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 1.38 2006/10/25 20:55:59 dillon Exp $
  36  */
  37
  38 /*
  39  * Lucent WaveLAN/IEEE 802.11 PCMCIA driver.
  40  *
  41  * Original FreeBSD driver written by Bill Paul <wpaul@ctr.columbia.edu>
  42  * Electrical Engineering Department
  43  * Columbia University, New York City
  44  */
  45
  46 /*
  47  * The WaveLAN/IEEE adapter is the second generation of the WaveLAN
  48  * from Lucent. Unlike the older cards, the new ones are programmed
  49  * entirely via a firmware-driven controller called the Hermes.
  50  * Unfortunately, Lucent will not release the Hermes programming manual
  51  * without an NDA (if at all). What they do release is an API library
  52  * called the HCF (Hardware Control Functions) which is supposed to
  53  * do the device-specific operations of a device driver for you. The
  54  * publically available version of the HCF library (the 'HCF Light') is
  55  * a) extremely gross, b) lacks certain features, particularly support
  56  * for 802.11 frames, and c) is contaminated by the GNU Public License.
  57  *
  58  * This driver does not use the HCF or HCF Light at all. Instead, it
  59  * programs the Hermes controller directly, using information gleaned
  60  * from the HCF Light code and corresponding documentation.
  61  *
  62  * This driver supports the ISA, PCMCIA and PCI versions of the Lucent
  63  * WaveLan cards (based on the Hermes chipset), as well as the newer
  64  * Prism 2 chipsets with firmware from Intersil and Symbol.
  65  */
  66
  67 #define WI_HERMES_AUTOINC_WAR   /* Work around data write autoinc bug. */
  68 #define WI_HERMES_STATS_WAR     /* Work around stats counter bug. */
  69
  70 #include "opt_polling.h"
  71
  72 #include <sys/param.h>
  73 #include <sys/endian.h>
  74 #include <sys/systm.h>
  75 #include <sys/sockio.h>
  76 #include <sys/mbuf.h>
  77 #include <sys/proc.h>
  78 #include <sys/kernel.h>
  79 #include <sys/socket.h>
  80 #include <sys/module.h>
  81 #include <sys/bus.h>
  82 #include <sys/random.h>
  83 #include <sys/syslog.h>
  84 #include <sys/sysctl.h>
  85 #include <sys/serialize.h>
  86 #include <sys/rman.h>
  87 #include <sys/thread2.h>
  88
  89 #include <machine/atomic.h>
  90
  91 #include <net/if.h>
  92 #include <net/if_arp.h>
  93 #include <net/ethernet.h>
  94 #include <net/if_dl.h>
  95 #include <net/if_media.h>
  96 #include <net/if_types.h>
  97 #include <net/ifq_var.h>
  98
  99 #include <netproto/802_11/ieee80211_var.h>
 100 #include <netproto/802_11/ieee80211_ioctl.h>
 101 #include <netproto/802_11/ieee80211_radiotap.h>
 102 #include <netproto/802_11/if_wavelan_ieee.h>
 103
 104 #include <netinet/in.h>
 105 #include <netinet/in_systm.h>
 106 #include <netinet/in_var.h>
 107 #include <netinet/ip.h>
 108 #include <netinet/if_ether.h>
 109
 110 #include <net/bpf.h>
 111
 112 #include <dev/netif/wi/if_wireg.h>
 113 #include <dev/netif/wi/if_wivar.h>
 114
 115 static void wi_start(struct ifnet *);
 116 static int  wi_reset(struct wi_softc *);
 117 static void wi_watchdog(struct ifnet *);
 118 static int  wi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
 119 static int  wi_media_change(struct ifnet *);
 120 static void wi_media_status(struct ifnet *, struct ifmediareq *);
 121
 122 static void wi_rx_intr(struct wi_softc *);
 123 static void wi_tx_intr(struct wi_softc *);
 124 static void wi_tx_ex_intr(struct wi_softc *);
 125 static void wi_info_intr(struct wi_softc *);
 126
 127 static int  wi_get_cfg(struct ifnet *, u_long, caddr_t, struct ucred *);
 128 static int  wi_set_cfg(struct ifnet *, u_long, caddr_t);
 129 static int  wi_write_txrate(struct wi_softc *);
 130 static int  wi_write_wep(struct wi_softc *);
 131 static int  wi_write_multi(struct wi_softc *);
 132 static int  wi_alloc_fid(struct wi_softc *, int, int *);
 133 static void wi_read_nicid(struct wi_softc *);
 134 static int  wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
 135
 136 static int  wi_cmd(struct wi_softc *, int, int, int, int);
 137 static int  wi_seek_bap(struct wi_softc *, int, int);
 138 static int  wi_read_bap(struct wi_softc *, int, int, void *, int);
 139 static int  wi_write_bap(struct wi_softc *, int, int, void *, int);
 140 static int  wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
 141 static int  wi_read_rid(struct wi_softc *, int, void *, int *);
 142 static int  wi_write_rid(struct wi_softc *, int, void *, int);
 143
 144 static int  wi_key_alloc(struct ieee80211com *, const struct ieee80211_key *,
 145                 ieee80211_keyix *, ieee80211_keyix *);
 146 static int  wi_newstate(struct ieee80211com *, enum ieee80211_state, int);
 147
 148 static int  wi_scan_ap(struct wi_softc *, u_int16_t, u_int16_t);
 149 static void wi_scan_result(struct wi_softc *, int, int);
 150
 151 static void wi_dump_pkt(struct wi_frame *, struct ieee80211_node *, int rssi);
 152
 153 static int wi_get_debug(struct wi_softc *, struct wi_req *);
 154 static int wi_set_debug(struct wi_softc *, struct wi_req *);
 155
 156 /* support to download firmware for symbol CF card */
 157 static int wi_symbol_write_firm(struct wi_softc *, const void *, int,
 158                 const void *, int);
 159 static int wi_symbol_set_hcr(struct wi_softc *, int);
 160 #ifdef DEVICE_POLLING
 161 static void wi_poll(struct ifnet *ifp, enum poll_cmd cmd, int count);
 162 #endif
 163
 164 static __inline int
 165 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val)
 166 {
 167
 168         val = htole16(val);
 169         return wi_write_rid(sc, rid, &val, sizeof(val));
 170 }
 171
 172 SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, "Wireless driver parameters");
 173
 174 static  struct timeval lasttxerror;     /* time of last tx error msg */
 175 static  int curtxeps;                   /* current tx error msgs/sec */
 176 static  int wi_txerate = 0;             /* tx error rate: max msgs/sec */
 177 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate,
 178             0, "max tx error msgs/sec; 0 to disable msgs");
 179
 180 #define WI_DEBUG
 181 #ifdef WI_DEBUG
 182 static  int wi_debug = 0;
 183 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug,
 184             0, "control debugging printfs");
 185
 186 #define DPRINTF(X)      if (wi_debug) if_printf X
 187 #define DPRINTF2(X)     if (wi_debug > 1) if_printf X
 188 #define IFF_DUMPPKTS(_ifp) \
 189         (((_ifp)->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2))
 190 #else
 191 #define DPRINTF(X)
 192 #define DPRINTF2(X)
 193 #define IFF_DUMPPKTS(_ifp)      0
 194 #endif
 195
 196 #define WI_INTRS        (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
 197
 198 struct wi_card_ident wi_card_ident[] = {
 199         /* CARD_ID                      CARD_NAME               FIRM_TYPE */
 200         { WI_NIC_LUCENT_ID,             WI_NIC_LUCENT_STR,      WI_LUCENT },
 201         { WI_NIC_SONY_ID,               WI_NIC_SONY_STR,        WI_LUCENT },
 202         { WI_NIC_LUCENT_EMB_ID,         WI_NIC_LUCENT_EMB_STR,  WI_LUCENT },
 203         { WI_NIC_EVB2_ID,               WI_NIC_EVB2_STR,        WI_INTERSIL },
 204         { WI_NIC_HWB3763_ID,            WI_NIC_HWB3763_STR,     WI_INTERSIL },
 205         { WI_NIC_HWB3163_ID,            WI_NIC_HWB3163_STR,     WI_INTERSIL },
 206         { WI_NIC_HWB3163B_ID,           WI_NIC_HWB3163B_STR,    WI_INTERSIL },
 207         { WI_NIC_EVB3_ID,               WI_NIC_EVB3_STR,        WI_INTERSIL },
 208         { WI_NIC_HWB1153_ID,            WI_NIC_HWB1153_STR,     WI_INTERSIL },
 209         { WI_NIC_P2_SST_ID,             WI_NIC_P2_SST_STR,      WI_INTERSIL },
 210         { WI_NIC_EVB2_SST_ID,           WI_NIC_EVB2_SST_STR,    WI_INTERSIL },
 211         { WI_NIC_3842_EVA_ID,           WI_NIC_3842_EVA_STR,    WI_INTERSIL },
 212         { WI_NIC_3842_PCMCIA_AMD_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 213         { WI_NIC_3842_PCMCIA_SST_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 214         { WI_NIC_3842_PCMCIA_ATL_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 215         { WI_NIC_3842_PCMCIA_ATS_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 216         { WI_NIC_3842_MINI_AMD_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 217         { WI_NIC_3842_MINI_SST_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 218         { WI_NIC_3842_MINI_ATL_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 219         { WI_NIC_3842_MINI_ATS_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 220         { WI_NIC_3842_PCI_AMD_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 221         { WI_NIC_3842_PCI_SST_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 222         { WI_NIC_3842_PCI_ATS_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 223         { WI_NIC_3842_PCI_ATL_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 224         { WI_NIC_P3_PCMCIA_AMD_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 225         { WI_NIC_P3_PCMCIA_SST_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 226         { WI_NIC_P3_PCMCIA_ATL_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 227         { WI_NIC_P3_PCMCIA_ATS_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 228         { WI_NIC_P3_MINI_AMD_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 229         { WI_NIC_P3_MINI_SST_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 230         { WI_NIC_P3_MINI_ATL_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 231         { WI_NIC_P3_MINI_ATS_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 232         { 0,    NULL,   0 },
 233 };
 234
 235 devclass_t wi_devclass;
 236
 237 int
 238 wi_attach(device_t dev)
 239 {
 240         struct wi_softc *sc = device_get_softc(dev);
 241         struct ieee80211com *ic = &sc->sc_ic;
 242         struct ifnet *ifp = &ic->ic_if;
 243         int i, nrates, buflen;
 244         u_int16_t val;
 245         u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE];
 246         struct ieee80211_rateset *rs;
 247         static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = {
 248                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 249         };
 250         int error;
 251
 252         ifp->if_softc = sc;
 253         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 254
 255         sc->sc_firmware_type = WI_NOTYPE;
 256         sc->wi_cmd_count = 500;
 257
 258         /* Reset the NIC. */
 259         error = wi_reset(sc);
 260         if (error)
 261                 goto fail;
 262
 263         /*
 264          * Read the station address.
 265          * And do it twice. I've seen PRISM-based cards that return
 266          * an error when trying to read it the first time, which causes
 267          * the probe to fail.
 268          */
 269         buflen = IEEE80211_ADDR_LEN;
 270         error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 271         if (error != 0) {
 272                 buflen = IEEE80211_ADDR_LEN;
 273                 error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 274         }
 275         if (error) {
 276                 device_printf(dev, "mac read failed %d\n", error);
 277                 goto fail;
 278         }
 279         if (IEEE80211_ADDR_EQ(ic->ic_myaddr, empty_macaddr)) {
 280                 device_printf(dev, "mac read failed (all zeros)\n");
 281                 error = ENXIO;
 282                 goto fail;
 283         }
 284
 285         /* Read NIC identification */
 286         wi_read_nicid(sc);
 287
 288         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 289         ifp->if_ioctl = wi_ioctl;
 290         ifp->if_start = wi_start;
 291         ifp->if_watchdog = wi_watchdog;
 292         ifp->if_init = wi_init;
 293         ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
 294         ifq_set_ready(&ifp->if_snd);
 295 #ifdef DEVICE_POLLING
 296         ifp->if_poll = wi_poll;
 297 #endif
 298         ifp->if_capenable = ifp->if_capabilities;
 299
 300         ic->ic_phytype = IEEE80211_T_DS;
 301         ic->ic_opmode = IEEE80211_M_STA;
 302         ic->ic_caps = IEEE80211_C_PMGT |
 303                       IEEE80211_C_IBSS |
 304                       IEEE80211_C_WEP;
 305         ic->ic_state = IEEE80211_S_INIT;
 306         ic->ic_max_aid = WI_MAX_AID;
 307
 308         /*
 309          * Query the card for available channels and setup the
 310          * channel table.  We assume these are all 11b channels.
 311          */
 312         buflen = sizeof(val);
 313         if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
 314                 val = htole16(0x1fff);  /* assume 1-11 */
 315         KASSERT(val != 0, ("wi_attach: no available channels listed!"));
 316
 317         val <<= 1;                      /* shift for base 1 indices */
 318         for (i = 1; i < 16; i++) {
 319                 if (isset((u_int8_t*)&val, i)) {
 320                         ic->ic_channels[i].ic_freq =
 321                                 ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
 322                         ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B;
 323                 }
 324         }
 325
 326         /*
 327          * Read the default channel from the NIC. This may vary
 328          * depending on the country where the NIC was purchased, so
 329          * we can't hard-code a default and expect it to work for
 330          * everyone.
 331          *
 332          * If no channel is specified, let the 802.11 code select.
 333          */
 334         buflen = sizeof(val);
 335         if (wi_read_rid(sc, WI_RID_OWN_CHNL, &val, &buflen) == 0) {
 336                 val = le16toh(val);
 337                 KASSERT(val < IEEE80211_CHAN_MAX &&
 338                         ic->ic_channels[val].ic_flags != 0,
 339                         ("wi_attach: invalid own channel %u!", val));
 340                 ic->ic_ibss_chan = &ic->ic_channels[val];
 341         } else {
 342                 device_printf(dev,
 343                         "WI_RID_OWN_CHNL failed, using first channel!\n");
 344                 ic->ic_ibss_chan = &ic->ic_channels[0];
 345         }
 346
 347         /*
 348          * Set flags based on firmware version.
 349          */
 350         switch (sc->sc_firmware_type) {
 351         case WI_LUCENT:
 352                 sc->sc_ntxbuf = 1;
 353                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 354 #ifdef WI_HERMES_AUTOINC_WAR
 355                 /* XXX: not confirmed, but never seen for recent firmware */
 356                 if (sc->sc_sta_firmware_ver <  40000) {
 357                         sc->sc_flags |= WI_FLAGS_BUG_AUTOINC;
 358                 }
 359 #endif
 360                 if (sc->sc_sta_firmware_ver >= 60000)
 361                         sc->sc_flags |= WI_FLAGS_HAS_MOR;
 362                 if (sc->sc_sta_firmware_ver >= 60006) {
 363                         ic->ic_caps |= IEEE80211_C_IBSS;
 364                         ic->ic_caps |= IEEE80211_C_MONITOR;
 365                 }
 366                 sc->sc_ibss_port = htole16(1);
 367
 368                 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
 369                 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
 370                 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
 371                 break;
 372
 373         case WI_INTERSIL:
 374                 sc->sc_ntxbuf = WI_NTXBUF;
 375                 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR;
 376                 sc->sc_flags |= WI_FLAGS_HAS_ROAMING;
 377                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 378                 /*
 379                  * Old firmware are slow, so give peace a chance.
 380                  */
 381                 if (sc->sc_sta_firmware_ver < 10000)
 382                         sc->wi_cmd_count = 5000;
 383                 if (sc->sc_sta_firmware_ver > 10101)
 384                         sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
 385                 if (sc->sc_sta_firmware_ver >= 800) {
 386                         ic->ic_caps |= IEEE80211_C_IBSS;
 387                         ic->ic_caps |= IEEE80211_C_MONITOR;
 388                 }
 389                 /*
 390                  * version 0.8.3 and newer are the only ones that are known
 391                  * to currently work.  Earlier versions can be made to work,
 392                  * at least according to the Linux driver.
 393                  */
 394                 if (sc->sc_sta_firmware_ver >= 803)
 395                         ic->ic_caps |= IEEE80211_C_HOSTAP;
 396                 sc->sc_ibss_port = htole16(0);
 397
 398                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 399                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 400                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 401                 break;
 402
 403         case WI_SYMBOL:
 404                 sc->sc_ntxbuf = 1;
 405                 sc->sc_flags |= WI_FLAGS_HAS_DIVERSITY;
 406                 if (sc->sc_sta_firmware_ver >= 25000)
 407                         ic->ic_caps |= IEEE80211_C_IBSS;
 408                 sc->sc_ibss_port = htole16(4);
 409
 410                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 411                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 412                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 413                 break;
 414         }
 415
 416         /*
 417          * Find out if we support WEP on this card.
 418          */
 419         buflen = sizeof(val);
 420         if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
 421             val != htole16(0))
 422                 ic->ic_caps |= IEEE80211_C_WEP;
 423
 424         /* Find supported rates. */
 425         buflen = sizeof(ratebuf);
 426         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
 427         if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
 428                 nrates = le16toh(*(u_int16_t *)ratebuf);
 429                 if (nrates > IEEE80211_RATE_MAXSIZE)
 430                         nrates = IEEE80211_RATE_MAXSIZE;
 431                 rs->rs_nrates = 0;
 432                 for (i = 0; i < nrates; i++)
 433                         if (ratebuf[2+i])
 434                                 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
 435         } else {
 436                 /* XXX fallback on error? */
 437                 rs->rs_nrates = 0;
 438         }
 439
 440         buflen = sizeof(val);
 441         if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
 442             wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
 443                 sc->sc_dbm_offset = le16toh(val);
 444         }
 445
 446         sc->sc_max_datalen = 2304;
 447         sc->sc_system_scale = 1;
 448         sc->sc_cnfauthmode = IEEE80211_AUTH_OPEN;
 449         sc->sc_roaming_mode = 1;
 450
 451         sc->sc_portnum = WI_DEFAULT_PORT;
 452         sc->sc_authtype = WI_DEFAULT_AUTHTYPE;
 453
 454         bzero(sc->sc_nodename, sizeof(sc->sc_nodename));
 455         sc->sc_nodelen = sizeof(WI_DEFAULT_NODENAME) - 1;
 456         bcopy(WI_DEFAULT_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 457
 458         bzero(sc->sc_net_name, sizeof(sc->sc_net_name));
 459         bcopy(WI_DEFAULT_NETNAME, sc->sc_net_name,
 460             sizeof(WI_DEFAULT_NETNAME) - 1);
 461
 462         /*
 463          * Call MI attach routine.
 464          */
 465         ieee80211_ifattach(ic);
 466         /* override state transition method */
 467         sc->sc_newstate = ic->ic_newstate;
 468         sc->sc_key_alloc = ic->ic_crypto.cs_key_alloc;
 469         ic->ic_crypto.cs_key_alloc = wi_key_alloc;
 470         ic->ic_newstate = wi_newstate;
 471         ieee80211_media_init(ic, wi_media_change, wi_media_status);
 472
 473         bpfattach_dlt(ifp, DLT_IEEE802_11_RADIO,
 474                 sizeof(struct ieee80211_frame) + sizeof(sc->sc_tx_th),
 475                 &sc->sc_drvbpf);
 476         /*
 477          * Initialize constant fields.
 478          * XXX make header lengths a multiple of 32-bits so subsequent
 479          *     headers are properly aligned; this is a kludge to keep
 480          *     certain applications happy.
 481          *
 482          * NB: the channel is setup each time we transition to the
 483          *     RUN state to avoid filling it in for each frame.
 484          */
 485         sc->sc_tx_th_len = roundup(sizeof(sc->sc_tx_th), sizeof(u_int32_t));
 486         sc->sc_tx_th.wt_ihdr.it_len = htole16(sc->sc_tx_th_len);
 487         sc->sc_tx_th.wt_ihdr.it_present = htole32(WI_TX_RADIOTAP_PRESENT);
 488
 489         sc->sc_rx_th_len = roundup(sizeof(sc->sc_rx_th), sizeof(u_int32_t));
 490         sc->sc_rx_th.wr_ihdr.it_len = htole16(sc->sc_rx_th_len);
 491         sc->sc_rx_th.wr_ihdr.it_present = htole32(WI_RX_RADIOTAP_PRESENT);
 492
 493         error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
 494                                wi_intr, sc, &sc->wi_intrhand,
 495                                ifp->if_serializer);
 496         if (error) {
 497                 bpfdetach(ifp);
 498                 ieee80211_ifdetach(ic);
 499                 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
 500                 goto fail;
 501         }
 502
 503         if (bootverbose)
 504                 ieee80211_announce(ic);
 505
 506         return(0);
 507
 508 fail:
 509         wi_free(dev);
 510         return(error);
 511 }
 512
 513 int
 514 wi_detach(device_t dev)
 515 {
 516         struct wi_softc *sc = device_get_softc(dev);
 517         struct ifnet *ifp = &sc->sc_ic.ic_if;
 518
 519         lwkt_serialize_enter(ifp->if_serializer);
 520
 521         /* check if device was removed */
 522         sc->wi_gone |= !bus_child_present(dev);
 523         wi_stop(ifp, 0);
 524         bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
 525
 526         lwkt_serialize_exit(ifp->if_serializer);
 527
 528         bpfdetach(ifp);
 529         ieee80211_ifdetach(&sc->sc_ic);
 530         wi_free(dev);
 531         return (0);
 532 }
 533
 534 void
 535 wi_shutdown(device_t dev)
 536 {
 537         struct wi_softc *sc = device_get_softc(dev);
 538         struct ifnet *ifp = &sc->sc_if;
 539
 540         lwkt_serialize_enter(ifp->if_serializer);
 541         wi_stop(ifp, 1);
 542         lwkt_serialize_exit(ifp->if_serializer);
 543 }
 544
 545 #ifdef DEVICE_POLLING
 546
 547 static void
 548 wi_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
 549 {
 550         struct wi_softc *sc = ifp->if_softc;
 551         uint16_t status;
 552
 553         switch(cmd) {
 554         case POLL_REGISTER:
 555                 /* disable interruptds */
 556                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 557                 break;
 558         case POLL_DEREGISTER:
 559                 /* enable interrupts */
 560                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 561                 break;
 562         default:
 563                 status = CSR_READ_2(sc, WI_EVENT_STAT);
 564
 565                 if (status & WI_EV_RX)
 566                         wi_rx_intr(sc);
 567                 if (status & WI_EV_ALLOC)
 568                         wi_tx_intr(sc);
 569                 if (status & WI_EV_INFO)
 570                         wi_info_intr(sc);
 571
 572                 if (cmd == POLL_AND_CHECK_STATUS) {
 573                         if (status & WI_EV_INFO)
 574                                 wi_info_intr(sc);
 575                 }
 576
 577                 if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 578                     (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 && !ifq_is_empty(&ifp->if_snd)) {
 579                         wi_start(ifp);
 580                 }
 581                 break;
 582         }
 583 }
 584 #endif /* DEVICE_POLLING */
 585
 586 void
 587 wi_intr(void *arg)
 588 {
 589         struct wi_softc *sc = arg;
 590         struct ifnet *ifp = &sc->sc_ic.ic_if;
 591         u_int16_t status;
 592
 593         if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) {
 594                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 595                 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
 596                 return;
 597         }
 598
 599         /* Disable interrupts. */
 600         CSR_WRITE_2(sc, WI_INT_EN, 0);
 601
 602         status = CSR_READ_2(sc, WI_EVENT_STAT);
 603         if (status & WI_EV_RX)
 604                 wi_rx_intr(sc);
 605         if (status & WI_EV_ALLOC)
 606                 wi_tx_intr(sc);
 607         if (status & WI_EV_TX_EXC)
 608                 wi_tx_ex_intr(sc);
 609         if (status & WI_EV_INFO)
 610                 wi_info_intr(sc);
 611         if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 612             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 &&
 613             !ifq_is_empty(&ifp->if_snd))
 614                 wi_start(ifp);
 615
 616         /* Re-enable interrupts. */
 617         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 618
 619         return;
 620 }
 621
 622 void
 623 wi_init(void *arg)
 624 {
 625         struct wi_softc *sc = arg;
 626         struct ifnet *ifp = &sc->sc_if;
 627         struct ieee80211com *ic = &sc->sc_ic;
 628         struct wi_joinreq join;
 629         int i;
 630         int error = 0, wasenabled;
 631
 632         if (sc->wi_gone)
 633                 return;
 634
 635         if ((wasenabled = sc->sc_enabled))
 636                 wi_stop(ifp, 1);
 637         wi_reset(sc);
 638
 639         /* common 802.11 configuration */
 640         ic->ic_flags &= ~IEEE80211_F_IBSSON;
 641         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
 642         switch (ic->ic_opmode) {
 643         case IEEE80211_M_STA:
 644                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_BSS);
 645                 break;
 646         case IEEE80211_M_IBSS:
 647                 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_ibss_port);
 648                 ic->ic_flags |= IEEE80211_F_IBSSON;
 649                 break;
 650         case IEEE80211_M_AHDEMO:
 651                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 652                 break;
 653         case IEEE80211_M_HOSTAP:
 654                 /*
 655                  * For PRISM cards, override the empty SSID, because in
 656                  * HostAP mode the controller will lock up otherwise.
 657                  */
 658                 if (sc->sc_firmware_type == WI_INTERSIL &&
 659                     ic->ic_des_esslen == 0) {
 660                         ic->ic_des_essid[0] = ' ';
 661                         ic->ic_des_esslen = 1;
 662                 }
 663                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_HOSTAP);
 664                 break;
 665         case IEEE80211_M_MONITOR:
 666                 if (sc->sc_firmware_type == WI_LUCENT)
 667                         wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 668                 wi_cmd(sc, WI_CMD_DEBUG | (WI_TEST_MONITOR << 8), 0, 0, 0);
 669                 break;
 670         }
 671
 672         /* Intersil interprets this RID as joining ESS even in IBSS mode */
 673         if (sc->sc_firmware_type == WI_LUCENT &&
 674             (ic->ic_flags & IEEE80211_F_IBSSON) && ic->ic_des_esslen > 0)
 675                 wi_write_val(sc, WI_RID_CREATE_IBSS, 1);
 676         else
 677                 wi_write_val(sc, WI_RID_CREATE_IBSS, 0);
 678         wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
 679         wi_write_ssid(sc, WI_RID_DESIRED_SSID, ic->ic_des_essid,
 680             ic->ic_des_esslen);
 681         wi_write_val(sc, WI_RID_OWN_CHNL,
 682                 ieee80211_chan2ieee(ic, ic->ic_ibss_chan));
 683         wi_write_ssid(sc, WI_RID_OWN_SSID, ic->ic_des_essid, ic->ic_des_esslen);
 684
 685         IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
 686         wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, IEEE80211_ADDR_LEN);
 687
 688         if (ic->ic_caps & IEEE80211_C_PMGT) {
 689                 wi_write_val(sc, WI_RID_PM_ENABLED,
 690                     (ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0);
 691         }
 692
 693         /* not yet common 802.11 configuration */
 694         wi_write_val(sc, WI_RID_MAX_DATALEN, sc->sc_max_datalen);
 695         wi_write_val(sc, WI_RID_RTS_THRESH, ic->ic_rtsthreshold);
 696         if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
 697                 wi_write_val(sc, WI_RID_FRAG_THRESH, ic->ic_fragthreshold);
 698
 699         /* driver specific 802.11 configuration */
 700         if (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)
 701                 wi_write_val(sc, WI_RID_SYSTEM_SCALE, sc->sc_system_scale);
 702         if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
 703                 wi_write_val(sc, WI_RID_ROAMING_MODE, sc->sc_roaming_mode);
 704         if (sc->sc_flags & WI_FLAGS_HAS_MOR)
 705                 wi_write_val(sc, WI_RID_MICROWAVE_OVEN, sc->sc_microwave_oven);
 706         wi_write_txrate(sc);
 707         wi_write_ssid(sc, WI_RID_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 708
 709         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
 710             sc->sc_firmware_type == WI_INTERSIL) {
 711                 wi_write_val(sc, WI_RID_OWN_BEACON_INT, ic->ic_bintval);
 712                 wi_write_val(sc, WI_RID_BASIC_RATE, 0x03);   /* 1, 2 */
 713                 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0x0f); /* 1, 2, 5.5, 11 */
 714                 wi_write_val(sc, WI_RID_DTIM_PERIOD, ic->ic_dtim_period);
 715         }
 716
 717         /*
 718          * Initialize promisc mode.
 719          *      Being in the Host-AP mode causes a great
 720          *      deal of pain if primisc mode is set.
 721          *      Therefore we avoid confusing the firmware
 722          *      and always reset promisc mode in Host-AP
 723          *      mode.  Host-AP sees all the packets anyway.
 724          */
 725         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
 726             (ifp->if_flags & IFF_PROMISC) != 0) {
 727                 wi_write_val(sc, WI_RID_PROMISC, 1);
 728         } else {
 729                 wi_write_val(sc, WI_RID_PROMISC, 0);
 730         }
 731
 732         /* Configure WEP. */
 733         if (ic->ic_caps & IEEE80211_C_WEP) {
 734                 sc->sc_cnfauthmode = ic->ic_bss->ni_authmode;
 735                 wi_write_wep(sc);
 736         } else {
 737                 sc->sc_encryption = 0;
 738         }
 739
 740         /* Set multicast filter. */
 741         wi_write_multi(sc);
 742
 743         /* Allocate fids for the card */
 744         if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) {
 745                 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
 746                 if (sc->sc_firmware_type == WI_SYMBOL)
 747                         sc->sc_buflen = 1585;   /* XXX */
 748                 for (i = 0; i < sc->sc_ntxbuf; i++) {
 749                         error = wi_alloc_fid(sc, sc->sc_buflen,
 750                             &sc->sc_txd[i].d_fid);
 751                         if (error) {
 752                                 if_printf(ifp,
 753                                     "tx buffer allocation failed (error %u)\n",
 754                                     error);
 755                                 goto out;
 756                         }
 757                         sc->sc_txd[i].d_len = 0;
 758                 }
 759         }
 760         sc->sc_txcur = sc->sc_txnext = 0;
 761
 762         /* Enable desired port */
 763         wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
 764
 765         sc->sc_enabled = 1;
 766         ifp->if_flags |= IFF_RUNNING;
 767         ifp->if_flags &= ~IFF_OACTIVE;
 768         if (ic->ic_opmode == IEEE80211_M_AHDEMO ||
 769             ic->ic_opmode == IEEE80211_M_IBSS ||
 770             ic->ic_opmode == IEEE80211_M_MONITOR ||
 771             ic->ic_opmode == IEEE80211_M_HOSTAP)
 772                 ieee80211_create_ibss(ic, ic->ic_ibss_chan);
 773
 774         /* Enable interrupts if not polling */
 775 #ifdef DEVICE_POLLING
 776         if ((ifp->if_flags & IFF_POLLING) == 0)
 777 #endif
 778                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 779
 780         if (!wasenabled &&
 781             ic->ic_opmode == IEEE80211_M_HOSTAP &&
 782             sc->sc_firmware_type == WI_INTERSIL) {
 783                 /* XXX: some card need to be re-enabled for hostap */
 784                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
 785                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
 786         }
 787
 788         if (ic->ic_opmode == IEEE80211_M_STA &&
 789             ((ic->ic_flags & IEEE80211_F_DESBSSID) ||
 790             ic->ic_des_chan != IEEE80211_CHAN_ANYC)) {
 791                 memset(&join, 0, sizeof(join));
 792                 if (ic->ic_flags & IEEE80211_F_DESBSSID)
 793                         IEEE80211_ADDR_COPY(&join.wi_bssid, ic->ic_des_bssid);
 794                 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC)
 795                         join.wi_chan = htole16(
 796                                 ieee80211_chan2ieee(ic, ic->ic_des_chan));
 797                 /* Lucent firmware does not support the JOIN RID. */
 798                 if (sc->sc_firmware_type != WI_LUCENT)
 799                         wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
 800         }
 801         return;
 802 out:
 803         if (error) {
 804                 if_printf(ifp, "interface not running\n");
 805                 wi_stop(ifp, 1);
 806         }
 807
 808         DPRINTF((ifp, "wi_init: return %d\n", error));
 809         return;
 810 }
 811
 812 void
 813 wi_stop(struct ifnet *ifp, int disable)
 814 {
 815         struct ieee80211com *ic = (struct ieee80211com *) ifp;
 816         struct wi_softc *sc = ifp->if_softc;
 817
 818         DELAY(100000);
 819
 820         ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
 821         if (sc->sc_enabled && !sc->wi_gone) {
 822                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 823                 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
 824                 if (disable) {
 825 #ifdef __NetBSD__
 826                         if (sc->sc_disable)
 827                                 (*sc->sc_disable)(sc);
 828 #endif
 829                         sc->sc_enabled = 0;
 830                 }
 831         } else if (sc->wi_gone && disable)      /* gone --> not enabled */
 832             sc->sc_enabled = 0;
 833
 834         sc->sc_tx_timer = 0;
 835         sc->sc_scan_timer = 0;
 836         sc->sc_false_syns = 0;
 837         sc->sc_naps = 0;
 838         ifp->if_flags &= ~(IFF_OACTIVE | IFF_RUNNING);
 839         ifp->if_timer = 0;
 840 }
 841
 842 static void
 843 wi_start(struct ifnet *ifp)
 844 {
 845         struct wi_softc *sc = ifp->if_softc;
 846         struct ieee80211com *ic = &sc->sc_ic;
 847         struct ieee80211_node *ni;
 848         struct ieee80211_frame *wh;
 849         struct mbuf *m0;
 850         struct wi_frame frmhdr;
 851         int cur, fid, off, error;
 852
 853         if (sc->wi_gone || (sc->sc_flags & WI_FLAGS_OUTRANGE))
 854                 return;
 855
 856         memset(&frmhdr, 0, sizeof(frmhdr));
 857         cur = sc->sc_txnext;
 858         for (;;) {
 859                 IF_POLL(&ic->ic_mgtq, m0);
 860                 if (m0 != NULL) {
 861                         if (sc->sc_txd[cur].d_len != 0) {
 862                                 ifp->if_flags |= IFF_OACTIVE;
 863                                 break;
 864                         }
 865                         IF_DEQUEUE(&ic->ic_mgtq, m0);
 866                         /*
 867                          * Hack!  The referenced node pointer is in the
 868                          * rcvif field of the packet header.  This is
 869                          * placed there by ieee80211_mgmt_output because
 870                          * we need to hold the reference with the frame
 871                          * and there's no other way (other than packet
 872                          * tags which we consider too expensive to use)
 873                          * to pass it along.
 874                          */
 875                         ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
 876                         m0->m_pkthdr.rcvif = NULL;
 877
 878                         m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
 879                             (caddr_t)&frmhdr.wi_ehdr);
 880                         frmhdr.wi_ehdr.ether_type = 0;
 881                         wh = mtod(m0, struct ieee80211_frame *);
 882                 } else {
 883                         struct ether_header *eh;
 884
 885                         if (ic->ic_state != IEEE80211_S_RUN)
 886                                 break;
 887                         m0 = ifq_poll(&ifp->if_snd);
 888                         if (m0 == NULL)
 889                                 break;
 890                         if (sc->sc_txd[cur].d_len != 0) {
 891                                 ifp->if_flags |= IFF_OACTIVE;
 892                                 break;
 893                         }
 894
 895                         ifq_dequeue(&ifp->if_snd, m0);
 896                         if (m0->m_len < sizeof(struct ether_header)) {
 897                                 m0 = m_pullup(m0, sizeof(struct ether_header));
 898                                 if (m0 == NULL) {
 899                                         ifp->if_oerrors++;
 900                                         continue;
 901                                 }
 902                         }
 903
 904                         eh = mtod(m0, struct ether_header *);
 905                         ni = ieee80211_find_txnode(ic, eh->ether_dhost);
 906                         if (ni == NULL) {
 907                                 m_freem(m0);
 908                                 ifp->if_oerrors++;
 909                                 continue;
 910                         }
 911
 912                         ifp->if_opackets++;
 913                         m_copydata(m0, 0, ETHER_HDR_LEN,
 914                             (caddr_t)&frmhdr.wi_ehdr);
 915                         BPF_MTAP(ifp, m0);
 916
 917                         m0 = ieee80211_encap(ic, m0, ni);
 918                         if (m0 == NULL) {
 919                                 ieee80211_free_node(ni);
 920                                 ifp->if_oerrors++;
 921                                 continue;
 922                         }
 923                         wh = mtod(m0, struct ieee80211_frame *);
 924                 }
 925
 926                 if (ic->ic_rawbpf != NULL)
 927                         bpf_mtap(ic->ic_rawbpf, m0);
 928
 929                 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 930                 /* XXX check key for SWCRYPT instead of using operating mode */
 931                 if ((wh->i_fc[1] & IEEE80211_FC1_WEP) &&
 932                     (sc->sc_encryption & HOST_ENCRYPT)) {
 933                         if (ieee80211_crypto_encap(ic, ni, m0) == NULL) {
 934                                 if (ni != NULL)
 935                                         ieee80211_free_node(ni);
 936                                 m_freem(m0);
 937                                 ifp->if_oerrors++;
 938                                 continue;
 939                         }
 940                         frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 941                 }
 942
 943                 if (sc->sc_drvbpf) {
 944                         sc->sc_tx_th.wt_rate =
 945                                 ni->ni_rates.rs_rates[ni->ni_txrate];
 946                         bpf_ptap(sc->sc_drvbpf, m0, &sc->sc_tx_th,
 947                                  sc->sc_tx_th_len);
 948                 }
 949
 950                 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 951                     (caddr_t)&frmhdr.wi_whdr);
 952                 m_adj(m0, sizeof(struct ieee80211_frame));
 953                 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 954                 if (IFF_DUMPPKTS(ifp))
 955                         wi_dump_pkt(&frmhdr, NULL, -1);
 956                 fid = sc->sc_txd[cur].d_fid;
 957                 off = sizeof(frmhdr);
 958                 error = wi_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0
 959                      || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
 960                 m_freem(m0);
 961                 if (ni != NULL)
 962                         ieee80211_free_node(ni);
 963                 if (error) {
 964                         ifp->if_oerrors++;
 965                         continue;
 966                 }
 967                 sc->sc_txd[cur].d_len = off;
 968                 if (sc->sc_txcur == cur) {
 969                         if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
 970                                 if_printf(ifp, "xmit failed\n");
 971                                 sc->sc_txd[cur].d_len = 0;
 972                                 continue;
 973                         }
 974                         sc->sc_tx_timer = 5;
 975                         ifp->if_timer = 1;
 976                 }
 977                 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 978         }
 979 }
 980
 981 static int
 982 wi_reset(struct wi_softc *sc)
 983 {
 984         struct ieee80211com *ic = &sc->sc_ic;
 985         struct ifnet *ifp = &ic->ic_if;
 986 #define WI_INIT_TRIES 3
 987         int i;
 988         int error = 0;
 989         int tries;
 990
 991         /* Symbol firmware cannot be initialized more than once */
 992         if (sc->sc_firmware_type == WI_SYMBOL && sc->sc_reset)
 993                 return (0);
 994         if (sc->sc_firmware_type == WI_SYMBOL)
 995                 tries = 1;
 996         else
 997                 tries = WI_INIT_TRIES;
 998
 999         for (i = 0; i < tries; i++) {
1000                 if ((error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0)) == 0)
1001                         break;
1002                 DELAY(WI_DELAY * 1000);
1003         }
1004         sc->sc_reset = 1;
1005
1006         if (i == tries) {
1007                 if_printf(ifp, "init failed\n");
1008                 return (error);
1009         }
1010
1011         CSR_WRITE_2(sc, WI_INT_EN, 0);
1012         CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
1013
1014         /* Calibrate timer. */
1015         wi_write_val(sc, WI_RID_TICK_TIME, 8);
1016
1017         return (0);
1018 #undef WI_INIT_TRIES
1019 }
1020
1021 static void
1022 wi_watchdog(struct ifnet *ifp)
1023 {
1024         struct wi_softc *sc = ifp->if_softc;
1025
1026         ifp->if_timer = 0;
1027         if (!sc->sc_enabled)
1028                 return;
1029
1030         if (sc->sc_tx_timer) {
1031                 if (--sc->sc_tx_timer == 0) {
1032                         if_printf(ifp, "device timeout\n");
1033                         ifp->if_oerrors++;
1034                         wi_init(ifp->if_softc);
1035                         return;
1036                 }
1037                 ifp->if_timer = 1;
1038         }
1039
1040         if (sc->sc_scan_timer) {
1041                 if (--sc->sc_scan_timer <= WI_SCAN_WAIT - WI_SCAN_INQWAIT &&
1042                     sc->sc_firmware_type == WI_INTERSIL) {
1043                         DPRINTF((ifp, "wi_watchdog: inquire scan\n"));
1044                         wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
1045                 }
1046                 if (sc->sc_scan_timer)
1047                         ifp->if_timer = 1;
1048         }
1049
1050         /* TODO: rate control */
1051         ieee80211_watchdog(&sc->sc_ic);
1052 }
1053
1054 static int
1055 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1056 {
1057         struct wi_softc *sc = ifp->if_softc;
1058         struct ieee80211com *ic = &sc->sc_ic;
1059         struct ifreq *ifr = (struct ifreq *)data;
1060         struct ieee80211req *ireq;
1061         u_int8_t nodename[IEEE80211_NWID_LEN];
1062         int error = 0;
1063         struct wi_req wreq;
1064
1065         if (sc->wi_gone) {
1066                 error = ENODEV;
1067                 goto out;
1068         }
1069
1070         switch (cmd) {
1071         case SIOCSIFFLAGS:
1072                 /*
1073                  * Can't do promisc and hostap at the same time.  If all that's
1074                  * changing is the promisc flag, try to short-circuit a call to
1075                  * wi_init() by just setting PROMISC in the hardware.
1076                  */
1077                 if (ifp->if_flags & IFF_UP) {
1078                         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
1079                             ifp->if_flags & IFF_RUNNING) {
1080                                 if (ifp->if_flags & IFF_PROMISC &&
1081                                     !(sc->sc_if_flags & IFF_PROMISC)) {
1082                                         wi_write_val(sc, WI_RID_PROMISC, 1);
1083                                 } else if (!(ifp->if_flags & IFF_PROMISC) &&
1084                                     sc->sc_if_flags & IFF_PROMISC) {
1085                                         wi_write_val(sc, WI_RID_PROMISC, 0);
1086                                 } else {
1087                                         wi_init(sc);
1088                                 }
1089                         } else {
1090                                 wi_init(sc);
1091                         }
1092                 } else {
1093                         if (ifp->if_flags & IFF_RUNNING) {
1094                                 wi_stop(ifp, 1);
1095                         }
1096                         sc->wi_gone = 0;
1097                 }
1098                 sc->sc_if_flags = ifp->if_flags;
1099                 error = 0;
1100                 break;
1101         case SIOCADDMULTI:
1102         case SIOCDELMULTI:
1103                 error = wi_write_multi(sc);
1104                 break;
1105         case SIOCGIFGENERIC:
1106                 error = wi_get_cfg(ifp, cmd, data, cr);
1107                 break;
1108         case SIOCSIFGENERIC:
1109                 error = suser_cred(cr, NULL_CRED_OKAY);
1110                 if (error)
1111                         break;
1112                 error = wi_set_cfg(ifp, cmd, data);
1113                 break;
1114         case SIOCGPRISM2DEBUG:
1115                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1116                 if (error)
1117                         break;
1118                 if (!(ifp->if_flags & IFF_RUNNING) ||
1119                     sc->sc_firmware_type == WI_LUCENT) {
1120                         error = EIO;
1121                         break;
1122                 }
1123                 error = wi_get_debug(sc, &wreq);
1124                 if (error == 0)
1125                         error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
1126                 break;
1127         case SIOCSPRISM2DEBUG:
1128                 if ((error = suser_cred(cr, NULL_CRED_OKAY)))
1129                         goto out;
1130                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1131                 if (error)
1132                         break;
1133                 error = wi_set_debug(sc, &wreq);
1134                 break;
1135         case SIOCG80211:
1136                 ireq = (struct ieee80211req *) data;
1137                 switch (ireq->i_type) {
1138                 case IEEE80211_IOC_STATIONNAME:
1139                         ireq->i_len = sc->sc_nodelen + 1;
1140                         error = copyout(sc->sc_nodename, ireq->i_data,
1141                                         ireq->i_len);
1142                         break;
1143                 default:
1144                         error = ieee80211_ioctl(ic, cmd, data, cr);
1145                         break;
1146                 }
1147                 break;
1148         case SIOCS80211:
1149                 error = suser_cred(cr, NULL_CRED_OKAY);
1150                 if (error)
1151                         break;
1152                 ireq = (struct ieee80211req *) data;
1153                 switch (ireq->i_type) {
1154                 case IEEE80211_IOC_STATIONNAME:
1155                         if (ireq->i_val != 0 ||
1156                             ireq->i_len > IEEE80211_NWID_LEN) {
1157                                 error = EINVAL;
1158                                 break;
1159                         }
1160                         memset(nodename, 0, IEEE80211_NWID_LEN);
1161                         error = copyin(ireq->i_data, nodename, ireq->i_len);
1162                         if (error)
1163                                 break;
1164                         if (sc->sc_enabled) {
1165                                 error = wi_write_ssid(sc, WI_RID_NODENAME,
1166                                         nodename, ireq->i_len);
1167                                 if (error)
1168                                         break;
1169                         }
1170                         memcpy(sc->sc_nodename, nodename, IEEE80211_NWID_LEN);
1171                         sc->sc_nodelen = ireq->i_len;
1172                         break;
1173                 default:
1174                         error = ieee80211_ioctl(ic, cmd, data, cr);
1175                         break;
1176                 }
1177                 break;
1178         case SIOCSIFCAP:
1179                 if (ifp->if_flags & IFF_RUNNING)
1180                         wi_init(sc);
1181                 break;
1182         default:
1183                 error = ieee80211_ioctl(ic, cmd, data, cr);
1184                 break;
1185         }
1186         if (error == ENETRESET) {
1187                 if (sc->sc_enabled)
1188                         wi_init(sc);    /* XXX no error return */
1189                 error = 0;
1190         }
1191 out:
1192         return error;
1193 }
1194
1195 static int
1196 wi_media_change(struct ifnet *ifp)
1197 {
1198         struct wi_softc *sc = ifp->if_softc;
1199         int error;
1200
1201         error = ieee80211_media_change(ifp);
1202         if (error == ENETRESET) {
1203                 if (sc->sc_enabled)
1204                         wi_init(sc);    /* XXX no error return */
1205                 error = 0;
1206         }
1207         return error;
1208 }
1209
1210 static void
1211 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
1212 {
1213         struct wi_softc *sc = ifp->if_softc;
1214         struct ieee80211com *ic = &sc->sc_ic;
1215         u_int16_t val;
1216         int rate, len;
1217
1218         if (sc->wi_gone) {      /* hardware gone (e.g. ejected) */
1219                 imr->ifm_active = IFM_IEEE80211 | IFM_NONE;
1220                 imr->ifm_status = 0;
1221                 return;
1222         }
1223
1224         imr->ifm_status = IFM_AVALID;
1225         imr->ifm_active = IFM_IEEE80211;
1226         if (!sc->sc_enabled) {  /* port !enabled, have no status */
1227                 imr->ifm_active |= IFM_NONE;
1228                 return;
1229         }
1230         if (ic->ic_state == IEEE80211_S_RUN &&
1231             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0)
1232                 imr->ifm_status |= IFM_ACTIVE;
1233         len = sizeof(val);
1234         if (wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 &&
1235             len == sizeof(val)) {
1236                 /* convert to 802.11 rate */
1237                 val = le16toh(val);
1238                 rate = val * 2;
1239                 if (sc->sc_firmware_type == WI_LUCENT) {
1240                         if (rate == 10)
1241                                 rate = 11;      /* 5.5Mbps */
1242                 } else {
1243                         if (rate == 4*2)
1244                                 rate = 11;      /* 5.5Mbps */
1245                         else if (rate == 8*2)
1246                                 rate = 22;      /* 11Mbps */
1247                 }
1248         } else {
1249                 rate = 0;
1250         }
1251         imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B);
1252         switch (ic->ic_opmode) {
1253         case IEEE80211_M_STA:
1254                 break;
1255         case IEEE80211_M_IBSS:
1256                 imr->ifm_active |= IFM_IEEE80211_ADHOC;
1257                 break;
1258         case IEEE80211_M_AHDEMO:
1259                 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0;
1260                 break;
1261         case IEEE80211_M_HOSTAP:
1262                 imr->ifm_active |= IFM_IEEE80211_HOSTAP;
1263                 break;
1264         case IEEE80211_M_MONITOR:
1265                 imr->ifm_active |= IFM_IEEE80211_MONITOR;
1266                 break;
1267         }
1268 }
1269
1270 static void
1271 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
1272 {
1273         struct ieee80211com *ic = &sc->sc_ic;
1274         struct ieee80211_node *ni = ic->ic_bss;
1275         struct ifnet *ifp = &ic->ic_if;
1276
1277         if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
1278                 return;
1279
1280         DPRINTF((ifp, "wi_sync_bssid: bssid %6D -> %6D ?\n", ni->ni_bssid, ":",
1281             new_bssid, ":"));
1282
1283         /* In promiscuous mode, the BSSID field is not a reliable
1284          * indicator of the firmware's BSSID. Damp spurious
1285          * change-of-BSSID indications.
1286          */
1287         if ((ifp->if_flags & IFF_PROMISC) != 0 &&
1288             !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns,
1289                          WI_MAX_FALSE_SYNS))
1290                 return;
1291
1292         sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1);
1293         /*
1294          * XXX hack; we should create a new node with the new bssid
1295          * and replace the existing ic_bss with it but since we don't
1296          * process management frames to collect state we cheat by
1297          * reusing the existing node as we know wi_newstate will be
1298          * called and it will overwrite the node state.
1299          */
1300         ieee80211_sta_join(ic, ieee80211_ref_node(ni));
1301 }
1302
1303 static void
1304 wi_rx_monitor(struct wi_softc *sc, int fid)
1305 {
1306         struct ieee80211com *ic = &sc->sc_ic;
1307         struct ifnet *ifp = &ic->ic_if;
1308         struct wi_frame *rx_frame;
1309         struct mbuf *m;
1310         int datlen, hdrlen;
1311
1312         /* first allocate mbuf for packet storage */
1313         m = m_getcl(MB_DONTWAIT, MT_DATA, 0);
1314         if (m == NULL) {
1315                 ifp->if_ierrors++;
1316                 return;
1317         }
1318
1319         m->m_pkthdr.rcvif = ifp;
1320
1321         /* now read wi_frame first so we know how much data to read */
1322         if (wi_read_bap(sc, fid, 0, mtod(m, caddr_t), sizeof(*rx_frame))) {
1323                 ifp->if_ierrors++;
1324                 goto done;
1325         }
1326
1327         rx_frame = mtod(m, struct wi_frame *);
1328
1329         switch ((rx_frame->wi_status & WI_STAT_MAC_PORT) >> 8) {
1330         case 7:
1331                 switch (rx_frame->wi_whdr.i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
1332                 case IEEE80211_FC0_TYPE_DATA:
1333                         hdrlen = WI_DATA_HDRLEN;
1334                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1335                         break;
1336                 case IEEE80211_FC0_TYPE_MGT:
1337                         hdrlen = WI_MGMT_HDRLEN;
1338                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1339                         break;
1340                 case IEEE80211_FC0_TYPE_CTL:
1341                         /*
1342                          * prism2 cards don't pass control packets
1343                          * down properly or consistently, so we'll only
1344                          * pass down the header.
1345                          */
1346                         hdrlen = WI_CTL_HDRLEN;
1347                         datlen = 0;
1348                         break;
1349                 default:
1350                         if_printf(ifp, "received packet of unknown type "
1351                                 "on port 7\n");
1352                         ifp->if_ierrors++;
1353                         goto done;
1354                 }
1355                 break;
1356         case 0:
1357                 hdrlen = WI_DATA_HDRLEN;
1358                 datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1359                 break;
1360         default:
1361                 if_printf(ifp, "received packet on invalid "
1362                     "port (wi_status=0x%x)\n", rx_frame->wi_status);
1363                 ifp->if_ierrors++;
1364                 goto done;
1365         }
1366
1367         if (hdrlen + datlen + 2 > MCLBYTES) {
1368                 if_printf(ifp, "oversized packet received "
1369                     "(wi_dat_len=%d, wi_status=0x%x)\n",
1370                     datlen, rx_frame->wi_status);
1371                 ifp->if_ierrors++;
1372                 goto done;
1373         }
1374
1375         if (wi_read_bap(sc, fid, hdrlen, mtod(m, caddr_t) + hdrlen,
1376             datlen + 2) == 0) {
1377                 m->m_pkthdr.len = m->m_len = hdrlen + datlen;
1378                 ifp->if_ipackets++;
1379                 BPF_MTAP(ifp, m);       /* Handle BPF listeners. */
1380         } else
1381                 ifp->if_ierrors++;
1382 done:
1383         m_freem(m);
1384 }
1385
1386 static void
1387 wi_rx_intr(struct wi_softc *sc)
1388 {
1389         struct ieee80211com *ic = &sc->sc_ic;
1390         struct ifnet *ifp = &ic->ic_if;
1391         struct wi_frame frmhdr;
1392         struct mbuf *m;
1393         struct ieee80211_frame *wh;
1394         struct ieee80211_node *ni;
1395         int fid, len, off, rssi;
1396         u_int8_t dir;
1397         u_int16_t status;
1398         u_int32_t rstamp;
1399
1400         fid = CSR_READ_2(sc, WI_RX_FID);
1401
1402         if (sc->wi_debug.wi_monitor) {
1403                 /*
1404                  * If we are in monitor mode just
1405                  * read the data from the device.
1406                  */
1407                 wi_rx_monitor(sc, fid);
1408                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1409                 return;
1410         }
1411
1412         /* First read in the frame header */
1413         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
1414                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1415                 ifp->if_ierrors++;
1416                 DPRINTF((ifp, "wi_rx_intr: read fid %x failed\n", fid));
1417                 return;
1418         }
1419
1420         if (IFF_DUMPPKTS(ifp))
1421                 wi_dump_pkt(&frmhdr, NULL, frmhdr.wi_rx_signal);
1422
1423         /*
1424          * Drop undecryptable or packets with receive errors here
1425          */
1426         status = le16toh(frmhdr.wi_status);
1427         if (status & WI_STAT_ERRSTAT) {
1428                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1429                 ifp->if_ierrors++;
1430                 DPRINTF((ifp, "wi_rx_intr: fid %x error status %x\n",
1431                          fid, status));
1432                 return;
1433         }
1434         rssi = frmhdr.wi_rx_signal;
1435         rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
1436             le16toh(frmhdr.wi_rx_tstamp1);
1437
1438         len = le16toh(frmhdr.wi_dat_len);
1439         off = ALIGN(sizeof(struct ieee80211_frame));
1440
1441         /*
1442          * Sometimes the PRISM2.x returns bogusly large frames. Except
1443          * in monitor mode, just throw them away.
1444          */
1445         if (off + len > MCLBYTES) {
1446                 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1447                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1448                         ifp->if_ierrors++;
1449                         DPRINTF((ifp, "wi_rx_intr: oversized packet\n"));
1450                         return;
1451                 } else
1452                         len = 0;
1453         }
1454
1455         m = m_getl(off + len, MB_DONTWAIT, MT_DATA, M_PKTHDR, NULL);
1456         if (m == NULL) {
1457                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1458                 ifp->if_ierrors++;
1459                 DPRINTF((ifp, "wi_rx_intr: m_getl failed\n"));
1460                 return;
1461         }
1462
1463         m->m_data += off - sizeof(struct ieee80211_frame);
1464         memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
1465         wi_read_bap(sc, fid, sizeof(frmhdr),
1466             m->m_data + sizeof(struct ieee80211_frame), len);
1467         m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
1468         m->m_pkthdr.rcvif = ifp;
1469
1470         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1471
1472         wh = mtod(m, struct ieee80211_frame *);
1473         if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1474                 /*
1475                  * WEP is decrypted by hardware and the IV
1476                  * is stripped.  Clear WEP bit so we don't
1477                  * try to process it in ieee80211_input.
1478                  * XXX fix for TKIP, et. al.
1479                  */
1480                 wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
1481         }
1482
1483         if (sc->sc_drvbpf) {
1484                 /* XXX replace divide by table */
1485                 sc->sc_rx_th.wr_rate = frmhdr.wi_rx_rate / 5;
1486                 sc->sc_rx_th.wr_antsignal = frmhdr.wi_rx_signal;
1487                 sc->sc_rx_th.wr_antnoise = frmhdr.wi_rx_silence;
1488                 sc->sc_rx_th.wr_flags = 0;
1489                 if (frmhdr.wi_status & WI_STAT_PCF)
1490                         sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_CFP;
1491                 bpf_ptap(sc->sc_drvbpf, m, &sc->sc_rx_th, sc->sc_rx_th_len);
1492         }
1493
1494         /* synchronize driver's BSSID with firmware's BSSID */
1495         dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
1496         if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
1497                 wi_sync_bssid(sc, wh->i_addr3);
1498
1499         /*
1500          * Locate the node for sender, track state, and
1501          * then pass this node (referenced) up to the 802.11
1502          * layer for its use.
1503          */
1504         ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *) wh);
1505         /*
1506          * Send frame up for processing.
1507          */
1508         ieee80211_input(ic, m, ni, rssi, rstamp);
1509         /*
1510          * The frame may have caused the node to be marked for
1511          * reclamation (e.g. in response to a DEAUTH message)
1512          * so use free_node here instead of unref_node.
1513          */
1514         ieee80211_free_node(ni);
1515 }
1516
1517 static void
1518 wi_tx_ex_intr(struct wi_softc *sc)
1519 {
1520         struct ieee80211com *ic = &sc->sc_ic;
1521         struct ifnet *ifp = &ic->ic_if;
1522         struct wi_frame frmhdr;
1523         int fid;
1524
1525         fid = CSR_READ_2(sc, WI_TX_CMP_FID);
1526         /* Read in the frame header */
1527         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
1528                 u_int16_t status = le16toh(frmhdr.wi_status);
1529
1530                 /*
1531                  * Spontaneous station disconnects appear as xmit
1532                  * errors.  Don't announce them and/or count them
1533                  * as an output error.
1534                  */
1535                 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
1536                         if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
1537                                 if_printf(ifp, "tx failed");
1538                                 if (status & WI_TXSTAT_RET_ERR)
1539                                         printf(", retry limit exceeded");
1540                                 if (status & WI_TXSTAT_AGED_ERR)
1541                                         printf(", max transmit lifetime exceeded");
1542                                 if (status & WI_TXSTAT_DISCONNECT)
1543                                         printf(", port disconnected");
1544                                 if (status & WI_TXSTAT_FORM_ERR)
1545                                         printf(", invalid format (data len %u src %6D)",
1546                                                 le16toh(frmhdr.wi_dat_len),
1547                                                 frmhdr.wi_ehdr.ether_shost, ":");
1548                                 if (status & ~0xf)
1549                                         printf(", status=0x%x", status);
1550                                 printf("\n");
1551                         }
1552                         ifp->if_oerrors++;
1553                 } else {
1554                         DPRINTF((ifp, "port disconnected\n"));
1555                         ifp->if_collisions++;   /* XXX */
1556                 }
1557         } else
1558                 DPRINTF((ifp, "wi_tx_ex_intr: read fid %x failed\n", fid));
1559         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
1560 }
1561
1562 static void
1563 wi_tx_intr(struct wi_softc *sc)
1564 {
1565         struct ieee80211com *ic = &sc->sc_ic;
1566         struct ifnet *ifp = &ic->ic_if;
1567         int fid, cur;
1568
1569         if (sc->wi_gone)
1570                 return;
1571
1572         fid = CSR_READ_2(sc, WI_ALLOC_FID);
1573         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1574
1575         cur = sc->sc_txcur;
1576         if (sc->sc_txd[cur].d_fid != fid) {
1577                 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n",
1578                     fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
1579                 return;
1580         }
1581         sc->sc_tx_timer = 0;
1582         sc->sc_txd[cur].d_len = 0;
1583         sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
1584         if (sc->sc_txd[cur].d_len == 0)
1585                 ifp->if_flags &= ~IFF_OACTIVE;
1586         else {
1587                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
1588                     0, 0)) {
1589                         if_printf(ifp, "xmit failed\n");
1590                         sc->sc_txd[cur].d_len = 0;
1591                 } else {
1592                         sc->sc_tx_timer = 5;
1593                         ifp->if_timer = 1;
1594                 }
1595         }
1596 }
1597
1598 static void
1599 wi_info_intr(struct wi_softc *sc)
1600 {
1601         struct ieee80211com *ic = &sc->sc_ic;
1602         struct ifnet *ifp = &ic->ic_if;
1603         int i, fid, len, off;
1604         u_int16_t ltbuf[2];
1605         u_int16_t stat;
1606         u_int32_t *ptr;
1607
1608         fid = CSR_READ_2(sc, WI_INFO_FID);
1609         wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
1610
1611         switch (le16toh(ltbuf[1])) {
1612
1613         case WI_INFO_LINK_STAT:
1614                 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
1615                 DPRINTF((ifp, "wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
1616                 switch (le16toh(stat)) {
1617                 case WI_INFO_LINK_STAT_CONNECTED:
1618                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1619                         if (ic->ic_state == IEEE80211_S_RUN &&
1620                             ic->ic_opmode != IEEE80211_M_IBSS)
1621                                 break;
1622                         /* FALLTHROUGH */
1623                 case WI_INFO_LINK_STAT_AP_CHG:
1624                         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1625                         break;
1626                 case WI_INFO_LINK_STAT_AP_INR:
1627                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1628                         break;
1629                 case WI_INFO_LINK_STAT_AP_OOR:
1630                         if (sc->sc_firmware_type == WI_SYMBOL &&
1631                             sc->sc_scan_timer > 0) {
1632                                 if (wi_cmd(sc, WI_CMD_INQUIRE,
1633                                     WI_INFO_HOST_SCAN_RESULTS, 0, 0) != 0)
1634                                         sc->sc_scan_timer = 0;
1635                                 break;
1636                         }
1637                         if (ic->ic_opmode == IEEE80211_M_STA)
1638                                 sc->sc_flags |= WI_FLAGS_OUTRANGE;
1639                         break;
1640                 case WI_INFO_LINK_STAT_DISCONNECTED:
1641                 case WI_INFO_LINK_STAT_ASSOC_FAILED:
1642                         if (ic->ic_opmode == IEEE80211_M_STA)
1643                                 ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
1644                         break;
1645                 }
1646                 break;
1647
1648         case WI_INFO_COUNTERS:
1649                 /* some card versions have a larger stats structure */
1650                 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
1651                 ptr = (u_int32_t *)&sc->sc_stats;
1652                 off = sizeof(ltbuf);
1653                 for (i = 0; i < len; i++, off += 2, ptr++) {
1654                         wi_read_bap(sc, fid, off, &stat, sizeof(stat));
1655 #ifdef WI_HERMES_STATS_WAR
1656                         if (stat & 0xf000)
1657                                 stat = ~stat;
1658 #endif
1659                         *ptr += stat;
1660                 }
1661                 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries +
1662                     sc->sc_stats.wi_tx_multi_retries +
1663                     sc->sc_stats.wi_tx_retry_limit;
1664                 break;
1665
1666         case WI_INFO_SCAN_RESULTS:
1667         case WI_INFO_HOST_SCAN_RESULTS:
1668                 wi_scan_result(sc, fid, le16toh(ltbuf[0]));
1669                 break;
1670
1671         default:
1672                 DPRINTF((ifp, "wi_info_intr: got fid %x type %x len %d\n", fid,
1673                     le16toh(ltbuf[1]), le16toh(ltbuf[0])));
1674                 break;
1675         }
1676         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
1677 }
1678
1679 static int
1680 wi_write_multi(struct wi_softc *sc)
1681 {
1682         struct ifnet *ifp = &sc->sc_ic.ic_if;
1683         int n;
1684         struct ifmultiaddr *ifma;
1685         struct wi_mcast mlist;
1686
1687         if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1688 allmulti:
1689                 memset(&mlist, 0, sizeof(mlist));
1690                 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1691                     sizeof(mlist));
1692         }
1693
1694         n = 0;
1695         LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1696                 if (ifma->ifma_addr->sa_family != AF_LINK)
1697                         continue;
1698                 if (n >= 16)
1699                         goto allmulti;
1700                 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
1701                     (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
1702                 n++;
1703         }
1704         return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1705             IEEE80211_ADDR_LEN * n);
1706 }
1707
1708 static void
1709 wi_read_nicid(struct wi_softc *sc)
1710 {
1711         struct wi_card_ident *id;
1712         char *p;
1713         int len;
1714         u_int16_t ver[4];
1715
1716         /* getting chip identity */
1717         memset(ver, 0, sizeof(ver));
1718         len = sizeof(ver);
1719         wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
1720         if_printf(&sc->sc_ic.ic_if, "using ");
1721
1722         sc->sc_firmware_type = WI_NOTYPE;
1723         for (id = wi_card_ident; id->card_name != NULL; id++) {
1724                 if (le16toh(ver[0]) == id->card_id) {
1725                         printf("%s", id->card_name);
1726                         sc->sc_firmware_type = id->firm_type;
1727                         break;
1728                 }
1729         }
1730         if (sc->sc_firmware_type == WI_NOTYPE) {
1731                 if (le16toh(ver[0]) & 0x8000) {
1732                         printf("Unknown PRISM2 chip");
1733                         sc->sc_firmware_type = WI_INTERSIL;
1734                 } else {
1735                         printf("Unknown Lucent chip");
1736                         sc->sc_firmware_type = WI_LUCENT;
1737                 }
1738         }
1739
1740         /* get primary firmware version (Only Prism chips) */
1741         if (sc->sc_firmware_type != WI_LUCENT) {
1742                 memset(ver, 0, sizeof(ver));
1743                 len = sizeof(ver);
1744                 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
1745                 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
1746                     le16toh(ver[3]) * 100 + le16toh(ver[1]);
1747         }
1748
1749         /* get station firmware version */
1750         memset(ver, 0, sizeof(ver));
1751         len = sizeof(ver);
1752         wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
1753         sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
1754             le16toh(ver[3]) * 100 + le16toh(ver[1]);
1755         if (sc->sc_firmware_type == WI_INTERSIL &&
1756             (sc->sc_sta_firmware_ver == 10102 ||
1757              sc->sc_sta_firmware_ver == 20102)) {
1758                 char ident[12];
1759                 memset(ident, 0, sizeof(ident));
1760                 len = sizeof(ident);
1761                 /* value should be the format like "V2.00-11" */
1762                 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
1763                     *(p = (char *)ident) >= 'A' &&
1764                     p[2] == '.' && p[5] == '-' && p[8] == '\0') {
1765                         sc->sc_firmware_type = WI_SYMBOL;
1766                         sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 +
1767                             (p[3] - '0') * 1000 + (p[4] - '0') * 100 +
1768                             (p[6] - '0') * 10 + (p[7] - '0');
1769                 }
1770         }
1771         printf("\n");
1772         if_printf(&sc->sc_ic.ic_if, "%s Firmware: ",
1773              sc->sc_firmware_type == WI_LUCENT ? "Lucent" :
1774             (sc->sc_firmware_type == WI_SYMBOL ? "Symbol" : "Intersil"));
1775         if (sc->sc_firmware_type != WI_LUCENT)  /* XXX */
1776                 printf("Primary (%u.%u.%u), ",
1777                     sc->sc_pri_firmware_ver / 10000,
1778                     (sc->sc_pri_firmware_ver % 10000) / 100,
1779                     sc->sc_pri_firmware_ver % 100);
1780         printf("Station (%u.%u.%u)\n",
1781             sc->sc_sta_firmware_ver / 10000,
1782             (sc->sc_sta_firmware_ver % 10000) / 100,
1783             sc->sc_sta_firmware_ver % 100);
1784 }
1785
1786 static int
1787 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
1788 {
1789         struct wi_ssid ssid;
1790
1791         if (buflen > IEEE80211_NWID_LEN)
1792                 return ENOBUFS;
1793         memset(&ssid, 0, sizeof(ssid));
1794         ssid.wi_len = htole16(buflen);
1795         memcpy(ssid.wi_ssid, buf, buflen);
1796         return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
1797 }
1798
1799 static int
1800 wi_get_cfg(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1801 {
1802         struct wi_softc *sc = ifp->if_softc;
1803         struct ieee80211com *ic = &sc->sc_ic;
1804         struct ifreq *ifr = (struct ifreq *)data;
1805         struct wi_req wreq;
1806         struct wi_scan_res *res;
1807         size_t reslen;
1808         int len, n, error, mif, val, off, i;
1809
1810         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1811         if (error)
1812                 return error;
1813         len = (wreq.wi_len - 1) * 2;
1814         if (len < sizeof(u_int16_t))
1815                 return ENOSPC;
1816         if (len > sizeof(wreq.wi_val))
1817                 len = sizeof(wreq.wi_val);
1818
1819         switch (wreq.wi_type) {
1820
1821         case WI_RID_IFACE_STATS:
1822                 memcpy(wreq.wi_val, &sc->sc_stats, sizeof(sc->sc_stats));
1823                 if (len < sizeof(sc->sc_stats))
1824                         error = ENOSPC;
1825                 else
1826                         len = sizeof(sc->sc_stats);
1827                 break;
1828
1829         case WI_RID_ENCRYPTION:
1830         case WI_RID_TX_CRYPT_KEY:
1831         case WI_RID_DEFLT_CRYPT_KEYS:
1832         case WI_RID_TX_RATE:
1833                 return ieee80211_cfgget(ic, cmd, data, cr);
1834
1835         case WI_RID_MICROWAVE_OVEN:
1836                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_MOR)) {
1837                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1838                             &len);
1839                         break;
1840                 }
1841                 wreq.wi_val[0] = htole16(sc->sc_microwave_oven);
1842                 len = sizeof(u_int16_t);
1843                 break;
1844
1845         case WI_RID_DBM_ADJUST:
1846                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_DBMADJUST)) {
1847                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1848                             &len);
1849                         break;
1850                 }
1851                 wreq.wi_val[0] = htole16(sc->sc_dbm_offset);
1852                 len = sizeof(u_int16_t);
1853                 break;
1854
1855         case WI_RID_ROAMING_MODE:
1856                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_ROAMING)) {
1857                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1858                             &len);
1859                         break;
1860                 }
1861                 wreq.wi_val[0] = htole16(sc->sc_roaming_mode);
1862                 len = sizeof(u_int16_t);
1863                 break;
1864
1865         case WI_RID_SYSTEM_SCALE:
1866                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)) {
1867                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1868                             &len);
1869                         break;
1870                 }
1871                 wreq.wi_val[0] = htole16(sc->sc_system_scale);
1872                 len = sizeof(u_int16_t);
1873                 break;
1874
1875         case WI_RID_FRAG_THRESH:
1876                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)) {
1877                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1878                             &len);
1879                         break;
1880                 }
1881                 wreq.wi_val[0] = htole16(ic->ic_fragthreshold);
1882                 len = sizeof(u_int16_t);
1883                 break;
1884
1885         case WI_RID_READ_APS:
1886                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1887                         return ieee80211_cfgget(ic, cmd, data, cr);
1888                 if (sc->sc_scan_timer > 0) {
1889                         error = EINPROGRESS;
1890                         break;
1891                 }
1892                 n = sc->sc_naps;
1893                 if (len < sizeof(n)) {
1894                         error = ENOSPC;
1895                         break;
1896                 }
1897                 if (len < sizeof(n) + sizeof(struct wi_apinfo) * n)
1898                         n = (len - sizeof(n)) / sizeof(struct wi_apinfo);
1899                 len = sizeof(n) + sizeof(struct wi_apinfo) * n;
1900                 memcpy(wreq.wi_val, &n, sizeof(n));
1901                 memcpy((caddr_t)wreq.wi_val + sizeof(n), sc->sc_aps,
1902                     sizeof(struct wi_apinfo) * n);
1903                 break;
1904
1905         case WI_RID_PRISM2:
1906                 wreq.wi_val[0] = sc->sc_firmware_type != WI_LUCENT;
1907                 len = sizeof(u_int16_t);
1908                 break;
1909
1910         case WI_RID_MIF:
1911                 mif = wreq.wi_val[0];
1912                 error = wi_cmd(sc, WI_CMD_READMIF, mif, 0, 0);
1913                 val = CSR_READ_2(sc, WI_RESP0);
1914                 wreq.wi_val[0] = val;
1915                 len = sizeof(u_int16_t);
1916                 break;
1917
1918         case WI_RID_ZERO_CACHE:
1919         case WI_RID_PROCFRAME:          /* ignore for compatibility */
1920                 /* XXX ??? */
1921                 break;
1922
1923         case WI_RID_READ_CACHE:
1924                 return ieee80211_cfgget(ic, cmd, data, cr);
1925
1926         case WI_RID_SCAN_RES:           /* compatibility interface */
1927                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1928                         return ieee80211_cfgget(ic, cmd, data, cr);
1929                 if (sc->sc_scan_timer > 0) {
1930                         error = EINPROGRESS;
1931                         break;
1932                 }
1933                 n = sc->sc_naps;
1934                 if (sc->sc_firmware_type == WI_LUCENT) {
1935                         off = 0;
1936                         reslen = WI_WAVELAN_RES_SIZE;
1937                 } else {
1938                         off = sizeof(struct wi_scan_p2_hdr);
1939                         reslen = WI_PRISM2_RES_SIZE;
1940                 }
1941                 if (len < off + reslen * n)
1942                         n = (len - off) / reslen;
1943                 len = off + reslen * n;
1944                 if (off != 0) {
1945                         struct wi_scan_p2_hdr *p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1946                         /*
1947                          * Prepend Prism-specific header.
1948                          */
1949                         if (len < sizeof(struct wi_scan_p2_hdr)) {
1950                                 error = ENOSPC;
1951                                 break;
1952                         }
1953                         p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1954                         p2->wi_rsvd = 0;
1955                         p2->wi_reason = n;      /* XXX */
1956                 }
1957                 for (i = 0; i < n; i++, off += reslen) {
1958                         const struct wi_apinfo *ap = &sc->sc_aps[i];
1959
1960                         res = (struct wi_scan_res *)((char *)wreq.wi_val + off);
1961                         res->wi_chan = ap->channel;
1962                         res->wi_noise = ap->noise;
1963                         res->wi_signal = ap->signal;
1964                         IEEE80211_ADDR_COPY(res->wi_bssid, ap->bssid);
1965                         res->wi_interval = ap->interval;
1966                         res->wi_capinfo = ap->capinfo;
1967                         res->wi_ssid_len = ap->namelen;
1968                         memcpy(res->wi_ssid, ap->name,
1969                                 IEEE80211_NWID_LEN);
1970                         if (sc->sc_firmware_type != WI_LUCENT) {
1971                                 /* XXX not saved from Prism cards */
1972                                 memset(res->wi_srates, 0,
1973                                         sizeof(res->wi_srates));
1974                                 res->wi_rate = ap->rate;
1975                                 res->wi_rsvd = 0;
1976                         }
1977                 }
1978                 break;
1979
1980         default:
1981                 if (sc->sc_enabled) {
1982                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1983                             &len);
1984                         break;
1985                 }
1986                 switch (wreq.wi_type) {
1987                 case WI_RID_MAX_DATALEN:
1988                         wreq.wi_val[0] = htole16(sc->sc_max_datalen);
1989                         len = sizeof(u_int16_t);
1990                         break;
1991                 case WI_RID_RTS_THRESH:
1992                         wreq.wi_val[0] = htole16(ic->ic_rtsthreshold);
1993                         len = sizeof(u_int16_t);
1994                         break;
1995                 case WI_RID_CNFAUTHMODE:
1996                         wreq.wi_val[0] = htole16(sc->sc_cnfauthmode);
1997                         len = sizeof(u_int16_t);
1998                         break;
1999                 case WI_RID_NODENAME:
2000                         if (len < sc->sc_nodelen + sizeof(u_int16_t)) {
2001                                 error = ENOSPC;
2002                                 break;
2003                         }
2004                         len = sc->sc_nodelen + sizeof(u_int16_t);
2005                         wreq.wi_val[0] = htole16((sc->sc_nodelen + 1) / 2);
2006                         memcpy(&wreq.wi_val[1], sc->sc_nodename,
2007                             sc->sc_nodelen);
2008                         break;
2009                 default:
2010                         return ieee80211_cfgget(ic, cmd, data, cr);
2011                 }
2012                 break;
2013         }
2014         if (error)
2015                 return error;
2016         wreq.wi_len = (len + 1) / 2 + 1;
2017         return copyout(&wreq, ifr->ifr_data, (wreq.wi_len + 1) * 2);
2018 }
2019
2020 static int
2021 wi_set_cfg(struct ifnet *ifp, u_long cmd, caddr_t data)
2022 {
2023         struct wi_softc *sc = ifp->if_softc;
2024         struct ieee80211com *ic = &sc->sc_ic;
2025         struct ifreq *ifr = (struct ifreq *)data;
2026         struct wi_req wreq;
2027         struct mbuf *m;
2028         int i, len, error, mif, val;
2029         struct ieee80211_rateset *rs;
2030
2031         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
2032         if (error)
2033                 return error;
2034         len = wreq.wi_len ? (wreq.wi_len - 1) * 2 : 0;
2035         switch (wreq.wi_type) {
2036         case WI_RID_DBM_ADJUST:
2037                 return ENODEV;
2038
2039         case WI_RID_NODENAME:
2040                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2041                     le16toh(wreq.wi_val[0]) > sizeof(sc->sc_nodename)) {
2042                         error = ENOSPC;
2043                         break;
2044                 }
2045                 if (sc->sc_enabled) {
2046                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2047                             len);
2048                         if (error)
2049                                 break;
2050                 }
2051                 sc->sc_nodelen = le16toh(wreq.wi_val[0]) * 2;
2052                 memcpy(sc->sc_nodename, &wreq.wi_val[1], sc->sc_nodelen);
2053                 break;
2054
2055         case WI_RID_MICROWAVE_OVEN:
2056         case WI_RID_ROAMING_MODE:
2057         case WI_RID_SYSTEM_SCALE:
2058         case WI_RID_FRAG_THRESH:
2059                 if (wreq.wi_type == WI_RID_MICROWAVE_OVEN &&
2060                     (sc->sc_flags & WI_FLAGS_HAS_MOR) == 0)
2061                         break;
2062                 if (wreq.wi_type == WI_RID_ROAMING_MODE &&
2063                     (sc->sc_flags & WI_FLAGS_HAS_ROAMING) == 0)
2064                         break;
2065                 if (wreq.wi_type == WI_RID_SYSTEM_SCALE &&
2066                     (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) == 0)
2067                         break;
2068                 if (wreq.wi_type == WI_RID_FRAG_THRESH &&
2069                     (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) == 0)
2070                         break;
2071                 /* FALLTHROUGH */
2072         case WI_RID_RTS_THRESH:
2073         case WI_RID_CNFAUTHMODE:
2074         case WI_RID_MAX_DATALEN:
2075                 if (sc->sc_enabled) {
2076                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2077                             sizeof(u_int16_t));
2078                         if (error)
2079                                 break;
2080                 }
2081                 switch (wreq.wi_type) {
2082                 case WI_RID_FRAG_THRESH:
2083                         ic->ic_fragthreshold = le16toh(wreq.wi_val[0]);
2084                         break;
2085                 case WI_RID_RTS_THRESH:
2086                         ic->ic_rtsthreshold = le16toh(wreq.wi_val[0]);
2087                         break;
2088                 case WI_RID_MICROWAVE_OVEN:
2089                         sc->sc_microwave_oven = le16toh(wreq.wi_val[0]);
2090                         break;
2091                 case WI_RID_ROAMING_MODE:
2092                         sc->sc_roaming_mode = le16toh(wreq.wi_val[0]);
2093                         break;
2094                 case WI_RID_SYSTEM_SCALE:
2095                         sc->sc_system_scale = le16toh(wreq.wi_val[0]);
2096                         break;
2097                 case WI_RID_CNFAUTHMODE:
2098                         sc->sc_cnfauthmode = le16toh(wreq.wi_val[0]);
2099                         break;
2100                 case WI_RID_MAX_DATALEN:
2101                         sc->sc_max_datalen = le16toh(wreq.wi_val[0]);
2102                         break;
2103                 }
2104                 break;
2105
2106         case WI_RID_TX_RATE:
2107                 switch (le16toh(wreq.wi_val[0])) {
2108                 case 3:
2109                         ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE;
2110                         break;
2111                 default:
2112                         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
2113                         for (i = 0; i < rs->rs_nrates; i++) {
2114                                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL)
2115                                     / 2 == le16toh(wreq.wi_val[0]))
2116                                         break;
2117                         }
2118                         if (i == rs->rs_nrates)
2119                                 return EINVAL;
2120                         ic->ic_fixed_rate = i;
2121                 }
2122                 if (sc->sc_enabled)
2123                         error = wi_write_txrate(sc);
2124                 break;
2125
2126         case WI_RID_SCAN_APS:
2127                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2128                         error = wi_scan_ap(sc, 0x3fff, 0x000f);
2129                 break;
2130
2131         case WI_RID_SCAN_REQ:           /* compatibility interface */
2132                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2133                         error = wi_scan_ap(sc, wreq.wi_val[0], wreq.wi_val[1]);
2134                 break;
2135
2136         case WI_RID_MGMT_XMIT:
2137                 if (!sc->sc_enabled) {
2138                         error = ENETDOWN;
2139                         break;
2140                 }
2141                 if (ic->ic_mgtq.ifq_len > 5) {
2142                         error = EAGAIN;
2143                         break;
2144                 }
2145                 /* XXX wi_len looks in u_int8_t, not in u_int16_t */
2146                 m = m_devget((char *)&wreq.wi_val, wreq.wi_len, 0, ifp, NULL);
2147                 if (m == NULL) {
2148                         error = ENOMEM;
2149                         break;
2150                 }
2151                 IF_ENQUEUE(&ic->ic_mgtq, m);
2152                 break;
2153
2154         case WI_RID_MIF:
2155                 mif = wreq.wi_val[0];
2156                 val = wreq.wi_val[1];
2157                 error = wi_cmd(sc, WI_CMD_WRITEMIF, mif, val, 0);
2158                 break;
2159
2160         case WI_RID_PROCFRAME:          /* ignore for compatibility */
2161                 break;
2162
2163         case WI_RID_OWN_SSID:
2164                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2165                     le16toh(wreq.wi_val[0]) > IEEE80211_NWID_LEN) {
2166                         error = ENOSPC;
2167                         break;
2168                 }
2169                 memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
2170                 ic->ic_des_esslen = le16toh(wreq.wi_val[0]) * 2;
2171                 memcpy(ic->ic_des_essid, &wreq.wi_val[1], ic->ic_des_esslen);
2172                 error = ENETRESET;
2173                 break;
2174
2175         default:
2176                 if (sc->sc_enabled) {
2177                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2178                             len);
2179                         if (error)
2180                                 break;
2181                 }
2182                 error = ieee80211_cfgset(ic, cmd, data);
2183                 break;
2184         }
2185         return error;
2186 }
2187
2188 static int
2189 wi_write_txrate(struct wi_softc *sc)
2190 {
2191         struct ieee80211com *ic = &sc->sc_ic;
2192         int i;
2193         u_int16_t rate;
2194
2195         if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE)
2196                 rate = 0;       /* auto */
2197         else
2198                 rate = (ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ic->ic_fixed_rate] &
2199                     IEEE80211_RATE_VAL) / 2;
2200
2201         /* rate: 0, 1, 2, 5, 11 */
2202
2203         switch (sc->sc_firmware_type) {
2204         case WI_LUCENT:
2205                 switch (rate) {
2206                 case 0:                 /* auto == 11mbps auto */
2207                         rate = 3;
2208                         break;
2209                 /* case 1, 2 map to 1, 2*/
2210                 case 5:                 /* 5.5Mbps -> 4 */
2211                         rate = 4;
2212                         break;
2213                 case 11:                /* 11mbps -> 5 */
2214                         rate = 5;
2215                         break;
2216                 default:
2217                         break;
2218                 }
2219                 break;
2220         default:
2221                 /* Choose a bit according to this table.
2222                  *
2223                  * bit | data rate
2224                  * ----+-------------------
2225                  * 0   | 1Mbps
2226                  * 1   | 2Mbps
2227                  * 2   | 5.5Mbps
2228                  * 3   | 11Mbps
2229                  */
2230                 for (i = 8; i > 0; i >>= 1) {
2231                         if (rate >= i)
2232                                 break;
2233                 }
2234                 if (i == 0)
2235                         rate = 0xf;     /* auto */
2236                 else
2237                         rate = i;
2238                 break;
2239         }
2240         return wi_write_val(sc, WI_RID_TX_RATE, rate);
2241 }
2242
2243 static int
2244 wi_key_alloc(struct ieee80211com *ic, const struct ieee80211_key *k,
2245         ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
2246 {
2247         struct wi_softc *sc = ic->ic_ifp->if_softc;
2248
2249         /*
2250          * When doing host encryption of outbound frames fail requests
2251          * for keys that are not marked w/ the SWCRYPT flag so the
2252          * net80211 layer falls back to s/w crypto.  Note that we also
2253          * fixup existing keys below to handle mode changes.
2254          */
2255         if ((sc->sc_encryption & HOST_ENCRYPT) &&
2256             (k->wk_flags & IEEE80211_KEY_SWCRYPT) == 0)
2257                 return 0;
2258         return sc->sc_key_alloc(ic, k, keyix, rxkeyix);
2259 }
2260
2261 static int
2262 wi_write_wep(struct wi_softc *sc)
2263 {
2264         struct ieee80211com *ic = &sc->sc_ic;
2265         int error = 0;
2266         int i, keylen;
2267         u_int16_t val;
2268         struct wi_key wkey[IEEE80211_WEP_NKID];
2269
2270         switch (sc->sc_firmware_type) {
2271         case WI_LUCENT:
2272                 val = (ic->ic_flags & IEEE80211_F_PRIVACY) ? 1 : 0;
2273                 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
2274                 if (error)
2275                         break;
2276                 if (!(ic->ic_flags & IEEE80211_F_PRIVACY))
2277                         break;
2278                 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, ic->ic_def_txkey);
2279                 if (error)
2280                         break;
2281                 memset(wkey, 0, sizeof(wkey));
2282                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2283                         keylen = ic->ic_nw_keys[i].wk_keylen;
2284                         wkey[i].wi_keylen = htole16(keylen);
2285                         memcpy(wkey[i].wi_keydat, ic->ic_nw_keys[i].wk_key,
2286                             keylen);
2287                 }
2288                 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
2289                     wkey, sizeof(wkey));
2290                 sc->sc_encryption = 0;
2291                 break;
2292
2293         case WI_INTERSIL:
2294         case WI_SYMBOL:
2295                 if (ic->ic_flags & IEEE80211_F_PRIVACY) {
2296                         /*
2297                          * ONLY HWB3163 EVAL-CARD Firmware version
2298                          * less than 0.8 variant2
2299                          *
2300                          *   If promiscuous mode disable, Prism2 chip
2301                          *  does not work with WEP .
2302                          * It is under investigation for details.
2303                          * (ichiro@netbsd.org)
2304                          */
2305                         if (sc->sc_firmware_type == WI_INTERSIL &&
2306                             sc->sc_sta_firmware_ver < 802 ) {
2307                                 /* firm ver < 0.8 variant 2 */
2308                                 wi_write_val(sc, WI_RID_PROMISC, 1);
2309                         }
2310                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2311                             sc->sc_cnfauthmode);
2312                         /* XXX should honor IEEE80211_F_DROPUNENC */
2313                         val = PRIVACY_INVOKED | EXCLUDE_UNENCRYPTED;
2314                         /*
2315                          * Encryption firmware has a bug for HostAP mode.
2316                          */
2317                         if (sc->sc_firmware_type == WI_INTERSIL &&
2318                             ic->ic_opmode == IEEE80211_M_HOSTAP)
2319                                 val |= HOST_ENCRYPT;
2320                 } else {
2321                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2322                             IEEE80211_AUTH_OPEN);
2323                         val = HOST_ENCRYPT | HOST_DECRYPT;
2324                 }
2325                 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
2326                 if (error)
2327                         break;
2328                 sc->sc_encryption = val;
2329                 if ((val & PRIVACY_INVOKED) == 0)
2330                         break;
2331                 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY,
2332                     ic->ic_def_txkey);
2333                 if (error)
2334                         break;
2335                 if (val & HOST_DECRYPT)
2336                         break;
2337                 /*
2338                  * It seems that the firmware accept 104bit key only if
2339                  * all the keys have 104bit length.  We get the length of
2340                  * the transmit key and use it for all other keys.
2341                  * Perhaps we should use software WEP for such situation.
2342                  */
2343                 if (ic->ic_def_txkey != IEEE80211_KEYIX_NONE)
2344                         keylen = ic->ic_nw_keys[ic->ic_def_txkey].wk_keylen;
2345                 else    /* XXX should not hapen */
2346                         keylen = IEEE80211_WEP_KEYLEN;
2347                 if (keylen > IEEE80211_WEP_KEYLEN)
2348                         keylen = 13;    /* 104bit keys */
2349                 else
2350                         keylen = IEEE80211_WEP_KEYLEN;
2351                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2352                         error = wi_write_rid(sc, WI_RID_P2_CRYPT_KEY0 + i,
2353                             ic->ic_nw_keys[i].wk_key, keylen);
2354                         if (error)
2355                                 break;
2356                 }
2357                 break;
2358         }
2359         /*
2360          * XXX horrible hack; insure pre-existing keys are
2361          * setup properly to do s/w crypto.
2362          */
2363         for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2364                 struct ieee80211_key *k = &ic->ic_nw_keys[i];
2365                 if (k->wk_flags & IEEE80211_KEY_XMIT) {
2366                         if (sc->sc_encryption & HOST_ENCRYPT)
2367                                 k->wk_flags |= IEEE80211_KEY_SWCRYPT;
2368                         else
2369                                 k->wk_flags &= ~IEEE80211_KEY_SWCRYPT;
2370                 }
2371         }
2372         return error;
2373 }
2374
2375 static int
2376 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
2377 {
2378         int                     i, s = 0;
2379
2380         if (sc->wi_gone)
2381                 return (ENODEV);
2382
2383         /* wait for the busy bit to clear */
2384         for (i = sc->wi_cmd_count; i > 0; i--) {        /* 500ms */
2385                 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
2386                         break;
2387                 DELAY(1*1000);  /* 1ms */
2388         }
2389         if (i == 0) {
2390                 if_printf(&sc->sc_ic.ic_if, "wi_cmd: busy bit won't clear.\n" );
2391                 sc->wi_gone = 1;
2392                 return(ETIMEDOUT);
2393         }
2394
2395         CSR_WRITE_2(sc, WI_PARAM0, val0);
2396         CSR_WRITE_2(sc, WI_PARAM1, val1);
2397         CSR_WRITE_2(sc, WI_PARAM2, val2);
2398         CSR_WRITE_2(sc, WI_COMMAND, cmd);
2399
2400         if (cmd == WI_CMD_INI) {
2401                 /* XXX: should sleep here. */
2402                 DELAY(100*1000);                /* 100ms delay for init */
2403         }
2404         for (i = 0; i < WI_TIMEOUT; i++) {
2405                 /*
2406                  * Wait for 'command complete' bit to be
2407                  * set in the event status register.
2408                  */
2409                 s = CSR_READ_2(sc, WI_EVENT_STAT);
2410                 if (s & WI_EV_CMD) {
2411                         /* Ack the event and read result code. */
2412                         s = CSR_READ_2(sc, WI_STATUS);
2413                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
2414                         if (s & WI_STAT_CMD_RESULT) {
2415                                 return(EIO);
2416                         }
2417                         break;
2418                 }
2419                 DELAY(WI_DELAY);
2420         }
2421
2422         if (i == WI_TIMEOUT) {
2423                 if_printf(&sc->sc_ic.ic_if,
2424                     "timeout in wi_cmd 0x%04x; event status 0x%04x\n", cmd, s);
2425                 if (s == 0xffff)
2426                         sc->wi_gone = 1;
2427                 return(ETIMEDOUT);
2428         }
2429         return (0);
2430 }
2431
2432 static int
2433 wi_seek_bap(struct wi_softc *sc, int id, int off)
2434 {
2435         int i, status;
2436
2437         CSR_WRITE_2(sc, WI_SEL0, id);
2438         CSR_WRITE_2(sc, WI_OFF0, off);
2439
2440         for (i = 0; ; i++) {
2441                 status = CSR_READ_2(sc, WI_OFF0);
2442                 if ((status & WI_OFF_BUSY) == 0)
2443                         break;
2444                 if (i == WI_TIMEOUT) {
2445                         if_printf(&sc->sc_ic.ic_if,
2446                                   "timeout in wi_seek to %x/%x\n", id, off);
2447                         sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2448                         if (status == 0xffff)
2449                                 sc->wi_gone = 1;
2450                         return ETIMEDOUT;
2451                 }
2452                 DELAY(1);
2453         }
2454         if (status & WI_OFF_ERR) {
2455                 if_printf(&sc->sc_ic.ic_if, "failed in wi_seek to %x/%x\n",
2456                           id, off);
2457                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2458                 return EIO;
2459         }
2460         sc->sc_bap_id = id;
2461         sc->sc_bap_off = off;
2462         return 0;
2463 }
2464
2465 static int
2466 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2467 {
2468         u_int16_t *ptr;
2469         int i, error, cnt;
2470
2471         if (buflen == 0)
2472                 return 0;
2473         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2474                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2475                         return error;
2476         }
2477         cnt = (buflen + 1) / 2;
2478         ptr = (u_int16_t *)buf;
2479         for (i = 0; i < cnt; i++)
2480                 *ptr++ = CSR_READ_2(sc, WI_DATA0);
2481         sc->sc_bap_off += cnt * 2;
2482         return 0;
2483 }
2484
2485 static int
2486 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2487 {
2488         u_int16_t *ptr;
2489         int i, error, cnt;
2490
2491         if (buflen == 0)
2492                 return 0;
2493
2494 #ifdef WI_HERMES_AUTOINC_WAR
2495   again:
2496 #endif
2497         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2498                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2499                         return error;
2500         }
2501         cnt = (buflen + 1) / 2;
2502         ptr = (u_int16_t *)buf;
2503         for (i = 0; i < cnt; i++)
2504                 CSR_WRITE_2(sc, WI_DATA0, ptr[i]);
2505         sc->sc_bap_off += cnt * 2;
2506
2507 #ifdef WI_HERMES_AUTOINC_WAR
2508         /*
2509          * According to the comments in the HCF Light code, there is a bug
2510          * in the Hermes (or possibly in certain Hermes firmware revisions)
2511          * where the chip's internal autoincrement counter gets thrown off
2512          * during data writes:  the autoincrement is missed, causing one
2513          * data word to be overwritten and subsequent words to be written to
2514          * the wrong memory locations. The end result is that we could end
2515          * up transmitting bogus frames without realizing it. The workaround
2516          * for this is to write a couple of extra guard words after the end
2517          * of the transfer, then attempt to read then back. If we fail to
2518          * locate the guard words where we expect them, we preform the
2519          * transfer over again.
2520          */
2521         if ((sc->sc_flags & WI_FLAGS_BUG_AUTOINC) && (id & 0xf000) == 0) {
2522                 CSR_WRITE_2(sc, WI_DATA0, 0x1234);
2523                 CSR_WRITE_2(sc, WI_DATA0, 0x5678);
2524                 wi_seek_bap(sc, id, sc->sc_bap_off);
2525                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2526                 if (CSR_READ_2(sc, WI_DATA0) != 0x1234 ||
2527                     CSR_READ_2(sc, WI_DATA0) != 0x5678) {
2528                         if_printf(&sc->sc_ic.ic_if,
2529                                   "detect auto increment bug, try again\n");
2530                         goto again;
2531                 }
2532         }
2533 #endif
2534         return 0;
2535 }
2536
2537 static int
2538 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
2539 {
2540         int error, len;
2541         struct mbuf *m;
2542
2543         for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
2544                 if (m->m_len == 0)
2545                         continue;
2546
2547                 len = min(m->m_len, totlen);
2548
2549                 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
2550                         m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
2551                         return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
2552                             totlen);
2553                 }
2554
2555                 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
2556                         return error;
2557
2558                 off += m->m_len;
2559                 totlen -= len;
2560         }
2561         return 0;
2562 }
2563
2564 static int
2565 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
2566 {
2567         int i;
2568
2569         if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
2570                 if_printf(&sc->sc_ic.ic_if,
2571                           "failed to allocate %d bytes on NIC\n", len);
2572                 return ENOMEM;
2573         }
2574
2575         for (i = 0; i < WI_TIMEOUT; i++) {
2576                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
2577                         break;
2578                 DELAY(1);
2579         }
2580         if (i == WI_TIMEOUT) {
2581                 if_printf(&sc->sc_ic.ic_if, "timeout in alloc\n");
2582                 return ETIMEDOUT;
2583         }
2584         *idp = CSR_READ_2(sc, WI_ALLOC_FID);
2585         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
2586         return 0;
2587 }
2588
2589 static int
2590 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
2591 {
2592         int error, len;
2593         u_int16_t ltbuf[2];
2594
2595         /* Tell the NIC to enter record read mode. */
2596         error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
2597         if (error)
2598                 return error;
2599
2600         error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2601         if (error)
2602                 return error;
2603
2604         if (le16toh(ltbuf[1]) != rid) {
2605                 if_printf(&sc->sc_ic.ic_if,
2606                           "record read mismatch, rid=%x, got=%x\n",
2607                           rid, le16toh(ltbuf[1]));
2608                 return EIO;
2609         }
2610         len = (le16toh(ltbuf[0]) - 1) * 2;       /* already got rid */
2611         if (*buflenp < len) {
2612                 if_printf(&sc->sc_ic.ic_if, "record buffer is too small, "
2613                           "rid=%x, size=%d, len=%d\n", rid, *buflenp, len);
2614                 return ENOSPC;
2615         }
2616         *buflenp = len;
2617         return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
2618 }
2619
2620 static int
2621 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen)
2622 {
2623         int error;
2624         u_int16_t ltbuf[2];
2625
2626         ltbuf[0] = htole16((buflen + 1) / 2 + 1);        /* includes rid */
2627         ltbuf[1] = htole16(rid);
2628
2629         error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2630         if (error)
2631                 return error;
2632         error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
2633         if (error)
2634                 return error;
2635
2636         return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
2637 }
2638
2639 static int
2640 wi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
2641 {
2642         struct ifnet *ifp = &ic->ic_if;
2643         struct wi_softc *sc = ifp->if_softc;
2644         struct ieee80211_node *ni = ic->ic_bss;
2645         int buflen;
2646         u_int16_t val;
2647         struct wi_ssid ssid;
2648         u_int8_t old_bssid[IEEE80211_ADDR_LEN];
2649
2650         DPRINTF((ifp, "%s: %s -> %s\n", __func__,
2651                 ieee80211_state_name[ic->ic_state],
2652                 ieee80211_state_name[nstate]));
2653
2654         /*
2655          * Internal to the driver the INIT and RUN states are used
2656          * so bypass the net80211 state machine for other states.
2657          * Beware however that this requires use to net80211 state
2658          * management that otherwise would be handled for us.
2659          */
2660         switch (nstate) {
2661         case IEEE80211_S_INIT:
2662                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2663                 return sc->sc_newstate(ic, nstate, arg);
2664
2665         case IEEE80211_S_RUN:
2666                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2667                 buflen = IEEE80211_ADDR_LEN;
2668                 IEEE80211_ADDR_COPY(old_bssid, ni->ni_bssid);
2669                 wi_read_rid(sc, WI_RID_CURRENT_BSSID, ni->ni_bssid, &buflen);
2670                 IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid);
2671                 buflen = sizeof(val);
2672                 wi_read_rid(sc, WI_RID_CURRENT_CHAN, &val, &buflen);
2673                 /* XXX validate channel */
2674                 ni->ni_chan = &ic->ic_channels[le16toh(val)];
2675                 ic->ic_curchan = ni->ni_chan;
2676                 ic->ic_ibss_chan = ni->ni_chan;
2677
2678                 sc->sc_tx_th.wt_chan_freq = sc->sc_rx_th.wr_chan_freq =
2679                         htole16(ni->ni_chan->ic_freq);
2680                 sc->sc_tx_th.wt_chan_flags = sc->sc_rx_th.wr_chan_flags =
2681                         htole16(ni->ni_chan->ic_flags);
2682
2683                 /*
2684                  * XXX hack; unceremoniously clear
2685                  * IEEE80211_F_DROPUNENC when operating with
2686                  * wep enabled so we don't drop unencoded frames
2687                  * at the 802.11 layer.  This is necessary because
2688                  * we must strip the WEP bit from the 802.11 header
2689                  * before passing frames to ieee80211_input because
2690                  * the card has already stripped the WEP crypto
2691                  * header from the packet.
2692                  */
2693                 if (ic->ic_flags & IEEE80211_F_PRIVACY)
2694                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
2695                 if (ic->ic_opmode != IEEE80211_M_HOSTAP) {
2696                         /* XXX check return value */
2697                         buflen = sizeof(ssid);
2698                         wi_read_rid(sc, WI_RID_CURRENT_SSID, &ssid, &buflen);
2699                         ni->ni_esslen = le16toh(ssid.wi_len);
2700                         if (ni->ni_esslen > IEEE80211_NWID_LEN)
2701                                 ni->ni_esslen = IEEE80211_NWID_LEN;     /*XXX*/
2702                         memcpy(ni->ni_essid, ssid.wi_ssid, ni->ni_esslen);
2703                 }
2704                 return sc->sc_newstate(ic, nstate, arg);
2705
2706         case IEEE80211_S_SCAN:
2707         case IEEE80211_S_AUTH:
2708         case IEEE80211_S_ASSOC:
2709                 break;
2710         }
2711
2712         ic->ic_state = nstate;          /* NB: skip normal ieee80211 handling */
2713         return 0;
2714 }
2715
2716 static int
2717 wi_scan_ap(struct wi_softc *sc, u_int16_t chanmask, u_int16_t txrate)
2718 {
2719         int error = 0;
2720         u_int16_t val[2];
2721
2722         if (!sc->sc_enabled)
2723                 return ENXIO;
2724         switch (sc->sc_firmware_type) {
2725         case WI_LUCENT:
2726                 wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
2727                 break;
2728         case WI_INTERSIL:
2729                 val[0] = htole16(chanmask);     /* channel */
2730                 val[1] = htole16(txrate);       /* tx rate */
2731                 error = wi_write_rid(sc, WI_RID_SCAN_REQ, val, sizeof(val));
2732                 break;
2733         case WI_SYMBOL:
2734                 /*
2735                  * XXX only supported on 3.x ?
2736                  */
2737                 val[0] = BSCAN_BCAST | BSCAN_ONETIME;
2738                 error = wi_write_rid(sc, WI_RID_BCAST_SCAN_REQ,
2739                     val, sizeof(val[0]));
2740                 break;
2741         }
2742         if (error == 0) {
2743                 sc->sc_scan_timer = WI_SCAN_WAIT;
2744                 sc->sc_ic.ic_if.if_timer = 1;
2745                 DPRINTF((&sc->sc_ic.ic_if, "wi_scan_ap: start scanning, "
2746                         "chamask 0x%x txrate 0x%x\n", chanmask, txrate));
2747         }
2748         return error;
2749 }
2750
2751 static void
2752 wi_scan_result(struct wi_softc *sc, int fid, int cnt)
2753 {
2754 #define N(a)    (sizeof (a) / sizeof (a[0]))
2755         int i, naps, off, szbuf;
2756         struct wi_scan_header ws_hdr;   /* Prism2 header */
2757         struct wi_scan_data_p2 ws_dat;  /* Prism2 scantable*/
2758         struct wi_apinfo *ap;
2759
2760         off = sizeof(u_int16_t) * 2;
2761         memset(&ws_hdr, 0, sizeof(ws_hdr));
2762         switch (sc->sc_firmware_type) {
2763         case WI_INTERSIL:
2764                 wi_read_bap(sc, fid, off, &ws_hdr, sizeof(ws_hdr));
2765                 off += sizeof(ws_hdr);
2766                 szbuf = sizeof(struct wi_scan_data_p2);
2767                 break;
2768         case WI_SYMBOL:
2769                 szbuf = sizeof(struct wi_scan_data_p2) + 6;
2770                 break;
2771         case WI_LUCENT:
2772                 szbuf = sizeof(struct wi_scan_data);
2773                 break;
2774         default:
2775                 if_printf(&sc->sc_ic.ic_if,
2776                           "wi_scan_result: unknown firmware type %u\n",
2777                           sc->sc_firmware_type);
2778                 naps = 0;
2779                 goto done;
2780         }
2781         naps = (cnt * 2 + 2 - off) / szbuf;
2782         if (naps > N(sc->sc_aps))
2783                 naps = N(sc->sc_aps);
2784         sc->sc_naps = naps;
2785         /* Read Data */
2786         ap = sc->sc_aps;
2787         memset(&ws_dat, 0, sizeof(ws_dat));
2788         for (i = 0; i < naps; i++, ap++) {
2789                 wi_read_bap(sc, fid, off, &ws_dat,
2790                     (sizeof(ws_dat) < szbuf ? sizeof(ws_dat) : szbuf));
2791                 DPRINTF2((&sc->sc_ic.ic_if,
2792                           "wi_scan_result: #%d: off %d bssid %6D\n",
2793                           i, off, ws_dat.wi_bssid, ":"));
2794                 off += szbuf;
2795                 ap->scanreason = le16toh(ws_hdr.wi_reason);
2796                 memcpy(ap->bssid, ws_dat.wi_bssid, sizeof(ap->bssid));
2797                 ap->channel = le16toh(ws_dat.wi_chid);
2798                 ap->signal  = le16toh(ws_dat.wi_signal);
2799                 ap->noise   = le16toh(ws_dat.wi_noise);
2800                 ap->quality = ap->signal - ap->noise;
2801                 ap->capinfo = le16toh(ws_dat.wi_capinfo);
2802                 ap->interval = le16toh(ws_dat.wi_interval);
2803                 ap->rate    = le16toh(ws_dat.wi_rate);
2804                 ap->namelen = le16toh(ws_dat.wi_namelen);
2805                 if (ap->namelen > sizeof(ap->name))
2806                         ap->namelen = sizeof(ap->name);
2807                 memcpy(ap->name, ws_dat.wi_name, ap->namelen);
2808         }
2809 done:
2810         /* Done scanning */
2811         sc->sc_scan_timer = 0;
2812         DPRINTF((&sc->sc_ic.ic_if, "wi_scan_result: scan complete: ap %d\n",
2813                  naps));
2814 #undef N
2815 }
2816
2817 static void
2818 wi_dump_pkt(struct wi_frame *wh, struct ieee80211_node *ni, int rssi)
2819 {
2820         ieee80211_dump_pkt((u_int8_t *) &wh->wi_whdr, sizeof(wh->wi_whdr),
2821             ni ? ni->ni_rates.rs_rates[ni->ni_txrate] & IEEE80211_RATE_VAL : -1, rssi);
2822         printf(" status 0x%x rx_tstamp1 %u rx_tstamp0 0x%u rx_silence %u\n",
2823                 le16toh(wh->wi_status), le16toh(wh->wi_rx_tstamp1),
2824                 le16toh(wh->wi_rx_tstamp0), wh->wi_rx_silence);
2825         printf(" rx_signal %u rx_rate %u rx_flow %u\n",
2826                 wh->wi_rx_signal, wh->wi_rx_rate, wh->wi_rx_flow);
2827         printf(" tx_rtry %u tx_rate %u tx_ctl 0x%x dat_len %u\n",
2828                 wh->wi_tx_rtry, wh->wi_tx_rate,
2829                 le16toh(wh->wi_tx_ctl), le16toh(wh->wi_dat_len));
2830         printf(" ehdr dst %6D src %6D type 0x%x\n",
2831                 wh->wi_ehdr.ether_dhost, ":", wh->wi_ehdr.ether_shost, ":",
2832                 wh->wi_ehdr.ether_type);
2833 }
2834
2835 int
2836 wi_alloc(device_t dev, int rid)
2837 {
2838         struct wi_softc *sc = device_get_softc(dev);
2839
2840         if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
2841                 sc->iobase_rid = rid;
2842                 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
2843                     &sc->iobase_rid, 0, ~0, (1 << 6),
2844                     rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
2845                 if (!sc->iobase) {
2846                         device_printf(dev, "No I/O space?!\n");
2847                         return (ENXIO);
2848                 }
2849
2850                 sc->wi_io_addr = rman_get_start(sc->iobase);
2851                 sc->wi_btag = rman_get_bustag(sc->iobase);
2852                 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
2853         } else {
2854                 sc->mem_rid = rid;
2855                 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
2856                     &sc->mem_rid, RF_ACTIVE);
2857
2858                 if (!sc->mem) {
2859                         device_printf(dev, "No Mem space on prism2.5?\n");
2860                         return (ENXIO);
2861                 }
2862
2863                 sc->wi_btag = rman_get_bustag(sc->mem);
2864                 sc->wi_bhandle = rman_get_bushandle(sc->mem);
2865         }
2866
2867
2868         sc->irq_rid = 0;
2869         sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
2870             RF_ACTIVE |
2871             ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
2872
2873         if (!sc->irq) {
2874                 wi_free(dev);
2875                 device_printf(dev, "No irq?!\n");
2876                 return (ENXIO);
2877         }
2878
2879         return (0);
2880 }
2881
2882 void
2883 wi_free(device_t dev)
2884 {
2885         struct wi_softc *sc = device_get_softc(dev);
2886
2887         if (sc->iobase != NULL) {
2888                 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
2889                 sc->iobase = NULL;
2890         }
2891         if (sc->irq != NULL) {
2892                 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
2893                 sc->irq = NULL;
2894         }
2895         if (sc->mem != NULL) {
2896                 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
2897                 sc->mem = NULL;
2898         }
2899 }
2900
2901 static int
2902 wi_get_debug(struct wi_softc *sc, struct wi_req *wreq)
2903 {
2904         int error = 0;
2905
2906         wreq->wi_len = 1;
2907
2908         switch (wreq->wi_type) {
2909         case WI_DEBUG_SLEEP:
2910                 wreq->wi_len++;
2911                 wreq->wi_val[0] = sc->wi_debug.wi_sleep;
2912                 break;
2913         case WI_DEBUG_DELAYSUPP:
2914                 wreq->wi_len++;
2915                 wreq->wi_val[0] = sc->wi_debug.wi_delaysupp;
2916                 break;
2917         case WI_DEBUG_TXSUPP:
2918                 wreq->wi_len++;
2919                 wreq->wi_val[0] = sc->wi_debug.wi_txsupp;
2920                 break;
2921         case WI_DEBUG_MONITOR:
2922                 wreq->wi_len++;
2923                 wreq->wi_val[0] = sc->wi_debug.wi_monitor;
2924                 break;
2925         case WI_DEBUG_LEDTEST:
2926                 wreq->wi_len += 3;
2927                 wreq->wi_val[0] = sc->wi_debug.wi_ledtest;
2928                 wreq->wi_val[1] = sc->wi_debug.wi_ledtest_param0;
2929                 wreq->wi_val[2] = sc->wi_debug.wi_ledtest_param1;
2930                 break;
2931         case WI_DEBUG_CONTTX:
2932                 wreq->wi_len += 2;
2933                 wreq->wi_val[0] = sc->wi_debug.wi_conttx;
2934                 wreq->wi_val[1] = sc->wi_debug.wi_conttx_param0;
2935                 break;
2936         case WI_DEBUG_CONTRX:
2937                 wreq->wi_len++;
2938                 wreq->wi_val[0] = sc->wi_debug.wi_contrx;
2939                 break;
2940         case WI_DEBUG_SIGSTATE:
2941                 wreq->wi_len += 2;
2942                 wreq->wi_val[0] = sc->wi_debug.wi_sigstate;
2943                 wreq->wi_val[1] = sc->wi_debug.wi_sigstate_param0;
2944                 break;
2945         case WI_DEBUG_CONFBITS:
2946                 wreq->wi_len += 2;
2947                 wreq->wi_val[0] = sc->wi_debug.wi_confbits;
2948                 wreq->wi_val[1] = sc->wi_debug.wi_confbits_param0;
2949                 break;
2950         default:
2951                 error = EIO;
2952                 break;
2953         }
2954
2955         return (error);
2956 }
2957
2958 static int
2959 wi_set_debug(struct wi_softc *sc, struct wi_req *wreq)
2960 {
2961         int error = 0;
2962         u_int16_t               cmd, param0 = 0, param1 = 0;
2963
2964         switch (wreq->wi_type) {
2965         case WI_DEBUG_RESET:
2966         case WI_DEBUG_INIT:
2967         case WI_DEBUG_CALENABLE:
2968                 break;
2969         case WI_DEBUG_SLEEP:
2970                 sc->wi_debug.wi_sleep = 1;
2971                 break;
2972         case WI_DEBUG_WAKE:
2973                 sc->wi_debug.wi_sleep = 0;
2974                 break;
2975         case WI_DEBUG_CHAN:
2976                 param0 = wreq->wi_val[0];
2977                 break;
2978         case WI_DEBUG_DELAYSUPP:
2979                 sc->wi_debug.wi_delaysupp = 1;
2980                 break;
2981         case WI_DEBUG_TXSUPP:
2982                 sc->wi_debug.wi_txsupp = 1;
2983                 break;
2984         case WI_DEBUG_MONITOR:
2985                 sc->wi_debug.wi_monitor = 1;
2986                 break;
2987         case WI_DEBUG_LEDTEST:
2988                 param0 = wreq->wi_val[0];
2989                 param1 = wreq->wi_val[1];
2990                 sc->wi_debug.wi_ledtest = 1;
2991                 sc->wi_debug.wi_ledtest_param0 = param0;
2992                 sc->wi_debug.wi_ledtest_param1 = param1;
2993                 break;
2994         case WI_DEBUG_CONTTX:
2995                 param0 = wreq->wi_val[0];
2996                 sc->wi_debug.wi_conttx = 1;
2997                 sc->wi_debug.wi_conttx_param0 = param0;
2998                 break;
2999         case WI_DEBUG_STOPTEST:
3000                 sc->wi_debug.wi_delaysupp = 0;
3001                 sc->wi_debug.wi_txsupp = 0;
3002                 sc->wi_debug.wi_monitor = 0;
3003                 sc->wi_debug.wi_ledtest = 0;
3004                 sc->wi_debug.wi_ledtest_param0 = 0;
3005                 sc->wi_debug.wi_ledtest_param1 = 0;
3006                 sc->wi_debug.wi_conttx = 0;
3007                 sc->wi_debug.wi_conttx_param0 = 0;
3008                 sc->wi_debug.wi_contrx = 0;
3009                 sc->wi_debug.wi_sigstate = 0;
3010                 sc->wi_debug.wi_sigstate_param0 = 0;
3011                 break;
3012         case WI_DEBUG_CONTRX:
3013                 sc->wi_debug.wi_contrx = 1;
3014                 break;
3015         case WI_DEBUG_SIGSTATE:
3016                 param0 = wreq->wi_val[0];
3017                 sc->wi_debug.wi_sigstate = 1;
3018                 sc->wi_debug.wi_sigstate_param0 = param0;
3019                 break;
3020         case WI_DEBUG_CONFBITS:
3021                 param0 = wreq->wi_val[0];
3022                 param1 = wreq->wi_val[1];
3023                 sc->wi_debug.wi_confbits = param0;
3024                 sc->wi_debug.wi_confbits_param0 = param1;
3025                 break;
3026         default:
3027                 error = EIO;
3028                 break;
3029         }
3030
3031         if (error)
3032                 return (error);
3033
3034         cmd = WI_CMD_DEBUG | (wreq->wi_type << 8);
3035         error = wi_cmd(sc, cmd, param0, param1, 0);
3036
3037         return (error);
3038 }
3039
3040 /*
3041  * Special routines to download firmware for Symbol CF card.
3042  * XXX: This should be modified generic into any PRISM-2 based card.
3043  */
3044
3045 #define WI_SBCF_PDIADDR         0x3100
3046
3047 /* unaligned load little endian */
3048 #define GETLE32(p)      ((p)[0] | ((p)[1]<<8) | ((p)[2]<<16) | ((p)[3]<<24))
3049 #define GETLE16(p)      ((p)[0] | ((p)[1]<<8))
3050
3051 int
3052 wi_symbol_load_firm(struct wi_softc *sc, const void *primsym, int primlen,
3053     const void *secsym, int seclen)
3054 {
3055         uint8_t ebuf[256];
3056         int i;
3057
3058         /* load primary code and run it */
3059         wi_symbol_set_hcr(sc, WI_HCR_EEHOLD);
3060         if (wi_symbol_write_firm(sc, primsym, primlen, NULL, 0))
3061                 return EIO;
3062         wi_symbol_set_hcr(sc, WI_HCR_RUN);
3063         for (i = 0; ; i++) {
3064                 if (i == 10)
3065                         return ETIMEDOUT;
3066                 tsleep(sc, 0, "wiinit", 1);
3067                 if (CSR_READ_2(sc, WI_CNTL) == WI_CNTL_AUX_ENA_STAT)
3068                         break;
3069                 /* write the magic key value to unlock aux port */
3070                 CSR_WRITE_2(sc, WI_PARAM0, WI_AUX_KEY0);
3071                 CSR_WRITE_2(sc, WI_PARAM1, WI_AUX_KEY1);
3072                 CSR_WRITE_2(sc, WI_PARAM2, WI_AUX_KEY2);
3073                 CSR_WRITE_2(sc, WI_CNTL, WI_CNTL_AUX_ENA_CNTL);
3074         }
3075
3076         /* issue read EEPROM command: XXX copied from wi_cmd() */
3077         CSR_WRITE_2(sc, WI_PARAM0, 0);
3078         CSR_WRITE_2(sc, WI_PARAM1, 0);
3079         CSR_WRITE_2(sc, WI_PARAM2, 0);
3080         CSR_WRITE_2(sc, WI_COMMAND, WI_CMD_READEE);
3081         for (i = 0; i < WI_TIMEOUT; i++) {
3082                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_CMD)
3083                         break;
3084                 DELAY(1);
3085         }
3086         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
3087
3088         CSR_WRITE_2(sc, WI_AUX_PAGE, WI_SBCF_PDIADDR / WI_AUX_PGSZ);
3089         CSR_WRITE_2(sc, WI_AUX_OFFSET, WI_SBCF_PDIADDR % WI_AUX_PGSZ);
3090         CSR_READ_MULTI_STREAM_2(sc, WI_AUX_DATA,
3091             (uint16_t *)ebuf, sizeof(ebuf) / 2);
3092         if (GETLE16(ebuf) > sizeof(ebuf))
3093                 return EIO;
3094         if (wi_symbol_write_firm(sc, secsym, seclen, ebuf + 4, GETLE16(ebuf)))
3095                 return EIO;
3096         return 0;
3097 }
3098
3099 static int
3100 wi_symbol_write_firm(struct wi_softc *sc, const void *buf, int buflen,
3101     const void *ebuf, int ebuflen)
3102 {
3103         const uint8_t *p, *ep, *q, *eq;
3104         char *tp;
3105         uint32_t addr, id, eid;
3106         int i, len, elen, nblk, pdrlen;
3107
3108         /*
3109          * Parse the header of the firmware image.
3110          */
3111         p = buf;
3112         ep = p + buflen;
3113         while (p < ep && *p++ != ' ');  /* FILE: */
3114         while (p < ep && *p++ != ' ');  /* filename */
3115         while (p < ep && *p++ != ' ');  /* type of the firmware */
3116         nblk = strtoul(p, &tp, 10);
3117         p = tp;
3118         pdrlen = strtoul(p + 1, &tp, 10);
3119         p = tp;
3120         while (p < ep && *p++ != 0x1a); /* skip rest of header */
3121
3122         /*
3123          * Block records: address[4], length[2], data[length];
3124          */
3125         for (i = 0; i < nblk; i++) {
3126                 addr = GETLE32(p);      p += 4;
3127                 len  = GETLE16(p);      p += 2;
3128                 CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3129                 CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3130                 CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3131                     (const uint16_t *)p, len / 2);
3132                 p += len;
3133         }
3134
3135         /*
3136          * PDR: id[4], address[4], length[4];
3137          */
3138         for (i = 0; i < pdrlen; ) {
3139                 id   = GETLE32(p);      p += 4; i += 4;
3140                 addr = GETLE32(p);      p += 4; i += 4;
3141                 len  = GETLE32(p);      p += 4; i += 4;
3142                 /* replace PDR entry with the values from EEPROM, if any */
3143                 for (q = ebuf, eq = q + ebuflen; q < eq; q += elen * 2) {
3144                         elen = GETLE16(q);      q += 2;
3145                         eid  = GETLE16(q);      q += 2;
3146                         elen--;         /* elen includes eid */
3147                         if (eid == 0)
3148                                 break;
3149                         if (eid != id)
3150                                 continue;
3151                         CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3152                         CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3153                         CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3154                             (const uint16_t *)q, len / 2);
3155                         break;
3156                 }
3157         }
3158         return 0;
3159 }
3160
3161 static int
3162 wi_symbol_set_hcr(struct wi_softc *sc, int mode)
3163 {
3164         uint16_t hcr;
3165
3166         CSR_WRITE_2(sc, WI_COR, WI_COR_RESET);
3167         tsleep(sc, 0, "wiinit", 1);
3168         hcr = CSR_READ_2(sc, WI_HCR);
3169         hcr = (hcr & WI_HCR_4WIRE) | (mode & ~WI_HCR_4WIRE);
3170         CSR_WRITE_2(sc, WI_HCR, hcr);
3171         tsleep(sc, 0, "wiinit", 1);
3172         CSR_WRITE_2(sc, WI_COR, WI_COR_IOMODE);
3173         tsleep(sc, 0, "wiinit", 1);
3174         return 0;
3175 }