sys/dev/netif/wi/if_wi.c

   1 /*      $NetBSD: wi.c,v 1.109 2003/01/09 08:52:19 dyoung Exp $  */
   2
   3 /*
   4  * Copyright (c) 1997, 1998, 1999
   5  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Bill Paul.
  18  * 4. Neither the name of the author nor the names of any co-contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
  26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32  * THE POSSIBILITY OF SUCH DAMAGE.
  33  *
  34  * $FreeBSD: src/sys/dev/wi/if_wi.c,v 1.166 2004/04/01 00:38:45 sam Exp $
  35  * $DragonFly: src/sys/dev/netif/wi/if_wi.c,v 1.19 2005/02/02 14:14:20 joerg Exp $
  36  */
  37
  38 /*
  39  * Lucent WaveLAN/IEEE 802.11 PCMCIA driver.
  40  *
  41  * Original FreeBSD driver written by Bill Paul <wpaul@ctr.columbia.edu>
  42  * Electrical Engineering Department
  43  * Columbia University, New York City
  44  */
  45
  46 /*
  47  * The WaveLAN/IEEE adapter is the second generation of the WaveLAN
  48  * from Lucent. Unlike the older cards, the new ones are programmed
  49  * entirely via a firmware-driven controller called the Hermes.
  50  * Unfortunately, Lucent will not release the Hermes programming manual
  51  * without an NDA (if at all). What they do release is an API library
  52  * called the HCF (Hardware Control Functions) which is supposed to
  53  * do the device-specific operations of a device driver for you. The
  54  * publically available version of the HCF library (the 'HCF Light') is
  55  * a) extremely gross, b) lacks certain features, particularly support
  56  * for 802.11 frames, and c) is contaminated by the GNU Public License.
  57  *
  58  * This driver does not use the HCF or HCF Light at all. Instead, it
  59  * programs the Hermes controller directly, using information gleaned
  60  * from the HCF Light code and corresponding documentation.
  61  *
  62  * This driver supports the ISA, PCMCIA and PCI versions of the Lucent
  63  * WaveLan cards (based on the Hermes chipset), as well as the newer
  64  * Prism 2 chipsets with firmware from Intersil and Symbol.
  65  */
  66
  67 #define WI_HERMES_AUTOINC_WAR   /* Work around data write autoinc bug. */
  68 #define WI_HERMES_STATS_WAR     /* Work around stats counter bug. */
  69
  70 #include <sys/param.h>
  71 #include <sys/endian.h>
  72 #include <sys/systm.h>
  73 #include <sys/sockio.h>
  74 #include <sys/mbuf.h>
  75 #include <sys/proc.h>
  76 #include <sys/kernel.h>
  77 #include <sys/socket.h>
  78 #include <sys/module.h>
  79 #include <sys/bus.h>
  80 #include <sys/random.h>
  81 #include <sys/syslog.h>
  82 #include <sys/sysctl.h>
  83
  84 #include <machine/bus.h>
  85 #include <machine/resource.h>
  86 #include <machine/clock.h>
  87 #include <machine/atomic.h>
  88 #include <sys/rman.h>
  89
  90 #include <net/if.h>
  91 #include <net/if_arp.h>
  92 #include <net/ethernet.h>
  93 #include <net/if_dl.h>
  94 #include <net/if_media.h>
  95 #include <net/if_types.h>
  96
  97 #include <netproto/802_11/ieee80211_var.h>
  98 #include <netproto/802_11/ieee80211_ioctl.h>
  99 #include <netproto/802_11/ieee80211_radiotap.h>
 100 #include <netproto/802_11/if_wavelan_ieee.h>
 101
 102 #include <netinet/in.h>
 103 #include <netinet/in_systm.h>
 104 #include <netinet/in_var.h>
 105 #include <netinet/ip.h>
 106 #include <netinet/if_ether.h>
 107
 108 #include <net/bpf.h>
 109
 110 #include <dev/netif/wi/if_wireg.h>
 111 #include <dev/netif/wi/if_wivar.h>
 112
 113 static void wi_start(struct ifnet *);
 114 static int  wi_reset(struct wi_softc *);
 115 static void wi_watchdog(struct ifnet *);
 116 static int  wi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
 117 static int  wi_media_change(struct ifnet *);
 118 static void wi_media_status(struct ifnet *, struct ifmediareq *);
 119
 120 static void wi_rx_intr(struct wi_softc *);
 121 static void wi_tx_intr(struct wi_softc *);
 122 static void wi_tx_ex_intr(struct wi_softc *);
 123 static void wi_info_intr(struct wi_softc *);
 124
 125 static int  wi_get_cfg(struct ifnet *, u_long, caddr_t, struct ucred *);
 126 static int  wi_set_cfg(struct ifnet *, u_long, caddr_t);
 127 static int  wi_write_txrate(struct wi_softc *);
 128 static int  wi_write_wep(struct wi_softc *);
 129 static int  wi_write_multi(struct wi_softc *);
 130 static int  wi_alloc_fid(struct wi_softc *, int, int *);
 131 static void wi_read_nicid(struct wi_softc *);
 132 static int  wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
 133
 134 static int  wi_cmd(struct wi_softc *, int, int, int, int);
 135 static int  wi_seek_bap(struct wi_softc *, int, int);
 136 static int  wi_read_bap(struct wi_softc *, int, int, void *, int);
 137 static int  wi_write_bap(struct wi_softc *, int, int, void *, int);
 138 static int  wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
 139 static int  wi_read_rid(struct wi_softc *, int, void *, int *);
 140 static int  wi_write_rid(struct wi_softc *, int, void *, int);
 141
 142 static int  wi_newstate(struct ieee80211com *, enum ieee80211_state, int);
 143
 144 static int  wi_scan_ap(struct wi_softc *, u_int16_t, u_int16_t);
 145 static void wi_scan_result(struct wi_softc *, int, int);
 146
 147 static void wi_dump_pkt(struct wi_frame *, struct ieee80211_node *, int rssi);
 148
 149 static int wi_get_debug(struct wi_softc *, struct wi_req *);
 150 static int wi_set_debug(struct wi_softc *, struct wi_req *);
 151
 152 /* support to download firmware for symbol CF card */
 153 static int wi_symbol_write_firm(struct wi_softc *, const void *, int,
 154                 const void *, int);
 155 static int wi_symbol_set_hcr(struct wi_softc *, int);
 156
 157 static __inline int
 158 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val)
 159 {
 160
 161         val = htole16(val);
 162         return wi_write_rid(sc, rid, &val, sizeof(val));
 163 }
 164
 165 SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, "Wireless driver parameters");
 166
 167 static  struct timeval lasttxerror;     /* time of last tx error msg */
 168 static  int curtxeps;                   /* current tx error msgs/sec */
 169 static  int wi_txerate = 0;             /* tx error rate: max msgs/sec */
 170 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate,
 171             0, "max tx error msgs/sec; 0 to disable msgs");
 172
 173 #define WI_DEBUG
 174 #ifdef WI_DEBUG
 175 static  int wi_debug = 0;
 176 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug,
 177             0, "control debugging printfs");
 178
 179 #define DPRINTF(X)      if (wi_debug) printf X
 180 #define DPRINTF2(X)     if (wi_debug > 1) printf X
 181 #define IFF_DUMPPKTS(_ifp) \
 182         (((_ifp)->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2))
 183 #else
 184 #define DPRINTF(X)
 185 #define DPRINTF2(X)
 186 #define IFF_DUMPPKTS(_ifp)      0
 187 #endif
 188
 189 #define WI_INTRS        (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
 190
 191 struct wi_card_ident wi_card_ident[] = {
 192         /* CARD_ID                      CARD_NAME               FIRM_TYPE */
 193         { WI_NIC_LUCENT_ID,             WI_NIC_LUCENT_STR,      WI_LUCENT },
 194         { WI_NIC_SONY_ID,               WI_NIC_SONY_STR,        WI_LUCENT },
 195         { WI_NIC_LUCENT_EMB_ID,         WI_NIC_LUCENT_EMB_STR,  WI_LUCENT },
 196         { WI_NIC_EVB2_ID,               WI_NIC_EVB2_STR,        WI_INTERSIL },
 197         { WI_NIC_HWB3763_ID,            WI_NIC_HWB3763_STR,     WI_INTERSIL },
 198         { WI_NIC_HWB3163_ID,            WI_NIC_HWB3163_STR,     WI_INTERSIL },
 199         { WI_NIC_HWB3163B_ID,           WI_NIC_HWB3163B_STR,    WI_INTERSIL },
 200         { WI_NIC_EVB3_ID,               WI_NIC_EVB3_STR,        WI_INTERSIL },
 201         { WI_NIC_HWB1153_ID,            WI_NIC_HWB1153_STR,     WI_INTERSIL },
 202         { WI_NIC_P2_SST_ID,             WI_NIC_P2_SST_STR,      WI_INTERSIL },
 203         { WI_NIC_EVB2_SST_ID,           WI_NIC_EVB2_SST_STR,    WI_INTERSIL },
 204         { WI_NIC_3842_EVA_ID,           WI_NIC_3842_EVA_STR,    WI_INTERSIL },
 205         { WI_NIC_3842_PCMCIA_AMD_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 206         { WI_NIC_3842_PCMCIA_SST_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 207         { WI_NIC_3842_PCMCIA_ATL_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 208         { WI_NIC_3842_PCMCIA_ATS_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 209         { WI_NIC_3842_MINI_AMD_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 210         { WI_NIC_3842_MINI_SST_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 211         { WI_NIC_3842_MINI_ATL_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 212         { WI_NIC_3842_MINI_ATS_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 213         { WI_NIC_3842_PCI_AMD_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 214         { WI_NIC_3842_PCI_SST_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 215         { WI_NIC_3842_PCI_ATS_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 216         { WI_NIC_3842_PCI_ATL_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 217         { WI_NIC_P3_PCMCIA_AMD_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 218         { WI_NIC_P3_PCMCIA_SST_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 219         { WI_NIC_P3_PCMCIA_ATL_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 220         { WI_NIC_P3_PCMCIA_ATS_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 221         { WI_NIC_P3_MINI_AMD_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 222         { WI_NIC_P3_MINI_SST_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 223         { WI_NIC_P3_MINI_ATL_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 224         { WI_NIC_P3_MINI_ATS_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 225         { 0,    NULL,   0 },
 226 };
 227
 228 devclass_t wi_devclass;
 229
 230 int
 231 wi_attach(device_t dev)
 232 {
 233         struct wi_softc *sc = device_get_softc(dev);
 234         struct ieee80211com *ic = &sc->sc_ic;
 235         struct ifnet *ifp = &ic->ic_if;
 236         int i, nrates, buflen;
 237         u_int16_t val;
 238         u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE];
 239         struct ieee80211_rateset *rs;
 240         static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = {
 241                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 242         };
 243         int error;
 244
 245         /*
 246          * NB: no locking is needed here; don't put it here
 247          *     unless you can prove it!
 248          */
 249         error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
 250             wi_intr, sc, &sc->wi_intrhand);
 251
 252         if (error) {
 253                 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
 254                 wi_free(dev);
 255                 return (error);
 256         }
 257
 258         sc->wi_cmd_count = 500;
 259         /* Reset the NIC. */
 260         if (wi_reset(sc) != 0)
 261                 return ENXIO;           /* XXX */
 262
 263         /*
 264          * Read the station address.
 265          * And do it twice. I've seen PRISM-based cards that return
 266          * an error when trying to read it the first time, which causes
 267          * the probe to fail.
 268          */
 269         buflen = IEEE80211_ADDR_LEN;
 270         error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 271         if (error != 0) {
 272                 buflen = IEEE80211_ADDR_LEN;
 273                 error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 274         }
 275         if (error || IEEE80211_ADDR_EQ(ic->ic_myaddr, empty_macaddr)) {
 276                 if (error != 0)
 277                         device_printf(dev, "mac read failed %d\n", error);
 278                 else
 279                         device_printf(dev, "mac read failed (all zeros)\n");
 280                 wi_free(dev);
 281                 return (error);
 282         }
 283
 284         /* Read NIC identification */
 285         wi_read_nicid(sc);
 286
 287         ifp->if_softc = sc;
 288         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 289         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 290         ifp->if_ioctl = wi_ioctl;
 291         ifp->if_start = wi_start;
 292         ifp->if_watchdog = wi_watchdog;
 293         ifp->if_init = wi_init;
 294         ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
 295 #ifdef DEVICE_POLLING
 296         ifp->if_capabilities |= IFCAP_POLLING;
 297 #endif
 298         ifp->if_capenable = ifp->if_capabilities;
 299
 300         ic->ic_phytype = IEEE80211_T_DS;
 301         ic->ic_opmode = IEEE80211_M_STA;
 302         ic->ic_caps = IEEE80211_C_PMGT | IEEE80211_C_AHDEMO;
 303         ic->ic_state = IEEE80211_S_INIT;
 304
 305         /*
 306          * Query the card for available channels and setup the
 307          * channel table.  We assume these are all 11b channels.
 308          */
 309         buflen = sizeof(val);
 310         if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
 311                 val = htole16(0x1fff);  /* assume 1-11 */
 312         KASSERT(val != 0, ("wi_attach: no available channels listed!"));
 313
 314         val <<= 1;                      /* shift for base 1 indices */
 315         for (i = 1; i < 16; i++) {
 316                 if (isset((u_int8_t*)&val, i)) {
 317                         ic->ic_channels[i].ic_freq =
 318                                 ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
 319                         ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B;
 320                 }
 321         }
 322
 323         /*
 324          * Read the default channel from the NIC. This may vary
 325          * depending on the country where the NIC was purchased, so
 326          * we can't hard-code a default and expect it to work for
 327          * everyone.
 328          *
 329          * If no channel is specified, let the 802.11 code select.
 330          */
 331         buflen = sizeof(val);
 332         if (wi_read_rid(sc, WI_RID_OWN_CHNL, &val, &buflen) == 0) {
 333                 val = le16toh(val);
 334                 KASSERT(val < IEEE80211_CHAN_MAX &&
 335                         ic->ic_channels[val].ic_flags != 0,
 336                         ("wi_attach: invalid own channel %u!", val));
 337                 ic->ic_ibss_chan = &ic->ic_channels[val];
 338         } else {
 339                 device_printf(dev,
 340                         "WI_RID_OWN_CHNL failed, using first channel!\n");
 341                 ic->ic_ibss_chan = &ic->ic_channels[0];
 342         }
 343
 344         /*
 345          * Set flags based on firmware version.
 346          */
 347         switch (sc->sc_firmware_type) {
 348         case WI_LUCENT:
 349                 sc->sc_ntxbuf = 1;
 350                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 351 #ifdef WI_HERMES_AUTOINC_WAR
 352                 /* XXX: not confirmed, but never seen for recent firmware */
 353                 if (sc->sc_sta_firmware_ver <  40000) {
 354                         sc->sc_flags |= WI_FLAGS_BUG_AUTOINC;
 355                 }
 356 #endif
 357                 if (sc->sc_sta_firmware_ver >= 60000)
 358                         sc->sc_flags |= WI_FLAGS_HAS_MOR;
 359                 if (sc->sc_sta_firmware_ver >= 60006) {
 360                         ic->ic_caps |= IEEE80211_C_IBSS;
 361                         ic->ic_caps |= IEEE80211_C_MONITOR;
 362                 }
 363                 sc->sc_ibss_port = htole16(1);
 364
 365                 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
 366                 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
 367                 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
 368                 break;
 369
 370         case WI_INTERSIL:
 371                 sc->sc_ntxbuf = WI_NTXBUF;
 372                 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR;
 373                 sc->sc_flags |= WI_FLAGS_HAS_ROAMING;
 374                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 375                 /*
 376                  * Old firmware are slow, so give peace a chance.
 377                  */
 378                 if (sc->sc_sta_firmware_ver < 10000)
 379                         sc->wi_cmd_count = 5000;
 380                 if (sc->sc_sta_firmware_ver > 10101)
 381                         sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
 382                 if (sc->sc_sta_firmware_ver >= 800) {
 383                         ic->ic_caps |= IEEE80211_C_IBSS;
 384                         ic->ic_caps |= IEEE80211_C_MONITOR;
 385                 }
 386                 /*
 387                  * version 0.8.3 and newer are the only ones that are known
 388                  * to currently work.  Earlier versions can be made to work,
 389                  * at least according to the Linux driver.
 390                  */
 391                 if (sc->sc_sta_firmware_ver >= 803)
 392                         ic->ic_caps |= IEEE80211_C_HOSTAP;
 393                 sc->sc_ibss_port = htole16(0);
 394
 395                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 396                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 397                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 398                 break;
 399
 400         case WI_SYMBOL:
 401                 sc->sc_ntxbuf = 1;
 402                 sc->sc_flags |= WI_FLAGS_HAS_DIVERSITY;
 403                 if (sc->sc_sta_firmware_ver >= 25000)
 404                         ic->ic_caps |= IEEE80211_C_IBSS;
 405                 sc->sc_ibss_port = htole16(4);
 406
 407                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 408                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 409                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 410                 break;
 411         }
 412
 413         /*
 414          * Find out if we support WEP on this card.
 415          */
 416         buflen = sizeof(val);
 417         if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
 418             val != htole16(0))
 419                 ic->ic_caps |= IEEE80211_C_WEP;
 420
 421         /* Find supported rates. */
 422         buflen = sizeof(ratebuf);
 423         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
 424         if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
 425                 nrates = le16toh(*(u_int16_t *)ratebuf);
 426                 if (nrates > IEEE80211_RATE_MAXSIZE)
 427                         nrates = IEEE80211_RATE_MAXSIZE;
 428                 rs->rs_nrates = 0;
 429                 for (i = 0; i < nrates; i++)
 430                         if (ratebuf[2+i])
 431                                 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
 432         } else {
 433                 /* XXX fallback on error? */
 434                 rs->rs_nrates = 0;
 435         }
 436
 437         buflen = sizeof(val);
 438         if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
 439             wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
 440                 sc->sc_dbm_offset = le16toh(val);
 441         }
 442
 443         sc->sc_max_datalen = 2304;
 444         sc->sc_system_scale = 1;
 445         sc->sc_cnfauthmode = IEEE80211_AUTH_OPEN;
 446         sc->sc_roaming_mode = 1;
 447
 448         sc->sc_portnum = WI_DEFAULT_PORT;
 449         sc->sc_authtype = WI_DEFAULT_AUTHTYPE;
 450
 451         bzero(sc->sc_nodename, sizeof(sc->sc_nodename));
 452         sc->sc_nodelen = sizeof(WI_DEFAULT_NODENAME) - 1;
 453         bcopy(WI_DEFAULT_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 454
 455         bzero(sc->sc_net_name, sizeof(sc->sc_net_name));
 456         bcopy(WI_DEFAULT_NETNAME, sc->sc_net_name,
 457             sizeof(WI_DEFAULT_NETNAME) - 1);
 458
 459         /*
 460          * Call MI attach routine.
 461          */
 462         ieee80211_ifattach(ifp);
 463         /* override state transition method */
 464         sc->sc_newstate = ic->ic_newstate;
 465         ic->ic_newstate = wi_newstate;
 466         ieee80211_media_init(ifp, wi_media_change, wi_media_status);
 467
 468         bpfattach_dlt(ifp, DLT_IEEE802_11_RADIO,
 469                 sizeof(struct ieee80211_frame) + sizeof(sc->sc_tx_th),
 470                 &sc->sc_drvbpf);
 471         /*
 472          * Initialize constant fields.
 473          * XXX make header lengths a multiple of 32-bits so subsequent
 474          *     headers are properly aligned; this is a kludge to keep
 475          *     certain applications happy.
 476          *
 477          * NB: the channel is setup each time we transition to the
 478          *     RUN state to avoid filling it in for each frame.
 479          */
 480         sc->sc_tx_th_len = roundup(sizeof(sc->sc_tx_th), sizeof(u_int32_t));
 481         sc->sc_tx_th.wt_ihdr.it_len = htole16(sc->sc_tx_th_len);
 482         sc->sc_tx_th.wt_ihdr.it_present = htole32(WI_TX_RADIOTAP_PRESENT);
 483
 484         sc->sc_rx_th_len = roundup(sizeof(sc->sc_rx_th), sizeof(u_int32_t));
 485         sc->sc_rx_th.wr_ihdr.it_len = htole16(sc->sc_rx_th_len);
 486         sc->sc_rx_th.wr_ihdr.it_present = htole32(WI_RX_RADIOTAP_PRESENT);
 487
 488         return (0);
 489 }
 490
 491 int
 492 wi_detach(device_t dev)
 493 {
 494         struct wi_softc *sc = device_get_softc(dev);
 495         struct ifnet *ifp = &sc->sc_ic.ic_if;
 496         WI_LOCK_DECL();
 497
 498         WI_LOCK(sc);
 499
 500         /* check if device was removed */
 501         sc->wi_gone |= !bus_child_present(dev);
 502
 503         wi_stop(ifp, 0);
 504
 505         ieee80211_ifdetach(ifp);
 506         WI_UNLOCK(sc);
 507         bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
 508         wi_free(dev);
 509         return (0);
 510 }
 511
 512 void
 513 wi_shutdown(device_t dev)
 514 {
 515         struct wi_softc *sc = device_get_softc(dev);
 516
 517         wi_stop(&sc->sc_if, 1);
 518 }
 519
 520 #ifdef DEVICE_POLLING
 521 static void
 522 wi_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
 523 {
 524         struct wi_softc *sc = ifp->if_softc;
 525         uint16_t status;
 526
 527         if ((ifp->if_capenable & IFCAP_POLLING) == 0) {
 528                 ether_poll_deregister(ifp);
 529                 cmd = POLL_DEREGISTER;
 530         }
 531         if (cmd == POLL_DEREGISTER) {
 532                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 533                 return;
 534         }
 535
 536         status = CSR_READ_2(sc, WI_EVENT_STAT);
 537
 538         if (status & WI_EV_RX)
 539                 wi_rx_intr(sc);
 540         if (status & WI_EV_ALLOC)
 541                 wi_tx_intr(sc);
 542         if (status & WI_EV_INFO)
 543                 wi_info_intr(sc);
 544
 545         if (cmd == POLL_AND_CHECK_STATUS) {
 546                 if (status & WI_EV_INFO)
 547                         wi_info_intr(sc);
 548         }
 549
 550         if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 551             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 &&
 552             IF_QLEN(&ifp->if_snd) != NULL)
 553                 wi_start(ifp);
 554 }
 555 #endif /* DEVICE_POLLING */
 556
 557 void
 558 wi_intr(void *arg)
 559 {
 560         struct wi_softc *sc = arg;
 561         struct ifnet *ifp = &sc->sc_ic.ic_if;
 562         u_int16_t status;
 563         WI_LOCK_DECL();
 564
 565 #ifdef DEVICE_POLLING
 566         if (ifp->if_flags & IFF_POLLING)
 567                 return;
 568         if ((ifp->if_capenable & IFCAP_POLLING) &&
 569             (ether_poll_register(wi_poll, ifp))) {
 570                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 571                 wi_poll(ifp, 0, 1);
 572                 return;
 573         }
 574 #endif /* DEVICE_POLLING */
 575
 576         if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) {
 577                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 578                 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
 579                 return;
 580         }
 581
 582         WI_LOCK(sc);
 583
 584         /* Disable interrupts. */
 585         CSR_WRITE_2(sc, WI_INT_EN, 0);
 586
 587         status = CSR_READ_2(sc, WI_EVENT_STAT);
 588         if (status & WI_EV_RX)
 589                 wi_rx_intr(sc);
 590         if (status & WI_EV_ALLOC)
 591                 wi_tx_intr(sc);
 592         if (status & WI_EV_TX_EXC)
 593                 wi_tx_ex_intr(sc);
 594         if (status & WI_EV_INFO)
 595                 wi_info_intr(sc);
 596         if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 597             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 &&
 598             IF_QLEN(&ifp->if_snd) != 0)
 599                 wi_start(ifp);
 600
 601         /* Re-enable interrupts. */
 602         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 603
 604         WI_UNLOCK(sc);
 605
 606         return;
 607 }
 608
 609 void
 610 wi_init(void *arg)
 611 {
 612         struct wi_softc *sc = arg;
 613         struct ifnet *ifp = &sc->sc_if;
 614         struct ieee80211com *ic = &sc->sc_ic;
 615         struct wi_joinreq join;
 616         int i;
 617         int error = 0, wasenabled;
 618         struct ifaddr *ifa;
 619         struct sockaddr_dl *sdl;
 620         WI_LOCK_DECL();
 621
 622         WI_LOCK(sc);
 623
 624         if (sc->wi_gone) {
 625                 WI_UNLOCK(sc);
 626                 return;
 627         }
 628
 629         if ((wasenabled = sc->sc_enabled))
 630                 wi_stop(ifp, 1);
 631         wi_reset(sc);
 632
 633         /* common 802.11 configuration */
 634         ic->ic_flags &= ~IEEE80211_F_IBSSON;
 635         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
 636         switch (ic->ic_opmode) {
 637         case IEEE80211_M_STA:
 638                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_BSS);
 639                 break;
 640         case IEEE80211_M_IBSS:
 641                 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_ibss_port);
 642                 ic->ic_flags |= IEEE80211_F_IBSSON;
 643                 break;
 644         case IEEE80211_M_AHDEMO:
 645                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 646                 break;
 647         case IEEE80211_M_HOSTAP:
 648                 /*
 649                  * For PRISM cards, override the empty SSID, because in
 650                  * HostAP mode the controller will lock up otherwise.
 651                  */
 652                 if (sc->sc_firmware_type == WI_INTERSIL &&
 653                     ic->ic_des_esslen == 0) {
 654                         ic->ic_des_essid[0] = ' ';
 655                         ic->ic_des_esslen = 1;
 656                 }
 657                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_HOSTAP);
 658                 break;
 659         case IEEE80211_M_MONITOR:
 660                 if (sc->sc_firmware_type == WI_LUCENT)
 661                         wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 662                 wi_cmd(sc, WI_CMD_DEBUG | (WI_TEST_MONITOR << 8), 0, 0, 0);
 663                 break;
 664         }
 665
 666         /* Intersil interprets this RID as joining ESS even in IBSS mode */
 667         if (sc->sc_firmware_type == WI_LUCENT &&
 668             (ic->ic_flags & IEEE80211_F_IBSSON) && ic->ic_des_esslen > 0)
 669                 wi_write_val(sc, WI_RID_CREATE_IBSS, 1);
 670         else
 671                 wi_write_val(sc, WI_RID_CREATE_IBSS, 0);
 672         wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
 673         wi_write_ssid(sc, WI_RID_DESIRED_SSID, ic->ic_des_essid,
 674             ic->ic_des_esslen);
 675         wi_write_val(sc, WI_RID_OWN_CHNL,
 676                 ieee80211_chan2ieee(ic, ic->ic_ibss_chan));
 677         wi_write_ssid(sc, WI_RID_OWN_SSID, ic->ic_des_essid, ic->ic_des_esslen);
 678
 679         ifa = ifaddr_byindex(ifp->if_index);
 680         sdl = (struct sockaddr_dl *) ifa->ifa_addr;
 681         IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(sdl));
 682         wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, IEEE80211_ADDR_LEN);
 683
 684         wi_write_val(sc, WI_RID_PM_ENABLED,
 685             (ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0);
 686
 687         /* not yet common 802.11 configuration */
 688         wi_write_val(sc, WI_RID_MAX_DATALEN, sc->sc_max_datalen);
 689         wi_write_val(sc, WI_RID_RTS_THRESH, ic->ic_rtsthreshold);
 690         if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
 691                 wi_write_val(sc, WI_RID_FRAG_THRESH, ic->ic_fragthreshold);
 692
 693         /* driver specific 802.11 configuration */
 694         if (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)
 695                 wi_write_val(sc, WI_RID_SYSTEM_SCALE, sc->sc_system_scale);
 696         if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
 697                 wi_write_val(sc, WI_RID_ROAMING_MODE, sc->sc_roaming_mode);
 698         if (sc->sc_flags & WI_FLAGS_HAS_MOR)
 699                 wi_write_val(sc, WI_RID_MICROWAVE_OVEN, sc->sc_microwave_oven);
 700         wi_write_txrate(sc);
 701         wi_write_ssid(sc, WI_RID_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 702
 703         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
 704             sc->sc_firmware_type == WI_INTERSIL) {
 705                 wi_write_val(sc, WI_RID_OWN_BEACON_INT, ic->ic_lintval);
 706                 wi_write_val(sc, WI_RID_BASIC_RATE, 0x03);   /* 1, 2 */
 707                 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0x0f); /* 1, 2, 5.5, 11 */
 708                 wi_write_val(sc, WI_RID_DTIM_PERIOD, 1);
 709         }
 710
 711         /*
 712          * Initialize promisc mode.
 713          *      Being in the Host-AP mode causes a great
 714          *      deal of pain if primisc mode is set.
 715          *      Therefore we avoid confusing the firmware
 716          *      and always reset promisc mode in Host-AP
 717          *      mode.  Host-AP sees all the packets anyway.
 718          */
 719         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
 720             (ifp->if_flags & IFF_PROMISC) != 0) {
 721                 wi_write_val(sc, WI_RID_PROMISC, 1);
 722         } else {
 723                 wi_write_val(sc, WI_RID_PROMISC, 0);
 724         }
 725
 726         /* Configure WEP. */
 727         if (ic->ic_caps & IEEE80211_C_WEP)
 728                 wi_write_wep(sc);
 729
 730         /* Set multicast filter. */
 731         wi_write_multi(sc);
 732
 733         /* Allocate fids for the card */
 734         if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) {
 735                 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
 736                 if (sc->sc_firmware_type == WI_SYMBOL)
 737                         sc->sc_buflen = 1585;   /* XXX */
 738                 for (i = 0; i < sc->sc_ntxbuf; i++) {
 739                         error = wi_alloc_fid(sc, sc->sc_buflen,
 740                             &sc->sc_txd[i].d_fid);
 741                         if (error) {
 742                                 device_printf(sc->sc_dev,
 743                                     "tx buffer allocation failed (error %u)\n",
 744                                     error);
 745                                 goto out;
 746                         }
 747                         sc->sc_txd[i].d_len = 0;
 748                 }
 749         }
 750         sc->sc_txcur = sc->sc_txnext = 0;
 751
 752         /* Enable desired port */
 753         wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
 754
 755         sc->sc_enabled = 1;
 756         ifp->if_flags |= IFF_RUNNING;
 757         ifp->if_flags &= ~IFF_OACTIVE;
 758         if (ic->ic_opmode == IEEE80211_M_AHDEMO ||
 759             ic->ic_opmode == IEEE80211_M_MONITOR ||
 760             ic->ic_opmode == IEEE80211_M_HOSTAP)
 761                 ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
 762
 763         /* Enable interrupts if not polling */
 764 #ifdef DEVICE_POLLING
 765         if ((ifp->if_flags & IFF_POLLING) == 0)
 766 #endif
 767                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 768
 769         if (!wasenabled &&
 770             ic->ic_opmode == IEEE80211_M_HOSTAP &&
 771             sc->sc_firmware_type == WI_INTERSIL) {
 772                 /* XXX: some card need to be re-enabled for hostap */
 773                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
 774                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
 775         }
 776
 777         if (ic->ic_opmode == IEEE80211_M_STA &&
 778             ((ic->ic_flags & IEEE80211_F_DESBSSID) ||
 779             ic->ic_des_chan != IEEE80211_CHAN_ANYC)) {
 780                 memset(&join, 0, sizeof(join));
 781                 if (ic->ic_flags & IEEE80211_F_DESBSSID)
 782                         IEEE80211_ADDR_COPY(&join.wi_bssid, ic->ic_des_bssid);
 783                 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC)
 784                         join.wi_chan = htole16(
 785                                 ieee80211_chan2ieee(ic, ic->ic_des_chan));
 786                 /* Lucent firmware does not support the JOIN RID. */
 787                 if (sc->sc_firmware_type != WI_LUCENT)
 788                         wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
 789         }
 790
 791         WI_UNLOCK(sc);
 792         return;
 793 out:
 794         if (error) {
 795                 if_printf(ifp, "interface not running\n");
 796                 wi_stop(ifp, 1);
 797         }
 798         WI_UNLOCK(sc);
 799         DPRINTF(("wi_init: return %d\n", error));
 800         return;
 801 }
 802
 803 void
 804 wi_stop(struct ifnet *ifp, int disable)
 805 {
 806         struct ieee80211com *ic = (struct ieee80211com *) ifp;
 807         struct wi_softc *sc = ifp->if_softc;
 808         WI_LOCK_DECL();
 809
 810         WI_LOCK(sc);
 811
 812         DELAY(100000);
 813
 814         ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
 815         if (sc->sc_enabled && !sc->wi_gone) {
 816                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 817                 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
 818                 if (disable) {
 819 #ifdef __NetBSD__
 820                         if (sc->sc_disable)
 821                                 (*sc->sc_disable)(sc);
 822 #endif
 823                         sc->sc_enabled = 0;
 824                 }
 825         } else if (sc->wi_gone && disable)      /* gone --> not enabled */
 826             sc->sc_enabled = 0;
 827
 828         sc->sc_tx_timer = 0;
 829         sc->sc_scan_timer = 0;
 830         sc->sc_syn_timer = 0;
 831         sc->sc_false_syns = 0;
 832         sc->sc_naps = 0;
 833         ifp->if_flags &= ~(IFF_OACTIVE | IFF_RUNNING);
 834 #ifdef DEVICE_POLLING
 835         ether_poll_deregister(ifp);
 836 #endif
 837         ifp->if_timer = 0;
 838
 839         WI_UNLOCK(sc);
 840 }
 841
 842 static void
 843 wi_start(struct ifnet *ifp)
 844 {
 845         struct wi_softc *sc = ifp->if_softc;
 846         struct ieee80211com *ic = &sc->sc_ic;
 847         struct ieee80211_node *ni;
 848         struct ieee80211_frame *wh;
 849         struct mbuf *m0;
 850         struct wi_frame frmhdr;
 851         int cur, fid, off, error;
 852         WI_LOCK_DECL();
 853
 854         WI_LOCK(sc);
 855
 856         if (sc->wi_gone) {
 857                 WI_UNLOCK(sc);
 858                 return;
 859         }
 860         if (sc->sc_flags & WI_FLAGS_OUTRANGE) {
 861                 WI_UNLOCK(sc);
 862                 return;
 863         }
 864
 865         memset(&frmhdr, 0, sizeof(frmhdr));
 866         cur = sc->sc_txnext;
 867         for (;;) {
 868                 IF_POLL(&ic->ic_mgtq, m0);
 869                 if (m0 != NULL) {
 870                         if (sc->sc_txd[cur].d_len != 0) {
 871                                 ifp->if_flags |= IFF_OACTIVE;
 872                                 break;
 873                         }
 874                         IF_DEQUEUE(&ic->ic_mgtq, m0);
 875                         /*
 876                          * Hack!  The referenced node pointer is in the
 877                          * rcvif field of the packet header.  This is
 878                          * placed there by ieee80211_mgmt_output because
 879                          * we need to hold the reference with the frame
 880                          * and there's no other way (other than packet
 881                          * tags which we consider too expensive to use)
 882                          * to pass it along.
 883                          */
 884                         ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
 885                         m0->m_pkthdr.rcvif = NULL;
 886
 887                         m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
 888                             (caddr_t)&frmhdr.wi_ehdr);
 889                         frmhdr.wi_ehdr.ether_type = 0;
 890                         wh = mtod(m0, struct ieee80211_frame *);
 891                 } else {
 892                         if (ic->ic_state != IEEE80211_S_RUN)
 893                                 break;
 894                         IFQ_POLL(&ifp->if_snd, m0);
 895                         if (m0 == NULL)
 896                                 break;
 897                         if (sc->sc_txd[cur].d_len != 0) {
 898                                 ifp->if_flags |= IFF_OACTIVE;
 899                                 break;
 900                         }
 901                         IFQ_DEQUEUE(&ifp->if_snd, m0);
 902                         ifp->if_opackets++;
 903                         m_copydata(m0, 0, ETHER_HDR_LEN,
 904                             (caddr_t)&frmhdr.wi_ehdr);
 905                         BPF_MTAP(ifp, m0);
 906
 907                         m0 = ieee80211_encap(ifp, m0, &ni);
 908                         if (m0 == NULL) {
 909                                 ifp->if_oerrors++;
 910                                 continue;
 911                         }
 912                         wh = mtod(m0, struct ieee80211_frame *);
 913                         if (ic->ic_flags & IEEE80211_F_WEPON)
 914                                 wh->i_fc[1] |= IEEE80211_FC1_WEP;
 915
 916                 }
 917
 918                 if (ic->ic_rawbpf != NULL)
 919                         bpf_mtap(ic->ic_rawbpf, m0);
 920
 921                 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 922                 if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
 923                     (wh->i_fc[1] & IEEE80211_FC1_WEP)) {
 924                         if ((m0 = ieee80211_wep_crypt(ifp, m0, 1)) == NULL) {
 925                                 ifp->if_oerrors++;
 926                                 if (ni && ni != ic->ic_bss)
 927                                         ieee80211_free_node(ic, ni);
 928                                 continue;
 929                         }
 930                         frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 931                 }
 932
 933                 if (sc->sc_drvbpf) {
 934                         sc->sc_tx_th.wt_rate =
 935                                 ni->ni_rates.rs_rates[ni->ni_txrate];
 936                         bpf_ptap(sc->sc_drvbpf, m0, &sc->sc_tx_th,
 937                                  sc->sc_tx_th_len);
 938                 }
 939
 940                 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 941                     (caddr_t)&frmhdr.wi_whdr);
 942                 m_adj(m0, sizeof(struct ieee80211_frame));
 943                 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 944                 if (IFF_DUMPPKTS(ifp))
 945                         wi_dump_pkt(&frmhdr, NULL, -1);
 946                 fid = sc->sc_txd[cur].d_fid;
 947                 off = sizeof(frmhdr);
 948                 error = wi_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0
 949                      || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
 950                 m_freem(m0);
 951                 if (ni && ni != ic->ic_bss)
 952                         ieee80211_free_node(ic, ni);
 953                 if (error) {
 954                         ifp->if_oerrors++;
 955                         continue;
 956                 }
 957                 sc->sc_txd[cur].d_len = off;
 958                 if (sc->sc_txcur == cur) {
 959                         if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
 960                                 if_printf(ifp, "xmit failed\n");
 961                                 sc->sc_txd[cur].d_len = 0;
 962                                 continue;
 963                         }
 964                         sc->sc_tx_timer = 5;
 965                         ifp->if_timer = 1;
 966                 }
 967                 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 968         }
 969
 970         WI_UNLOCK(sc);
 971 }
 972
 973 static int
 974 wi_reset(struct wi_softc *sc)
 975 {
 976         struct ieee80211com *ic = &sc->sc_ic;
 977         struct ifnet *ifp = &ic->ic_if;
 978 #define WI_INIT_TRIES 3
 979         int i;
 980         int error = 0;
 981         int tries;
 982
 983         /* Symbol firmware cannot be initialized more than once */
 984         if (sc->sc_firmware_type == WI_SYMBOL && sc->sc_reset)
 985                 return (0);
 986         if (sc->sc_firmware_type == WI_SYMBOL)
 987                 tries = 1;
 988         else
 989                 tries = WI_INIT_TRIES;
 990
 991         for (i = 0; i < tries; i++) {
 992                 if ((error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0)) == 0)
 993                         break;
 994                 DELAY(WI_DELAY * 1000);
 995         }
 996         sc->sc_reset = 1;
 997
 998         if (i == tries) {
 999                 if_printf(ifp, "init failed\n");
1000                 return (error);
1001         }
1002
1003         CSR_WRITE_2(sc, WI_INT_EN, 0);
1004         CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
1005
1006         /* Calibrate timer. */
1007         wi_write_val(sc, WI_RID_TICK_TIME, 8);
1008
1009         return (0);
1010 #undef WI_INIT_TRIES
1011 }
1012
1013 static void
1014 wi_watchdog(struct ifnet *ifp)
1015 {
1016         struct wi_softc *sc = ifp->if_softc;
1017
1018         ifp->if_timer = 0;
1019         if (!sc->sc_enabled)
1020                 return;
1021
1022         if (sc->sc_tx_timer) {
1023                 if (--sc->sc_tx_timer == 0) {
1024                         if_printf(ifp, "device timeout\n");
1025                         ifp->if_oerrors++;
1026                         wi_init(ifp->if_softc);
1027                         return;
1028                 }
1029                 ifp->if_timer = 1;
1030         }
1031
1032         if (sc->sc_scan_timer) {
1033                 if (--sc->sc_scan_timer <= WI_SCAN_WAIT - WI_SCAN_INQWAIT &&
1034                     sc->sc_firmware_type == WI_INTERSIL) {
1035                         DPRINTF(("wi_watchdog: inquire scan\n"));
1036                         wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
1037                 }
1038                 if (sc->sc_scan_timer)
1039                         ifp->if_timer = 1;
1040         }
1041
1042         if (sc->sc_syn_timer) {
1043                 if (--sc->sc_syn_timer == 0) {
1044                         struct ieee80211com *ic = (struct ieee80211com *) ifp;
1045                         DPRINTF2(("wi_watchdog: %d false syns\n",
1046                             sc->sc_false_syns));
1047                         sc->sc_false_syns = 0;
1048                         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1049                         sc->sc_syn_timer = 5;
1050                 }
1051                 ifp->if_timer = 1;
1052         }
1053
1054         /* TODO: rate control */
1055         ieee80211_watchdog(ifp);
1056 }
1057
1058 static int
1059 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1060 {
1061         struct wi_softc *sc = ifp->if_softc;
1062         struct ieee80211com *ic = &sc->sc_ic;
1063         struct ifreq *ifr = (struct ifreq *)data;
1064         struct ieee80211req *ireq;
1065         u_int8_t nodename[IEEE80211_NWID_LEN];
1066         int error = 0;
1067         struct wi_req wreq;
1068         WI_LOCK_DECL();
1069
1070         WI_LOCK(sc);
1071
1072         if (sc->wi_gone) {
1073                 error = ENODEV;
1074                 goto out;
1075         }
1076
1077         switch (cmd) {
1078         case SIOCSIFFLAGS:
1079                 /*
1080                  * Can't do promisc and hostap at the same time.  If all that's
1081                  * changing is the promisc flag, try to short-circuit a call to
1082                  * wi_init() by just setting PROMISC in the hardware.
1083                  */
1084                 if (ifp->if_flags & IFF_UP) {
1085                         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
1086                             ifp->if_flags & IFF_RUNNING) {
1087                                 if (ifp->if_flags & IFF_PROMISC &&
1088                                     !(sc->sc_if_flags & IFF_PROMISC)) {
1089                                         wi_write_val(sc, WI_RID_PROMISC, 1);
1090                                 } else if (!(ifp->if_flags & IFF_PROMISC) &&
1091                                     sc->sc_if_flags & IFF_PROMISC) {
1092                                         wi_write_val(sc, WI_RID_PROMISC, 0);
1093                                 } else {
1094                                         wi_init(sc);
1095                                 }
1096                         } else {
1097                                 wi_init(sc);
1098                         }
1099                 } else {
1100                         if (ifp->if_flags & IFF_RUNNING) {
1101                                 wi_stop(ifp, 1);
1102                         }
1103                         sc->wi_gone = 0;
1104                 }
1105                 sc->sc_if_flags = ifp->if_flags;
1106                 error = 0;
1107                 break;
1108         case SIOCADDMULTI:
1109         case SIOCDELMULTI:
1110                 error = wi_write_multi(sc);
1111                 break;
1112         case SIOCGIFGENERIC:
1113                 error = wi_get_cfg(ifp, cmd, data, cr);
1114                 break;
1115         case SIOCSIFGENERIC:
1116                 error = suser_cred(cr, NULL_CRED_OKAY);
1117                 if (error)
1118                         break;
1119                 error = wi_set_cfg(ifp, cmd, data);
1120                 break;
1121         case SIOCGPRISM2DEBUG:
1122                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1123                 if (error)
1124                         break;
1125                 if (!(ifp->if_flags & IFF_RUNNING) ||
1126                     sc->sc_firmware_type == WI_LUCENT) {
1127                         error = EIO;
1128                         break;
1129                 }
1130                 error = wi_get_debug(sc, &wreq);
1131                 if (error == 0)
1132                         error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
1133                 break;
1134         case SIOCSPRISM2DEBUG:
1135                 if ((error = suser_cred(cr, NULL_CRED_OKAY)))
1136                         goto out;
1137                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1138                 if (error)
1139                         break;
1140                 error = wi_set_debug(sc, &wreq);
1141                 break;
1142         case SIOCG80211:
1143                 ireq = (struct ieee80211req *) data;
1144                 switch (ireq->i_type) {
1145                 case IEEE80211_IOC_STATIONNAME:
1146                         ireq->i_len = sc->sc_nodelen + 1;
1147                         error = copyout(sc->sc_nodename, ireq->i_data,
1148                                         ireq->i_len);
1149                         break;
1150                 default:
1151                         error = ieee80211_ioctl(ifp, cmd, data, cr);
1152                         break;
1153                 }
1154                 break;
1155         case SIOCS80211:
1156                 error = suser_cred(cr, NULL_CRED_OKAY);
1157                 if (error)
1158                         break;
1159                 ireq = (struct ieee80211req *) data;
1160                 switch (ireq->i_type) {
1161                 case IEEE80211_IOC_STATIONNAME:
1162                         if (ireq->i_val != 0 ||
1163                             ireq->i_len > IEEE80211_NWID_LEN) {
1164                                 error = EINVAL;
1165                                 break;
1166                         }
1167                         memset(nodename, 0, IEEE80211_NWID_LEN);
1168                         error = copyin(ireq->i_data, nodename, ireq->i_len);
1169                         if (error)
1170                                 break;
1171                         if (sc->sc_enabled) {
1172                                 error = wi_write_ssid(sc, WI_RID_NODENAME,
1173                                         nodename, ireq->i_len);
1174                                 if (error)
1175                                         break;
1176                         }
1177                         memcpy(sc->sc_nodename, nodename, IEEE80211_NWID_LEN);
1178                         sc->sc_nodelen = ireq->i_len;
1179                         break;
1180                 default:
1181                         error = ieee80211_ioctl(ifp, cmd, data, cr);
1182                         break;
1183                 }
1184                 break;
1185         case SIOCSIFCAP:
1186                 ifp->if_capenable &= ~(IFCAP_POLLING);
1187                 ifp->if_capenable |= ifr->ifr_reqcap & (IFCAP_POLLING);
1188                 if (ifp->if_flags & IFF_RUNNING)
1189                         wi_init(sc);
1190                 break;
1191         default:
1192                 error = ieee80211_ioctl(ifp, cmd, data, cr);
1193                 break;
1194         }
1195         if (error == ENETRESET) {
1196                 if (sc->sc_enabled)
1197                         wi_init(sc);    /* XXX no error return */
1198                 error = 0;
1199         }
1200 out:
1201         WI_UNLOCK(sc);
1202
1203         return (error);
1204 }
1205
1206 static int
1207 wi_media_change(struct ifnet *ifp)
1208 {
1209         struct wi_softc *sc = ifp->if_softc;
1210         int error;
1211
1212         error = ieee80211_media_change(ifp);
1213         if (error == ENETRESET) {
1214                 if (sc->sc_enabled)
1215                         wi_init(sc);    /* XXX no error return */
1216                 error = 0;
1217         }
1218         return error;
1219 }
1220
1221 static void
1222 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
1223 {
1224         struct wi_softc *sc = ifp->if_softc;
1225         struct ieee80211com *ic = &sc->sc_ic;
1226         u_int16_t val;
1227         int rate, len;
1228
1229         if (sc->wi_gone || !sc->sc_enabled) {
1230                 imr->ifm_active = IFM_IEEE80211 | IFM_NONE;
1231                 imr->ifm_status = 0;
1232                 return;
1233         }
1234
1235         imr->ifm_status = IFM_AVALID;
1236         imr->ifm_active = IFM_IEEE80211;
1237         if (ic->ic_state == IEEE80211_S_RUN &&
1238             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0)
1239                 imr->ifm_status |= IFM_ACTIVE;
1240         len = sizeof(val);
1241         if (wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) != 0)
1242                 rate = 0;
1243         else {
1244                 /* convert to 802.11 rate */
1245                 rate = val * 2;
1246                 if (sc->sc_firmware_type == WI_LUCENT) {
1247                         if (rate == 4 * 2)
1248                                 rate = 11;      /* 5.5Mbps */
1249                         else if (rate == 5 * 2)
1250                                 rate = 22;      /* 11Mbps */
1251                 } else {
1252                         if (rate == 4*2)
1253                                 rate = 11;      /* 5.5Mbps */
1254                         else if (rate == 8*2)
1255                                 rate = 22;      /* 11Mbps */
1256                 }
1257         }
1258         imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B);
1259         switch (ic->ic_opmode) {
1260         case IEEE80211_M_STA:
1261                 break;
1262         case IEEE80211_M_IBSS:
1263                 imr->ifm_active |= IFM_IEEE80211_ADHOC;
1264                 break;
1265         case IEEE80211_M_AHDEMO:
1266                 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0;
1267                 break;
1268         case IEEE80211_M_HOSTAP:
1269                 imr->ifm_active |= IFM_IEEE80211_HOSTAP;
1270                 break;
1271         case IEEE80211_M_MONITOR:
1272                 imr->ifm_active |= IFM_IEEE80211_MONITOR;
1273                 break;
1274         }
1275 }
1276
1277 static void
1278 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
1279 {
1280         struct ieee80211com *ic = &sc->sc_ic;
1281         struct ieee80211_node *ni = ic->ic_bss;
1282         struct ifnet *ifp = &ic->ic_if;
1283
1284         if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
1285                 return;
1286
1287         DPRINTF(("wi_sync_bssid: bssid %6D -> ", ni->ni_bssid, ":"));
1288         DPRINTF(("%6D ?\n", new_bssid, ":"));
1289
1290         /* In promiscuous mode, the BSSID field is not a reliable
1291          * indicator of the firmware's BSSID. Damp spurious
1292          * change-of-BSSID indications.
1293          */
1294         if ((ifp->if_flags & IFF_PROMISC) != 0 &&
1295             sc->sc_false_syns >= WI_MAX_FALSE_SYNS)
1296                 return;
1297
1298         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1299 }
1300
1301 static void
1302 wi_rx_monitor(struct wi_softc *sc, int fid)
1303 {
1304         struct ieee80211com *ic = &sc->sc_ic;
1305         struct ifnet *ifp = &ic->ic_if;
1306         struct wi_frame *rx_frame;
1307         struct mbuf *m;
1308         int datlen, hdrlen;
1309
1310         /* first allocate mbuf for packet storage */
1311         m = m_getcl(MB_DONTWAIT, MT_DATA, 0);
1312         if (m == NULL) {
1313                 ifp->if_ierrors++;
1314                 return;
1315         }
1316
1317         m->m_pkthdr.rcvif = ifp;
1318
1319         /* now read wi_frame first so we know how much data to read */
1320         if (wi_read_bap(sc, fid, 0, mtod(m, caddr_t), sizeof(*rx_frame))) {
1321                 ifp->if_ierrors++;
1322                 goto done;
1323         }
1324
1325         rx_frame = mtod(m, struct wi_frame *);
1326
1327         switch ((rx_frame->wi_status & WI_STAT_MAC_PORT) >> 8) {
1328         case 7:
1329                 switch (rx_frame->wi_whdr.i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
1330                 case IEEE80211_FC0_TYPE_DATA:
1331                         hdrlen = WI_DATA_HDRLEN;
1332                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1333                         break;
1334                 case IEEE80211_FC0_TYPE_MGT:
1335                         hdrlen = WI_MGMT_HDRLEN;
1336                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1337                         break;
1338                 case IEEE80211_FC0_TYPE_CTL:
1339                         /*
1340                          * prism2 cards don't pass control packets
1341                          * down properly or consistently, so we'll only
1342                          * pass down the header.
1343                          */
1344                         hdrlen = WI_CTL_HDRLEN;
1345                         datlen = 0;
1346                         break;
1347                 default:
1348                         if_printf(ifp, "received packet of unknown type "
1349                                 "on port 7\n");
1350                         ifp->if_ierrors++;
1351                         goto done;
1352                 }
1353                 break;
1354         case 0:
1355                 hdrlen = WI_DATA_HDRLEN;
1356                 datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1357                 break;
1358         default:
1359                 if_printf(ifp, "received packet on invalid "
1360                     "port (wi_status=0x%x)\n", rx_frame->wi_status);
1361                 ifp->if_ierrors++;
1362                 goto done;
1363         }
1364
1365         if (hdrlen + datlen + 2 > MCLBYTES) {
1366                 if_printf(ifp, "oversized packet received "
1367                     "(wi_dat_len=%d, wi_status=0x%x)\n",
1368                     datlen, rx_frame->wi_status);
1369                 ifp->if_ierrors++;
1370                 goto done;
1371         }
1372
1373         if (wi_read_bap(sc, fid, hdrlen, mtod(m, caddr_t) + hdrlen,
1374             datlen + 2) == 0) {
1375                 m->m_pkthdr.len = m->m_len = hdrlen + datlen;
1376                 ifp->if_ipackets++;
1377                 BPF_MTAP(ifp, m);       /* Handle BPF listeners. */
1378         } else
1379                 ifp->if_ierrors++;
1380 done:
1381         m_freem(m);
1382 }
1383
1384 static void
1385 wi_rx_intr(struct wi_softc *sc)
1386 {
1387         struct ieee80211com *ic = &sc->sc_ic;
1388         struct ifnet *ifp = &ic->ic_if;
1389         struct wi_frame frmhdr;
1390         struct mbuf *m;
1391         struct ieee80211_frame *wh;
1392         struct ieee80211_node *ni;
1393         int fid, len, off, rssi;
1394         u_int8_t dir;
1395         u_int16_t status;
1396         u_int32_t rstamp;
1397
1398         fid = CSR_READ_2(sc, WI_RX_FID);
1399
1400         if (sc->wi_debug.wi_monitor) {
1401                 /*
1402                  * If we are in monitor mode just
1403                  * read the data from the device.
1404                  */
1405                 wi_rx_monitor(sc, fid);
1406                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1407                 return;
1408         }
1409
1410         /* First read in the frame header */
1411         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
1412                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1413                 ifp->if_ierrors++;
1414                 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid));
1415                 return;
1416         }
1417
1418         if (IFF_DUMPPKTS(ifp))
1419                 wi_dump_pkt(&frmhdr, NULL, frmhdr.wi_rx_signal);
1420
1421         /*
1422          * Drop undecryptable or packets with receive errors here
1423          */
1424         status = le16toh(frmhdr.wi_status);
1425         if (status & WI_STAT_ERRSTAT) {
1426                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1427                 ifp->if_ierrors++;
1428                 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status));
1429                 return;
1430         }
1431         rssi = frmhdr.wi_rx_signal;
1432         rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
1433             le16toh(frmhdr.wi_rx_tstamp1);
1434
1435         len = le16toh(frmhdr.wi_dat_len);
1436         off = ALIGN(sizeof(struct ieee80211_frame));
1437
1438         /*
1439          * Sometimes the PRISM2.x returns bogusly large frames. Except
1440          * in monitor mode, just throw them away.
1441          */
1442         if (off + len > MCLBYTES) {
1443                 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1444                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1445                         ifp->if_ierrors++;
1446                         DPRINTF(("wi_rx_intr: oversized packet\n"));
1447                         return;
1448                 } else
1449                         len = 0;
1450         }
1451
1452         MGETHDR(m, MB_DONTWAIT, MT_DATA);
1453         if (m == NULL) {
1454                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1455                 ifp->if_ierrors++;
1456                 DPRINTF(("wi_rx_intr: MGET failed\n"));
1457                 return;
1458         }
1459         if (off + len > MHLEN) {
1460                 MCLGET(m, MB_DONTWAIT);
1461                 if ((m->m_flags & M_EXT) == 0) {
1462                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1463                         m_freem(m);
1464                         ifp->if_ierrors++;
1465                         DPRINTF(("wi_rx_intr: MCLGET failed\n"));
1466                         return;
1467                 }
1468         }
1469
1470         m->m_data += off - sizeof(struct ieee80211_frame);
1471         memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
1472         wi_read_bap(sc, fid, sizeof(frmhdr),
1473             m->m_data + sizeof(struct ieee80211_frame), len);
1474         m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
1475         m->m_pkthdr.rcvif = ifp;
1476
1477         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1478
1479         if (sc->sc_drvbpf) {
1480                 /* XXX replace divide by table */
1481                 sc->sc_rx_th.wr_rate = frmhdr.wi_rx_rate / 5;
1482                 sc->sc_rx_th.wr_antsignal = frmhdr.wi_rx_signal;
1483                 sc->sc_rx_th.wr_antnoise = frmhdr.wi_rx_silence;
1484                 sc->sc_rx_th.wr_flags = 0;
1485                 if (frmhdr.wi_status & WI_STAT_PCF)
1486                         sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_CFP;
1487                 bpf_ptap(sc->sc_drvbpf, m, &sc->sc_rx_th, sc->sc_rx_th_len);
1488         }
1489
1490         wh = mtod(m, struct ieee80211_frame *);
1491         if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1492                 /*
1493                  * WEP is decrypted by hardware. Clear WEP bit
1494                  * header for ieee80211_input().
1495                  */
1496                 wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
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.  We are required to pass
1508          * something so we fallback to ic_bss when this frame
1509          * is from an unknown sender.
1510          */
1511         if (ic->ic_opmode != IEEE80211_M_STA) {
1512                 ni = ieee80211_find_node(ic, wh->i_addr2);
1513                 if (ni == NULL)
1514                         ni = ieee80211_ref_node(ic->ic_bss);
1515         } else
1516                 ni = ieee80211_ref_node(ic->ic_bss);
1517         /*
1518          * Send frame up for processing.
1519          */
1520         ieee80211_input(ifp, m, ni, rssi, rstamp);
1521         /*
1522          * The frame may have caused the node to be marked for
1523          * reclamation (e.g. in response to a DEAUTH message)
1524          * so use free_node here instead of unref_node.
1525          */
1526         if (ni == ic->ic_bss)
1527                 ieee80211_unref_node(&ni);
1528         else
1529                 ieee80211_free_node(ic, ni);
1530 }
1531
1532 static void
1533 wi_tx_ex_intr(struct wi_softc *sc)
1534 {
1535         struct ieee80211com *ic = &sc->sc_ic;
1536         struct ifnet *ifp = &ic->ic_if;
1537         struct wi_frame frmhdr;
1538         int fid;
1539
1540         fid = CSR_READ_2(sc, WI_TX_CMP_FID);
1541         /* Read in the frame header */
1542         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
1543                 u_int16_t status = le16toh(frmhdr.wi_status);
1544
1545                 /*
1546                  * Spontaneous station disconnects appear as xmit
1547                  * errors.  Don't announce them and/or count them
1548                  * as an output error.
1549                  */
1550                 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
1551                         if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
1552                                 if_printf(ifp, "tx failed");
1553                                 if (status & WI_TXSTAT_RET_ERR)
1554                                         printf(", retry limit exceeded");
1555                                 if (status & WI_TXSTAT_AGED_ERR)
1556                                         printf(", max transmit lifetime exceeded");
1557                                 if (status & WI_TXSTAT_DISCONNECT)
1558                                         printf(", port disconnected");
1559                                 if (status & WI_TXSTAT_FORM_ERR)
1560                                         printf(", invalid format (data len %u src %6D)",
1561                                                 le16toh(frmhdr.wi_dat_len),
1562                                                 frmhdr.wi_ehdr.ether_shost, ":");
1563                                 if (status & ~0xf)
1564                                         printf(", status=0x%x", status);
1565                                 printf("\n");
1566                         }
1567                         ifp->if_oerrors++;
1568                 } else {
1569                         DPRINTF(("port disconnected\n"));
1570                         ifp->if_collisions++;   /* XXX */
1571                 }
1572         } else
1573                 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid));
1574         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
1575 }
1576
1577 static void
1578 wi_tx_intr(struct wi_softc *sc)
1579 {
1580         struct ieee80211com *ic = &sc->sc_ic;
1581         struct ifnet *ifp = &ic->ic_if;
1582         int fid, cur;
1583
1584         if (sc->wi_gone)
1585                 return;
1586
1587         fid = CSR_READ_2(sc, WI_ALLOC_FID);
1588         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1589
1590         cur = sc->sc_txcur;
1591         if (sc->sc_txd[cur].d_fid != fid) {
1592                 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n",
1593                     fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
1594                 return;
1595         }
1596         sc->sc_tx_timer = 0;
1597         sc->sc_txd[cur].d_len = 0;
1598         sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
1599         if (sc->sc_txd[cur].d_len == 0)
1600                 ifp->if_flags &= ~IFF_OACTIVE;
1601         else {
1602                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
1603                     0, 0)) {
1604                         if_printf(ifp, "xmit failed\n");
1605                         sc->sc_txd[cur].d_len = 0;
1606                 } else {
1607                         sc->sc_tx_timer = 5;
1608                         ifp->if_timer = 1;
1609                 }
1610         }
1611 }
1612
1613 static void
1614 wi_info_intr(struct wi_softc *sc)
1615 {
1616         struct ieee80211com *ic = &sc->sc_ic;
1617         struct ifnet *ifp = &ic->ic_if;
1618         int i, fid, len, off;
1619         u_int16_t ltbuf[2];
1620         u_int16_t stat;
1621         u_int32_t *ptr;
1622
1623         fid = CSR_READ_2(sc, WI_INFO_FID);
1624         wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
1625
1626         switch (le16toh(ltbuf[1])) {
1627
1628         case WI_INFO_LINK_STAT:
1629                 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
1630                 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
1631                 switch (le16toh(stat)) {
1632                 case WI_INFO_LINK_STAT_CONNECTED:
1633                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1634                         if (ic->ic_state == IEEE80211_S_RUN &&
1635                             ic->ic_opmode != IEEE80211_M_IBSS)
1636                                 break;
1637                         /* FALLTHROUGH */
1638                 case WI_INFO_LINK_STAT_AP_CHG:
1639                         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1640                         break;
1641                 case WI_INFO_LINK_STAT_AP_INR:
1642                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1643                         break;
1644                 case WI_INFO_LINK_STAT_AP_OOR:
1645                         if (sc->sc_firmware_type == WI_SYMBOL &&
1646                             sc->sc_scan_timer > 0) {
1647                                 if (wi_cmd(sc, WI_CMD_INQUIRE,
1648                                     WI_INFO_HOST_SCAN_RESULTS, 0, 0) != 0)
1649                                         sc->sc_scan_timer = 0;
1650                                 break;
1651                         }
1652                         if (ic->ic_opmode == IEEE80211_M_STA)
1653                                 sc->sc_flags |= WI_FLAGS_OUTRANGE;
1654                         break;
1655                 case WI_INFO_LINK_STAT_DISCONNECTED:
1656                 case WI_INFO_LINK_STAT_ASSOC_FAILED:
1657                         if (ic->ic_opmode == IEEE80211_M_STA)
1658                                 ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
1659                         break;
1660                 }
1661                 break;
1662
1663         case WI_INFO_COUNTERS:
1664                 /* some card versions have a larger stats structure */
1665                 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
1666                 ptr = (u_int32_t *)&sc->sc_stats;
1667                 off = sizeof(ltbuf);
1668                 for (i = 0; i < len; i++, off += 2, ptr++) {
1669                         wi_read_bap(sc, fid, off, &stat, sizeof(stat));
1670 #ifdef WI_HERMES_STATS_WAR
1671                         if (stat & 0xf000)
1672                                 stat = ~stat;
1673 #endif
1674                         *ptr += stat;
1675                 }
1676                 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries +
1677                     sc->sc_stats.wi_tx_multi_retries +
1678                     sc->sc_stats.wi_tx_retry_limit;
1679                 break;
1680
1681         case WI_INFO_SCAN_RESULTS:
1682         case WI_INFO_HOST_SCAN_RESULTS:
1683                 wi_scan_result(sc, fid, le16toh(ltbuf[0]));
1684                 break;
1685
1686         default:
1687                 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid,
1688                     le16toh(ltbuf[1]), le16toh(ltbuf[0])));
1689                 break;
1690         }
1691         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
1692 }
1693
1694 static int
1695 wi_write_multi(struct wi_softc *sc)
1696 {
1697         struct ifnet *ifp = &sc->sc_ic.ic_if;
1698         int n;
1699         struct ifmultiaddr *ifma;
1700         struct wi_mcast mlist;
1701
1702         if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1703 allmulti:
1704                 memset(&mlist, 0, sizeof(mlist));
1705                 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1706                     sizeof(mlist));
1707         }
1708
1709         n = 0;
1710         LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1711                 if (ifma->ifma_addr->sa_family != AF_LINK)
1712                         continue;
1713                 if (n >= 16)
1714                         goto allmulti;
1715                 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
1716                     (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
1717                 n++;
1718         }
1719         return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1720             IEEE80211_ADDR_LEN * n);
1721 }
1722
1723 static void
1724 wi_read_nicid(struct wi_softc *sc)
1725 {
1726         struct wi_card_ident *id;
1727         char *p;
1728         int len;
1729         u_int16_t ver[4];
1730
1731         /* getting chip identity */
1732         memset(ver, 0, sizeof(ver));
1733         len = sizeof(ver);
1734         wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
1735         device_printf(sc->sc_dev, "using ");
1736
1737         sc->sc_firmware_type = WI_NOTYPE;
1738         for (id = wi_card_ident; id->card_name != NULL; id++) {
1739                 if (le16toh(ver[0]) == id->card_id) {
1740                         printf("%s", id->card_name);
1741                         sc->sc_firmware_type = id->firm_type;
1742                         break;
1743                 }
1744         }
1745         if (sc->sc_firmware_type == WI_NOTYPE) {
1746                 if (le16toh(ver[0]) & 0x8000) {
1747                         printf("Unknown PRISM2 chip");
1748                         sc->sc_firmware_type = WI_INTERSIL;
1749                 } else {
1750                         printf("Unknown Lucent chip");
1751                         sc->sc_firmware_type = WI_LUCENT;
1752                 }
1753         }
1754
1755         /* get primary firmware version (Only Prism chips) */
1756         if (sc->sc_firmware_type != WI_LUCENT) {
1757                 memset(ver, 0, sizeof(ver));
1758                 len = sizeof(ver);
1759                 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
1760                 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
1761                     le16toh(ver[3]) * 100 + le16toh(ver[1]);
1762         }
1763
1764         /* get station firmware version */
1765         memset(ver, 0, sizeof(ver));
1766         len = sizeof(ver);
1767         wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
1768         sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
1769             le16toh(ver[3]) * 100 + le16toh(ver[1]);
1770         if (sc->sc_firmware_type == WI_INTERSIL &&
1771             (sc->sc_sta_firmware_ver == 10102 ||
1772              sc->sc_sta_firmware_ver == 20102)) {
1773                 char ident[12];
1774                 memset(ident, 0, sizeof(ident));
1775                 len = sizeof(ident);
1776                 /* value should be the format like "V2.00-11" */
1777                 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
1778                     *(p = (char *)ident) >= 'A' &&
1779                     p[2] == '.' && p[5] == '-' && p[8] == '\0') {
1780                         sc->sc_firmware_type = WI_SYMBOL;
1781                         sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 +
1782                             (p[3] - '0') * 1000 + (p[4] - '0') * 100 +
1783                             (p[6] - '0') * 10 + (p[7] - '0');
1784                 }
1785         }
1786         printf("\n");
1787         device_printf(sc->sc_dev, "%s Firmware: ",
1788              sc->sc_firmware_type == WI_LUCENT ? "Lucent" :
1789             (sc->sc_firmware_type == WI_SYMBOL ? "Symbol" : "Intersil"));
1790         if (sc->sc_firmware_type != WI_LUCENT)  /* XXX */
1791                 printf("Primary (%u.%u.%u), ",
1792                     sc->sc_pri_firmware_ver / 10000,
1793                     (sc->sc_pri_firmware_ver % 10000) / 100,
1794                     sc->sc_pri_firmware_ver % 100);
1795         printf("Station (%u.%u.%u)\n",
1796             sc->sc_sta_firmware_ver / 10000,
1797             (sc->sc_sta_firmware_ver % 10000) / 100,
1798             sc->sc_sta_firmware_ver % 100);
1799 }
1800
1801 static int
1802 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
1803 {
1804         struct wi_ssid ssid;
1805
1806         if (buflen > IEEE80211_NWID_LEN)
1807                 return ENOBUFS;
1808         memset(&ssid, 0, sizeof(ssid));
1809         ssid.wi_len = htole16(buflen);
1810         memcpy(ssid.wi_ssid, buf, buflen);
1811         return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
1812 }
1813
1814 static int
1815 wi_get_cfg(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1816 {
1817         struct wi_softc *sc = ifp->if_softc;
1818         struct ieee80211com *ic = &sc->sc_ic;
1819         struct ifreq *ifr = (struct ifreq *)data;
1820         struct wi_req wreq;
1821         struct wi_scan_res *res;
1822         size_t reslen;
1823         int len, n, error, mif, val, off, i;
1824
1825         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1826         if (error)
1827                 return error;
1828         len = (wreq.wi_len - 1) * 2;
1829         if (len < sizeof(u_int16_t))
1830                 return ENOSPC;
1831         if (len > sizeof(wreq.wi_val))
1832                 len = sizeof(wreq.wi_val);
1833
1834         switch (wreq.wi_type) {
1835
1836         case WI_RID_IFACE_STATS:
1837                 memcpy(wreq.wi_val, &sc->sc_stats, sizeof(sc->sc_stats));
1838                 if (len < sizeof(sc->sc_stats))
1839                         error = ENOSPC;
1840                 else
1841                         len = sizeof(sc->sc_stats);
1842                 break;
1843
1844         case WI_RID_ENCRYPTION:
1845         case WI_RID_TX_CRYPT_KEY:
1846         case WI_RID_DEFLT_CRYPT_KEYS:
1847         case WI_RID_TX_RATE:
1848                 return ieee80211_cfgget(ifp, cmd, data, cr);
1849
1850         case WI_RID_MICROWAVE_OVEN:
1851                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_MOR)) {
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_microwave_oven);
1857                 len = sizeof(u_int16_t);
1858                 break;
1859
1860         case WI_RID_DBM_ADJUST:
1861                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_DBMADJUST)) {
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_dbm_offset);
1867                 len = sizeof(u_int16_t);
1868                 break;
1869
1870         case WI_RID_ROAMING_MODE:
1871                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_ROAMING)) {
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_roaming_mode);
1877                 len = sizeof(u_int16_t);
1878                 break;
1879
1880         case WI_RID_SYSTEM_SCALE:
1881                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)) {
1882                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1883                             &len);
1884                         break;
1885                 }
1886                 wreq.wi_val[0] = htole16(sc->sc_system_scale);
1887                 len = sizeof(u_int16_t);
1888                 break;
1889
1890         case WI_RID_FRAG_THRESH:
1891                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)) {
1892                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1893                             &len);
1894                         break;
1895                 }
1896                 wreq.wi_val[0] = htole16(ic->ic_fragthreshold);
1897                 len = sizeof(u_int16_t);
1898                 break;
1899
1900         case WI_RID_READ_APS:
1901                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1902                         return ieee80211_cfgget(ifp, cmd, data, cr);
1903                 if (sc->sc_scan_timer > 0) {
1904                         error = EINPROGRESS;
1905                         break;
1906                 }
1907                 n = sc->sc_naps;
1908                 if (len < sizeof(n)) {
1909                         error = ENOSPC;
1910                         break;
1911                 }
1912                 if (len < sizeof(n) + sizeof(struct wi_apinfo) * n)
1913                         n = (len - sizeof(n)) / sizeof(struct wi_apinfo);
1914                 len = sizeof(n) + sizeof(struct wi_apinfo) * n;
1915                 memcpy(wreq.wi_val, &n, sizeof(n));
1916                 memcpy((caddr_t)wreq.wi_val + sizeof(n), sc->sc_aps,
1917                     sizeof(struct wi_apinfo) * n);
1918                 break;
1919
1920         case WI_RID_PRISM2:
1921                 wreq.wi_val[0] = sc->sc_firmware_type != WI_LUCENT;
1922                 len = sizeof(u_int16_t);
1923                 break;
1924
1925         case WI_RID_MIF:
1926                 mif = wreq.wi_val[0];
1927                 error = wi_cmd(sc, WI_CMD_READMIF, mif, 0, 0);
1928                 val = CSR_READ_2(sc, WI_RESP0);
1929                 wreq.wi_val[0] = val;
1930                 len = sizeof(u_int16_t);
1931                 break;
1932
1933         case WI_RID_ZERO_CACHE:
1934         case WI_RID_PROCFRAME:          /* ignore for compatibility */
1935                 /* XXX ??? */
1936                 break;
1937
1938         case WI_RID_READ_CACHE:
1939                 return ieee80211_cfgget(ifp, cmd, data, cr);
1940
1941         case WI_RID_SCAN_RES:           /* compatibility interface */
1942                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1943                         return ieee80211_cfgget(ifp, cmd, data, cr);
1944                 if (sc->sc_scan_timer > 0) {
1945                         error = EINPROGRESS;
1946                         break;
1947                 }
1948                 n = sc->sc_naps;
1949                 if (sc->sc_firmware_type == WI_LUCENT) {
1950                         off = 0;
1951                         reslen = WI_WAVELAN_RES_SIZE;
1952                 } else {
1953                         off = sizeof(struct wi_scan_p2_hdr);
1954                         reslen = WI_PRISM2_RES_SIZE;
1955                 }
1956                 if (len < off + reslen * n)
1957                         n = (len - off) / reslen;
1958                 len = off + reslen * n;
1959                 if (off != 0) {
1960                         struct wi_scan_p2_hdr *p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1961                         /*
1962                          * Prepend Prism-specific header.
1963                          */
1964                         if (len < sizeof(struct wi_scan_p2_hdr)) {
1965                                 error = ENOSPC;
1966                                 break;
1967                         }
1968                         p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1969                         p2->wi_rsvd = 0;
1970                         p2->wi_reason = n;      /* XXX */
1971                 }
1972                 for (i = 0; i < n; i++, off += reslen) {
1973                         const struct wi_apinfo *ap = &sc->sc_aps[i];
1974
1975                         res = (struct wi_scan_res *)((char *)wreq.wi_val + off);
1976                         res->wi_chan = ap->channel;
1977                         res->wi_noise = ap->noise;
1978                         res->wi_signal = ap->signal;
1979                         IEEE80211_ADDR_COPY(res->wi_bssid, ap->bssid);
1980                         res->wi_interval = ap->interval;
1981                         res->wi_capinfo = ap->capinfo;
1982                         res->wi_ssid_len = ap->namelen;
1983                         memcpy(res->wi_ssid, ap->name,
1984                                 IEEE80211_NWID_LEN);
1985                         if (sc->sc_firmware_type != WI_LUCENT) {
1986                                 /* XXX not saved from Prism cards */
1987                                 memset(res->wi_srates, 0,
1988                                         sizeof(res->wi_srates));
1989                                 res->wi_rate = ap->rate;
1990                                 res->wi_rsvd = 0;
1991                         }
1992                 }
1993                 break;
1994
1995         default:
1996                 if (sc->sc_enabled) {
1997                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1998                             &len);
1999                         break;
2000                 }
2001                 switch (wreq.wi_type) {
2002                 case WI_RID_MAX_DATALEN:
2003                         wreq.wi_val[0] = htole16(sc->sc_max_datalen);
2004                         len = sizeof(u_int16_t);
2005                         break;
2006                 case WI_RID_RTS_THRESH:
2007                         wreq.wi_val[0] = htole16(ic->ic_rtsthreshold);
2008                         len = sizeof(u_int16_t);
2009                         break;
2010                 case WI_RID_CNFAUTHMODE:
2011                         wreq.wi_val[0] = htole16(sc->sc_cnfauthmode);
2012                         len = sizeof(u_int16_t);
2013                         break;
2014                 case WI_RID_NODENAME:
2015                         if (len < sc->sc_nodelen + sizeof(u_int16_t)) {
2016                                 error = ENOSPC;
2017                                 break;
2018                         }
2019                         len = sc->sc_nodelen + sizeof(u_int16_t);
2020                         wreq.wi_val[0] = htole16((sc->sc_nodelen + 1) / 2);
2021                         memcpy(&wreq.wi_val[1], sc->sc_nodename,
2022                             sc->sc_nodelen);
2023                         break;
2024                 default:
2025                         return ieee80211_cfgget(ifp, cmd, data, cr);
2026                 }
2027                 break;
2028         }
2029         if (error)
2030                 return error;
2031         wreq.wi_len = (len + 1) / 2 + 1;
2032         return copyout(&wreq, ifr->ifr_data, (wreq.wi_len + 1) * 2);
2033 }
2034
2035 static int
2036 wi_set_cfg(struct ifnet *ifp, u_long cmd, caddr_t data)
2037 {
2038         struct wi_softc *sc = ifp->if_softc;
2039         struct ieee80211com *ic = &sc->sc_ic;
2040         struct ifreq *ifr = (struct ifreq *)data;
2041         struct wi_req wreq;
2042         struct mbuf *m;
2043         int i, len, error, mif, val;
2044         struct ieee80211_rateset *rs;
2045
2046         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
2047         if (error)
2048                 return error;
2049         len = wreq.wi_len ? (wreq.wi_len - 1) * 2 : 0;
2050         switch (wreq.wi_type) {
2051         case WI_RID_DBM_ADJUST:
2052                 return ENODEV;
2053
2054         case WI_RID_NODENAME:
2055                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2056                     le16toh(wreq.wi_val[0]) > sizeof(sc->sc_nodename)) {
2057                         error = ENOSPC;
2058                         break;
2059                 }
2060                 if (sc->sc_enabled) {
2061                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2062                             len);
2063                         if (error)
2064                                 break;
2065                 }
2066                 sc->sc_nodelen = le16toh(wreq.wi_val[0]) * 2;
2067                 memcpy(sc->sc_nodename, &wreq.wi_val[1], sc->sc_nodelen);
2068                 break;
2069
2070         case WI_RID_MICROWAVE_OVEN:
2071         case WI_RID_ROAMING_MODE:
2072         case WI_RID_SYSTEM_SCALE:
2073         case WI_RID_FRAG_THRESH:
2074                 if (wreq.wi_type == WI_RID_MICROWAVE_OVEN &&
2075                     (sc->sc_flags & WI_FLAGS_HAS_MOR) == 0)
2076                         break;
2077                 if (wreq.wi_type == WI_RID_ROAMING_MODE &&
2078                     (sc->sc_flags & WI_FLAGS_HAS_ROAMING) == 0)
2079                         break;
2080                 if (wreq.wi_type == WI_RID_SYSTEM_SCALE &&
2081                     (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) == 0)
2082                         break;
2083                 if (wreq.wi_type == WI_RID_FRAG_THRESH &&
2084                     (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) == 0)
2085                         break;
2086                 /* FALLTHROUGH */
2087         case WI_RID_RTS_THRESH:
2088         case WI_RID_CNFAUTHMODE:
2089         case WI_RID_MAX_DATALEN:
2090                 if (sc->sc_enabled) {
2091                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2092                             sizeof(u_int16_t));
2093                         if (error)
2094                                 break;
2095                 }
2096                 switch (wreq.wi_type) {
2097                 case WI_RID_FRAG_THRESH:
2098                         ic->ic_fragthreshold = le16toh(wreq.wi_val[0]);
2099                         break;
2100                 case WI_RID_RTS_THRESH:
2101                         ic->ic_rtsthreshold = le16toh(wreq.wi_val[0]);
2102                         break;
2103                 case WI_RID_MICROWAVE_OVEN:
2104                         sc->sc_microwave_oven = le16toh(wreq.wi_val[0]);
2105                         break;
2106                 case WI_RID_ROAMING_MODE:
2107                         sc->sc_roaming_mode = le16toh(wreq.wi_val[0]);
2108                         break;
2109                 case WI_RID_SYSTEM_SCALE:
2110                         sc->sc_system_scale = le16toh(wreq.wi_val[0]);
2111                         break;
2112                 case WI_RID_CNFAUTHMODE:
2113                         sc->sc_cnfauthmode = le16toh(wreq.wi_val[0]);
2114                         break;
2115                 case WI_RID_MAX_DATALEN:
2116                         sc->sc_max_datalen = le16toh(wreq.wi_val[0]);
2117                         break;
2118                 }
2119                 break;
2120
2121         case WI_RID_TX_RATE:
2122                 switch (le16toh(wreq.wi_val[0])) {
2123                 case 3:
2124                         ic->ic_fixed_rate = -1;
2125                         break;
2126                 default:
2127                         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
2128                         for (i = 0; i < rs->rs_nrates; i++) {
2129                                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL)
2130                                     / 2 == le16toh(wreq.wi_val[0]))
2131                                         break;
2132                         }
2133                         if (i == rs->rs_nrates)
2134                                 return EINVAL;
2135                         ic->ic_fixed_rate = i;
2136                 }
2137                 if (sc->sc_enabled)
2138                         error = wi_write_txrate(sc);
2139                 break;
2140
2141         case WI_RID_SCAN_APS:
2142                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2143                         error = wi_scan_ap(sc, 0x3fff, 0x000f);
2144                 break;
2145
2146         case WI_RID_SCAN_REQ:           /* compatibility interface */
2147                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2148                         error = wi_scan_ap(sc, wreq.wi_val[0], wreq.wi_val[1]);
2149                 break;
2150
2151         case WI_RID_MGMT_XMIT:
2152                 if (!sc->sc_enabled) {
2153                         error = ENETDOWN;
2154                         break;
2155                 }
2156                 if (ic->ic_mgtq.ifq_len > 5) {
2157                         error = EAGAIN;
2158                         break;
2159                 }
2160                 /* XXX wi_len looks in u_int8_t, not in u_int16_t */
2161                 m = m_devget((char *)&wreq.wi_val, wreq.wi_len, 0, ifp, NULL);
2162                 if (m == NULL) {
2163                         error = ENOMEM;
2164                         break;
2165                 }
2166                 IF_ENQUEUE(&ic->ic_mgtq, m);
2167                 break;
2168
2169         case WI_RID_MIF:
2170                 mif = wreq.wi_val[0];
2171                 val = wreq.wi_val[1];
2172                 error = wi_cmd(sc, WI_CMD_WRITEMIF, mif, val, 0);
2173                 break;
2174
2175         case WI_RID_PROCFRAME:          /* ignore for compatibility */
2176                 break;
2177
2178         case WI_RID_OWN_SSID:
2179                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2180                     le16toh(wreq.wi_val[0]) > IEEE80211_NWID_LEN) {
2181                         error = ENOSPC;
2182                         break;
2183                 }
2184                 memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
2185                 ic->ic_des_esslen = le16toh(wreq.wi_val[0]) * 2;
2186                 memcpy(ic->ic_des_essid, &wreq.wi_val[1], ic->ic_des_esslen);
2187                 error = ENETRESET;
2188                 break;
2189
2190         default:
2191                 if (sc->sc_enabled) {
2192                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2193                             len);
2194                         if (error)
2195                                 break;
2196                 }
2197                 error = ieee80211_cfgset(ifp, cmd, data);
2198                 break;
2199         }
2200         return error;
2201 }
2202
2203 static int
2204 wi_write_txrate(struct wi_softc *sc)
2205 {
2206         struct ieee80211com *ic = &sc->sc_ic;
2207         int i;
2208         u_int16_t rate;
2209
2210         if (ic->ic_fixed_rate < 0)
2211                 rate = 0;       /* auto */
2212         else
2213                 rate = (ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ic->ic_fixed_rate] &
2214                     IEEE80211_RATE_VAL) / 2;
2215
2216         /* rate: 0, 1, 2, 5, 11 */
2217
2218         switch (sc->sc_firmware_type) {
2219         case WI_LUCENT:
2220                 switch (rate) {
2221                 case 0:                 /* auto == 11mbps auto */
2222                         rate = 3;
2223                         break;
2224                 /* case 1, 2 map to 1, 2*/
2225                 case 5:                 /* 5.5Mbps -> 4 */
2226                         rate = 4;
2227                         break;
2228                 case 11:                /* 11mbps -> 5 */
2229                         rate = 5;
2230                         break;
2231                 default:
2232                         break;
2233                 }
2234                 break;
2235         default:
2236                 /* Choose a bit according to this table.
2237                  *
2238                  * bit | data rate
2239                  * ----+-------------------
2240                  * 0   | 1Mbps
2241                  * 1   | 2Mbps
2242                  * 2   | 5.5Mbps
2243                  * 3   | 11Mbps
2244                  */
2245                 for (i = 8; i > 0; i >>= 1) {
2246                         if (rate >= i)
2247                                 break;
2248                 }
2249                 if (i == 0)
2250                         rate = 0xf;     /* auto */
2251                 else
2252                         rate = i;
2253                 break;
2254         }
2255         return wi_write_val(sc, WI_RID_TX_RATE, rate);
2256 }
2257
2258 static int
2259 wi_write_wep(struct wi_softc *sc)
2260 {
2261         struct ieee80211com *ic = &sc->sc_ic;
2262         int error = 0;
2263         int i, keylen;
2264         u_int16_t val;
2265         struct wi_key wkey[IEEE80211_WEP_NKID];
2266
2267         switch (sc->sc_firmware_type) {
2268         case WI_LUCENT:
2269                 val = (ic->ic_flags & IEEE80211_F_WEPON) ? 1 : 0;
2270                 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
2271                 if (error)
2272                         break;
2273                 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, ic->ic_wep_txkey);
2274                 if (error)
2275                         break;
2276                 memset(wkey, 0, sizeof(wkey));
2277                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2278                         keylen = ic->ic_nw_keys[i].wk_len;
2279                         wkey[i].wi_keylen = htole16(keylen);
2280                         memcpy(wkey[i].wi_keydat, ic->ic_nw_keys[i].wk_key,
2281                             keylen);
2282                 }
2283                 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
2284                     wkey, sizeof(wkey));
2285                 break;
2286
2287         case WI_INTERSIL:
2288         case WI_SYMBOL:
2289                 if (ic->ic_flags & IEEE80211_F_WEPON) {
2290                         /*
2291                          * ONLY HWB3163 EVAL-CARD Firmware version
2292                          * less than 0.8 variant2
2293                          *
2294                          *   If promiscuous mode disable, Prism2 chip
2295                          *  does not work with WEP .
2296                          * It is under investigation for details.
2297                          * (ichiro@netbsd.org)
2298                          */
2299                         if (sc->sc_firmware_type == WI_INTERSIL &&
2300                             sc->sc_sta_firmware_ver < 802 ) {
2301                                 /* firm ver < 0.8 variant 2 */
2302                                 wi_write_val(sc, WI_RID_PROMISC, 1);
2303                         }
2304                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2305                             sc->sc_cnfauthmode);
2306                         val = PRIVACY_INVOKED | EXCLUDE_UNENCRYPTED;
2307                         /*
2308                          * Encryption firmware has a bug for HostAP mode.
2309                          */
2310                         if (sc->sc_firmware_type == WI_INTERSIL &&
2311                             ic->ic_opmode == IEEE80211_M_HOSTAP)
2312                                 val |= HOST_ENCRYPT;
2313                 } else {
2314                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2315                             IEEE80211_AUTH_OPEN);
2316                         val = HOST_ENCRYPT | HOST_DECRYPT;
2317                 }
2318                 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
2319                 if (error)
2320                         break;
2321                 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY,
2322                     ic->ic_wep_txkey);
2323                 if (error)
2324                         break;
2325                 /*
2326                  * It seems that the firmware accept 104bit key only if
2327                  * all the keys have 104bit length.  We get the length of
2328                  * the transmit key and use it for all other keys.
2329                  * Perhaps we should use software WEP for such situation.
2330                  */
2331                 keylen = ic->ic_nw_keys[ic->ic_wep_txkey].wk_len;
2332                 if (keylen > IEEE80211_WEP_KEYLEN)
2333                         keylen = 13;    /* 104bit keys */
2334                 else
2335                         keylen = IEEE80211_WEP_KEYLEN;
2336                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2337                         error = wi_write_rid(sc, WI_RID_P2_CRYPT_KEY0 + i,
2338                             ic->ic_nw_keys[i].wk_key, keylen);
2339                         if (error)
2340                                 break;
2341                 }
2342                 break;
2343         }
2344         return error;
2345 }
2346
2347 static int
2348 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
2349 {
2350         int                     i, s = 0;
2351         static volatile int count  = 0;
2352
2353         if (sc->wi_gone)
2354                 return (ENODEV);
2355
2356         if (count > 0)
2357                 panic("Hey partner, hold on there!");
2358         count++;
2359
2360         /* wait for the busy bit to clear */
2361         for (i = sc->wi_cmd_count; i > 0; i--) {        /* 500ms */
2362                 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
2363                         break;
2364                 DELAY(1*1000);  /* 1ms */
2365         }
2366         if (i == 0) {
2367                 device_printf(sc->sc_dev, "wi_cmd: busy bit won't clear.\n" );
2368                 sc->wi_gone = 1;
2369                 count--;
2370                 return(ETIMEDOUT);
2371         }
2372
2373         CSR_WRITE_2(sc, WI_PARAM0, val0);
2374         CSR_WRITE_2(sc, WI_PARAM1, val1);
2375         CSR_WRITE_2(sc, WI_PARAM2, val2);
2376         CSR_WRITE_2(sc, WI_COMMAND, cmd);
2377
2378         if (cmd == WI_CMD_INI) {
2379                 /* XXX: should sleep here. */
2380                 DELAY(100*1000);                /* 100ms delay for init */
2381         }
2382         for (i = 0; i < WI_TIMEOUT; i++) {
2383                 /*
2384                  * Wait for 'command complete' bit to be
2385                  * set in the event status register.
2386                  */
2387                 s = CSR_READ_2(sc, WI_EVENT_STAT);
2388                 if (s & WI_EV_CMD) {
2389                         /* Ack the event and read result code. */
2390                         s = CSR_READ_2(sc, WI_STATUS);
2391                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
2392                         if (s & WI_STAT_CMD_RESULT) {
2393                                 count--;
2394                                 return(EIO);
2395                         }
2396                         break;
2397                 }
2398                 DELAY(WI_DELAY);
2399         }
2400
2401         count--;
2402         if (i == WI_TIMEOUT) {
2403                 device_printf(sc->sc_dev,
2404                     "timeout in wi_cmd 0x%04x; event status 0x%04x\n", cmd, s);
2405                 if (s == 0xffff)
2406                         sc->wi_gone = 1;
2407                 return(ETIMEDOUT);
2408         }
2409         return (0);
2410 }
2411
2412 static int
2413 wi_seek_bap(struct wi_softc *sc, int id, int off)
2414 {
2415         int i, status;
2416
2417         CSR_WRITE_2(sc, WI_SEL0, id);
2418         CSR_WRITE_2(sc, WI_OFF0, off);
2419
2420         for (i = 0; ; i++) {
2421                 status = CSR_READ_2(sc, WI_OFF0);
2422                 if ((status & WI_OFF_BUSY) == 0)
2423                         break;
2424                 if (i == WI_TIMEOUT) {
2425                         device_printf(sc->sc_dev, "timeout in wi_seek to %x/%x\n",
2426                             id, off);
2427                         sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2428                         if (status == 0xffff)
2429                                 sc->wi_gone = 1;
2430                         return ETIMEDOUT;
2431                 }
2432                 DELAY(1);
2433         }
2434         if (status & WI_OFF_ERR) {
2435                 device_printf(sc->sc_dev, "failed in wi_seek to %x/%x\n", id, off);
2436                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2437                 return EIO;
2438         }
2439         sc->sc_bap_id = id;
2440         sc->sc_bap_off = off;
2441         return 0;
2442 }
2443
2444 static int
2445 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2446 {
2447         u_int16_t *ptr;
2448         int i, error, cnt;
2449
2450         if (buflen == 0)
2451                 return 0;
2452         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2453                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2454                         return error;
2455         }
2456         cnt = (buflen + 1) / 2;
2457         ptr = (u_int16_t *)buf;
2458         for (i = 0; i < cnt; i++)
2459                 *ptr++ = CSR_READ_2(sc, WI_DATA0);
2460         sc->sc_bap_off += cnt * 2;
2461         return 0;
2462 }
2463
2464 static int
2465 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2466 {
2467         u_int16_t *ptr;
2468         int i, error, cnt;
2469
2470         if (buflen == 0)
2471                 return 0;
2472
2473 #ifdef WI_HERMES_AUTOINC_WAR
2474   again:
2475 #endif
2476         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2477                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2478                         return error;
2479         }
2480         cnt = (buflen + 1) / 2;
2481         ptr = (u_int16_t *)buf;
2482         for (i = 0; i < cnt; i++)
2483                 CSR_WRITE_2(sc, WI_DATA0, ptr[i]);
2484         sc->sc_bap_off += cnt * 2;
2485
2486 #ifdef WI_HERMES_AUTOINC_WAR
2487         /*
2488          * According to the comments in the HCF Light code, there is a bug
2489          * in the Hermes (or possibly in certain Hermes firmware revisions)
2490          * where the chip's internal autoincrement counter gets thrown off
2491          * during data writes:  the autoincrement is missed, causing one
2492          * data word to be overwritten and subsequent words to be written to
2493          * the wrong memory locations. The end result is that we could end
2494          * up transmitting bogus frames without realizing it. The workaround
2495          * for this is to write a couple of extra guard words after the end
2496          * of the transfer, then attempt to read then back. If we fail to
2497          * locate the guard words where we expect them, we preform the
2498          * transfer over again.
2499          */
2500         if ((sc->sc_flags & WI_FLAGS_BUG_AUTOINC) && (id & 0xf000) == 0) {
2501                 CSR_WRITE_2(sc, WI_DATA0, 0x1234);
2502                 CSR_WRITE_2(sc, WI_DATA0, 0x5678);
2503                 wi_seek_bap(sc, id, sc->sc_bap_off);
2504                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2505                 if (CSR_READ_2(sc, WI_DATA0) != 0x1234 ||
2506                     CSR_READ_2(sc, WI_DATA0) != 0x5678) {
2507                         device_printf(sc->sc_dev,
2508                                 "detect auto increment bug, try again\n");
2509                         goto again;
2510                 }
2511         }
2512 #endif
2513         return 0;
2514 }
2515
2516 static int
2517 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
2518 {
2519         int error, len;
2520         struct mbuf *m;
2521
2522         for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
2523                 if (m->m_len == 0)
2524                         continue;
2525
2526                 len = min(m->m_len, totlen);
2527
2528                 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
2529                         m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
2530                         return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
2531                             totlen);
2532                 }
2533
2534                 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
2535                         return error;
2536
2537                 off += m->m_len;
2538                 totlen -= len;
2539         }
2540         return 0;
2541 }
2542
2543 static int
2544 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
2545 {
2546         int i;
2547
2548         if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
2549                 device_printf(sc->sc_dev, "failed to allocate %d bytes on NIC\n",
2550                     len);
2551                 return ENOMEM;
2552         }
2553
2554         for (i = 0; i < WI_TIMEOUT; i++) {
2555                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
2556                         break;
2557                 if (i == WI_TIMEOUT) {
2558                         device_printf(sc->sc_dev, "timeout in alloc\n");
2559                         return ETIMEDOUT;
2560                 }
2561                 DELAY(1);
2562         }
2563         *idp = CSR_READ_2(sc, WI_ALLOC_FID);
2564         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
2565         return 0;
2566 }
2567
2568 static int
2569 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
2570 {
2571         int error, len;
2572         u_int16_t ltbuf[2];
2573
2574         /* Tell the NIC to enter record read mode. */
2575         error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
2576         if (error)
2577                 return error;
2578
2579         error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2580         if (error)
2581                 return error;
2582
2583         if (le16toh(ltbuf[1]) != rid) {
2584                 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n",
2585                     rid, le16toh(ltbuf[1]));
2586                 return EIO;
2587         }
2588         len = (le16toh(ltbuf[0]) - 1) * 2;       /* already got rid */
2589         if (*buflenp < len) {
2590                 device_printf(sc->sc_dev, "record buffer is too small, "
2591                     "rid=%x, size=%d, len=%d\n",
2592                     rid, *buflenp, len);
2593                 return ENOSPC;
2594         }
2595         *buflenp = len;
2596         return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
2597 }
2598
2599 static int
2600 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen)
2601 {
2602         int error;
2603         u_int16_t ltbuf[2];
2604
2605         ltbuf[0] = htole16((buflen + 1) / 2 + 1);        /* includes rid */
2606         ltbuf[1] = htole16(rid);
2607
2608         error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2609         if (error)
2610                 return error;
2611         error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
2612         if (error)
2613                 return error;
2614
2615         return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
2616 }
2617
2618 static int
2619 wi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
2620 {
2621         struct ifnet *ifp = &ic->ic_if;
2622         struct wi_softc *sc = ifp->if_softc;
2623         struct ieee80211_node *ni = ic->ic_bss;
2624         int buflen;
2625         u_int16_t val;
2626         struct wi_ssid ssid;
2627         u_int8_t old_bssid[IEEE80211_ADDR_LEN];
2628
2629         DPRINTF(("%s: %s -> %s\n", __func__,
2630                 ieee80211_state_name[ic->ic_state],
2631                 ieee80211_state_name[nstate]));
2632
2633         switch (nstate) {
2634         case IEEE80211_S_INIT:
2635                 ic->ic_flags &= ~IEEE80211_F_SIBSS;
2636                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2637                 return (*sc->sc_newstate)(ic, nstate, arg);
2638
2639         case IEEE80211_S_RUN:
2640                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2641                 buflen = IEEE80211_ADDR_LEN;
2642                 wi_read_rid(sc, WI_RID_CURRENT_BSSID, ni->ni_bssid, &buflen);
2643                 IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid);
2644                 buflen = sizeof(val);
2645                 wi_read_rid(sc, WI_RID_CURRENT_CHAN, &val, &buflen);
2646                 /* XXX validate channel */
2647                 ni->ni_chan = &ic->ic_channels[le16toh(val)];
2648                 sc->sc_tx_th.wt_chan_freq = sc->sc_rx_th.wr_chan_freq =
2649                         htole16(ni->ni_chan->ic_freq);
2650                 sc->sc_tx_th.wt_chan_flags = sc->sc_rx_th.wr_chan_flags =
2651                         htole16(ni->ni_chan->ic_flags);
2652
2653                 if (IEEE80211_ADDR_EQ(old_bssid, ni->ni_bssid))
2654                         sc->sc_false_syns++;
2655                 else
2656                         sc->sc_false_syns = 0;
2657
2658                 if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
2659                         ni->ni_esslen = ic->ic_des_esslen;
2660                         memcpy(ni->ni_essid, ic->ic_des_essid, ni->ni_esslen);
2661                         ni->ni_rates = ic->ic_sup_rates[IEEE80211_MODE_11B];
2662                         ni->ni_intval = ic->ic_lintval;
2663                         ni->ni_capinfo = IEEE80211_CAPINFO_ESS;
2664                         if (ic->ic_flags & IEEE80211_F_WEPON)
2665                                 ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY;
2666                 } else {
2667                         /* XXX check return value */
2668                         buflen = sizeof(ssid);
2669                         wi_read_rid(sc, WI_RID_CURRENT_SSID, &ssid, &buflen);
2670                         ni->ni_esslen = le16toh(ssid.wi_len);
2671                         if (ni->ni_esslen > IEEE80211_NWID_LEN)
2672                                 ni->ni_esslen = IEEE80211_NWID_LEN;     /*XXX*/
2673                         memcpy(ni->ni_essid, ssid.wi_ssid, ni->ni_esslen);
2674                 }
2675                 break;
2676
2677         case IEEE80211_S_SCAN:
2678         case IEEE80211_S_AUTH:
2679         case IEEE80211_S_ASSOC:
2680                 break;
2681         }
2682
2683         ic->ic_state = nstate;          /* NB: skip normal ieee80211 handling */
2684         return 0;
2685 }
2686
2687 static int
2688 wi_scan_ap(struct wi_softc *sc, u_int16_t chanmask, u_int16_t txrate)
2689 {
2690         int error = 0;
2691         u_int16_t val[2];
2692
2693         if (!sc->sc_enabled)
2694                 return ENXIO;
2695         switch (sc->sc_firmware_type) {
2696         case WI_LUCENT:
2697                 (void)wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
2698                 break;
2699         case WI_INTERSIL:
2700                 val[0] = chanmask;      /* channel */
2701                 val[1] = txrate;        /* tx rate */
2702                 error = wi_write_rid(sc, WI_RID_SCAN_REQ, val, sizeof(val));
2703                 break;
2704         case WI_SYMBOL:
2705                 /*
2706                  * XXX only supported on 3.x ?
2707                  */
2708                 val[0] = BSCAN_BCAST | BSCAN_ONETIME;
2709                 error = wi_write_rid(sc, WI_RID_BCAST_SCAN_REQ,
2710                     val, sizeof(val[0]));
2711                 break;
2712         }
2713         if (error == 0) {
2714                 sc->sc_scan_timer = WI_SCAN_WAIT;
2715                 sc->sc_ic.ic_if.if_timer = 1;
2716                 DPRINTF(("wi_scan_ap: start scanning, "
2717                         "chamask 0x%x txrate 0x%x\n", chanmask, txrate));
2718         }
2719         return error;
2720 }
2721
2722 static void
2723 wi_scan_result(struct wi_softc *sc, int fid, int cnt)
2724 {
2725 #define N(a)    (sizeof (a) / sizeof (a[0]))
2726         int i, naps, off, szbuf;
2727         struct wi_scan_header ws_hdr;   /* Prism2 header */
2728         struct wi_scan_data_p2 ws_dat;  /* Prism2 scantable*/
2729         struct wi_apinfo *ap;
2730
2731         off = sizeof(u_int16_t) * 2;
2732         memset(&ws_hdr, 0, sizeof(ws_hdr));
2733         switch (sc->sc_firmware_type) {
2734         case WI_INTERSIL:
2735                 wi_read_bap(sc, fid, off, &ws_hdr, sizeof(ws_hdr));
2736                 off += sizeof(ws_hdr);
2737                 szbuf = sizeof(struct wi_scan_data_p2);
2738                 break;
2739         case WI_SYMBOL:
2740                 szbuf = sizeof(struct wi_scan_data_p2) + 6;
2741                 break;
2742         case WI_LUCENT:
2743                 szbuf = sizeof(struct wi_scan_data);
2744                 break;
2745         default:
2746                 device_printf(sc->sc_dev,
2747                         "wi_scan_result: unknown firmware type %u\n",
2748                         sc->sc_firmware_type);
2749                 naps = 0;
2750                 goto done;
2751         }
2752         naps = (cnt * 2 + 2 - off) / szbuf;
2753         if (naps > N(sc->sc_aps))
2754                 naps = N(sc->sc_aps);
2755         sc->sc_naps = naps;
2756         /* Read Data */
2757         ap = sc->sc_aps;
2758         memset(&ws_dat, 0, sizeof(ws_dat));
2759         for (i = 0; i < naps; i++, ap++) {
2760                 wi_read_bap(sc, fid, off, &ws_dat,
2761                     (sizeof(ws_dat) < szbuf ? sizeof(ws_dat) : szbuf));
2762                 DPRINTF2(("wi_scan_result: #%d: off %d bssid %6D\n", i, off,
2763                     ws_dat.wi_bssid, ":"));
2764                 off += szbuf;
2765                 ap->scanreason = le16toh(ws_hdr.wi_reason);
2766                 memcpy(ap->bssid, ws_dat.wi_bssid, sizeof(ap->bssid));
2767                 ap->channel = le16toh(ws_dat.wi_chid);
2768                 ap->signal  = le16toh(ws_dat.wi_signal);
2769                 ap->noise   = le16toh(ws_dat.wi_noise);
2770                 ap->quality = ap->signal - ap->noise;
2771                 ap->capinfo = le16toh(ws_dat.wi_capinfo);
2772                 ap->interval = le16toh(ws_dat.wi_interval);
2773                 ap->rate    = le16toh(ws_dat.wi_rate);
2774                 ap->namelen = le16toh(ws_dat.wi_namelen);
2775                 if (ap->namelen > sizeof(ap->name))
2776                         ap->namelen = sizeof(ap->name);
2777                 memcpy(ap->name, ws_dat.wi_name, ap->namelen);
2778         }
2779 done:
2780         /* Done scanning */
2781         sc->sc_scan_timer = 0;
2782         DPRINTF(("wi_scan_result: scan complete: ap %d\n", naps));
2783 #undef N
2784 }
2785
2786 static void
2787 wi_dump_pkt(struct wi_frame *wh, struct ieee80211_node *ni, int rssi)
2788 {
2789         ieee80211_dump_pkt((u_int8_t *) &wh->wi_whdr, sizeof(wh->wi_whdr),
2790             ni ? ni->ni_rates.rs_rates[ni->ni_txrate] & IEEE80211_RATE_VAL : -1, rssi);
2791         printf(" status 0x%x rx_tstamp1 %u rx_tstamp0 0x%u rx_silence %u\n",
2792                 le16toh(wh->wi_status), le16toh(wh->wi_rx_tstamp1),
2793                 le16toh(wh->wi_rx_tstamp0), wh->wi_rx_silence);
2794         printf(" rx_signal %u rx_rate %u rx_flow %u\n",
2795                 wh->wi_rx_signal, wh->wi_rx_rate, wh->wi_rx_flow);
2796         printf(" tx_rtry %u tx_rate %u tx_ctl 0x%x dat_len %u\n",
2797                 wh->wi_tx_rtry, wh->wi_tx_rate,
2798                 le16toh(wh->wi_tx_ctl), le16toh(wh->wi_dat_len));
2799         printf(" ehdr dst %6D src %6D type 0x%x\n",
2800                 wh->wi_ehdr.ether_dhost, ":", wh->wi_ehdr.ether_shost, ":",
2801                 wh->wi_ehdr.ether_type);
2802 }
2803
2804 int
2805 wi_alloc(device_t dev, int rid)
2806 {
2807         struct wi_softc *sc = device_get_softc(dev);
2808
2809         if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
2810                 sc->iobase_rid = rid;
2811                 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
2812                     &sc->iobase_rid, 0, ~0, (1 << 6),
2813                     rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
2814                 if (!sc->iobase) {
2815                         device_printf(dev, "No I/O space?!\n");
2816                         return (ENXIO);
2817                 }
2818
2819                 sc->wi_io_addr = rman_get_start(sc->iobase);
2820                 sc->wi_btag = rman_get_bustag(sc->iobase);
2821                 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
2822         } else {
2823                 sc->mem_rid = rid;
2824                 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
2825                     &sc->mem_rid, RF_ACTIVE);
2826
2827                 if (!sc->mem) {
2828                         device_printf(dev, "No Mem space on prism2.5?\n");
2829                         return (ENXIO);
2830                 }
2831
2832                 sc->wi_btag = rman_get_bustag(sc->mem);
2833                 sc->wi_bhandle = rman_get_bushandle(sc->mem);
2834         }
2835
2836
2837         sc->irq_rid = 0;
2838         sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
2839             RF_ACTIVE |
2840             ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
2841
2842         if (!sc->irq) {
2843                 wi_free(dev);
2844                 device_printf(dev, "No irq?!\n");
2845                 return (ENXIO);
2846         }
2847
2848         sc->sc_dev = dev;
2849         sc->sc_unit = device_get_unit(dev);
2850
2851         return (0);
2852 }
2853
2854 void
2855 wi_free(device_t dev)
2856 {
2857         struct wi_softc *sc = device_get_softc(dev);
2858
2859         if (sc->iobase != NULL) {
2860                 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
2861                 sc->iobase = NULL;
2862         }
2863         if (sc->irq != NULL) {
2864                 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
2865                 sc->irq = NULL;
2866         }
2867         if (sc->mem != NULL) {
2868                 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
2869                 sc->mem = NULL;
2870         }
2871
2872         return;
2873 }
2874
2875 static int
2876 wi_get_debug(struct wi_softc *sc, struct wi_req *wreq)
2877 {
2878         int error = 0;
2879
2880         wreq->wi_len = 1;
2881
2882         switch (wreq->wi_type) {
2883         case WI_DEBUG_SLEEP:
2884                 wreq->wi_len++;
2885                 wreq->wi_val[0] = sc->wi_debug.wi_sleep;
2886                 break;
2887         case WI_DEBUG_DELAYSUPP:
2888                 wreq->wi_len++;
2889                 wreq->wi_val[0] = sc->wi_debug.wi_delaysupp;
2890                 break;
2891         case WI_DEBUG_TXSUPP:
2892                 wreq->wi_len++;
2893                 wreq->wi_val[0] = sc->wi_debug.wi_txsupp;
2894                 break;
2895         case WI_DEBUG_MONITOR:
2896                 wreq->wi_len++;
2897                 wreq->wi_val[0] = sc->wi_debug.wi_monitor;
2898                 break;
2899         case WI_DEBUG_LEDTEST:
2900                 wreq->wi_len += 3;
2901                 wreq->wi_val[0] = sc->wi_debug.wi_ledtest;
2902                 wreq->wi_val[1] = sc->wi_debug.wi_ledtest_param0;
2903                 wreq->wi_val[2] = sc->wi_debug.wi_ledtest_param1;
2904                 break;
2905         case WI_DEBUG_CONTTX:
2906                 wreq->wi_len += 2;
2907                 wreq->wi_val[0] = sc->wi_debug.wi_conttx;
2908                 wreq->wi_val[1] = sc->wi_debug.wi_conttx_param0;
2909                 break;
2910         case WI_DEBUG_CONTRX:
2911                 wreq->wi_len++;
2912                 wreq->wi_val[0] = sc->wi_debug.wi_contrx;
2913                 break;
2914         case WI_DEBUG_SIGSTATE:
2915                 wreq->wi_len += 2;
2916                 wreq->wi_val[0] = sc->wi_debug.wi_sigstate;
2917                 wreq->wi_val[1] = sc->wi_debug.wi_sigstate_param0;
2918                 break;
2919         case WI_DEBUG_CONFBITS:
2920                 wreq->wi_len += 2;
2921                 wreq->wi_val[0] = sc->wi_debug.wi_confbits;
2922                 wreq->wi_val[1] = sc->wi_debug.wi_confbits_param0;
2923                 break;
2924         default:
2925                 error = EIO;
2926                 break;
2927         }
2928
2929         return (error);
2930 }
2931
2932 static int
2933 wi_set_debug(struct wi_softc *sc, struct wi_req *wreq)
2934 {
2935         int error = 0;
2936         u_int16_t               cmd, param0 = 0, param1 = 0;
2937
2938         switch (wreq->wi_type) {
2939         case WI_DEBUG_RESET:
2940         case WI_DEBUG_INIT:
2941         case WI_DEBUG_CALENABLE:
2942                 break;
2943         case WI_DEBUG_SLEEP:
2944                 sc->wi_debug.wi_sleep = 1;
2945                 break;
2946         case WI_DEBUG_WAKE:
2947                 sc->wi_debug.wi_sleep = 0;
2948                 break;
2949         case WI_DEBUG_CHAN:
2950                 param0 = wreq->wi_val[0];
2951                 break;
2952         case WI_DEBUG_DELAYSUPP:
2953                 sc->wi_debug.wi_delaysupp = 1;
2954                 break;
2955         case WI_DEBUG_TXSUPP:
2956                 sc->wi_debug.wi_txsupp = 1;
2957                 break;
2958         case WI_DEBUG_MONITOR:
2959                 sc->wi_debug.wi_monitor = 1;
2960                 break;
2961         case WI_DEBUG_LEDTEST:
2962                 param0 = wreq->wi_val[0];
2963                 param1 = wreq->wi_val[1];
2964                 sc->wi_debug.wi_ledtest = 1;
2965                 sc->wi_debug.wi_ledtest_param0 = param0;
2966                 sc->wi_debug.wi_ledtest_param1 = param1;
2967                 break;
2968         case WI_DEBUG_CONTTX:
2969                 param0 = wreq->wi_val[0];
2970                 sc->wi_debug.wi_conttx = 1;
2971                 sc->wi_debug.wi_conttx_param0 = param0;
2972                 break;
2973         case WI_DEBUG_STOPTEST:
2974                 sc->wi_debug.wi_delaysupp = 0;
2975                 sc->wi_debug.wi_txsupp = 0;
2976                 sc->wi_debug.wi_monitor = 0;
2977                 sc->wi_debug.wi_ledtest = 0;
2978                 sc->wi_debug.wi_ledtest_param0 = 0;
2979                 sc->wi_debug.wi_ledtest_param1 = 0;
2980                 sc->wi_debug.wi_conttx = 0;
2981                 sc->wi_debug.wi_conttx_param0 = 0;
2982                 sc->wi_debug.wi_contrx = 0;
2983                 sc->wi_debug.wi_sigstate = 0;
2984                 sc->wi_debug.wi_sigstate_param0 = 0;
2985                 break;
2986         case WI_DEBUG_CONTRX:
2987                 sc->wi_debug.wi_contrx = 1;
2988                 break;
2989         case WI_DEBUG_SIGSTATE:
2990                 param0 = wreq->wi_val[0];
2991                 sc->wi_debug.wi_sigstate = 1;
2992                 sc->wi_debug.wi_sigstate_param0 = param0;
2993                 break;
2994         case WI_DEBUG_CONFBITS:
2995                 param0 = wreq->wi_val[0];
2996                 param1 = wreq->wi_val[1];
2997                 sc->wi_debug.wi_confbits = param0;
2998                 sc->wi_debug.wi_confbits_param0 = param1;
2999                 break;
3000         default:
3001                 error = EIO;
3002                 break;
3003         }
3004
3005         if (error)
3006                 return (error);
3007
3008         cmd = WI_CMD_DEBUG | (wreq->wi_type << 8);
3009         error = wi_cmd(sc, cmd, param0, param1, 0);
3010
3011         return (error);
3012 }
3013
3014 /*
3015  * Special routines to download firmware for Symbol CF card.
3016  * XXX: This should be modified generic into any PRISM-2 based card.
3017  */
3018
3019 #define WI_SBCF_PDIADDR         0x3100
3020
3021 /* unaligned load little endian */
3022 #define GETLE32(p)      ((p)[0] | ((p)[1]<<8) | ((p)[2]<<16) | ((p)[3]<<24))
3023 #define GETLE16(p)      ((p)[0] | ((p)[1]<<8))
3024
3025 int
3026 wi_symbol_load_firm(struct wi_softc *sc, const void *primsym, int primlen,
3027     const void *secsym, int seclen)
3028 {
3029         uint8_t ebuf[256];
3030         int i;
3031
3032         /* load primary code and run it */
3033         wi_symbol_set_hcr(sc, WI_HCR_EEHOLD);
3034         if (wi_symbol_write_firm(sc, primsym, primlen, NULL, 0))
3035                 return EIO;
3036         wi_symbol_set_hcr(sc, WI_HCR_RUN);
3037         for (i = 0; ; i++) {
3038                 if (i == 10)
3039                         return ETIMEDOUT;
3040                 tsleep(sc, 0, "wiinit", 1);
3041                 if (CSR_READ_2(sc, WI_CNTL) == WI_CNTL_AUX_ENA_STAT)
3042                         break;
3043                 /* write the magic key value to unlock aux port */
3044                 CSR_WRITE_2(sc, WI_PARAM0, WI_AUX_KEY0);
3045                 CSR_WRITE_2(sc, WI_PARAM1, WI_AUX_KEY1);
3046                 CSR_WRITE_2(sc, WI_PARAM2, WI_AUX_KEY2);
3047                 CSR_WRITE_2(sc, WI_CNTL, WI_CNTL_AUX_ENA_CNTL);
3048         }
3049
3050         /* issue read EEPROM command: XXX copied from wi_cmd() */
3051         CSR_WRITE_2(sc, WI_PARAM0, 0);
3052         CSR_WRITE_2(sc, WI_PARAM1, 0);
3053         CSR_WRITE_2(sc, WI_PARAM2, 0);
3054         CSR_WRITE_2(sc, WI_COMMAND, WI_CMD_READEE);
3055         for (i = 0; i < WI_TIMEOUT; i++) {
3056                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_CMD)
3057                         break;
3058                 DELAY(1);
3059         }
3060         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
3061
3062         CSR_WRITE_2(sc, WI_AUX_PAGE, WI_SBCF_PDIADDR / WI_AUX_PGSZ);
3063         CSR_WRITE_2(sc, WI_AUX_OFFSET, WI_SBCF_PDIADDR % WI_AUX_PGSZ);
3064         CSR_READ_MULTI_STREAM_2(sc, WI_AUX_DATA,
3065             (uint16_t *)ebuf, sizeof(ebuf) / 2);
3066         if (GETLE16(ebuf) > sizeof(ebuf))
3067                 return EIO;
3068         if (wi_symbol_write_firm(sc, secsym, seclen, ebuf + 4, GETLE16(ebuf)))
3069                 return EIO;
3070         return 0;
3071 }
3072
3073 static int
3074 wi_symbol_write_firm(struct wi_softc *sc, const void *buf, int buflen,
3075     const void *ebuf, int ebuflen)
3076 {
3077         const uint8_t *p, *ep, *q, *eq;
3078         char *tp;
3079         uint32_t addr, id, eid;
3080         int i, len, elen, nblk, pdrlen;
3081
3082         /*
3083          * Parse the header of the firmware image.
3084          */
3085         p = buf;
3086         ep = p + buflen;
3087         while (p < ep && *p++ != ' ');  /* FILE: */
3088         while (p < ep && *p++ != ' ');  /* filename */
3089         while (p < ep && *p++ != ' ');  /* type of the firmware */
3090         nblk = strtoul(p, &tp, 10);
3091         p = tp;
3092         pdrlen = strtoul(p + 1, &tp, 10);
3093         p = tp;
3094         while (p < ep && *p++ != 0x1a); /* skip rest of header */
3095
3096         /*
3097          * Block records: address[4], length[2], data[length];
3098          */
3099         for (i = 0; i < nblk; i++) {
3100                 addr = GETLE32(p);      p += 4;
3101                 len  = GETLE16(p);      p += 2;
3102                 CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3103                 CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3104                 CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3105                     (const uint16_t *)p, len / 2);
3106                 p += len;
3107         }
3108
3109         /*
3110          * PDR: id[4], address[4], length[4];
3111          */
3112         for (i = 0; i < pdrlen; ) {
3113                 id   = GETLE32(p);      p += 4; i += 4;
3114                 addr = GETLE32(p);      p += 4; i += 4;
3115                 len  = GETLE32(p);      p += 4; i += 4;
3116                 /* replace PDR entry with the values from EEPROM, if any */
3117                 for (q = ebuf, eq = q + ebuflen; q < eq; q += elen * 2) {
3118                         elen = GETLE16(q);      q += 2;
3119                         eid  = GETLE16(q);      q += 2;
3120                         elen--;         /* elen includes eid */
3121                         if (eid == 0)
3122                                 break;
3123                         if (eid != id)
3124                                 continue;
3125                         CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3126                         CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3127                         CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3128                             (const uint16_t *)q, len / 2);
3129                         break;
3130                 }
3131         }
3132         return 0;
3133 }
3134
3135 static int
3136 wi_symbol_set_hcr(struct wi_softc *sc, int mode)
3137 {
3138         uint16_t hcr;
3139
3140         CSR_WRITE_2(sc, WI_COR, WI_COR_RESET);
3141         tsleep(sc, 0, "wiinit", 1);
3142         hcr = CSR_READ_2(sc, WI_HCR);
3143         hcr = (hcr & WI_HCR_4WIRE) | (mode & ~WI_HCR_4WIRE);
3144         CSR_WRITE_2(sc, WI_HCR, hcr);
3145         tsleep(sc, 0, "wiinit", 1);
3146         CSR_WRITE_2(sc, WI_COR, WI_COR_IOMODE);
3147         tsleep(sc, 0, "wiinit", 1);
3148         return 0;
3149 }