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 1.41 2008/05/14 11:59:22 sephe Exp $
  36  */
  37
  38 /*
  39  * Lucent WaveLAN/IEEE 802.11 PCMCIA driver.
  40  *
  41  * Original FreeBSD driver written by Bill Paul <wpaul@ctr.columbia.edu>
  42  * Electrical Engineering Department
  43  * Columbia University, New York City
  44  */
  45
  46 /*
  47  * The WaveLAN/IEEE adapter is the second generation of the WaveLAN
  48  * from Lucent. Unlike the older cards, the new ones are programmed
  49  * entirely via a firmware-driven controller called the Hermes.
  50  * Unfortunately, Lucent will not release the Hermes programming manual
  51  * without an NDA (if at all). What they do release is an API library
  52  * called the HCF (Hardware Control Functions) which is supposed to
  53  * do the device-specific operations of a device driver for you. The
  54  * publically available version of the HCF library (the 'HCF Light') is
  55  * a) extremely gross, b) lacks certain features, particularly support
  56  * for 802.11 frames, and c) is contaminated by the GNU Public License.
  57  *
  58  * This driver does not use the HCF or HCF Light at all. Instead, it
  59  * programs the Hermes controller directly, using information gleaned
  60  * from the HCF Light code and corresponding documentation.
  61  *
  62  * This driver supports the ISA, PCMCIA and PCI versions of the Lucent
  63  * WaveLan cards (based on the Hermes chipset), as well as the newer
  64  * Prism 2 chipsets with firmware from Intersil and Symbol.
  65  */
  66
  67 #define WI_HERMES_AUTOINC_WAR   /* Work around data write autoinc bug. */
  68 #define WI_HERMES_STATS_WAR     /* Work around stats counter bug. */
  69
  70 #include "opt_polling.h"
  71
  72 #include <sys/param.h>
  73 #include <sys/endian.h>
  74 #include <sys/systm.h>
  75 #include <sys/sockio.h>
  76 #include <sys/mbuf.h>
  77 #include <sys/proc.h>
  78 #include <sys/priv.h>
  79 #include <sys/kernel.h>
  80 #include <sys/socket.h>
  81 #include <sys/module.h>
  82 #include <sys/bus.h>
  83 #include <sys/random.h>
  84 #include <sys/syslog.h>
  85 #include <sys/sysctl.h>
  86 #include <sys/serialize.h>
  87 #include <sys/rman.h>
  88 #include <sys/thread2.h>
  89 #include <sys/interrupt.h>
  90
  91 #include <machine/atomic.h>
  92
  93 #include <net/if.h>
  94 #include <net/if_arp.h>
  95 #include <net/ethernet.h>
  96 #include <net/if_dl.h>
  97 #include <net/if_media.h>
  98 #include <net/if_types.h>
  99 #include <net/ifq_var.h>
 100
 101 #include <netproto/802_11/ieee80211_var.h>
 102 #include <netproto/802_11/ieee80211_ioctl.h>
 103 #include <netproto/802_11/ieee80211_radiotap.h>
 104 #include <netproto/802_11/if_wavelan_ieee.h>
 105
 106 #include <netinet/in.h>
 107 #include <netinet/in_systm.h>
 108 #include <netinet/in_var.h>
 109 #include <netinet/ip.h>
 110 #include <netinet/if_ether.h>
 111
 112 #include <net/bpf.h>
 113
 114 #include <dev/netif/wi/if_wireg.h>
 115 #include <dev/netif/wi/if_wivar.h>
 116
 117 static void wi_start(struct ifnet *);
 118 static int  wi_reset(struct wi_softc *);
 119 static void wi_watchdog(struct ifnet *);
 120 static int  wi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
 121 static int  wi_media_change(struct ifnet *);
 122 static void wi_media_status(struct ifnet *, struct ifmediareq *);
 123
 124 static void wi_rx_intr(struct wi_softc *);
 125 static void wi_tx_intr(struct wi_softc *);
 126 static void wi_tx_ex_intr(struct wi_softc *);
 127 static void wi_info_intr(struct wi_softc *);
 128
 129 static int  wi_get_cfg(struct ifnet *, u_long, caddr_t, struct ucred *);
 130 static int  wi_set_cfg(struct ifnet *, u_long, caddr_t);
 131 static int  wi_write_txrate(struct wi_softc *);
 132 static int  wi_write_wep(struct wi_softc *);
 133 static int  wi_write_multi(struct wi_softc *);
 134 static int  wi_alloc_fid(struct wi_softc *, int, int *);
 135 static void wi_read_nicid(struct wi_softc *);
 136 static int  wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
 137
 138 static int  wi_cmd(struct wi_softc *, int, int, int, int);
 139 static int  wi_seek_bap(struct wi_softc *, int, int);
 140 static int  wi_read_bap(struct wi_softc *, int, int, void *, int);
 141 static int  wi_write_bap(struct wi_softc *, int, int, void *, int);
 142 static int  wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
 143 static int  wi_read_rid(struct wi_softc *, int, void *, int *);
 144 static int  wi_write_rid(struct wi_softc *, int, void *, int);
 145
 146 static int  wi_key_alloc(struct ieee80211com *, const struct ieee80211_key *,
 147                 ieee80211_keyix *, ieee80211_keyix *);
 148 static int  wi_newstate(struct ieee80211com *, enum ieee80211_state, int);
 149
 150 static int  wi_scan_ap(struct wi_softc *, u_int16_t, u_int16_t);
 151 static void wi_scan_result(struct wi_softc *, int, int);
 152
 153 static void wi_dump_pkt(struct wi_frame *, struct ieee80211_node *, int rssi);
 154
 155 static int wi_get_debug(struct wi_softc *, struct wi_req *);
 156 static int wi_set_debug(struct wi_softc *, struct wi_req *);
 157
 158 /* support to download firmware for symbol CF card */
 159 static int wi_symbol_write_firm(struct wi_softc *, const void *, int,
 160                 const void *, int);
 161 static int wi_symbol_set_hcr(struct wi_softc *, int);
 162 #ifdef DEVICE_POLLING
 163 static void wi_poll(struct ifnet *ifp, enum poll_cmd cmd, int count);
 164 #endif
 165
 166 static __inline int
 167 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val)
 168 {
 169
 170         val = htole16(val);
 171         return wi_write_rid(sc, rid, &val, sizeof(val));
 172 }
 173
 174 SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, "Wireless driver parameters");
 175
 176 static  struct timeval lasttxerror;     /* time of last tx error msg */
 177 static  int curtxeps;                   /* current tx error msgs/sec */
 178 static  int wi_txerate = 0;             /* tx error rate: max msgs/sec */
 179 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate,
 180             0, "max tx error msgs/sec; 0 to disable msgs");
 181
 182 #define WI_DEBUG
 183 #ifdef WI_DEBUG
 184 static  int wi_debug = 0;
 185 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug,
 186             0, "control debugging kprintfs");
 187
 188 #define DPRINTF(X)      if (wi_debug) if_printf X
 189 #define DPRINTF2(X)     if (wi_debug > 1) if_printf X
 190 #define IFF_DUMPPKTS(_ifp) \
 191         (((_ifp)->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2))
 192 #else
 193 #define DPRINTF(X)
 194 #define DPRINTF2(X)
 195 #define IFF_DUMPPKTS(_ifp)      0
 196 #endif
 197
 198 #define WI_INTRS        (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
 199
 200 struct wi_card_ident wi_card_ident[] = {
 201         /* CARD_ID                      CARD_NAME               FIRM_TYPE */
 202         { WI_NIC_LUCENT_ID,             WI_NIC_LUCENT_STR,      WI_LUCENT },
 203         { WI_NIC_SONY_ID,               WI_NIC_SONY_STR,        WI_LUCENT },
 204         { WI_NIC_LUCENT_EMB_ID,         WI_NIC_LUCENT_EMB_STR,  WI_LUCENT },
 205         { WI_NIC_EVB2_ID,               WI_NIC_EVB2_STR,        WI_INTERSIL },
 206         { WI_NIC_HWB3763_ID,            WI_NIC_HWB3763_STR,     WI_INTERSIL },
 207         { WI_NIC_HWB3163_ID,            WI_NIC_HWB3163_STR,     WI_INTERSIL },
 208         { WI_NIC_HWB3163B_ID,           WI_NIC_HWB3163B_STR,    WI_INTERSIL },
 209         { WI_NIC_EVB3_ID,               WI_NIC_EVB3_STR,        WI_INTERSIL },
 210         { WI_NIC_HWB1153_ID,            WI_NIC_HWB1153_STR,     WI_INTERSIL },
 211         { WI_NIC_P2_SST_ID,             WI_NIC_P2_SST_STR,      WI_INTERSIL },
 212         { WI_NIC_EVB2_SST_ID,           WI_NIC_EVB2_SST_STR,    WI_INTERSIL },
 213         { WI_NIC_3842_EVA_ID,           WI_NIC_3842_EVA_STR,    WI_INTERSIL },
 214         { WI_NIC_3842_PCMCIA_AMD_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 215         { WI_NIC_3842_PCMCIA_SST_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 216         { WI_NIC_3842_PCMCIA_ATL_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 217         { WI_NIC_3842_PCMCIA_ATS_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 218         { WI_NIC_3842_MINI_AMD_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 219         { WI_NIC_3842_MINI_SST_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 220         { WI_NIC_3842_MINI_ATL_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 221         { WI_NIC_3842_MINI_ATS_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 222         { WI_NIC_3842_PCI_AMD_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 223         { WI_NIC_3842_PCI_SST_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 224         { WI_NIC_3842_PCI_ATS_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 225         { WI_NIC_3842_PCI_ATL_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 226         { WI_NIC_P3_PCMCIA_AMD_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 227         { WI_NIC_P3_PCMCIA_SST_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 228         { WI_NIC_P3_PCMCIA_ATL_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 229         { WI_NIC_P3_PCMCIA_ATS_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 230         { WI_NIC_P3_MINI_AMD_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 231         { WI_NIC_P3_MINI_SST_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 232         { WI_NIC_P3_MINI_ATL_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 233         { WI_NIC_P3_MINI_ATS_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 234         { 0,    NULL,   0 },
 235 };
 236
 237 devclass_t wi_devclass;
 238
 239 int
 240 wi_attach(device_t dev)
 241 {
 242         struct wi_softc *sc = device_get_softc(dev);
 243         struct ieee80211com *ic = &sc->sc_ic;
 244         struct ifnet *ifp = &ic->ic_if;
 245         int i, nrates, buflen;
 246         u_int16_t val;
 247         u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE];
 248         struct ieee80211_rateset *rs;
 249         static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = {
 250                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 251         };
 252         int error;
 253
 254         ifp->if_softc = sc;
 255         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 256
 257         sc->sc_firmware_type = WI_NOTYPE;
 258         sc->wi_cmd_count = 500;
 259
 260         /* Reset the NIC. */
 261         error = wi_reset(sc);
 262         if (error)
 263                 goto fail;
 264
 265         /*
 266          * Read the station address.
 267          * And do it twice. I've seen PRISM-based cards that return
 268          * an error when trying to read it the first time, which causes
 269          * the probe to fail.
 270          */
 271         buflen = IEEE80211_ADDR_LEN;
 272         error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 273         if (error != 0) {
 274                 buflen = IEEE80211_ADDR_LEN;
 275                 error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 276         }
 277         if (error) {
 278                 device_printf(dev, "mac read failed %d\n", error);
 279                 goto fail;
 280         }
 281         if (IEEE80211_ADDR_EQ(ic->ic_myaddr, empty_macaddr)) {
 282                 device_printf(dev, "mac read failed (all zeros)\n");
 283                 error = ENXIO;
 284                 goto fail;
 285         }
 286
 287         /* Read NIC identification */
 288         wi_read_nicid(sc);
 289
 290         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 291         ifp->if_ioctl = wi_ioctl;
 292         ifp->if_start = wi_start;
 293         ifp->if_watchdog = wi_watchdog;
 294         ifp->if_init = wi_init;
 295         ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
 296         ifq_set_ready(&ifp->if_snd);
 297 #ifdef DEVICE_POLLING
 298         ifp->if_poll = wi_poll;
 299 #endif
 300         ifp->if_capenable = ifp->if_capabilities;
 301
 302         ic->ic_phytype = IEEE80211_T_DS;
 303         ic->ic_opmode = IEEE80211_M_STA;
 304         ic->ic_caps = IEEE80211_C_PMGT |
 305                       IEEE80211_C_IBSS |
 306                       IEEE80211_C_WEP;
 307         ic->ic_state = IEEE80211_S_INIT;
 308         ic->ic_max_aid = WI_MAX_AID;
 309
 310         /*
 311          * Query the card for available channels and setup the
 312          * channel table.  We assume these are all 11b channels.
 313          */
 314         buflen = sizeof(val);
 315         if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
 316                 val = htole16(0x1fff);  /* assume 1-11 */
 317         KASSERT(val != 0, ("wi_attach: no available channels listed!"));
 318
 319         val <<= 1;                      /* shift for base 1 indices */
 320         for (i = 1; i < 16; i++) {
 321                 if (isset((u_int8_t*)&val, i)) {
 322                         ic->ic_channels[i].ic_freq =
 323                                 ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
 324                         ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B;
 325                 }
 326         }
 327
 328         /*
 329          * Read the default channel from the NIC. This may vary
 330          * depending on the country where the NIC was purchased, so
 331          * we can't hard-code a default and expect it to work for
 332          * everyone.
 333          *
 334          * If no channel is specified, let the 802.11 code select.
 335          */
 336         buflen = sizeof(val);
 337         if (wi_read_rid(sc, WI_RID_OWN_CHNL, &val, &buflen) == 0) {
 338                 val = le16toh(val);
 339                 KASSERT(val < IEEE80211_CHAN_MAX &&
 340                         ic->ic_channels[val].ic_flags != 0,
 341                         ("wi_attach: invalid own channel %u!", val));
 342                 ic->ic_ibss_chan = &ic->ic_channels[val];
 343         } else {
 344                 device_printf(dev,
 345                         "WI_RID_OWN_CHNL failed, using first channel!\n");
 346                 ic->ic_ibss_chan = &ic->ic_channels[0];
 347         }
 348
 349         /*
 350          * Set flags based on firmware version.
 351          */
 352         switch (sc->sc_firmware_type) {
 353         case WI_LUCENT:
 354                 sc->sc_ntxbuf = 1;
 355                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 356 #ifdef WI_HERMES_AUTOINC_WAR
 357                 /* XXX: not confirmed, but never seen for recent firmware */
 358                 if (sc->sc_sta_firmware_ver <  40000) {
 359                         sc->sc_flags |= WI_FLAGS_BUG_AUTOINC;
 360                 }
 361 #endif
 362                 if (sc->sc_sta_firmware_ver >= 60000)
 363                         sc->sc_flags |= WI_FLAGS_HAS_MOR;
 364                 if (sc->sc_sta_firmware_ver >= 60006) {
 365                         ic->ic_caps |= IEEE80211_C_IBSS;
 366                         ic->ic_caps |= IEEE80211_C_MONITOR;
 367                 }
 368                 sc->sc_ibss_port = htole16(1);
 369
 370                 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
 371                 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
 372                 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
 373                 break;
 374
 375         case WI_INTERSIL:
 376                 sc->sc_ntxbuf = WI_NTXBUF;
 377                 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR;
 378                 sc->sc_flags |= WI_FLAGS_HAS_ROAMING;
 379                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 380                 /*
 381                  * Old firmware are slow, so give peace a chance.
 382                  */
 383                 if (sc->sc_sta_firmware_ver < 10000)
 384                         sc->wi_cmd_count = 5000;
 385                 if (sc->sc_sta_firmware_ver > 10101)
 386                         sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
 387                 if (sc->sc_sta_firmware_ver >= 800) {
 388                         ic->ic_caps |= IEEE80211_C_IBSS;
 389                         ic->ic_caps |= IEEE80211_C_MONITOR;
 390                 }
 391                 /*
 392                  * version 0.8.3 and newer are the only ones that are known
 393                  * to currently work.  Earlier versions can be made to work,
 394                  * at least according to the Linux driver.
 395                  */
 396                 if (sc->sc_sta_firmware_ver >= 803)
 397                         ic->ic_caps |= IEEE80211_C_HOSTAP;
 398                 sc->sc_ibss_port = htole16(0);
 399
 400                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 401                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 402                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 403                 break;
 404
 405         case WI_SYMBOL:
 406                 sc->sc_ntxbuf = 1;
 407                 sc->sc_flags |= WI_FLAGS_HAS_DIVERSITY;
 408                 if (sc->sc_sta_firmware_ver >= 25000)
 409                         ic->ic_caps |= IEEE80211_C_IBSS;
 410                 sc->sc_ibss_port = htole16(4);
 411
 412                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 413                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 414                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 415                 break;
 416         }
 417
 418         /*
 419          * Find out if we support WEP on this card.
 420          */
 421         buflen = sizeof(val);
 422         if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
 423             val != htole16(0))
 424                 ic->ic_caps |= IEEE80211_C_WEP;
 425
 426         /* Find supported rates. */
 427         buflen = sizeof(ratebuf);
 428         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
 429         if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
 430                 nrates = le16toh(*(u_int16_t *)ratebuf);
 431                 if (nrates > IEEE80211_RATE_MAXSIZE)
 432                         nrates = IEEE80211_RATE_MAXSIZE;
 433                 rs->rs_nrates = 0;
 434                 for (i = 0; i < nrates; i++)
 435                         if (ratebuf[2+i])
 436                                 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
 437         } else {
 438                 /* XXX fallback on error? */
 439                 rs->rs_nrates = 0;
 440         }
 441
 442         buflen = sizeof(val);
 443         if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
 444             wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
 445                 sc->sc_dbm_offset = le16toh(val);
 446         }
 447
 448         sc->sc_max_datalen = 2304;
 449         sc->sc_system_scale = 1;
 450         sc->sc_cnfauthmode = IEEE80211_AUTH_OPEN;
 451         sc->sc_roaming_mode = 1;
 452
 453         sc->sc_portnum = WI_DEFAULT_PORT;
 454         sc->sc_authtype = WI_DEFAULT_AUTHTYPE;
 455
 456         bzero(sc->sc_nodename, sizeof(sc->sc_nodename));
 457         sc->sc_nodelen = sizeof(WI_DEFAULT_NODENAME) - 1;
 458         bcopy(WI_DEFAULT_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 459
 460         bzero(sc->sc_net_name, sizeof(sc->sc_net_name));
 461         bcopy(WI_DEFAULT_NETNAME, sc->sc_net_name,
 462             sizeof(WI_DEFAULT_NETNAME) - 1);
 463
 464         /*
 465          * Call MI attach routine.
 466          */
 467         ieee80211_ifattach(ic);
 468         /* override state transition method */
 469         sc->sc_newstate = ic->ic_newstate;
 470         sc->sc_key_alloc = ic->ic_crypto.cs_key_alloc;
 471         ic->ic_crypto.cs_key_alloc = wi_key_alloc;
 472         ic->ic_newstate = wi_newstate;
 473         ieee80211_media_init(ic, wi_media_change, wi_media_status);
 474
 475         bpfattach_dlt(ifp, DLT_IEEE802_11_RADIO,
 476                 sizeof(struct ieee80211_frame) + sizeof(sc->sc_tx_th),
 477                 &sc->sc_drvbpf);
 478         /*
 479          * Initialize constant fields.
 480          * XXX make header lengths a multiple of 32-bits so subsequent
 481          *     headers are properly aligned; this is a kludge to keep
 482          *     certain applications happy.
 483          *
 484          * NB: the channel is setup each time we transition to the
 485          *     RUN state to avoid filling it in for each frame.
 486          */
 487         sc->sc_tx_th_len = roundup(sizeof(sc->sc_tx_th), sizeof(u_int32_t));
 488         sc->sc_tx_th.wt_ihdr.it_len = htole16(sc->sc_tx_th_len);
 489         sc->sc_tx_th.wt_ihdr.it_present = htole32(WI_TX_RADIOTAP_PRESENT);
 490
 491         sc->sc_rx_th_len = roundup(sizeof(sc->sc_rx_th), sizeof(u_int32_t));
 492         sc->sc_rx_th.wr_ihdr.it_len = htole16(sc->sc_rx_th_len);
 493         sc->sc_rx_th.wr_ihdr.it_present = htole32(WI_RX_RADIOTAP_PRESENT);
 494
 495         error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
 496                                wi_intr, sc, &sc->wi_intrhand,
 497                                ifp->if_serializer);
 498         if (error) {
 499                 bpfdetach(ifp);
 500                 ieee80211_ifdetach(ic);
 501                 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
 502                 goto fail;
 503         }
 504
 505         ifp->if_cpuid = ithread_cpuid(rman_get_start(sc->irq));
 506         KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
 507
 508         if (bootverbose)
 509                 ieee80211_announce(ic);
 510
 511         return(0);
 512
 513 fail:
 514         wi_free(dev);
 515         return(error);
 516 }
 517
 518 int
 519 wi_detach(device_t dev)
 520 {
 521         struct wi_softc *sc = device_get_softc(dev);
 522         struct ifnet *ifp = &sc->sc_ic.ic_if;
 523
 524         lwkt_serialize_enter(ifp->if_serializer);
 525
 526         /* check if device was removed */
 527         sc->wi_gone |= !bus_child_present(dev);
 528         wi_stop(ifp, 0);
 529         bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
 530
 531         lwkt_serialize_exit(ifp->if_serializer);
 532
 533         bpfdetach(ifp);
 534         ieee80211_ifdetach(&sc->sc_ic);
 535         wi_free(dev);
 536         return (0);
 537 }
 538
 539 void
 540 wi_shutdown(device_t dev)
 541 {
 542         struct wi_softc *sc = device_get_softc(dev);
 543         struct ifnet *ifp = &sc->sc_if;
 544
 545         lwkt_serialize_enter(ifp->if_serializer);
 546         wi_stop(ifp, 1);
 547         lwkt_serialize_exit(ifp->if_serializer);
 548 }
 549
 550 #ifdef DEVICE_POLLING
 551
 552 static void
 553 wi_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
 554 {
 555         struct wi_softc *sc = ifp->if_softc;
 556         uint16_t status;
 557
 558         switch(cmd) {
 559         case POLL_REGISTER:
 560                 /* disable interruptds */
 561                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 562                 break;
 563         case POLL_DEREGISTER:
 564                 /* enable interrupts */
 565                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 566                 break;
 567         default:
 568                 status = CSR_READ_2(sc, WI_EVENT_STAT);
 569
 570                 if (status & WI_EV_RX)
 571                         wi_rx_intr(sc);
 572                 if (status & WI_EV_ALLOC)
 573                         wi_tx_intr(sc);
 574                 if (status & WI_EV_INFO)
 575                         wi_info_intr(sc);
 576
 577                 if (cmd == POLL_AND_CHECK_STATUS) {
 578                         if (status & WI_EV_INFO)
 579                                 wi_info_intr(sc);
 580                 }
 581
 582                 if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 583                     (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0)
 584                         ifp->if_start(ifp);
 585                 break;
 586         }
 587 }
 588 #endif /* DEVICE_POLLING */
 589
 590 void
 591 wi_intr(void *arg)
 592 {
 593         struct wi_softc *sc = arg;
 594         struct ifnet *ifp = &sc->sc_ic.ic_if;
 595         u_int16_t status;
 596
 597         if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) {
 598                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 599                 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
 600                 return;
 601         }
 602
 603         /* Disable interrupts. */
 604         CSR_WRITE_2(sc, WI_INT_EN, 0);
 605
 606         status = CSR_READ_2(sc, WI_EVENT_STAT);
 607         if (status & WI_EV_RX)
 608                 wi_rx_intr(sc);
 609         if (status & WI_EV_ALLOC)
 610                 wi_tx_intr(sc);
 611         if (status & WI_EV_TX_EXC)
 612                 wi_tx_ex_intr(sc);
 613         if (status & WI_EV_INFO)
 614                 wi_info_intr(sc);
 615         if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 616             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0)
 617                 ifp->if_start(ifp);
 618
 619         /* Re-enable interrupts. */
 620         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 621 }
 622
 623 void
 624 wi_init(void *arg)
 625 {
 626         struct wi_softc *sc = arg;
 627         struct ifnet *ifp = &sc->sc_if;
 628         struct ieee80211com *ic = &sc->sc_ic;
 629         struct wi_joinreq join;
 630         int i;
 631         int error = 0, wasenabled;
 632
 633         if (sc->wi_gone)
 634                 return;
 635
 636         if ((wasenabled = sc->sc_enabled))
 637                 wi_stop(ifp, 1);
 638         wi_reset(sc);
 639
 640         /* common 802.11 configuration */
 641         ic->ic_flags &= ~IEEE80211_F_IBSSON;
 642         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
 643         switch (ic->ic_opmode) {
 644         case IEEE80211_M_STA:
 645                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_BSS);
 646                 break;
 647         case IEEE80211_M_IBSS:
 648                 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_ibss_port);
 649                 ic->ic_flags |= IEEE80211_F_IBSSON;
 650                 break;
 651         case IEEE80211_M_AHDEMO:
 652                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 653                 break;
 654         case IEEE80211_M_HOSTAP:
 655                 /*
 656                  * For PRISM cards, override the empty SSID, because in
 657                  * HostAP mode the controller will lock up otherwise.
 658                  */
 659                 if (sc->sc_firmware_type == WI_INTERSIL &&
 660                     ic->ic_des_esslen == 0) {
 661                         ic->ic_des_essid[0] = ' ';
 662                         ic->ic_des_esslen = 1;
 663                 }
 664                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_HOSTAP);
 665                 break;
 666         case IEEE80211_M_MONITOR:
 667                 if (sc->sc_firmware_type == WI_LUCENT)
 668                         wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 669                 wi_cmd(sc, WI_CMD_DEBUG | (WI_TEST_MONITOR << 8), 0, 0, 0);
 670                 break;
 671         }
 672
 673         /* Intersil interprets this RID as joining ESS even in IBSS mode */
 674         if (sc->sc_firmware_type == WI_LUCENT &&
 675             (ic->ic_flags & IEEE80211_F_IBSSON) && ic->ic_des_esslen > 0)
 676                 wi_write_val(sc, WI_RID_CREATE_IBSS, 1);
 677         else
 678                 wi_write_val(sc, WI_RID_CREATE_IBSS, 0);
 679         wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
 680         wi_write_ssid(sc, WI_RID_DESIRED_SSID, ic->ic_des_essid,
 681             ic->ic_des_esslen);
 682         wi_write_val(sc, WI_RID_OWN_CHNL,
 683                 ieee80211_chan2ieee(ic, ic->ic_ibss_chan));
 684         wi_write_ssid(sc, WI_RID_OWN_SSID, ic->ic_des_essid, ic->ic_des_esslen);
 685
 686         IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
 687         wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, IEEE80211_ADDR_LEN);
 688
 689         if (ic->ic_caps & IEEE80211_C_PMGT) {
 690                 wi_write_val(sc, WI_RID_PM_ENABLED,
 691                     (ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0);
 692         }
 693
 694         /* not yet common 802.11 configuration */
 695         wi_write_val(sc, WI_RID_MAX_DATALEN, sc->sc_max_datalen);
 696         wi_write_val(sc, WI_RID_RTS_THRESH, ic->ic_rtsthreshold);
 697         if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
 698                 wi_write_val(sc, WI_RID_FRAG_THRESH, ic->ic_fragthreshold);
 699
 700         /* driver specific 802.11 configuration */
 701         if (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)
 702                 wi_write_val(sc, WI_RID_SYSTEM_SCALE, sc->sc_system_scale);
 703         if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
 704                 wi_write_val(sc, WI_RID_ROAMING_MODE, sc->sc_roaming_mode);
 705         if (sc->sc_flags & WI_FLAGS_HAS_MOR)
 706                 wi_write_val(sc, WI_RID_MICROWAVE_OVEN, sc->sc_microwave_oven);
 707         wi_write_txrate(sc);
 708         wi_write_ssid(sc, WI_RID_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 709
 710         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
 711             sc->sc_firmware_type == WI_INTERSIL) {
 712                 wi_write_val(sc, WI_RID_OWN_BEACON_INT, ic->ic_bintval);
 713                 wi_write_val(sc, WI_RID_BASIC_RATE, 0x03);   /* 1, 2 */
 714                 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0x0f); /* 1, 2, 5.5, 11 */
 715                 wi_write_val(sc, WI_RID_DTIM_PERIOD, ic->ic_dtim_period);
 716         }
 717
 718         /*
 719          * Initialize promisc mode.
 720          *      Being in the Host-AP mode causes a great
 721          *      deal of pain if primisc mode is set.
 722          *      Therefore we avoid confusing the firmware
 723          *      and always reset promisc mode in Host-AP
 724          *      mode.  Host-AP sees all the packets anyway.
 725          */
 726         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
 727             (ifp->if_flags & IFF_PROMISC) != 0) {
 728                 wi_write_val(sc, WI_RID_PROMISC, 1);
 729         } else {
 730                 wi_write_val(sc, WI_RID_PROMISC, 0);
 731         }
 732
 733         /* Configure WEP. */
 734         if (ic->ic_caps & IEEE80211_C_WEP) {
 735                 sc->sc_cnfauthmode = ic->ic_bss->ni_authmode;
 736                 wi_write_wep(sc);
 737         } else {
 738                 sc->sc_encryption = 0;
 739         }
 740
 741         /* Set multicast filter. */
 742         wi_write_multi(sc);
 743
 744         /* Allocate fids for the card */
 745         if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) {
 746                 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
 747                 if (sc->sc_firmware_type == WI_SYMBOL)
 748                         sc->sc_buflen = 1585;   /* XXX */
 749                 for (i = 0; i < sc->sc_ntxbuf; i++) {
 750                         error = wi_alloc_fid(sc, sc->sc_buflen,
 751                             &sc->sc_txd[i].d_fid);
 752                         if (error) {
 753                                 if_printf(ifp,
 754                                     "tx buffer allocation failed (error %u)\n",
 755                                     error);
 756                                 goto out;
 757                         }
 758                         sc->sc_txd[i].d_len = 0;
 759                 }
 760         }
 761         sc->sc_txcur = sc->sc_txnext = 0;
 762
 763         /* Enable desired port */
 764         wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
 765
 766         sc->sc_enabled = 1;
 767         ifp->if_flags |= IFF_RUNNING;
 768         ifp->if_flags &= ~IFF_OACTIVE;
 769         if (ic->ic_opmode == IEEE80211_M_AHDEMO ||
 770             ic->ic_opmode == IEEE80211_M_IBSS ||
 771             ic->ic_opmode == IEEE80211_M_MONITOR ||
 772             ic->ic_opmode == IEEE80211_M_HOSTAP)
 773                 ieee80211_create_ibss(ic, ic->ic_ibss_chan);
 774
 775         /* Enable interrupts if not polling */
 776 #ifdef DEVICE_POLLING
 777         if ((ifp->if_flags & IFF_POLLING) == 0)
 778 #endif
 779                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 780
 781         if (!wasenabled &&
 782             ic->ic_opmode == IEEE80211_M_HOSTAP &&
 783             sc->sc_firmware_type == WI_INTERSIL) {
 784                 /* XXX: some card need to be re-enabled for hostap */
 785                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
 786                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
 787         }
 788
 789         if (ic->ic_opmode == IEEE80211_M_STA &&
 790             ((ic->ic_flags & IEEE80211_F_DESBSSID) ||
 791             ic->ic_des_chan != IEEE80211_CHAN_ANYC)) {
 792                 memset(&join, 0, sizeof(join));
 793                 if (ic->ic_flags & IEEE80211_F_DESBSSID)
 794                         IEEE80211_ADDR_COPY(&join.wi_bssid, ic->ic_des_bssid);
 795                 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC)
 796                         join.wi_chan = htole16(
 797                                 ieee80211_chan2ieee(ic, ic->ic_des_chan));
 798                 /* Lucent firmware does not support the JOIN RID. */
 799                 if (sc->sc_firmware_type != WI_LUCENT)
 800                         wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
 801         }
 802         return;
 803 out:
 804         if (error) {
 805                 if_printf(ifp, "interface not running\n");
 806                 wi_stop(ifp, 1);
 807         }
 808
 809         DPRINTF((ifp, "wi_init: return %d\n", error));
 810         return;
 811 }
 812
 813 void
 814 wi_stop(struct ifnet *ifp, int disable)
 815 {
 816         struct ieee80211com *ic = (struct ieee80211com *) ifp;
 817         struct wi_softc *sc = ifp->if_softc;
 818
 819         DELAY(100000);
 820
 821         ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
 822         if (sc->sc_enabled && !sc->wi_gone) {
 823                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 824                 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
 825                 if (disable) {
 826 #ifdef __NetBSD__
 827                         if (sc->sc_disable)
 828                                 (*sc->sc_disable)(sc);
 829 #endif
 830                         sc->sc_enabled = 0;
 831                 }
 832         } else if (sc->wi_gone && disable)      /* gone --> not enabled */
 833             sc->sc_enabled = 0;
 834
 835         sc->sc_tx_timer = 0;
 836         sc->sc_scan_timer = 0;
 837         sc->sc_false_syns = 0;
 838         sc->sc_naps = 0;
 839         ifp->if_flags &= ~(IFF_OACTIVE | IFF_RUNNING);
 840         ifp->if_timer = 0;
 841 }
 842
 843 static void
 844 wi_start(struct ifnet *ifp)
 845 {
 846         struct wi_softc *sc = ifp->if_softc;
 847         struct ieee80211com *ic = &sc->sc_ic;
 848         struct ieee80211_node *ni;
 849         struct ieee80211_frame *wh;
 850         struct mbuf *m0;
 851         struct wi_frame frmhdr;
 852         int cur, fid, off, error;
 853
 854         if (sc->wi_gone || (sc->sc_flags & WI_FLAGS_OUTRANGE)) {
 855                 ieee80211_drain_mgtq(&ic->ic_mgtq);
 856                 ifq_purge(&ifp->if_snd);
 857                 return;
 858         }
 859
 860         memset(&frmhdr, 0, sizeof(frmhdr));
 861         cur = sc->sc_txnext;
 862         for (;;) {
 863                 IF_POLL(&ic->ic_mgtq, m0);
 864                 if (m0 != NULL) {
 865                         if (sc->sc_txd[cur].d_len != 0) {
 866                                 ifp->if_flags |= IFF_OACTIVE;
 867                                 break;
 868                         }
 869                         IF_DEQUEUE(&ic->ic_mgtq, m0);
 870                         /*
 871                          * Hack!  The referenced node pointer is in the
 872                          * rcvif field of the packet header.  This is
 873                          * placed there by ieee80211_mgmt_output because
 874                          * we need to hold the reference with the frame
 875                          * and there's no other way (other than packet
 876                          * tags which we consider too expensive to use)
 877                          * to pass it along.
 878                          */
 879                         ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
 880                         m0->m_pkthdr.rcvif = NULL;
 881
 882                         m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
 883                             (caddr_t)&frmhdr.wi_ehdr);
 884                         frmhdr.wi_ehdr.ether_type = 0;
 885                         wh = mtod(m0, struct ieee80211_frame *);
 886                 } else {
 887                         struct ether_header *eh;
 888
 889                         if (ic->ic_state != IEEE80211_S_RUN) {
 890                                 ifq_purge(&ifp->if_snd);
 891                                 break;
 892                         }
 893
 894                         if (sc->sc_txd[cur].d_len != 0) {
 895                                 ifp->if_flags |= IFF_OACTIVE;
 896                                 break;
 897                         }
 898
 899                         m0 = ifq_dequeue(&ifp->if_snd, NULL);
 900                         if (m0 == NULL)
 901                                 break;
 902
 903                         if (m0->m_len < sizeof(struct ether_header)) {
 904                                 m0 = m_pullup(m0, sizeof(struct ether_header));
 905                                 if (m0 == NULL) {
 906                                         ifp->if_oerrors++;
 907                                         continue;
 908                                 }
 909                         }
 910
 911                         eh = mtod(m0, struct ether_header *);
 912                         ni = ieee80211_find_txnode(ic, eh->ether_dhost);
 913                         if (ni == NULL) {
 914                                 m_freem(m0);
 915                                 ifp->if_oerrors++;
 916                                 continue;
 917                         }
 918
 919                         ifp->if_opackets++;
 920                         m_copydata(m0, 0, ETHER_HDR_LEN,
 921                             (caddr_t)&frmhdr.wi_ehdr);
 922                         BPF_MTAP(ifp, m0);
 923
 924                         m0 = ieee80211_encap(ic, m0, ni);
 925                         if (m0 == NULL) {
 926                                 ieee80211_free_node(ni);
 927                                 ifp->if_oerrors++;
 928                                 continue;
 929                         }
 930                         wh = mtod(m0, struct ieee80211_frame *);
 931                 }
 932
 933                 if (ic->ic_rawbpf != NULL)
 934                         bpf_mtap(ic->ic_rawbpf, m0);
 935
 936                 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 937                 /* XXX check key for SWCRYPT instead of using operating mode */
 938                 if ((wh->i_fc[1] & IEEE80211_FC1_WEP) &&
 939                     (sc->sc_encryption & HOST_ENCRYPT)) {
 940                         if (ieee80211_crypto_encap(ic, ni, m0) == NULL) {
 941                                 ieee80211_free_node(ni);
 942                                 m_freem(m0);
 943                                 ifp->if_oerrors++;
 944                                 continue;
 945                         }
 946                         frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 947                 }
 948
 949                 if (sc->sc_drvbpf) {
 950                         sc->sc_tx_th.wt_rate =
 951                                 ni->ni_rates.rs_rates[ni->ni_txrate];
 952                         bpf_ptap(sc->sc_drvbpf, m0, &sc->sc_tx_th,
 953                                  sc->sc_tx_th_len);
 954                 }
 955
 956                 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 957                     (caddr_t)&frmhdr.wi_whdr);
 958                 m_adj(m0, sizeof(struct ieee80211_frame));
 959                 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 960                 if (IFF_DUMPPKTS(ifp))
 961                         wi_dump_pkt(&frmhdr, NULL, -1);
 962                 fid = sc->sc_txd[cur].d_fid;
 963                 off = sizeof(frmhdr);
 964                 error = wi_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0
 965                      || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
 966                 m_freem(m0);
 967                 ieee80211_free_node(ni);
 968                 if (error) {
 969                         ifp->if_oerrors++;
 970                         continue;
 971                 }
 972                 sc->sc_txd[cur].d_len = off;
 973                 if (sc->sc_txcur == cur) {
 974                         if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
 975                                 if_printf(ifp, "xmit failed\n");
 976                                 sc->sc_txd[cur].d_len = 0;
 977                                 continue;
 978                         }
 979                         sc->sc_tx_timer = 5;
 980                         ifp->if_timer = 1;
 981                 }
 982                 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 983         }
 984 }
 985
 986 static int
 987 wi_reset(struct wi_softc *sc)
 988 {
 989         struct ieee80211com *ic = &sc->sc_ic;
 990         struct ifnet *ifp = &ic->ic_if;
 991 #define WI_INIT_TRIES 3
 992         int i;
 993         int error = 0;
 994         int tries;
 995
 996         /* Symbol firmware cannot be initialized more than once */
 997         if (sc->sc_firmware_type == WI_SYMBOL && sc->sc_reset)
 998                 return (0);
 999         if (sc->sc_firmware_type == WI_SYMBOL)
1000                 tries = 1;
1001         else
1002                 tries = WI_INIT_TRIES;
1003
1004         for (i = 0; i < tries; i++) {
1005                 if ((error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0)) == 0)
1006                         break;
1007                 DELAY(WI_DELAY * 1000);
1008         }
1009         sc->sc_reset = 1;
1010
1011         if (i == tries) {
1012                 if_printf(ifp, "init failed\n");
1013                 return (error);
1014         }
1015
1016         CSR_WRITE_2(sc, WI_INT_EN, 0);
1017         CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
1018
1019         /* Calibrate timer. */
1020         wi_write_val(sc, WI_RID_TICK_TIME, 8);
1021
1022         return (0);
1023 #undef WI_INIT_TRIES
1024 }
1025
1026 static void
1027 wi_watchdog(struct ifnet *ifp)
1028 {
1029         struct wi_softc *sc = ifp->if_softc;
1030
1031         ifp->if_timer = 0;
1032         if (!sc->sc_enabled)
1033                 return;
1034
1035         if (sc->sc_tx_timer) {
1036                 if (--sc->sc_tx_timer == 0) {
1037                         if_printf(ifp, "device timeout\n");
1038                         ifp->if_oerrors++;
1039                         wi_init(ifp->if_softc);
1040                         return;
1041                 }
1042                 ifp->if_timer = 1;
1043         }
1044
1045         if (sc->sc_scan_timer) {
1046                 if (--sc->sc_scan_timer <= WI_SCAN_WAIT - WI_SCAN_INQWAIT &&
1047                     sc->sc_firmware_type == WI_INTERSIL) {
1048                         DPRINTF((ifp, "wi_watchdog: inquire scan\n"));
1049                         wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
1050                 }
1051                 if (sc->sc_scan_timer)
1052                         ifp->if_timer = 1;
1053         }
1054
1055         /* TODO: rate control */
1056         ieee80211_watchdog(&sc->sc_ic);
1057 }
1058
1059 static int
1060 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1061 {
1062         struct wi_softc *sc = ifp->if_softc;
1063         struct ieee80211com *ic = &sc->sc_ic;
1064         struct ifreq *ifr = (struct ifreq *)data;
1065         struct ieee80211req *ireq;
1066         u_int8_t nodename[IEEE80211_NWID_LEN];
1067         int error = 0;
1068         struct wi_req wreq;
1069
1070         if (sc->wi_gone) {
1071                 error = ENODEV;
1072                 goto out;
1073         }
1074
1075         switch (cmd) {
1076         case SIOCSIFFLAGS:
1077                 /*
1078                  * Can't do promisc and hostap at the same time.  If all that's
1079                  * changing is the promisc flag, try to short-circuit a call to
1080                  * wi_init() by just setting PROMISC in the hardware.
1081                  */
1082                 if (ifp->if_flags & IFF_UP) {
1083                         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
1084                             ifp->if_flags & IFF_RUNNING) {
1085                                 if (ifp->if_flags & IFF_PROMISC &&
1086                                     !(sc->sc_if_flags & IFF_PROMISC)) {
1087                                         wi_write_val(sc, WI_RID_PROMISC, 1);
1088                                 } else if (!(ifp->if_flags & IFF_PROMISC) &&
1089                                     sc->sc_if_flags & IFF_PROMISC) {
1090                                         wi_write_val(sc, WI_RID_PROMISC, 0);
1091                                 } else {
1092                                         wi_init(sc);
1093                                 }
1094                         } else {
1095                                 wi_init(sc);
1096                         }
1097                 } else {
1098                         if (ifp->if_flags & IFF_RUNNING) {
1099                                 wi_stop(ifp, 1);
1100                         }
1101                         sc->wi_gone = 0;
1102                 }
1103                 sc->sc_if_flags = ifp->if_flags;
1104                 error = 0;
1105                 break;
1106         case SIOCADDMULTI:
1107         case SIOCDELMULTI:
1108                 error = wi_write_multi(sc);
1109                 break;
1110         case SIOCGIFGENERIC:
1111                 error = wi_get_cfg(ifp, cmd, data, cr);
1112                 break;
1113         case SIOCSIFGENERIC:
1114                 error = priv_check_cred(cr, PRIV_ROOT, NULL_CRED_OKAY);
1115                 if (error)
1116                         break;
1117                 error = wi_set_cfg(ifp, cmd, data);
1118                 break;
1119         case SIOCGPRISM2DEBUG:
1120                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1121                 if (error)
1122                         break;
1123                 if (!(ifp->if_flags & IFF_RUNNING) ||
1124                     sc->sc_firmware_type == WI_LUCENT) {
1125                         error = EIO;
1126                         break;
1127                 }
1128                 error = wi_get_debug(sc, &wreq);
1129                 if (error == 0)
1130                         error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
1131                 break;
1132         case SIOCSPRISM2DEBUG:
1133                 if ((error = priv_check_cred(cr, PRIV_ROOT, NULL_CRED_OKAY)))
1134                         goto out;
1135                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1136                 if (error)
1137                         break;
1138                 error = wi_set_debug(sc, &wreq);
1139                 break;
1140         case SIOCG80211:
1141                 ireq = (struct ieee80211req *) data;
1142                 switch (ireq->i_type) {
1143                 case IEEE80211_IOC_STATIONNAME:
1144                         ireq->i_len = sc->sc_nodelen + 1;
1145                         error = copyout(sc->sc_nodename, ireq->i_data,
1146                                         ireq->i_len);
1147                         break;
1148                 default:
1149                         error = ieee80211_ioctl(ic, cmd, data, cr);
1150                         break;
1151                 }
1152                 break;
1153         case SIOCS80211:
1154                 error = priv_check_cred(cr, PRIV_ROOT, NULL_CRED_OKAY);
1155                 if (error)
1156                         break;
1157                 ireq = (struct ieee80211req *) data;
1158                 switch (ireq->i_type) {
1159                 case IEEE80211_IOC_STATIONNAME:
1160                         if (ireq->i_val != 0 ||
1161                             ireq->i_len > IEEE80211_NWID_LEN) {
1162                                 error = EINVAL;
1163                                 break;
1164                         }
1165                         memset(nodename, 0, IEEE80211_NWID_LEN);
1166                         error = copyin(ireq->i_data, nodename, ireq->i_len);
1167                         if (error)
1168                                 break;
1169                         if (sc->sc_enabled) {
1170                                 error = wi_write_ssid(sc, WI_RID_NODENAME,
1171                                         nodename, ireq->i_len);
1172                                 if (error)
1173                                         break;
1174                         }
1175                         memcpy(sc->sc_nodename, nodename, IEEE80211_NWID_LEN);
1176                         sc->sc_nodelen = ireq->i_len;
1177                         break;
1178                 default:
1179                         error = ieee80211_ioctl(ic, cmd, data, cr);
1180                         break;
1181                 }
1182                 break;
1183         case SIOCSIFCAP:
1184                 if (ifp->if_flags & IFF_RUNNING)
1185                         wi_init(sc);
1186                 break;
1187         default:
1188                 error = ieee80211_ioctl(ic, cmd, data, cr);
1189                 break;
1190         }
1191         if (error == ENETRESET) {
1192                 if (sc->sc_enabled)
1193                         wi_init(sc);    /* XXX no error return */
1194                 error = 0;
1195         }
1196 out:
1197         return error;
1198 }
1199
1200 static int
1201 wi_media_change(struct ifnet *ifp)
1202 {
1203         struct wi_softc *sc = ifp->if_softc;
1204         int error;
1205
1206         error = ieee80211_media_change(ifp);
1207         if (error == ENETRESET) {
1208                 if (sc->sc_enabled)
1209                         wi_init(sc);    /* XXX no error return */
1210                 error = 0;
1211         }
1212         return error;
1213 }
1214
1215 static void
1216 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
1217 {
1218         struct wi_softc *sc = ifp->if_softc;
1219         struct ieee80211com *ic = &sc->sc_ic;
1220         u_int16_t val;
1221         int rate, len;
1222
1223         if (sc->wi_gone) {      /* hardware gone (e.g. ejected) */
1224                 imr->ifm_active = IFM_IEEE80211 | IFM_NONE;
1225                 imr->ifm_status = 0;
1226                 return;
1227         }
1228
1229         imr->ifm_status = IFM_AVALID;
1230         imr->ifm_active = IFM_IEEE80211;
1231         if (!sc->sc_enabled) {  /* port !enabled, have no status */
1232                 imr->ifm_active |= IFM_NONE;
1233                 return;
1234         }
1235         if (ic->ic_state == IEEE80211_S_RUN &&
1236             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0)
1237                 imr->ifm_status |= IFM_ACTIVE;
1238         len = sizeof(val);
1239         if (wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 &&
1240             len == sizeof(val)) {
1241                 /* convert to 802.11 rate */
1242                 val = le16toh(val);
1243                 rate = val * 2;
1244                 if (sc->sc_firmware_type == WI_LUCENT) {
1245                         if (rate == 10)
1246                                 rate = 11;      /* 5.5Mbps */
1247                 } else {
1248                         if (rate == 4*2)
1249                                 rate = 11;      /* 5.5Mbps */
1250                         else if (rate == 8*2)
1251                                 rate = 22;      /* 11Mbps */
1252                 }
1253         } else {
1254                 rate = 0;
1255         }
1256         imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B);
1257         switch (ic->ic_opmode) {
1258         case IEEE80211_M_STA:
1259                 break;
1260         case IEEE80211_M_IBSS:
1261                 imr->ifm_active |= IFM_IEEE80211_ADHOC;
1262                 break;
1263         case IEEE80211_M_AHDEMO:
1264                 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0;
1265                 break;
1266         case IEEE80211_M_HOSTAP:
1267                 imr->ifm_active |= IFM_IEEE80211_HOSTAP;
1268                 break;
1269         case IEEE80211_M_MONITOR:
1270                 imr->ifm_active |= IFM_IEEE80211_MONITOR;
1271                 break;
1272         }
1273 }
1274
1275 static void
1276 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
1277 {
1278         struct ieee80211com *ic = &sc->sc_ic;
1279         struct ieee80211_node *ni = ic->ic_bss;
1280         struct ifnet *ifp = &ic->ic_if;
1281
1282         if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
1283                 return;
1284
1285         DPRINTF((ifp, "wi_sync_bssid: bssid %6D -> %6D ?\n", ni->ni_bssid, ":",
1286             new_bssid, ":"));
1287
1288         /* In promiscuous mode, the BSSID field is not a reliable
1289          * indicator of the firmware's BSSID. Damp spurious
1290          * change-of-BSSID indications.
1291          */
1292         if ((ifp->if_flags & IFF_PROMISC) != 0 &&
1293             !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns,
1294                          WI_MAX_FALSE_SYNS))
1295                 return;
1296
1297         sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1);
1298         /*
1299          * XXX hack; we should create a new node with the new bssid
1300          * and replace the existing ic_bss with it but since we don't
1301          * process management frames to collect state we cheat by
1302          * reusing the existing node as we know wi_newstate will be
1303          * called and it will overwrite the node state.
1304          */
1305         ieee80211_sta_join(ic, ieee80211_ref_node(ni));
1306 }
1307
1308 static void
1309 wi_rx_monitor(struct wi_softc *sc, int fid)
1310 {
1311         struct ieee80211com *ic = &sc->sc_ic;
1312         struct ifnet *ifp = &ic->ic_if;
1313         struct wi_frame *rx_frame;
1314         struct mbuf *m;
1315         int datlen, hdrlen;
1316
1317         /* first allocate mbuf for packet storage */
1318         m = m_getcl(MB_DONTWAIT, MT_DATA, 0);
1319         if (m == NULL) {
1320                 ifp->if_ierrors++;
1321                 return;
1322         }
1323
1324         m->m_pkthdr.rcvif = ifp;
1325
1326         /* now read wi_frame first so we know how much data to read */
1327         if (wi_read_bap(sc, fid, 0, mtod(m, caddr_t), sizeof(*rx_frame))) {
1328                 ifp->if_ierrors++;
1329                 goto done;
1330         }
1331
1332         rx_frame = mtod(m, struct wi_frame *);
1333
1334         switch ((rx_frame->wi_status & WI_STAT_MAC_PORT) >> 8) {
1335         case 7:
1336                 switch (rx_frame->wi_whdr.i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
1337                 case IEEE80211_FC0_TYPE_DATA:
1338                         hdrlen = WI_DATA_HDRLEN;
1339                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1340                         break;
1341                 case IEEE80211_FC0_TYPE_MGT:
1342                         hdrlen = WI_MGMT_HDRLEN;
1343                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1344                         break;
1345                 case IEEE80211_FC0_TYPE_CTL:
1346                         /*
1347                          * prism2 cards don't pass control packets
1348                          * down properly or consistently, so we'll only
1349                          * pass down the header.
1350                          */
1351                         hdrlen = WI_CTL_HDRLEN;
1352                         datlen = 0;
1353                         break;
1354                 default:
1355                         if_printf(ifp, "received packet of unknown type "
1356                                 "on port 7\n");
1357                         ifp->if_ierrors++;
1358                         goto done;
1359                 }
1360                 break;
1361         case 0:
1362                 hdrlen = WI_DATA_HDRLEN;
1363                 datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1364                 break;
1365         default:
1366                 if_printf(ifp, "received packet on invalid "
1367                     "port (wi_status=0x%x)\n", rx_frame->wi_status);
1368                 ifp->if_ierrors++;
1369                 goto done;
1370         }
1371
1372         if (hdrlen + datlen + 2 > MCLBYTES) {
1373                 if_printf(ifp, "oversized packet received "
1374                     "(wi_dat_len=%d, wi_status=0x%x)\n",
1375                     datlen, rx_frame->wi_status);
1376                 ifp->if_ierrors++;
1377                 goto done;
1378         }
1379
1380         if (wi_read_bap(sc, fid, hdrlen, mtod(m, caddr_t) + hdrlen,
1381             datlen + 2) == 0) {
1382                 m->m_pkthdr.len = m->m_len = hdrlen + datlen;
1383                 ifp->if_ipackets++;
1384                 BPF_MTAP(ifp, m);       /* Handle BPF listeners. */
1385         } else
1386                 ifp->if_ierrors++;
1387 done:
1388         m_freem(m);
1389 }
1390
1391 static void
1392 wi_rx_intr(struct wi_softc *sc)
1393 {
1394         struct ieee80211com *ic = &sc->sc_ic;
1395         struct ifnet *ifp = &ic->ic_if;
1396         struct wi_frame frmhdr;
1397         struct mbuf *m;
1398         struct ieee80211_frame *wh;
1399         struct ieee80211_node *ni;
1400         int fid, len, off, rssi;
1401         u_int8_t dir;
1402         u_int16_t status;
1403         u_int32_t rstamp;
1404
1405         fid = CSR_READ_2(sc, WI_RX_FID);
1406
1407         if (sc->wi_debug.wi_monitor) {
1408                 /*
1409                  * If we are in monitor mode just
1410                  * read the data from the device.
1411                  */
1412                 wi_rx_monitor(sc, fid);
1413                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1414                 return;
1415         }
1416
1417         /* First read in the frame header */
1418         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
1419                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1420                 ifp->if_ierrors++;
1421                 DPRINTF((ifp, "wi_rx_intr: read fid %x failed\n", fid));
1422                 return;
1423         }
1424
1425         if (IFF_DUMPPKTS(ifp))
1426                 wi_dump_pkt(&frmhdr, NULL, frmhdr.wi_rx_signal);
1427
1428         /*
1429          * Drop undecryptable or packets with receive errors here
1430          */
1431         status = le16toh(frmhdr.wi_status);
1432         if (status & WI_STAT_ERRSTAT) {
1433                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1434                 ifp->if_ierrors++;
1435                 DPRINTF((ifp, "wi_rx_intr: fid %x error status %x\n",
1436                          fid, status));
1437                 return;
1438         }
1439         rssi = frmhdr.wi_rx_signal;
1440         rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
1441             le16toh(frmhdr.wi_rx_tstamp1);
1442
1443         len = le16toh(frmhdr.wi_dat_len);
1444         off = ALIGN(sizeof(struct ieee80211_frame));
1445
1446         /*
1447          * Sometimes the PRISM2.x returns bogusly large frames. Except
1448          * in monitor mode, just throw them away.
1449          */
1450         if (off + len > MCLBYTES) {
1451                 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1452                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1453                         ifp->if_ierrors++;
1454                         DPRINTF((ifp, "wi_rx_intr: oversized packet\n"));
1455                         return;
1456                 } else
1457                         len = 0;
1458         }
1459
1460         m = m_getl(off + len, MB_DONTWAIT, MT_DATA, M_PKTHDR, NULL);
1461         if (m == NULL) {
1462                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1463                 ifp->if_ierrors++;
1464                 DPRINTF((ifp, "wi_rx_intr: m_getl failed\n"));
1465                 return;
1466         }
1467
1468         m->m_data += off - sizeof(struct ieee80211_frame);
1469         memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
1470         wi_read_bap(sc, fid, sizeof(frmhdr),
1471             m->m_data + sizeof(struct ieee80211_frame), len);
1472         m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
1473         m->m_pkthdr.rcvif = ifp;
1474
1475         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1476
1477         wh = mtod(m, struct ieee80211_frame *);
1478         if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1479                 /*
1480                  * WEP is decrypted by hardware and the IV
1481                  * is stripped.  Clear WEP bit so we don't
1482                  * try to process it in ieee80211_input.
1483                  * XXX fix for TKIP, et. al.
1484                  */
1485                 wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
1486         }
1487
1488         if (sc->sc_drvbpf) {
1489                 /* XXX replace divide by table */
1490                 sc->sc_rx_th.wr_rate = frmhdr.wi_rx_rate / 5;
1491                 sc->sc_rx_th.wr_antsignal = frmhdr.wi_rx_signal;
1492                 sc->sc_rx_th.wr_antnoise = frmhdr.wi_rx_silence;
1493                 sc->sc_rx_th.wr_flags = 0;
1494                 if (frmhdr.wi_status & WI_STAT_PCF)
1495                         sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_CFP;
1496                 bpf_ptap(sc->sc_drvbpf, m, &sc->sc_rx_th, sc->sc_rx_th_len);
1497         }
1498
1499         /* synchronize driver's BSSID with firmware's BSSID */
1500         dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
1501         if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
1502                 wi_sync_bssid(sc, wh->i_addr3);
1503
1504         /*
1505          * Locate the node for sender, track state, and
1506          * then pass this node (referenced) up to the 802.11
1507          * layer for its use.
1508          */
1509         ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *) wh);
1510         /*
1511          * Send frame up for processing.
1512          */
1513         ieee80211_input(ic, m, ni, rssi, rstamp);
1514         /*
1515          * The frame may have caused the node to be marked for
1516          * reclamation (e.g. in response to a DEAUTH message)
1517          * so use free_node here instead of unref_node.
1518          */
1519         ieee80211_free_node(ni);
1520 }
1521
1522 static void
1523 wi_tx_ex_intr(struct wi_softc *sc)
1524 {
1525         struct ieee80211com *ic = &sc->sc_ic;
1526         struct ifnet *ifp = &ic->ic_if;
1527         struct wi_frame frmhdr;
1528         int fid;
1529
1530         fid = CSR_READ_2(sc, WI_TX_CMP_FID);
1531         /* Read in the frame header */
1532         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
1533                 u_int16_t status = le16toh(frmhdr.wi_status);
1534
1535                 /*
1536                  * Spontaneous station disconnects appear as xmit
1537                  * errors.  Don't announce them and/or count them
1538                  * as an output error.
1539                  */
1540                 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
1541                         if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
1542                                 if_printf(ifp, "tx failed");
1543                                 if (status & WI_TXSTAT_RET_ERR)
1544                                         kprintf(", retry limit exceeded");
1545                                 if (status & WI_TXSTAT_AGED_ERR)
1546                                         kprintf(", max transmit lifetime exceeded");
1547                                 if (status & WI_TXSTAT_DISCONNECT)
1548                                         kprintf(", port disconnected");
1549                                 if (status & WI_TXSTAT_FORM_ERR)
1550                                         kprintf(", invalid format (data len %u src %6D)",
1551                                                 le16toh(frmhdr.wi_dat_len),
1552                                                 frmhdr.wi_ehdr.ether_shost, ":");
1553                                 if (status & ~0xf)
1554                                         kprintf(", status=0x%x", status);
1555                                 kprintf("\n");
1556                         }
1557                         ifp->if_oerrors++;
1558                 } else {
1559                         DPRINTF((ifp, "port disconnected\n"));
1560                         ifp->if_collisions++;   /* XXX */
1561                 }
1562         } else
1563                 DPRINTF((ifp, "wi_tx_ex_intr: read fid %x failed\n", fid));
1564         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
1565 }
1566
1567 static void
1568 wi_tx_intr(struct wi_softc *sc)
1569 {
1570         struct ieee80211com *ic = &sc->sc_ic;
1571         struct ifnet *ifp = &ic->ic_if;
1572         int fid, cur;
1573
1574         if (sc->wi_gone)
1575                 return;
1576
1577         fid = CSR_READ_2(sc, WI_ALLOC_FID);
1578         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1579
1580         cur = sc->sc_txcur;
1581         if (sc->sc_txd[cur].d_fid != fid) {
1582                 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n",
1583                     fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
1584                 return;
1585         }
1586         sc->sc_tx_timer = 0;
1587         sc->sc_txd[cur].d_len = 0;
1588         sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
1589         if (sc->sc_txd[cur].d_len == 0)
1590                 ifp->if_flags &= ~IFF_OACTIVE;
1591         else {
1592                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
1593                     0, 0)) {
1594                         if_printf(ifp, "xmit failed\n");
1595                         sc->sc_txd[cur].d_len = 0;
1596                 } else {
1597                         sc->sc_tx_timer = 5;
1598                         ifp->if_timer = 1;
1599                 }
1600         }
1601 }
1602
1603 static void
1604 wi_info_intr(struct wi_softc *sc)
1605 {
1606         struct ieee80211com *ic = &sc->sc_ic;
1607         struct ifnet *ifp = &ic->ic_if;
1608         int i, fid, len, off;
1609         u_int16_t ltbuf[2];
1610         u_int16_t stat;
1611         u_int32_t *ptr;
1612
1613         fid = CSR_READ_2(sc, WI_INFO_FID);
1614         wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
1615
1616         switch (le16toh(ltbuf[1])) {
1617
1618         case WI_INFO_LINK_STAT:
1619                 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
1620                 DPRINTF((ifp, "wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
1621                 switch (le16toh(stat)) {
1622                 case WI_INFO_LINK_STAT_CONNECTED:
1623                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1624                         if (ic->ic_state == IEEE80211_S_RUN &&
1625                             ic->ic_opmode != IEEE80211_M_IBSS)
1626                                 break;
1627                         /* FALLTHROUGH */
1628                 case WI_INFO_LINK_STAT_AP_CHG:
1629                         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1630                         break;
1631                 case WI_INFO_LINK_STAT_AP_INR:
1632                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1633                         break;
1634                 case WI_INFO_LINK_STAT_AP_OOR:
1635                         if (sc->sc_firmware_type == WI_SYMBOL &&
1636                             sc->sc_scan_timer > 0) {
1637                                 if (wi_cmd(sc, WI_CMD_INQUIRE,
1638                                     WI_INFO_HOST_SCAN_RESULTS, 0, 0) != 0)
1639                                         sc->sc_scan_timer = 0;
1640                                 break;
1641                         }
1642                         if (ic->ic_opmode == IEEE80211_M_STA)
1643                                 sc->sc_flags |= WI_FLAGS_OUTRANGE;
1644                         break;
1645                 case WI_INFO_LINK_STAT_DISCONNECTED:
1646                 case WI_INFO_LINK_STAT_ASSOC_FAILED:
1647                         if (ic->ic_opmode == IEEE80211_M_STA)
1648                                 ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
1649                         break;
1650                 }
1651                 break;
1652
1653         case WI_INFO_COUNTERS:
1654                 /* some card versions have a larger stats structure */
1655                 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
1656                 ptr = (u_int32_t *)&sc->sc_stats;
1657                 off = sizeof(ltbuf);
1658                 for (i = 0; i < len; i++, off += 2, ptr++) {
1659                         wi_read_bap(sc, fid, off, &stat, sizeof(stat));
1660 #ifdef WI_HERMES_STATS_WAR
1661                         if (stat & 0xf000)
1662                                 stat = ~stat;
1663 #endif
1664                         *ptr += stat;
1665                 }
1666                 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries +
1667                     sc->sc_stats.wi_tx_multi_retries +
1668                     sc->sc_stats.wi_tx_retry_limit;
1669                 break;
1670
1671         case WI_INFO_SCAN_RESULTS:
1672         case WI_INFO_HOST_SCAN_RESULTS:
1673                 wi_scan_result(sc, fid, le16toh(ltbuf[0]));
1674                 break;
1675
1676         default:
1677                 DPRINTF((ifp, "wi_info_intr: got fid %x type %x len %d\n", fid,
1678                     le16toh(ltbuf[1]), le16toh(ltbuf[0])));
1679                 break;
1680         }
1681         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
1682 }
1683
1684 static int
1685 wi_write_multi(struct wi_softc *sc)
1686 {
1687         struct ifnet *ifp = &sc->sc_ic.ic_if;
1688         int n;
1689         struct ifmultiaddr *ifma;
1690         struct wi_mcast mlist;
1691
1692         if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1693 allmulti:
1694                 memset(&mlist, 0, sizeof(mlist));
1695                 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1696                     sizeof(mlist));
1697         }
1698
1699         n = 0;
1700         LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1701                 if (ifma->ifma_addr->sa_family != AF_LINK)
1702                         continue;
1703                 if (n >= 16)
1704                         goto allmulti;
1705                 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
1706                     (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
1707                 n++;
1708         }
1709         return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1710             IEEE80211_ADDR_LEN * n);
1711 }
1712
1713 static void
1714 wi_read_nicid(struct wi_softc *sc)
1715 {
1716         struct wi_card_ident *id;
1717         char *p;
1718         int len;
1719         u_int16_t ver[4];
1720
1721         /* getting chip identity */
1722         memset(ver, 0, sizeof(ver));
1723         len = sizeof(ver);
1724         wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
1725         if_printf(&sc->sc_ic.ic_if, "using ");
1726
1727         sc->sc_firmware_type = WI_NOTYPE;
1728         for (id = wi_card_ident; id->card_name != NULL; id++) {
1729                 if (le16toh(ver[0]) == id->card_id) {
1730                         kprintf("%s", id->card_name);
1731                         sc->sc_firmware_type = id->firm_type;
1732                         break;
1733                 }
1734         }
1735         if (sc->sc_firmware_type == WI_NOTYPE) {
1736                 if (le16toh(ver[0]) & 0x8000) {
1737                         kprintf("Unknown PRISM2 chip");
1738                         sc->sc_firmware_type = WI_INTERSIL;
1739                 } else {
1740                         kprintf("Unknown Lucent chip");
1741                         sc->sc_firmware_type = WI_LUCENT;
1742                 }
1743         }
1744
1745         /* get primary firmware version (Only Prism chips) */
1746         if (sc->sc_firmware_type != WI_LUCENT) {
1747                 memset(ver, 0, sizeof(ver));
1748                 len = sizeof(ver);
1749                 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
1750                 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
1751                     le16toh(ver[3]) * 100 + le16toh(ver[1]);
1752         }
1753
1754         /* get station firmware version */
1755         memset(ver, 0, sizeof(ver));
1756         len = sizeof(ver);
1757         wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
1758         sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
1759             le16toh(ver[3]) * 100 + le16toh(ver[1]);
1760         if (sc->sc_firmware_type == WI_INTERSIL &&
1761             (sc->sc_sta_firmware_ver == 10102 ||
1762              sc->sc_sta_firmware_ver == 20102)) {
1763                 char ident[12];
1764                 memset(ident, 0, sizeof(ident));
1765                 len = sizeof(ident);
1766                 /* value should be the format like "V2.00-11" */
1767                 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
1768                     *(p = (char *)ident) >= 'A' &&
1769                     p[2] == '.' && p[5] == '-' && p[8] == '\0') {
1770                         sc->sc_firmware_type = WI_SYMBOL;
1771                         sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 +
1772                             (p[3] - '0') * 1000 + (p[4] - '0') * 100 +
1773                             (p[6] - '0') * 10 + (p[7] - '0');
1774                 }
1775         }
1776         kprintf("\n");
1777         if_printf(&sc->sc_ic.ic_if, "%s Firmware: ",
1778              sc->sc_firmware_type == WI_LUCENT ? "Lucent" :
1779             (sc->sc_firmware_type == WI_SYMBOL ? "Symbol" : "Intersil"));
1780         if (sc->sc_firmware_type != WI_LUCENT)  /* XXX */
1781                 kprintf("Primary (%u.%u.%u), ",
1782                     sc->sc_pri_firmware_ver / 10000,
1783                     (sc->sc_pri_firmware_ver % 10000) / 100,
1784                     sc->sc_pri_firmware_ver % 100);
1785         kprintf("Station (%u.%u.%u)\n",
1786             sc->sc_sta_firmware_ver / 10000,
1787             (sc->sc_sta_firmware_ver % 10000) / 100,
1788             sc->sc_sta_firmware_ver % 100);
1789 }
1790
1791 static int
1792 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
1793 {
1794         struct wi_ssid ssid;
1795
1796         if (buflen > IEEE80211_NWID_LEN)
1797                 return ENOBUFS;
1798         memset(&ssid, 0, sizeof(ssid));
1799         ssid.wi_len = htole16(buflen);
1800         memcpy(ssid.wi_ssid, buf, buflen);
1801         return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
1802 }
1803
1804 static int
1805 wi_get_cfg(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1806 {
1807         struct wi_softc *sc = ifp->if_softc;
1808         struct ieee80211com *ic = &sc->sc_ic;
1809         struct ifreq *ifr = (struct ifreq *)data;
1810         struct wi_req wreq;
1811         struct wi_scan_res *res;
1812         size_t reslen;
1813         int len, n, error, mif, val, off, i;
1814
1815         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1816         if (error)
1817                 return error;
1818         len = (wreq.wi_len - 1) * 2;
1819         if (len < sizeof(u_int16_t))
1820                 return ENOSPC;
1821         if (len > sizeof(wreq.wi_val))
1822                 len = sizeof(wreq.wi_val);
1823
1824         switch (wreq.wi_type) {
1825
1826         case WI_RID_IFACE_STATS:
1827                 memcpy(wreq.wi_val, &sc->sc_stats, sizeof(sc->sc_stats));
1828                 if (len < sizeof(sc->sc_stats))
1829                         error = ENOSPC;
1830                 else
1831                         len = sizeof(sc->sc_stats);
1832                 break;
1833
1834         case WI_RID_ENCRYPTION:
1835         case WI_RID_TX_CRYPT_KEY:
1836         case WI_RID_DEFLT_CRYPT_KEYS:
1837         case WI_RID_TX_RATE:
1838                 return ieee80211_cfgget(ic, cmd, data, cr);
1839
1840         case WI_RID_MICROWAVE_OVEN:
1841                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_MOR)) {
1842                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1843                             &len);
1844                         break;
1845                 }
1846                 wreq.wi_val[0] = htole16(sc->sc_microwave_oven);
1847                 len = sizeof(u_int16_t);
1848                 break;
1849
1850         case WI_RID_DBM_ADJUST:
1851                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_DBMADJUST)) {
1852                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1853                             &len);
1854                         break;
1855                 }
1856                 wreq.wi_val[0] = htole16(sc->sc_dbm_offset);
1857                 len = sizeof(u_int16_t);
1858                 break;
1859
1860         case WI_RID_ROAMING_MODE:
1861                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_ROAMING)) {
1862                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1863                             &len);
1864                         break;
1865                 }
1866                 wreq.wi_val[0] = htole16(sc->sc_roaming_mode);
1867                 len = sizeof(u_int16_t);
1868                 break;
1869
1870         case WI_RID_SYSTEM_SCALE:
1871                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)) {
1872                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1873                             &len);
1874                         break;
1875                 }
1876                 wreq.wi_val[0] = htole16(sc->sc_system_scale);
1877                 len = sizeof(u_int16_t);
1878                 break;
1879
1880         case WI_RID_FRAG_THRESH:
1881                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)) {
1882                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1883                             &len);
1884                         break;
1885                 }
1886                 wreq.wi_val[0] = htole16(ic->ic_fragthreshold);
1887                 len = sizeof(u_int16_t);
1888                 break;
1889
1890         case WI_RID_READ_APS:
1891                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1892                         return ieee80211_cfgget(ic, cmd, data, cr);
1893                 if (sc->sc_scan_timer > 0) {
1894                         error = EINPROGRESS;
1895                         break;
1896                 }
1897                 n = sc->sc_naps;
1898                 if (len < sizeof(n)) {
1899                         error = ENOSPC;
1900                         break;
1901                 }
1902                 if (len < sizeof(n) + sizeof(struct wi_apinfo) * n)
1903                         n = (len - sizeof(n)) / sizeof(struct wi_apinfo);
1904                 len = sizeof(n) + sizeof(struct wi_apinfo) * n;
1905                 memcpy(wreq.wi_val, &n, sizeof(n));
1906                 memcpy((caddr_t)wreq.wi_val + sizeof(n), sc->sc_aps,
1907                     sizeof(struct wi_apinfo) * n);
1908                 break;
1909
1910         case WI_RID_PRISM2:
1911                 wreq.wi_val[0] = sc->sc_firmware_type != WI_LUCENT;
1912                 len = sizeof(u_int16_t);
1913                 break;
1914
1915         case WI_RID_MIF:
1916                 mif = wreq.wi_val[0];
1917                 error = wi_cmd(sc, WI_CMD_READMIF, mif, 0, 0);
1918                 val = CSR_READ_2(sc, WI_RESP0);
1919                 wreq.wi_val[0] = val;
1920                 len = sizeof(u_int16_t);
1921                 break;
1922
1923         case WI_RID_ZERO_CACHE:
1924         case WI_RID_PROCFRAME:          /* ignore for compatibility */
1925                 /* XXX ??? */
1926                 break;
1927
1928         case WI_RID_READ_CACHE:
1929                 return ieee80211_cfgget(ic, cmd, data, cr);
1930
1931         case WI_RID_SCAN_RES:           /* compatibility interface */
1932                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1933                         return ieee80211_cfgget(ic, cmd, data, cr);
1934                 if (sc->sc_scan_timer > 0) {
1935                         error = EINPROGRESS;
1936                         break;
1937                 }
1938                 n = sc->sc_naps;
1939                 if (sc->sc_firmware_type == WI_LUCENT) {
1940                         off = 0;
1941                         reslen = WI_WAVELAN_RES_SIZE;
1942                 } else {
1943                         off = sizeof(struct wi_scan_p2_hdr);
1944                         reslen = WI_PRISM2_RES_SIZE;
1945                 }
1946                 if (len < off + reslen * n)
1947                         n = (len - off) / reslen;
1948                 len = off + reslen * n;
1949                 if (off != 0) {
1950                         struct wi_scan_p2_hdr *p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1951                         /*
1952                          * Prepend Prism-specific header.
1953                          */
1954                         if (len < sizeof(struct wi_scan_p2_hdr)) {
1955                                 error = ENOSPC;
1956                                 break;
1957                         }
1958                         p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1959                         p2->wi_rsvd = 0;
1960                         p2->wi_reason = n;      /* XXX */
1961                 }
1962                 for (i = 0; i < n; i++, off += reslen) {
1963                         const struct wi_apinfo *ap = &sc->sc_aps[i];
1964
1965                         res = (struct wi_scan_res *)((char *)wreq.wi_val + off);
1966                         res->wi_chan = ap->channel;
1967                         res->wi_noise = ap->noise;
1968                         res->wi_signal = ap->signal;
1969                         IEEE80211_ADDR_COPY(res->wi_bssid, ap->bssid);
1970                         res->wi_interval = ap->interval;
1971                         res->wi_capinfo = ap->capinfo;
1972                         res->wi_ssid_len = ap->namelen;
1973                         memcpy(res->wi_ssid, ap->name,
1974                                 IEEE80211_NWID_LEN);
1975                         if (sc->sc_firmware_type != WI_LUCENT) {
1976                                 /* XXX not saved from Prism cards */
1977                                 memset(res->wi_srates, 0,
1978                                         sizeof(res->wi_srates));
1979                                 res->wi_rate = ap->rate;
1980                                 res->wi_rsvd = 0;
1981                         }
1982                 }
1983                 break;
1984
1985         default:
1986                 if (sc->sc_enabled) {
1987                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1988                             &len);
1989                         break;
1990                 }
1991                 switch (wreq.wi_type) {
1992                 case WI_RID_MAX_DATALEN:
1993                         wreq.wi_val[0] = htole16(sc->sc_max_datalen);
1994                         len = sizeof(u_int16_t);
1995                         break;
1996                 case WI_RID_RTS_THRESH:
1997                         wreq.wi_val[0] = htole16(ic->ic_rtsthreshold);
1998                         len = sizeof(u_int16_t);
1999                         break;
2000                 case WI_RID_CNFAUTHMODE:
2001                         wreq.wi_val[0] = htole16(sc->sc_cnfauthmode);
2002                         len = sizeof(u_int16_t);
2003                         break;
2004                 case WI_RID_NODENAME:
2005                         if (len < sc->sc_nodelen + sizeof(u_int16_t)) {
2006                                 error = ENOSPC;
2007                                 break;
2008                         }
2009                         len = sc->sc_nodelen + sizeof(u_int16_t);
2010                         wreq.wi_val[0] = htole16((sc->sc_nodelen + 1) / 2);
2011                         memcpy(&wreq.wi_val[1], sc->sc_nodename,
2012                             sc->sc_nodelen);
2013                         break;
2014                 default:
2015                         return ieee80211_cfgget(ic, cmd, data, cr);
2016                 }
2017                 break;
2018         }
2019         if (error)
2020                 return error;
2021         wreq.wi_len = (len + 1) / 2 + 1;
2022         return copyout(&wreq, ifr->ifr_data, (wreq.wi_len + 1) * 2);
2023 }
2024
2025 static int
2026 wi_set_cfg(struct ifnet *ifp, u_long cmd, caddr_t data)
2027 {
2028         struct wi_softc *sc = ifp->if_softc;
2029         struct ieee80211com *ic = &sc->sc_ic;
2030         struct ifreq *ifr = (struct ifreq *)data;
2031         struct wi_req wreq;
2032         struct mbuf *m;
2033         int i, len, error, mif, val;
2034         struct ieee80211_rateset *rs;
2035
2036         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
2037         if (error)
2038                 return error;
2039         len = wreq.wi_len ? (wreq.wi_len - 1) * 2 : 0;
2040         switch (wreq.wi_type) {
2041         case WI_RID_DBM_ADJUST:
2042                 return ENODEV;
2043
2044         case WI_RID_NODENAME:
2045                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2046                     le16toh(wreq.wi_val[0]) > sizeof(sc->sc_nodename)) {
2047                         error = ENOSPC;
2048                         break;
2049                 }
2050                 if (sc->sc_enabled) {
2051                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2052                             len);
2053                         if (error)
2054                                 break;
2055                 }
2056                 sc->sc_nodelen = le16toh(wreq.wi_val[0]) * 2;
2057                 memcpy(sc->sc_nodename, &wreq.wi_val[1], sc->sc_nodelen);
2058                 break;
2059
2060         case WI_RID_MICROWAVE_OVEN:
2061         case WI_RID_ROAMING_MODE:
2062         case WI_RID_SYSTEM_SCALE:
2063         case WI_RID_FRAG_THRESH:
2064                 if (wreq.wi_type == WI_RID_MICROWAVE_OVEN &&
2065                     (sc->sc_flags & WI_FLAGS_HAS_MOR) == 0)
2066                         break;
2067                 if (wreq.wi_type == WI_RID_ROAMING_MODE &&
2068                     (sc->sc_flags & WI_FLAGS_HAS_ROAMING) == 0)
2069                         break;
2070                 if (wreq.wi_type == WI_RID_SYSTEM_SCALE &&
2071                     (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) == 0)
2072                         break;
2073                 if (wreq.wi_type == WI_RID_FRAG_THRESH &&
2074                     (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) == 0)
2075                         break;
2076                 /* FALLTHROUGH */
2077         case WI_RID_RTS_THRESH:
2078         case WI_RID_CNFAUTHMODE:
2079         case WI_RID_MAX_DATALEN:
2080                 if (sc->sc_enabled) {
2081                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2082                             sizeof(u_int16_t));
2083                         if (error)
2084                                 break;
2085                 }
2086                 switch (wreq.wi_type) {
2087                 case WI_RID_FRAG_THRESH:
2088                         ic->ic_fragthreshold = le16toh(wreq.wi_val[0]);
2089                         break;
2090                 case WI_RID_RTS_THRESH:
2091                         ic->ic_rtsthreshold = le16toh(wreq.wi_val[0]);
2092                         break;
2093                 case WI_RID_MICROWAVE_OVEN:
2094                         sc->sc_microwave_oven = le16toh(wreq.wi_val[0]);
2095                         break;
2096                 case WI_RID_ROAMING_MODE:
2097                         sc->sc_roaming_mode = le16toh(wreq.wi_val[0]);
2098                         break;
2099                 case WI_RID_SYSTEM_SCALE:
2100                         sc->sc_system_scale = le16toh(wreq.wi_val[0]);
2101                         break;
2102                 case WI_RID_CNFAUTHMODE:
2103                         sc->sc_cnfauthmode = le16toh(wreq.wi_val[0]);
2104                         break;
2105                 case WI_RID_MAX_DATALEN:
2106                         sc->sc_max_datalen = le16toh(wreq.wi_val[0]);
2107                         break;
2108                 }
2109                 break;
2110
2111         case WI_RID_TX_RATE:
2112                 switch (le16toh(wreq.wi_val[0])) {
2113                 case 3:
2114                         ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE;
2115                         break;
2116                 default:
2117                         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
2118                         for (i = 0; i < rs->rs_nrates; i++) {
2119                                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL)
2120                                     / 2 == le16toh(wreq.wi_val[0]))
2121                                         break;
2122                         }
2123                         if (i == rs->rs_nrates)
2124                                 return EINVAL;
2125                         ic->ic_fixed_rate = i;
2126                 }
2127                 if (sc->sc_enabled)
2128                         error = wi_write_txrate(sc);
2129                 break;
2130
2131         case WI_RID_SCAN_APS:
2132                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2133                         error = wi_scan_ap(sc, 0x3fff, 0x000f);
2134                 break;
2135
2136         case WI_RID_SCAN_REQ:           /* compatibility interface */
2137                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2138                         error = wi_scan_ap(sc, wreq.wi_val[0], wreq.wi_val[1]);
2139                 break;
2140
2141         case WI_RID_MGMT_XMIT:
2142                 if (!sc->sc_enabled) {
2143                         error = ENETDOWN;
2144                         break;
2145                 }
2146                 if (ic->ic_mgtq.ifq_len > 5) {
2147                         error = EAGAIN;
2148                         break;
2149                 }
2150                 /* XXX wi_len looks in u_int8_t, not in u_int16_t */
2151                 m = m_devget((char *)&wreq.wi_val, wreq.wi_len, 0, ifp, NULL);
2152                 if (m == NULL) {
2153                         error = ENOMEM;
2154                         break;
2155                 }
2156                 IF_ENQUEUE(&ic->ic_mgtq, m);
2157                 break;
2158
2159         case WI_RID_MIF:
2160                 mif = wreq.wi_val[0];
2161                 val = wreq.wi_val[1];
2162                 error = wi_cmd(sc, WI_CMD_WRITEMIF, mif, val, 0);
2163                 break;
2164
2165         case WI_RID_PROCFRAME:          /* ignore for compatibility */
2166                 break;
2167
2168         case WI_RID_OWN_SSID:
2169                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2170                     le16toh(wreq.wi_val[0]) > IEEE80211_NWID_LEN) {
2171                         error = ENOSPC;
2172                         break;
2173                 }
2174                 memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
2175                 ic->ic_des_esslen = le16toh(wreq.wi_val[0]) * 2;
2176                 memcpy(ic->ic_des_essid, &wreq.wi_val[1], ic->ic_des_esslen);
2177                 error = ENETRESET;
2178                 break;
2179
2180         default:
2181                 if (sc->sc_enabled) {
2182                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2183                             len);
2184                         if (error)
2185                                 break;
2186                 }
2187                 error = ieee80211_cfgset(ic, cmd, data);
2188                 break;
2189         }
2190         return error;
2191 }
2192
2193 static int
2194 wi_write_txrate(struct wi_softc *sc)
2195 {
2196         struct ieee80211com *ic = &sc->sc_ic;
2197         int i;
2198         u_int16_t rate;
2199
2200         if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE)
2201                 rate = 0;       /* auto */
2202         else
2203                 rate = (ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ic->ic_fixed_rate] &
2204                     IEEE80211_RATE_VAL) / 2;
2205
2206         /* rate: 0, 1, 2, 5, 11 */
2207
2208         switch (sc->sc_firmware_type) {
2209         case WI_LUCENT:
2210                 switch (rate) {
2211                 case 0:                 /* auto == 11mbps auto */
2212                         rate = 3;
2213                         break;
2214                 /* case 1, 2 map to 1, 2*/
2215                 case 5:                 /* 5.5Mbps -> 4 */
2216                         rate = 4;
2217                         break;
2218                 case 11:                /* 11mbps -> 5 */
2219                         rate = 5;
2220                         break;
2221                 default:
2222                         break;
2223                 }
2224                 break;
2225         default:
2226                 /* Choose a bit according to this table.
2227                  *
2228                  * bit | data rate
2229                  * ----+-------------------
2230                  * 0   | 1Mbps
2231                  * 1   | 2Mbps
2232                  * 2   | 5.5Mbps
2233                  * 3   | 11Mbps
2234                  */
2235                 for (i = 8; i > 0; i >>= 1) {
2236                         if (rate >= i)
2237                                 break;
2238                 }
2239                 if (i == 0)
2240                         rate = 0xf;     /* auto */
2241                 else
2242                         rate = i;
2243                 break;
2244         }
2245         return wi_write_val(sc, WI_RID_TX_RATE, rate);
2246 }
2247
2248 static int
2249 wi_key_alloc(struct ieee80211com *ic, const struct ieee80211_key *k,
2250         ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
2251 {
2252         struct wi_softc *sc = ic->ic_ifp->if_softc;
2253
2254         /*
2255          * When doing host encryption of outbound frames fail requests
2256          * for keys that are not marked w/ the SWCRYPT flag so the
2257          * net80211 layer falls back to s/w crypto.  Note that we also
2258          * fixup existing keys below to handle mode changes.
2259          */
2260         if ((sc->sc_encryption & HOST_ENCRYPT) &&
2261             (k->wk_flags & IEEE80211_KEY_SWCRYPT) == 0)
2262                 return 0;
2263         return sc->sc_key_alloc(ic, k, keyix, rxkeyix);
2264 }
2265
2266 static int
2267 wi_write_wep(struct wi_softc *sc)
2268 {
2269         struct ieee80211com *ic = &sc->sc_ic;
2270         int error = 0;
2271         int i, keylen;
2272         u_int16_t val;
2273         struct wi_key wkey[IEEE80211_WEP_NKID];
2274
2275         switch (sc->sc_firmware_type) {
2276         case WI_LUCENT:
2277                 val = (ic->ic_flags & IEEE80211_F_PRIVACY) ? 1 : 0;
2278                 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
2279                 if (error)
2280                         break;
2281                 if (!(ic->ic_flags & IEEE80211_F_PRIVACY))
2282                         break;
2283                 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, ic->ic_def_txkey);
2284                 if (error)
2285                         break;
2286                 memset(wkey, 0, sizeof(wkey));
2287                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2288                         keylen = ic->ic_nw_keys[i].wk_keylen;
2289                         wkey[i].wi_keylen = htole16(keylen);
2290                         memcpy(wkey[i].wi_keydat, ic->ic_nw_keys[i].wk_key,
2291                             keylen);
2292                 }
2293                 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
2294                     wkey, sizeof(wkey));
2295                 sc->sc_encryption = 0;
2296                 break;
2297
2298         case WI_INTERSIL:
2299         case WI_SYMBOL:
2300                 if (ic->ic_flags & IEEE80211_F_PRIVACY) {
2301                         /*
2302                          * ONLY HWB3163 EVAL-CARD Firmware version
2303                          * less than 0.8 variant2
2304                          *
2305                          *   If promiscuous mode disable, Prism2 chip
2306                          *  does not work with WEP .
2307                          * It is under investigation for details.
2308                          * (ichiro@netbsd.org)
2309                          */
2310                         if (sc->sc_firmware_type == WI_INTERSIL &&
2311                             sc->sc_sta_firmware_ver < 802 ) {
2312                                 /* firm ver < 0.8 variant 2 */
2313                                 wi_write_val(sc, WI_RID_PROMISC, 1);
2314                         }
2315                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2316                             sc->sc_cnfauthmode);
2317                         /* XXX should honor IEEE80211_F_DROPUNENC */
2318                         val = PRIVACY_INVOKED | EXCLUDE_UNENCRYPTED;
2319                         /*
2320                          * Encryption firmware has a bug for HostAP mode.
2321                          */
2322                         if (sc->sc_firmware_type == WI_INTERSIL &&
2323                             ic->ic_opmode == IEEE80211_M_HOSTAP)
2324                                 val |= HOST_ENCRYPT;
2325                 } else {
2326                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2327                             IEEE80211_AUTH_OPEN);
2328                         val = HOST_ENCRYPT | HOST_DECRYPT;
2329                 }
2330                 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
2331                 if (error)
2332                         break;
2333                 sc->sc_encryption = val;
2334                 if ((val & PRIVACY_INVOKED) == 0)
2335                         break;
2336                 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY,
2337                     ic->ic_def_txkey);
2338                 if (error)
2339                         break;
2340                 if (val & HOST_DECRYPT)
2341                         break;
2342                 /*
2343                  * It seems that the firmware accept 104bit key only if
2344                  * all the keys have 104bit length.  We get the length of
2345                  * the transmit key and use it for all other keys.
2346                  * Perhaps we should use software WEP for such situation.
2347                  */
2348                 if (ic->ic_def_txkey != IEEE80211_KEYIX_NONE)
2349                         keylen = ic->ic_nw_keys[ic->ic_def_txkey].wk_keylen;
2350                 else    /* XXX should not hapen */
2351                         keylen = IEEE80211_WEP_KEYLEN;
2352                 if (keylen > IEEE80211_WEP_KEYLEN)
2353                         keylen = 13;    /* 104bit keys */
2354                 else
2355                         keylen = IEEE80211_WEP_KEYLEN;
2356                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2357                         error = wi_write_rid(sc, WI_RID_P2_CRYPT_KEY0 + i,
2358                             ic->ic_nw_keys[i].wk_key, keylen);
2359                         if (error)
2360                                 break;
2361                 }
2362                 break;
2363         }
2364         /*
2365          * XXX horrible hack; insure pre-existing keys are
2366          * setup properly to do s/w crypto.
2367          */
2368         for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2369                 struct ieee80211_key *k = &ic->ic_nw_keys[i];
2370                 if (k->wk_flags & IEEE80211_KEY_XMIT) {
2371                         if (sc->sc_encryption & HOST_ENCRYPT)
2372                                 k->wk_flags |= IEEE80211_KEY_SWCRYPT;
2373                         else
2374                                 k->wk_flags &= ~IEEE80211_KEY_SWCRYPT;
2375                 }
2376         }
2377         return error;
2378 }
2379
2380 static int
2381 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
2382 {
2383         int                     i, s = 0;
2384
2385         if (sc->wi_gone)
2386                 return (ENODEV);
2387
2388         /* wait for the busy bit to clear */
2389         for (i = sc->wi_cmd_count; i > 0; i--) {        /* 500ms */
2390                 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
2391                         break;
2392                 DELAY(1*1000);  /* 1ms */
2393         }
2394         if (i == 0) {
2395                 if_printf(&sc->sc_ic.ic_if, "wi_cmd: busy bit won't clear.\n" );
2396                 sc->wi_gone = 1;
2397                 return(ETIMEDOUT);
2398         }
2399
2400         CSR_WRITE_2(sc, WI_PARAM0, val0);
2401         CSR_WRITE_2(sc, WI_PARAM1, val1);
2402         CSR_WRITE_2(sc, WI_PARAM2, val2);
2403         CSR_WRITE_2(sc, WI_COMMAND, cmd);
2404
2405         if (cmd == WI_CMD_INI) {
2406                 /* XXX: should sleep here. */
2407                 DELAY(100*1000);                /* 100ms delay for init */
2408         }
2409         for (i = 0; i < WI_TIMEOUT; i++) {
2410                 /*
2411                  * Wait for 'command complete' bit to be
2412                  * set in the event status register.
2413                  */
2414                 s = CSR_READ_2(sc, WI_EVENT_STAT);
2415                 if (s & WI_EV_CMD) {
2416                         /* Ack the event and read result code. */
2417                         s = CSR_READ_2(sc, WI_STATUS);
2418                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
2419                         if (s & WI_STAT_CMD_RESULT) {
2420                                 return(EIO);
2421                         }
2422                         break;
2423                 }
2424                 DELAY(WI_DELAY);
2425         }
2426
2427         if (i == WI_TIMEOUT) {
2428                 if_printf(&sc->sc_ic.ic_if,
2429                     "timeout in wi_cmd 0x%04x; event status 0x%04x\n", cmd, s);
2430                 if (s == 0xffff)
2431                         sc->wi_gone = 1;
2432                 return(ETIMEDOUT);
2433         }
2434         return (0);
2435 }
2436
2437 static int
2438 wi_seek_bap(struct wi_softc *sc, int id, int off)
2439 {
2440         int i, status;
2441
2442         CSR_WRITE_2(sc, WI_SEL0, id);
2443         CSR_WRITE_2(sc, WI_OFF0, off);
2444
2445         for (i = 0; ; i++) {
2446                 status = CSR_READ_2(sc, WI_OFF0);
2447                 if ((status & WI_OFF_BUSY) == 0)
2448                         break;
2449                 if (i == WI_TIMEOUT) {
2450                         if_printf(&sc->sc_ic.ic_if,
2451                                   "timeout in wi_seek to %x/%x\n", id, off);
2452                         sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2453                         if (status == 0xffff)
2454                                 sc->wi_gone = 1;
2455                         return ETIMEDOUT;
2456                 }
2457                 DELAY(1);
2458         }
2459         if (status & WI_OFF_ERR) {
2460                 if_printf(&sc->sc_ic.ic_if, "failed in wi_seek to %x/%x\n",
2461                           id, off);
2462                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2463                 return EIO;
2464         }
2465         sc->sc_bap_id = id;
2466         sc->sc_bap_off = off;
2467         return 0;
2468 }
2469
2470 static int
2471 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2472 {
2473         u_int16_t *ptr;
2474         int i, error, cnt;
2475
2476         if (buflen == 0)
2477                 return 0;
2478         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2479                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2480                         return error;
2481         }
2482         cnt = (buflen + 1) / 2;
2483         ptr = (u_int16_t *)buf;
2484         for (i = 0; i < cnt; i++)
2485                 *ptr++ = CSR_READ_2(sc, WI_DATA0);
2486         sc->sc_bap_off += cnt * 2;
2487         return 0;
2488 }
2489
2490 static int
2491 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2492 {
2493         u_int16_t *ptr;
2494         int i, error, cnt;
2495
2496         if (buflen == 0)
2497                 return 0;
2498
2499 #ifdef WI_HERMES_AUTOINC_WAR
2500   again:
2501 #endif
2502         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2503                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2504                         return error;
2505         }
2506         cnt = (buflen + 1) / 2;
2507         ptr = (u_int16_t *)buf;
2508         for (i = 0; i < cnt; i++)
2509                 CSR_WRITE_2(sc, WI_DATA0, ptr[i]);
2510         sc->sc_bap_off += cnt * 2;
2511
2512 #ifdef WI_HERMES_AUTOINC_WAR
2513         /*
2514          * According to the comments in the HCF Light code, there is a bug
2515          * in the Hermes (or possibly in certain Hermes firmware revisions)
2516          * where the chip's internal autoincrement counter gets thrown off
2517          * during data writes:  the autoincrement is missed, causing one
2518          * data word to be overwritten and subsequent words to be written to
2519          * the wrong memory locations. The end result is that we could end
2520          * up transmitting bogus frames without realizing it. The workaround
2521          * for this is to write a couple of extra guard words after the end
2522          * of the transfer, then attempt to read then back. If we fail to
2523          * locate the guard words where we expect them, we preform the
2524          * transfer over again.
2525          */
2526         if ((sc->sc_flags & WI_FLAGS_BUG_AUTOINC) && (id & 0xf000) == 0) {
2527                 CSR_WRITE_2(sc, WI_DATA0, 0x1234);
2528                 CSR_WRITE_2(sc, WI_DATA0, 0x5678);
2529                 wi_seek_bap(sc, id, sc->sc_bap_off);
2530                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2531                 if (CSR_READ_2(sc, WI_DATA0) != 0x1234 ||
2532                     CSR_READ_2(sc, WI_DATA0) != 0x5678) {
2533                         if_printf(&sc->sc_ic.ic_if,
2534                                   "detect auto increment bug, try again\n");
2535                         goto again;
2536                 }
2537         }
2538 #endif
2539         return 0;
2540 }
2541
2542 static int
2543 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
2544 {
2545         int error, len;
2546         struct mbuf *m;
2547
2548         for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
2549                 if (m->m_len == 0)
2550                         continue;
2551
2552                 len = min(m->m_len, totlen);
2553
2554                 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
2555                         m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
2556                         return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
2557                             totlen);
2558                 }
2559
2560                 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
2561                         return error;
2562
2563                 off += m->m_len;
2564                 totlen -= len;
2565         }
2566         return 0;
2567 }
2568
2569 static int
2570 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
2571 {
2572         int i;
2573
2574         if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
2575                 if_printf(&sc->sc_ic.ic_if,
2576                           "failed to allocate %d bytes on NIC\n", len);
2577                 return ENOMEM;
2578         }
2579
2580         for (i = 0; i < WI_TIMEOUT; i++) {
2581                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
2582                         break;
2583                 DELAY(1);
2584         }
2585         if (i == WI_TIMEOUT) {
2586                 if_printf(&sc->sc_ic.ic_if, "timeout in alloc\n");
2587                 return ETIMEDOUT;
2588         }
2589         *idp = CSR_READ_2(sc, WI_ALLOC_FID);
2590         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
2591         return 0;
2592 }
2593
2594 static int
2595 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
2596 {
2597         int error, len;
2598         u_int16_t ltbuf[2];
2599
2600         /* Tell the NIC to enter record read mode. */
2601         error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
2602         if (error)
2603                 return error;
2604
2605         error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2606         if (error)
2607                 return error;
2608
2609         if (le16toh(ltbuf[1]) != rid) {
2610                 if_printf(&sc->sc_ic.ic_if,
2611                           "record read mismatch, rid=%x, got=%x\n",
2612                           rid, le16toh(ltbuf[1]));
2613                 return EIO;
2614         }
2615         len = (le16toh(ltbuf[0]) - 1) * 2;       /* already got rid */
2616         if (*buflenp < len) {
2617                 if_printf(&sc->sc_ic.ic_if, "record buffer is too small, "
2618                           "rid=%x, size=%d, len=%d\n", rid, *buflenp, len);
2619                 return ENOSPC;
2620         }
2621         *buflenp = len;
2622         return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
2623 }
2624
2625 static int
2626 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen)
2627 {
2628         int error;
2629         u_int16_t ltbuf[2];
2630
2631         ltbuf[0] = htole16((buflen + 1) / 2 + 1);        /* includes rid */
2632         ltbuf[1] = htole16(rid);
2633
2634         error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2635         if (error)
2636                 return error;
2637         error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
2638         if (error)
2639                 return error;
2640
2641         return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
2642 }
2643
2644 static int
2645 wi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
2646 {
2647         struct ifnet *ifp = &ic->ic_if;
2648         struct wi_softc *sc = ifp->if_softc;
2649         struct ieee80211_node *ni = ic->ic_bss;
2650         int buflen;
2651         u_int16_t val;
2652         struct wi_ssid ssid;
2653         u_int8_t old_bssid[IEEE80211_ADDR_LEN];
2654
2655         DPRINTF((ifp, "%s: %s -> %s\n", __func__,
2656                 ieee80211_state_name[ic->ic_state],
2657                 ieee80211_state_name[nstate]));
2658
2659         /*
2660          * Internal to the driver the INIT and RUN states are used
2661          * so bypass the net80211 state machine for other states.
2662          * Beware however that this requires use to net80211 state
2663          * management that otherwise would be handled for us.
2664          */
2665         switch (nstate) {
2666         case IEEE80211_S_INIT:
2667                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2668                 return sc->sc_newstate(ic, nstate, arg);
2669
2670         case IEEE80211_S_RUN:
2671                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2672                 buflen = IEEE80211_ADDR_LEN;
2673                 IEEE80211_ADDR_COPY(old_bssid, ni->ni_bssid);
2674                 wi_read_rid(sc, WI_RID_CURRENT_BSSID, ni->ni_bssid, &buflen);
2675                 IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid);
2676                 buflen = sizeof(val);
2677                 wi_read_rid(sc, WI_RID_CURRENT_CHAN, &val, &buflen);
2678                 /* XXX validate channel */
2679                 ni->ni_chan = &ic->ic_channels[le16toh(val)];
2680                 ic->ic_curchan = ni->ni_chan;
2681                 ic->ic_ibss_chan = ni->ni_chan;
2682
2683                 sc->sc_tx_th.wt_chan_freq = sc->sc_rx_th.wr_chan_freq =
2684                         htole16(ni->ni_chan->ic_freq);
2685                 sc->sc_tx_th.wt_chan_flags = sc->sc_rx_th.wr_chan_flags =
2686                         htole16(ni->ni_chan->ic_flags);
2687
2688                 /*
2689                  * XXX hack; unceremoniously clear
2690                  * IEEE80211_F_DROPUNENC when operating with
2691                  * wep enabled so we don't drop unencoded frames
2692                  * at the 802.11 layer.  This is necessary because
2693                  * we must strip the WEP bit from the 802.11 header
2694                  * before passing frames to ieee80211_input because
2695                  * the card has already stripped the WEP crypto
2696                  * header from the packet.
2697                  */
2698                 if (ic->ic_flags & IEEE80211_F_PRIVACY)
2699                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
2700                 if (ic->ic_opmode != IEEE80211_M_HOSTAP) {
2701                         /* XXX check return value */
2702                         buflen = sizeof(ssid);
2703                         wi_read_rid(sc, WI_RID_CURRENT_SSID, &ssid, &buflen);
2704                         ni->ni_esslen = le16toh(ssid.wi_len);
2705                         if (ni->ni_esslen > IEEE80211_NWID_LEN)
2706                                 ni->ni_esslen = IEEE80211_NWID_LEN;     /*XXX*/
2707                         memcpy(ni->ni_essid, ssid.wi_ssid, ni->ni_esslen);
2708                 }
2709                 return sc->sc_newstate(ic, nstate, arg);
2710
2711         case IEEE80211_S_SCAN:
2712         case IEEE80211_S_AUTH:
2713         case IEEE80211_S_ASSOC:
2714                 break;
2715         }
2716
2717         ic->ic_state = nstate;          /* NB: skip normal ieee80211 handling */
2718         return 0;
2719 }
2720
2721 static int
2722 wi_scan_ap(struct wi_softc *sc, u_int16_t chanmask, u_int16_t txrate)
2723 {
2724         int error = 0;
2725         u_int16_t val[2];
2726
2727         if (!sc->sc_enabled)
2728                 return ENXIO;
2729         switch (sc->sc_firmware_type) {
2730         case WI_LUCENT:
2731                 wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
2732                 break;
2733         case WI_INTERSIL:
2734                 val[0] = htole16(chanmask);     /* channel */
2735                 val[1] = htole16(txrate);       /* tx rate */
2736                 error = wi_write_rid(sc, WI_RID_SCAN_REQ, val, sizeof(val));
2737                 break;
2738         case WI_SYMBOL:
2739                 /*
2740                  * XXX only supported on 3.x ?
2741                  */
2742                 val[0] = BSCAN_BCAST | BSCAN_ONETIME;
2743                 error = wi_write_rid(sc, WI_RID_BCAST_SCAN_REQ,
2744                     val, sizeof(val[0]));
2745                 break;
2746         }
2747         if (error == 0) {
2748                 sc->sc_scan_timer = WI_SCAN_WAIT;
2749                 sc->sc_ic.ic_if.if_timer = 1;
2750                 DPRINTF((&sc->sc_ic.ic_if, "wi_scan_ap: start scanning, "
2751                         "chamask 0x%x txrate 0x%x\n", chanmask, txrate));
2752         }
2753         return error;
2754 }
2755
2756 static void
2757 wi_scan_result(struct wi_softc *sc, int fid, int cnt)
2758 {
2759 #define N(a)    (sizeof (a) / sizeof (a[0]))
2760         int i, naps, off, szbuf;
2761         struct wi_scan_header ws_hdr;   /* Prism2 header */
2762         struct wi_scan_data_p2 ws_dat;  /* Prism2 scantable*/
2763         struct wi_apinfo *ap;
2764
2765         off = sizeof(u_int16_t) * 2;
2766         memset(&ws_hdr, 0, sizeof(ws_hdr));
2767         switch (sc->sc_firmware_type) {
2768         case WI_INTERSIL:
2769                 wi_read_bap(sc, fid, off, &ws_hdr, sizeof(ws_hdr));
2770                 off += sizeof(ws_hdr);
2771                 szbuf = sizeof(struct wi_scan_data_p2);
2772                 break;
2773         case WI_SYMBOL:
2774                 szbuf = sizeof(struct wi_scan_data_p2) + 6;
2775                 break;
2776         case WI_LUCENT:
2777                 szbuf = sizeof(struct wi_scan_data);
2778                 break;
2779         default:
2780                 if_printf(&sc->sc_ic.ic_if,
2781                           "wi_scan_result: unknown firmware type %u\n",
2782                           sc->sc_firmware_type);
2783                 naps = 0;
2784                 goto done;
2785         }
2786         naps = (cnt * 2 + 2 - off) / szbuf;
2787         if (naps > N(sc->sc_aps))
2788                 naps = N(sc->sc_aps);
2789         sc->sc_naps = naps;
2790         /* Read Data */
2791         ap = sc->sc_aps;
2792         memset(&ws_dat, 0, sizeof(ws_dat));
2793         for (i = 0; i < naps; i++, ap++) {
2794                 wi_read_bap(sc, fid, off, &ws_dat,
2795                     (sizeof(ws_dat) < szbuf ? sizeof(ws_dat) : szbuf));
2796                 DPRINTF2((&sc->sc_ic.ic_if,
2797                           "wi_scan_result: #%d: off %d bssid %6D\n",
2798                           i, off, ws_dat.wi_bssid, ":"));
2799                 off += szbuf;
2800                 ap->scanreason = le16toh(ws_hdr.wi_reason);
2801                 memcpy(ap->bssid, ws_dat.wi_bssid, sizeof(ap->bssid));
2802                 ap->channel = le16toh(ws_dat.wi_chid);
2803                 ap->signal  = le16toh(ws_dat.wi_signal);
2804                 ap->noise   = le16toh(ws_dat.wi_noise);
2805                 ap->quality = ap->signal - ap->noise;
2806                 ap->capinfo = le16toh(ws_dat.wi_capinfo);
2807                 ap->interval = le16toh(ws_dat.wi_interval);
2808                 ap->rate    = le16toh(ws_dat.wi_rate);
2809                 ap->namelen = le16toh(ws_dat.wi_namelen);
2810                 if (ap->namelen > sizeof(ap->name))
2811                         ap->namelen = sizeof(ap->name);
2812                 memcpy(ap->name, ws_dat.wi_name, ap->namelen);
2813         }
2814 done:
2815         /* Done scanning */
2816         sc->sc_scan_timer = 0;
2817         DPRINTF((&sc->sc_ic.ic_if, "wi_scan_result: scan complete: ap %d\n",
2818                  naps));
2819 #undef N
2820 }
2821
2822 static void
2823 wi_dump_pkt(struct wi_frame *wh, struct ieee80211_node *ni, int rssi)
2824 {
2825         ieee80211_dump_pkt((u_int8_t *) &wh->wi_whdr, sizeof(wh->wi_whdr),
2826             ni ? ni->ni_rates.rs_rates[ni->ni_txrate] & IEEE80211_RATE_VAL : -1, rssi);
2827         kprintf(" status 0x%x rx_tstamp1 %u rx_tstamp0 0x%u rx_silence %u\n",
2828                 le16toh(wh->wi_status), le16toh(wh->wi_rx_tstamp1),
2829                 le16toh(wh->wi_rx_tstamp0), wh->wi_rx_silence);
2830         kprintf(" rx_signal %u rx_rate %u rx_flow %u\n",
2831                 wh->wi_rx_signal, wh->wi_rx_rate, wh->wi_rx_flow);
2832         kprintf(" tx_rtry %u tx_rate %u tx_ctl 0x%x dat_len %u\n",
2833                 wh->wi_tx_rtry, wh->wi_tx_rate,
2834                 le16toh(wh->wi_tx_ctl), le16toh(wh->wi_dat_len));
2835         kprintf(" ehdr dst %6D src %6D type 0x%x\n",
2836                 wh->wi_ehdr.ether_dhost, ":", wh->wi_ehdr.ether_shost, ":",
2837                 wh->wi_ehdr.ether_type);
2838 }
2839
2840 int
2841 wi_alloc(device_t dev, int rid)
2842 {
2843         struct wi_softc *sc = device_get_softc(dev);
2844
2845         if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
2846                 sc->iobase_rid = rid;
2847                 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
2848                     &sc->iobase_rid, 0, ~0, (1 << 6),
2849                     rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
2850                 if (!sc->iobase) {
2851                         device_printf(dev, "No I/O space?!\n");
2852                         return (ENXIO);
2853                 }
2854
2855                 sc->wi_io_addr = rman_get_start(sc->iobase);
2856                 sc->wi_btag = rman_get_bustag(sc->iobase);
2857                 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
2858         } else {
2859                 sc->mem_rid = rid;
2860                 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
2861                     &sc->mem_rid, RF_ACTIVE);
2862
2863                 if (!sc->mem) {
2864                         device_printf(dev, "No Mem space on prism2.5?\n");
2865                         return (ENXIO);
2866                 }
2867
2868                 sc->wi_btag = rman_get_bustag(sc->mem);
2869                 sc->wi_bhandle = rman_get_bushandle(sc->mem);
2870         }
2871
2872
2873         sc->irq_rid = 0;
2874         sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
2875             RF_ACTIVE |
2876             ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
2877
2878         if (!sc->irq) {
2879                 wi_free(dev);
2880                 device_printf(dev, "No irq?!\n");
2881                 return (ENXIO);
2882         }
2883
2884         return (0);
2885 }
2886
2887 void
2888 wi_free(device_t dev)
2889 {
2890         struct wi_softc *sc = device_get_softc(dev);
2891
2892         if (sc->iobase != NULL) {
2893                 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
2894                 sc->iobase = NULL;
2895         }
2896         if (sc->irq != NULL) {
2897                 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
2898                 sc->irq = NULL;
2899         }
2900         if (sc->mem != NULL) {
2901                 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
2902                 sc->mem = NULL;
2903         }
2904 }
2905
2906 static int
2907 wi_get_debug(struct wi_softc *sc, struct wi_req *wreq)
2908 {
2909         int error = 0;
2910
2911         wreq->wi_len = 1;
2912
2913         switch (wreq->wi_type) {
2914         case WI_DEBUG_SLEEP:
2915                 wreq->wi_len++;
2916                 wreq->wi_val[0] = sc->wi_debug.wi_sleep;
2917                 break;
2918         case WI_DEBUG_DELAYSUPP:
2919                 wreq->wi_len++;
2920                 wreq->wi_val[0] = sc->wi_debug.wi_delaysupp;
2921                 break;
2922         case WI_DEBUG_TXSUPP:
2923                 wreq->wi_len++;
2924                 wreq->wi_val[0] = sc->wi_debug.wi_txsupp;
2925                 break;
2926         case WI_DEBUG_MONITOR:
2927                 wreq->wi_len++;
2928                 wreq->wi_val[0] = sc->wi_debug.wi_monitor;
2929                 break;
2930         case WI_DEBUG_LEDTEST:
2931                 wreq->wi_len += 3;
2932                 wreq->wi_val[0] = sc->wi_debug.wi_ledtest;
2933                 wreq->wi_val[1] = sc->wi_debug.wi_ledtest_param0;
2934                 wreq->wi_val[2] = sc->wi_debug.wi_ledtest_param1;
2935                 break;
2936         case WI_DEBUG_CONTTX:
2937                 wreq->wi_len += 2;
2938                 wreq->wi_val[0] = sc->wi_debug.wi_conttx;
2939                 wreq->wi_val[1] = sc->wi_debug.wi_conttx_param0;
2940                 break;
2941         case WI_DEBUG_CONTRX:
2942                 wreq->wi_len++;
2943                 wreq->wi_val[0] = sc->wi_debug.wi_contrx;
2944                 break;
2945         case WI_DEBUG_SIGSTATE:
2946                 wreq->wi_len += 2;
2947                 wreq->wi_val[0] = sc->wi_debug.wi_sigstate;
2948                 wreq->wi_val[1] = sc->wi_debug.wi_sigstate_param0;
2949                 break;
2950         case WI_DEBUG_CONFBITS:
2951                 wreq->wi_len += 2;
2952                 wreq->wi_val[0] = sc->wi_debug.wi_confbits;
2953                 wreq->wi_val[1] = sc->wi_debug.wi_confbits_param0;
2954                 break;
2955         default:
2956                 error = EIO;
2957                 break;
2958         }
2959
2960         return (error);
2961 }
2962
2963 static int
2964 wi_set_debug(struct wi_softc *sc, struct wi_req *wreq)
2965 {
2966         int error = 0;
2967         u_int16_t               cmd, param0 = 0, param1 = 0;
2968
2969         switch (wreq->wi_type) {
2970         case WI_DEBUG_RESET:
2971         case WI_DEBUG_INIT:
2972         case WI_DEBUG_CALENABLE:
2973                 break;
2974         case WI_DEBUG_SLEEP:
2975                 sc->wi_debug.wi_sleep = 1;
2976                 break;
2977         case WI_DEBUG_WAKE:
2978                 sc->wi_debug.wi_sleep = 0;
2979                 break;
2980         case WI_DEBUG_CHAN:
2981                 param0 = wreq->wi_val[0];
2982                 break;
2983         case WI_DEBUG_DELAYSUPP:
2984                 sc->wi_debug.wi_delaysupp = 1;
2985                 break;
2986         case WI_DEBUG_TXSUPP:
2987                 sc->wi_debug.wi_txsupp = 1;
2988                 break;
2989         case WI_DEBUG_MONITOR:
2990                 sc->wi_debug.wi_monitor = 1;
2991                 break;
2992         case WI_DEBUG_LEDTEST:
2993                 param0 = wreq->wi_val[0];
2994                 param1 = wreq->wi_val[1];
2995                 sc->wi_debug.wi_ledtest = 1;
2996                 sc->wi_debug.wi_ledtest_param0 = param0;
2997                 sc->wi_debug.wi_ledtest_param1 = param1;
2998                 break;
2999         case WI_DEBUG_CONTTX:
3000                 param0 = wreq->wi_val[0];
3001                 sc->wi_debug.wi_conttx = 1;
3002                 sc->wi_debug.wi_conttx_param0 = param0;
3003                 break;
3004         case WI_DEBUG_STOPTEST:
3005                 sc->wi_debug.wi_delaysupp = 0;
3006                 sc->wi_debug.wi_txsupp = 0;
3007                 sc->wi_debug.wi_monitor = 0;
3008                 sc->wi_debug.wi_ledtest = 0;
3009                 sc->wi_debug.wi_ledtest_param0 = 0;
3010                 sc->wi_debug.wi_ledtest_param1 = 0;
3011                 sc->wi_debug.wi_conttx = 0;
3012                 sc->wi_debug.wi_conttx_param0 = 0;
3013                 sc->wi_debug.wi_contrx = 0;
3014                 sc->wi_debug.wi_sigstate = 0;
3015                 sc->wi_debug.wi_sigstate_param0 = 0;
3016                 break;
3017         case WI_DEBUG_CONTRX:
3018                 sc->wi_debug.wi_contrx = 1;
3019                 break;
3020         case WI_DEBUG_SIGSTATE:
3021                 param0 = wreq->wi_val[0];
3022                 sc->wi_debug.wi_sigstate = 1;
3023                 sc->wi_debug.wi_sigstate_param0 = param0;
3024                 break;
3025         case WI_DEBUG_CONFBITS:
3026                 param0 = wreq->wi_val[0];
3027                 param1 = wreq->wi_val[1];
3028                 sc->wi_debug.wi_confbits = param0;
3029                 sc->wi_debug.wi_confbits_param0 = param1;
3030                 break;
3031         default:
3032                 error = EIO;
3033                 break;
3034         }
3035
3036         if (error)
3037                 return (error);
3038
3039         cmd = WI_CMD_DEBUG | (wreq->wi_type << 8);
3040         error = wi_cmd(sc, cmd, param0, param1, 0);
3041
3042         return (error);
3043 }
3044
3045 /*
3046  * Special routines to download firmware for Symbol CF card.
3047  * XXX: This should be modified generic into any PRISM-2 based card.
3048  */
3049
3050 #define WI_SBCF_PDIADDR         0x3100
3051
3052 /* unaligned load little endian */
3053 #define GETLE32(p)      ((p)[0] | ((p)[1]<<8) | ((p)[2]<<16) | ((p)[3]<<24))
3054 #define GETLE16(p)      ((p)[0] | ((p)[1]<<8))
3055
3056 int
3057 wi_symbol_load_firm(struct wi_softc *sc, const void *primsym, int primlen,
3058     const void *secsym, int seclen)
3059 {
3060         uint8_t ebuf[256];
3061         int i;
3062
3063         /* load primary code and run it */
3064         wi_symbol_set_hcr(sc, WI_HCR_EEHOLD);
3065         if (wi_symbol_write_firm(sc, primsym, primlen, NULL, 0))
3066                 return EIO;
3067         wi_symbol_set_hcr(sc, WI_HCR_RUN);
3068         for (i = 0; ; i++) {
3069                 if (i == 10)
3070                         return ETIMEDOUT;
3071                 tsleep(sc, 0, "wiinit", 1);
3072                 if (CSR_READ_2(sc, WI_CNTL) == WI_CNTL_AUX_ENA_STAT)
3073                         break;
3074                 /* write the magic key value to unlock aux port */
3075                 CSR_WRITE_2(sc, WI_PARAM0, WI_AUX_KEY0);
3076                 CSR_WRITE_2(sc, WI_PARAM1, WI_AUX_KEY1);
3077                 CSR_WRITE_2(sc, WI_PARAM2, WI_AUX_KEY2);
3078                 CSR_WRITE_2(sc, WI_CNTL, WI_CNTL_AUX_ENA_CNTL);
3079         }
3080
3081         /* issue read EEPROM command: XXX copied from wi_cmd() */
3082         CSR_WRITE_2(sc, WI_PARAM0, 0);
3083         CSR_WRITE_2(sc, WI_PARAM1, 0);
3084         CSR_WRITE_2(sc, WI_PARAM2, 0);
3085         CSR_WRITE_2(sc, WI_COMMAND, WI_CMD_READEE);
3086         for (i = 0; i < WI_TIMEOUT; i++) {
3087                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_CMD)
3088                         break;
3089                 DELAY(1);
3090         }
3091         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
3092
3093         CSR_WRITE_2(sc, WI_AUX_PAGE, WI_SBCF_PDIADDR / WI_AUX_PGSZ);
3094         CSR_WRITE_2(sc, WI_AUX_OFFSET, WI_SBCF_PDIADDR % WI_AUX_PGSZ);
3095         CSR_READ_MULTI_STREAM_2(sc, WI_AUX_DATA,
3096             (uint16_t *)ebuf, sizeof(ebuf) / 2);
3097         if (GETLE16(ebuf) > sizeof(ebuf))
3098                 return EIO;
3099         if (wi_symbol_write_firm(sc, secsym, seclen, ebuf + 4, GETLE16(ebuf)))
3100                 return EIO;
3101         return 0;
3102 }
3103
3104 static int
3105 wi_symbol_write_firm(struct wi_softc *sc, const void *buf, int buflen,
3106     const void *ebuf, int ebuflen)
3107 {
3108         const uint8_t *p, *ep, *q, *eq;
3109         char *tp;
3110         uint32_t addr, id, eid;
3111         int i, len, elen, nblk, pdrlen;
3112
3113         /*
3114          * Parse the header of the firmware image.
3115          */
3116         p = buf;
3117         ep = p + buflen;
3118         while (p < ep && *p++ != ' ');  /* FILE: */
3119         while (p < ep && *p++ != ' ');  /* filename */
3120         while (p < ep && *p++ != ' ');  /* type of the firmware */
3121         nblk = strtoul(p, &tp, 10);
3122         p = tp;
3123         pdrlen = strtoul(p + 1, &tp, 10);
3124         p = tp;
3125         while (p < ep && *p++ != 0x1a); /* skip rest of header */
3126
3127         /*
3128          * Block records: address[4], length[2], data[length];
3129          */
3130         for (i = 0; i < nblk; i++) {
3131                 addr = GETLE32(p);      p += 4;
3132                 len  = GETLE16(p);      p += 2;
3133                 CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3134                 CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3135                 CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3136                     (const uint16_t *)p, len / 2);
3137                 p += len;
3138         }
3139
3140         /*
3141          * PDR: id[4], address[4], length[4];
3142          */
3143         for (i = 0; i < pdrlen; ) {
3144                 id   = GETLE32(p);      p += 4; i += 4;
3145                 addr = GETLE32(p);      p += 4; i += 4;
3146                 len  = GETLE32(p);      p += 4; i += 4;
3147                 /* replace PDR entry with the values from EEPROM, if any */
3148                 for (q = ebuf, eq = q + ebuflen; q < eq; q += elen * 2) {
3149                         elen = GETLE16(q);      q += 2;
3150                         eid  = GETLE16(q);      q += 2;
3151                         elen--;         /* elen includes eid */
3152                         if (eid == 0)
3153                                 break;
3154                         if (eid != id)
3155                                 continue;
3156                         CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3157                         CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3158                         CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3159                             (const uint16_t *)q, len / 2);
3160                         break;
3161                 }
3162         }
3163         return 0;
3164 }
3165
3166 static int
3167 wi_symbol_set_hcr(struct wi_softc *sc, int mode)
3168 {
3169         uint16_t hcr;
3170
3171         CSR_WRITE_2(sc, WI_COR, WI_COR_RESET);
3172         tsleep(sc, 0, "wiinit", 1);
3173         hcr = CSR_READ_2(sc, WI_HCR);
3174         hcr = (hcr & WI_HCR_4WIRE) | (mode & ~WI_HCR_4WIRE);
3175         CSR_WRITE_2(sc, WI_HCR, hcr);
3176         tsleep(sc, 0, "wiinit", 1);
3177         CSR_WRITE_2(sc, WI_COR, WI_COR_IOMODE);
3178         tsleep(sc, 0, "wiinit", 1);
3179         return 0;
3180 }