL;
2896         }
2897         if (sc->mem != NULL) {
2898                 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
2899                 sc->mem = NULL;
2900         }
2901 }
2902
2903 static int
2904 wi_get_debug(struct wi_softc *sc, struct wi_req *wreq)
2905 {
2906         int error = 0;
2907
2908         wreq->wi_len = 1;
2909
2910         switch (wreq->wi_type) {
2911         case WI_DEBUG_SLEEP:
2912                 wreq->wi_len++;
2913                 wreq->wi_val[0] = sc->wi_debug.wi_sleep;
2914                 break;
2915         case WI_DEBUG_DELAYSUPP:
2916                 wreq->wi_len++;
2917                 wreq->wi_val[0] = sc->wi_debug.wi_delaysupp;
2918                 break;
2919         case WI_DEBUG_TXSUPP:
2920                 wreq->wi_len++;
2921                 wreq->wi_val[0] = sc->wi_debug.wi_txsupp;
2922                 break;
2923         case WI_DEBUG_MONITOR:
2924                 wreq->wi_len++;
2925                 wreq->wi_val[0] = sc->wi_debug.wi_monitor;
2926                 break;
2927         case WI_DEBUG_LEDTEST:
2928                 wreq->wi_len += 3;
2929                 wreq->wi_val[0] = sc->wi_debug.wi_ledtest;
2930                 wreq->wi_val[1] = sc->wi_debug.wi_ledtest_param0;
2931                 wreq->wi_val[2] = sc->wi_debug.wi_ledtest_param1;
2932                 break;
2933         case WI_DEBUG_CONTTX:
2934                 wreq->wi_len += 2;
2935                 wreq->wi_val[0] = sc->wi_debug.wi_conttx;
2936                 wreq->wi_val[1] = sc->wi_debug.wi_conttx_param0;
2937                 break;
2938         case WI_DEBUG_CONTRX:
2939                 wreq->wi_len++;
2940                 wreq->wi_val[0] = sc->wi_debug.wi_contrx;
2941                 break;
2942         case WI_DEBUG_SIGSTATE:
2943                 wreq->wi_len += 2;
2944                 wreq->wi_val[0] = sc->wi_debug.wi_sigstate;
2945                 wreq->wi_val[1] = sc->wi_debug.wi_sigstate_param0;
2946                 break;
2947         case WI_DEBUG_CONFBITS:
2948                 wreq->wi_len += 2;
2949                 wreq->wi_val[0] = sc->wi_debug.wi_confbits;
2950                 wreq->wi_val[1] = sc->wi_debug.wi_confbits_param0;
2951                 break;
2952         default:
2953                 error = EIO;
2954                 break;
2955         }
2956
2957         return (error);
2958 }
2959
2960 static int
2961 wi_set_debug(struct wi_softc *sc, struct wi_req *wreq)
2962 {
2963         int error = 0;
2964         u_int16_t               cmd, param0 = 0, param1 = 0;
2965
2966         switch (wreq->wi_type) {
2967         case WI_DEBUG_RESET:
2968         case WI_DEBUG_INIT:
2969         case WI_DEBUG_CALENABLE:
2970                 break;
2971         case WI_DEBUG_SLEEP:
2972                 sc->wi_debug.wi_sleep = 1;
2973                 break;
2974         case WI_DEBUG_WAKE:
2975                 sc->wi_debug.wi_sleep = 0;
2976                 break;
2977         case WI_DEBUG_CHAN:
2978                 param0 = wreq->wi_val[0];
2979                 break;
2980         case WI_DEBUG_DELAYSUPP:
2981                 sc->wi_debug.wi_delaysupp = 1;
2982                 break;
2983         case WI_DEBUG_TXSUPP:
2984                 sc->wi_debug.wi_txsupp = 1;
2985                 break;
2986         case WI_DEBUG_MONITOR:
2987                 sc->wi_debug.wi_monitor = 1;
2988                 break;
2989         case WI_DEBUG_LEDTEST:
2990                 param0 = wreq->wi_val[0];
2991                 param1 = wreq->wi_val[1];
2992                 sc->wi_debug.wi_ledtest = 1;
2993                 sc->wi_debug.wi_ledtest_param0 = param0;
2994                 sc->wi_debug.wi_ledtest_param1 = param1;
2995                 break;
2996         case WI_DEBUG_CONTTX:
2997                 param0 = wreq->wi_val[0];
2998                 sc->wi_debug.wi_conttx = 1;
2999                 sc->wi_debug.wi_conttx_param0 = param0;
3000                 break;
3001         case WI_DEBUG_STOPTEST:
3002                 sc->wi_debug.wi_delaysupp = 0;
3003                 sc->wi_debug.wi_txsupp = 0;
3004                 sc->wi_debug.wi_monitor = 0;
3005                 sc->wi_debug.wi_ledtest = 0;
3006                 sc->wi_debug.wi_ledtest_param0 = 0;
3007                 sc->wi_debug.wi_ledtest_param1 = 0;
3008                 sc->wi_debug.wi_conttx = 0;
3009                 sc->wi_debug.wi_conttx_param0 = 0;
3010                 sc->wi_debug.wi_contrx = 0;
3011                 sc->wi_debug.wi_sigstate = 0;
3012                 sc->wi_debug.wi_sigstate_param0 = 0;
3013                 break;
3014         case WI_DEBUG_CONTRX:
3015                 sc->wi_debug.wi_contrx = 1;
3016                 break;
3017         case WI_DEBUG_SIGSTATE:
3018                 param0 = wreq->wi_val[0];
3019                 sc->wi_debug.wi_sigstate = 1;
3020                 sc->wi_debug.wi_sigstate_param0 = param0;
3021                 break;
3022         case WI_DEBUG_CONFBITS:
3023                 param0 = wreq->wi_val[0];
3024                 param1 = wreq->wi_val[1];
3025                 sc->wi_debug.wi_confbits = param0;
3026                 sc->wi_debug.wi_confbits_param0 = param1;
3027                 break;
3028         default:
3029                 error = EIO;
3030                 break;
3031         }
3032
3033         if (error)
3034                 return (error);
3035
3036         cmd = WI_CMD_DEBUG | (wreq->wi_type << 8);
3037         error = wi_cmd(sc, cmd, param0, param1, 0);
3038
3039         return (error);
3040 }
3041
3042 /*
3043  * Special routines to download firmware for Symbol CF card.
3044  * XXX: This should be modified generic into any PRISM-2 based card.
3045  */
3046
3047 #define WI_SBCF_PDIADDR         0x3100
3048
3049 /* unaligned load little endian */
3050 #define GETLE32(p)      ((p)[0] | ((p)[1]<<8) | ((p)[2]<<16) | ((p)[3]<<24))
3051 #define GETLE16(p)      ((p)[0] | ((p)[1]<<8))
3052
3053 int
3054 wi_symbol_load_firm(struct wi_softc *sc, const void *primsym, int primlen,
3055     const void *secsym, int seclen)
3056 {
3057         uint8_t ebuf[256];
3058         int i;
3059
3060         /* load primary code and run it */
3061         wi_symbol_set_hcr(sc, WI_HCR_EEHOLD);
3062         if (wi_symbol_write_firm(sc, primsym, primlen, NULL, 0))
3063                 return EIO;
3064         wi_symbol_set_hcr(sc, WI_HCR_RUN);
3065         for (i = 0; ; i++) {
3066                 if (i == 10)
3067                         return ETIMEDOUT;
3068                 tsleep(sc, 0, "wiinit", 1);
3069                 if (CSR_READ_2(sc, WI_CNTL) == WI_CNTL_AUX_ENA_STAT)
3070                         break;
3071                 /* write the magic key value to unlock aux port */
3072                 CSR_WRITE_2(sc, WI_PARAM0, WI_AUX_KEY0);
3073                 CSR_WRITE_2(sc, WI_PARAM1, WI_AUX_KEY1);
3074                 CSR_WRITE_2(sc, WI_PARAM2, WI_AUX_KEY2);
3075                 CSR_WRITE_2(sc, WI_CNTL, WI_CNTL_AUX_ENA_CNTL);
3076         }
3077
3078         /* issue read EEPROM command: XXX copied from wi_cmd() */
3079         CSR_WRITE_2(sc, WI_PARAM0, 0);
3080         CSR_WRITE_2(sc, WI_PARAM1, 0);
3081         CSR_WRITE_2(sc, WI_PARAM2, 0);
3082         CSR_WRITE_2(sc, WI_COMMAND, WI_CMD_READEE);
3083         for (i = 0; i < WI_TIMEOUT; i++) {
3084                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_CMD)
3085                         break;
3086                 DELAY(1);
3087         }
3088         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
3089
3090         CSR_WRITE_2(sc, WI_AUX_PAGE, WI_SBCF_PDIADDR / WI_AUX_PGSZ);
3091         CSR_WRITE_2(sc, WI_AUX_OFFSET, WI_SBCF_PDIADDR % WI_AUX_PGSZ);
3092         CSR_READ_MULTI_STREAM_2(sc, WI_AUX_DATA,
3093             (uint16_t *)ebuf, sizeof(ebuf) / 2);
3094         if (GETLE16(ebuf) > sizeof(ebuf))
3095                 return EIO;
3096         if (wi_symbol_write_firm(sc, secsym, seclen, ebuf + 4, GETLE16(ebuf)))
3097                 return EIO;
3098         return 0;
3099 }
3100
3101 static int
3102 wi_symbol_write_firm(struct wi_softc *sc, const void *buf, int buflen,
3103     const void *ebuf, int ebuflen)
3104 {
3105         const uint8_t *p, *ep, *q, *eq;
3106         char *tp;
3107         uint32_t addr, id, eid;
3108         int i, len, elen, nblk, pdrlen;
3109
3110         /*
3111          * Parse the header of the firmware image.
3112          */
3113         p = buf;
3114         ep = p + buflen;
3115         while (p < ep && *p++ != ' ');  /* FILE: */
3116         while (p < ep && *p++ != ' ');  /* filename */
3117         while (p < ep && *p++ != ' ');  /* type of the firmware */
3118         nblk = strtoul(p, &tp, 10);
3119         p = tp;
3120         pdrlen = strtoul(p + 1, &tp, 10);
3121         p = tp;
3122         while (p < ep && *p++ != 0x1a); /* skip rest of header */
3123
3124         /*
3125          * Block records: address[4], length[2], data[length];
3126          */
3127         for (i = 0; i < nblk; i++) {
3128                 addr = GETLE32(p);      p += 4;
3129                 len  = GETLE16(p);      p += 2;
3130                 CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3131                 CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3132                 CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3133                     (const uint16_t *)p, len / 2);
3134                 p += len;
3135         }
3136
3137         /*
3138          * PDR: id[4], address[4], length[4];
3139          */
3140         for (i = 0; i < pdrlen; ) {
3141                 id   = GETLE32(p);      p += 4; i += 4;
3142                 addr = GETLE32(p);      p += 4; i += 4;
3143                 len  = GETLE32(p);      p += 4; i += 4;
3144                 /* replace PDR entry with the values from EEPROM, if any */
3145                 for (q = ebuf, eq = q + ebuflen; q < eq; q += elen * 2) {
3146                         elen = GETLE16(q);      q += 2;
3147                         eid  = GETLE16(q);      q += 2;
3148                         elen--;         /* elen includes eid */
3149                         if (eid == 0)
3150                                 break;
3151                         if (eid != id)
3152                                 continue;
3153                         CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3154                         CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3155                         CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3156                             (const uint16_t *)q, len / 2);
3157                         break;
3158                 }
3159         }
3160         return 0;
3161 }
3162
3163 static int
3164 wi_symbol_set_hcr(struct wi_softc *sc, int mode)
3165 {
3166         uint16_t hcr;
3167
3168         CSR_WRITE_2(sc, WI_COR, WI_COR_RESET);
3169         tsleep(sc, 0, "wiinit", 1);
3170         hcr = CSR_READ_2(sc, WI_HCR);
3171         hcr = (hcr & WI_HCR_4WIRE) | (mode & ~WI_HCR_4WIRE);
3172         CSR_WRITE_2(sc, WI_HCR, hcr);
3173         tsleep(sc, 0, "wiinit", 1);
3174         CSR_WRITE_2(sc, WI_COR, WI_COR_IOMODE);
3175         tsleep(sc, 0, "wiinit", 1);
3176         return 0;
3177 }