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 1.17 2005/01/14 02:35:09 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 #ifdef WI_RAWBPF
 469         bpfattach2(ifp, DLT_IEEE802_11_RADIO,
 470                 sizeof(struct ieee80211_frame) + sizeof(sc->sc_tx_th),
 471                 &sc->sc_drvbpf);
 472         /*
 473          * Initialize constant fields.
 474          * XXX make header lengths a multiple of 32-bits so subsequent
 475          *     headers are properly aligned; this is a kludge to keep
 476          *     certain applications happy.
 477          *
 478          * NB: the channel is setup each time we transition to the
 479          *     RUN state to avoid filling it in for each frame.
 480          */
 481         sc->sc_tx_th_len = roundup(sizeof(sc->sc_tx_th), sizeof(u_int32_t));
 482         sc->sc_tx_th.wt_ihdr.it_len = htole16(sc->sc_tx_th_len);
 483         sc->sc_tx_th.wt_ihdr.it_present = htole32(WI_TX_RADIOTAP_PRESENT);
 484
 485         sc->sc_rx_th_len = roundup(sizeof(sc->sc_rx_th), sizeof(u_int32_t));
 486         sc->sc_rx_th.wr_ihdr.it_len = htole16(sc->sc_rx_th_len);
 487         sc->sc_rx_th.wr_ihdr.it_present = htole32(WI_RX_RADIOTAP_PRESENT);
 488 #endif
 489         return (0);
 490 }
 491
 492 int
 493 wi_detach(device_t dev)
 494 {
 495         struct wi_softc *sc = device_get_softc(dev);
 496         struct ifnet *ifp = &sc->sc_ic.ic_if;
 497         WI_LOCK_DECL();
 498
 499         WI_LOCK(sc);
 500
 501         /* check if device was removed */
 502         sc->wi_gone |= !bus_child_present(dev);
 503
 504         wi_stop(ifp, 0);
 505
 506         ieee80211_ifdetach(ifp);
 507         WI_UNLOCK(sc);
 508         bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
 509         wi_free(dev);
 510         return (0);
 511 }
 512
 513 void
 514 wi_shutdown(device_t dev)
 515 {
 516         struct wi_softc *sc = device_get_softc(dev);
 517
 518         wi_stop(&sc->sc_if, 1);
 519 }
 520
 521 #ifdef DEVICE_POLLING
 522 static void
 523 wi_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
 524 {
 525         struct wi_softc *sc = ifp->if_softc;
 526         uint16_t status;
 527
 528         if ((ifp->if_capenable & IFCAP_POLLING) == 0) {
 529                 ether_poll_deregister(ifp);
 530                 cmd = POLL_DEREGISTER;
 531         }
 532         if (cmd == POLL_DEREGISTER) {
 533                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 534                 return;
 535         }
 536
 537         status = CSR_READ_2(sc, WI_EVENT_STAT);
 538
 539         if (status & WI_EV_RX)
 540                 wi_rx_intr(sc);
 541         if (status & WI_EV_ALLOC)
 542                 wi_tx_intr(sc);
 543         if (status & WI_EV_INFO)
 544                 wi_info_intr(sc);
 545
 546         if (cmd == POLL_AND_CHECK_STATUS) {
 547                 if (status & WI_EV_INFO)
 548                         wi_info_intr(sc);
 549         }
 550
 551         if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 552             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 &&
 553             IF_QLEN(&ifp->if_snd) != NULL)
 554                 wi_start(ifp);
 555 }
 556 #endif /* DEVICE_POLLING */
 557
 558 void
 559 wi_intr(void *arg)
 560 {
 561         struct wi_softc *sc = arg;
 562         struct ifnet *ifp = &sc->sc_ic.ic_if;
 563         u_int16_t status;
 564         WI_LOCK_DECL();
 565
 566 #ifdef DEVICE_POLLING
 567         if (ifp->if_flags & IFF_POLLING)
 568                 return;
 569         if ((ifp->if_capenable & IFCAP_POLLING) &&
 570             (ether_poll_register(wi_poll, ifp))) {
 571                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 572                 wi_poll(ifp, 0, 1);
 573                 return;
 574         }
 575 #endif DEVICE_POLLING
 576
 577         if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) {
 578                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 579                 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
 580                 return;
 581         }
 582
 583         WI_LOCK(sc);
 584
 585         /* Disable interrupts. */
 586         CSR_WRITE_2(sc, WI_INT_EN, 0);
 587
 588         status = CSR_READ_2(sc, WI_EVENT_STAT);
 589         if (status & WI_EV_RX)
 590                 wi_rx_intr(sc);
 591         if (status & WI_EV_ALLOC)
 592                 wi_tx_intr(sc);
 593         if (status & WI_EV_TX_EXC)
 594                 wi_tx_ex_intr(sc);
 595         if (status & WI_EV_INFO)
 596                 wi_info_intr(sc);
 597         if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 598             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 &&
 599             IF_QLEN(&ifp->if_snd) != 0)
 600                 wi_start(ifp);
 601
 602         /* Re-enable interrupts. */
 603         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 604
 605         WI_UNLOCK(sc);
 606
 607         return;
 608 }
 609
 610 void
 611 wi_init(void *arg)
 612 {
 613         struct wi_softc *sc = arg;
 614         struct ifnet *ifp = &sc->sc_if;
 615         struct ieee80211com *ic = &sc->sc_ic;
 616         struct wi_joinreq join;
 617         int i;
 618         int error = 0, wasenabled;
 619         struct ifaddr *ifa;
 620         struct sockaddr_dl *sdl;
 621         WI_LOCK_DECL();
 622
 623         WI_LOCK(sc);
 624
 625         if (sc->wi_gone) {
 626                 WI_UNLOCK(sc);
 627                 return;
 628         }
 629
 630         if ((wasenabled = sc->sc_enabled))
 631                 wi_stop(ifp, 1);
 632         wi_reset(sc);
 633
 634         /* common 802.11 configuration */
 635         ic->ic_flags &= ~IEEE80211_F_IBSSON;
 636         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
 637         switch (ic->ic_opmode) {
 638         case IEEE80211_M_STA:
 639                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_BSS);
 640                 break;
 641         case IEEE80211_M_IBSS:
 642                 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_ibss_port);
 643                 ic->ic_flags |= IEEE80211_F_IBSSON;
 644                 break;
 645         case IEEE80211_M_AHDEMO:
 646                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 647                 break;
 648         case IEEE80211_M_HOSTAP:
 649                 /*
 650                  * For PRISM cards, override the empty SSID, because in
 651                  * HostAP mode the controller will lock up otherwise.
 652                  */
 653                 if (sc->sc_firmware_type == WI_INTERSIL &&
 654                     ic->ic_des_esslen == 0) {
 655                         ic->ic_des_essid[0] = ' ';
 656                         ic->ic_des_esslen = 1;
 657                 }
 658                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_HOSTAP);
 659                 break;
 660         case IEEE80211_M_MONITOR:
 661                 if (sc->sc_firmware_type == WI_LUCENT)
 662                         wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 663                 wi_cmd(sc, WI_CMD_DEBUG | (WI_TEST_MONITOR << 8), 0, 0, 0);
 664                 break;
 665         }
 666
 667         /* Intersil interprets this RID as joining ESS even in IBSS mode */
 668         if (sc->sc_firmware_type == WI_LUCENT &&
 669             (ic->ic_flags & IEEE80211_F_IBSSON) && ic->ic_des_esslen > 0)
 670                 wi_write_val(sc, WI_RID_CREATE_IBSS, 1);
 671         else
 672                 wi_write_val(sc, WI_RID_CREATE_IBSS, 0);
 673         wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
 674         wi_write_ssid(sc, WI_RID_DESIRED_SSID, ic->ic_des_essid,
 675             ic->ic_des_esslen);
 676         wi_write_val(sc, WI_RID_OWN_CHNL,
 677                 ieee80211_chan2ieee(ic, ic->ic_ibss_chan));
 678         wi_write_ssid(sc, WI_RID_OWN_SSID, ic->ic_des_essid, ic->ic_des_esslen);
 679
 680         ifa = ifaddr_byindex(ifp->if_index);
 681         sdl = (struct sockaddr_dl *) ifa->ifa_addr;
 682         IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(sdl));
 683         wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, IEEE80211_ADDR_LEN);
 684
 685         wi_write_val(sc, WI_RID_PM_ENABLED,
 686             (ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0);
 687
 688         /* not yet common 802.11 configuration */
 689         wi_write_val(sc, WI_RID_MAX_DATALEN, sc->sc_max_datalen);
 690         wi_write_val(sc, WI_RID_RTS_THRESH, ic->ic_rtsthreshold);
 691         if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
 692                 wi_write_val(sc, WI_RID_FRAG_THRESH, ic->ic_fragthreshold);
 693
 694         /* driver specific 802.11 configuration */
 695         if (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)
 696                 wi_write_val(sc, WI_RID_SYSTEM_SCALE, sc->sc_system_scale);
 697         if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
 698                 wi_write_val(sc, WI_RID_ROAMING_MODE, sc->sc_roaming_mode);
 699         if (sc->sc_flags & WI_FLAGS_HAS_MOR)
 700                 wi_write_val(sc, WI_RID_MICROWAVE_OVEN, sc->sc_microwave_oven);
 701         wi_write_txrate(sc);
 702         wi_write_ssid(sc, WI_RID_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 703
 704         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
 705             sc->sc_firmware_type == WI_INTERSIL) {
 706                 wi_write_val(sc, WI_RID_OWN_BEACON_INT, ic->ic_lintval);
 707                 wi_write_val(sc, WI_RID_BASIC_RATE, 0x03);   /* 1, 2 */
 708                 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0x0f); /* 1, 2, 5.5, 11 */
 709                 wi_write_val(sc, WI_RID_DTIM_PERIOD, 1);
 710         }
 711
 712         /*
 713          * Initialize promisc mode.
 714          *      Being in the Host-AP mode causes a great
 715          *      deal of pain if primisc mode is set.
 716          *      Therefore we avoid confusing the firmware
 717          *      and always reset promisc mode in Host-AP
 718          *      mode.  Host-AP sees all the packets anyway.
 719          */
 720         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
 721             (ifp->if_flags & IFF_PROMISC) != 0) {
 722                 wi_write_val(sc, WI_RID_PROMISC, 1);
 723         } else {
 724                 wi_write_val(sc, WI_RID_PROMISC, 0);
 725         }
 726
 727         /* Configure WEP. */
 728         if (ic->ic_caps & IEEE80211_C_WEP)
 729                 wi_write_wep(sc);
 730
 731         /* Set multicast filter. */
 732         wi_write_multi(sc);
 733
 734         /* Allocate fids for the card */
 735         if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) {
 736                 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
 737                 if (sc->sc_firmware_type == WI_SYMBOL)
 738                         sc->sc_buflen = 1585;   /* XXX */
 739                 for (i = 0; i < sc->sc_ntxbuf; i++) {
 740                         error = wi_alloc_fid(sc, sc->sc_buflen,
 741                             &sc->sc_txd[i].d_fid);
 742                         if (error) {
 743                                 device_printf(sc->sc_dev,
 744                                     "tx buffer allocation failed (error %u)\n",
 745                                     error);
 746                                 goto out;
 747                         }
 748                         sc->sc_txd[i].d_len = 0;
 749                 }
 750         }
 751         sc->sc_txcur = sc->sc_txnext = 0;
 752
 753         /* Enable desired port */
 754         wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
 755
 756         sc->sc_enabled = 1;
 757         ifp->if_flags |= IFF_RUNNING;
 758         ifp->if_flags &= ~IFF_OACTIVE;
 759         if (ic->ic_opmode == IEEE80211_M_AHDEMO ||
 760             ic->ic_opmode == IEEE80211_M_MONITOR ||
 761             ic->ic_opmode == IEEE80211_M_HOSTAP)
 762                 ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
 763
 764         /* Enable interrupts if not polling */
 765 #ifdef DEVICE_POLLING
 766         if ((ifp->if_flags & IFF_POLLING) == 0)
 767 #endif
 768                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 769
 770         if (!wasenabled &&
 771             ic->ic_opmode == IEEE80211_M_HOSTAP &&
 772             sc->sc_firmware_type == WI_INTERSIL) {
 773                 /* XXX: some card need to be re-enabled for hostap */
 774                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
 775                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
 776         }
 777
 778         if (ic->ic_opmode == IEEE80211_M_STA &&
 779             ((ic->ic_flags & IEEE80211_F_DESBSSID) ||
 780             ic->ic_des_chan != IEEE80211_CHAN_ANYC)) {
 781                 memset(&join, 0, sizeof(join));
 782                 if (ic->ic_flags & IEEE80211_F_DESBSSID)
 783                         IEEE80211_ADDR_COPY(&join.wi_bssid, ic->ic_des_bssid);
 784                 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC)
 785                         join.wi_chan = htole16(
 786                                 ieee80211_chan2ieee(ic, ic->ic_des_chan));
 787                 /* Lucent firmware does not support the JOIN RID. */
 788                 if (sc->sc_firmware_type != WI_LUCENT)
 789                         wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
 790         }
 791
 792         WI_UNLOCK(sc);
 793         return;
 794 out:
 795         if (error) {
 796                 if_printf(ifp, "interface not running\n");
 797                 wi_stop(ifp, 1);
 798         }
 799         WI_UNLOCK(sc);
 800         DPRINTF(("wi_init: return %d\n", error));
 801         return;
 802 }
 803
 804 void
 805 wi_stop(struct ifnet *ifp, int disable)
 806 {
 807         struct ieee80211com *ic = (struct ieee80211com *) ifp;
 808         struct wi_softc *sc = ifp->if_softc;
 809         WI_LOCK_DECL();
 810
 811         WI_LOCK(sc);
 812
 813         DELAY(100000);
 814
 815         ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
 816         if (sc->sc_enabled && !sc->wi_gone) {
 817                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 818                 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
 819                 if (disable) {
 820 #ifdef __NetBSD__
 821                         if (sc->sc_disable)
 822                                 (*sc->sc_disable)(sc);
 823 #endif
 824                         sc->sc_enabled = 0;
 825                 }
 826         } else if (sc->wi_gone && disable)      /* gone --> not enabled */
 827             sc->sc_enabled = 0;
 828
 829         sc->sc_tx_timer = 0;
 830         sc->sc_scan_timer = 0;
 831         sc->sc_syn_timer = 0;
 832         sc->sc_false_syns = 0;
 833         sc->sc_naps = 0;
 834         ifp->if_flags &= ~(IFF_OACTIVE | IFF_RUNNING);
 835 #ifdef DEVICE_POLLING
 836         ether_poll_deregister(ifp);
 837 #endif
 838         ifp->if_timer = 0;
 839
 840         WI_UNLOCK(sc);
 841 }
 842
 843 static void
 844 wi_start(struct ifnet *ifp)
 845 {
 846         struct wi_softc *sc = ifp->if_softc;
 847         struct ieee80211com *ic = &sc->sc_ic;
 848         struct ieee80211_node *ni;
 849         struct ieee80211_frame *wh;
 850         struct mbuf *m0;
 851         struct wi_frame frmhdr;
 852         int cur, fid, off, error;
 853         WI_LOCK_DECL();
 854
 855         WI_LOCK(sc);
 856
 857         if (sc->wi_gone) {
 858                 WI_UNLOCK(sc);
 859                 return;
 860         }
 861         if (sc->sc_flags & WI_FLAGS_OUTRANGE) {
 862                 WI_UNLOCK(sc);
 863                 return;
 864         }
 865
 866         memset(&frmhdr, 0, sizeof(frmhdr));
 867         cur = sc->sc_txnext;
 868         for (;;) {
 869                 IF_POLL(&ic->ic_mgtq, m0);
 870                 if (m0 != NULL) {
 871                         if (sc->sc_txd[cur].d_len != 0) {
 872                                 ifp->if_flags |= IFF_OACTIVE;
 873                                 break;
 874                         }
 875                         IF_DEQUEUE(&ic->ic_mgtq, m0);
 876                         /*
 877                          * Hack!  The referenced node pointer is in the
 878                          * rcvif field of the packet header.  This is
 879                          * placed there by ieee80211_mgmt_output because
 880                          * we need to hold the reference with the frame
 881                          * and there's no other way (other than packet
 882                          * tags which we consider too expensive to use)
 883                          * to pass it along.
 884                          */
 885                         ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
 886                         m0->m_pkthdr.rcvif = NULL;
 887
 888                         m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
 889                             (caddr_t)&frmhdr.wi_ehdr);
 890                         frmhdr.wi_ehdr.ether_type = 0;
 891                         wh = mtod(m0, struct ieee80211_frame *);
 892                 } else {
 893                         if (ic->ic_state != IEEE80211_S_RUN)
 894                                 break;
 895                         IFQ_POLL(&ifp->if_snd, m0);
 896                         if (m0 == NULL)
 897                                 break;
 898                         if (sc->sc_txd[cur].d_len != 0) {
 899                                 ifp->if_flags |= IFF_OACTIVE;
 900                                 break;
 901                         }
 902                         IFQ_DEQUEUE(&ifp->if_snd, m0);
 903                         ifp->if_opackets++;
 904                         m_copydata(m0, 0, ETHER_HDR_LEN,
 905                             (caddr_t)&frmhdr.wi_ehdr);
 906                         BPF_MTAP(ifp, m0);
 907
 908                         m0 = ieee80211_encap(ifp, m0, &ni);
 909                         if (m0 == NULL) {
 910                                 ifp->if_oerrors++;
 911                                 continue;
 912                         }
 913                         wh = mtod(m0, struct ieee80211_frame *);
 914                         if (ic->ic_flags & IEEE80211_F_WEPON)
 915                                 wh->i_fc[1] |= IEEE80211_FC1_WEP;
 916
 917                 }
 918 #ifdef IEEE80211_RAWBPF
 919                 if (ic->ic_rawbpf)
 920                         bpf_mtap(ic->ic_rawbpf, m0);
 921 #endif
 922                 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 923                 if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
 924                     (wh->i_fc[1] & IEEE80211_FC1_WEP)) {
 925                         if ((m0 = ieee80211_wep_crypt(ifp, m0, 1)) == NULL) {
 926                                 ifp->if_oerrors++;
 927                                 if (ni && ni != ic->ic_bss)
 928                                         ieee80211_free_node(ic, ni);
 929                                 continue;
 930                         }
 931                         frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 932                 }
 933 #ifdef WI_RAWBPF
 934                 if (sc->sc_drvbpf) {
 935                         sc->sc_tx_th.wt_rate =
 936                                 ni->ni_rates.rs_rates[ni->ni_txrate];
 937                         bpf_mtap2(sc->sc_drvbpf,
 938                                 &sc->sc_tx_th, sc->sc_tx_th_len, m0);
 939                 }
 940 #endif
 941                 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 942                     (caddr_t)&frmhdr.wi_whdr);
 943                 m_adj(m0, sizeof(struct ieee80211_frame));
 944                 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 945                 if (IFF_DUMPPKTS(ifp))
 946                         wi_dump_pkt(&frmhdr, NULL, -1);
 947                 fid = sc->sc_txd[cur].d_fid;
 948                 off = sizeof(frmhdr);
 949                 error = wi_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0
 950                      || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
 951                 m_freem(m0);
 952                 if (ni && ni != ic->ic_bss)
 953                         ieee80211_free_node(ic, ni);
 954                 if (error) {
 955                         ifp->if_oerrors++;
 956                         continue;
 957                 }
 958                 sc->sc_txd[cur].d_len = off;
 959                 if (sc->sc_txcur == cur) {
 960                         if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
 961                                 if_printf(ifp, "xmit failed\n");
 962                                 sc->sc_txd[cur].d_len = 0;
 963                                 continue;
 964                         }
 965                         sc->sc_tx_timer = 5;
 966                         ifp->if_timer = 1;
 967                 }
 968                 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 969         }
 970
 971         WI_UNLOCK(sc);
 972 }
 973
 974 static int
 975 wi_reset(struct wi_softc *sc)
 976 {
 977         struct ieee80211com *ic = &sc->sc_ic;
 978         struct ifnet *ifp = &ic->ic_if;
 979 #define WI_INIT_TRIES 3
 980         int i;
 981         int error = 0;
 982         int tries;
 983
 984         /* Symbol firmware cannot be initialized more than once */
 985         if (sc->sc_firmware_type == WI_SYMBOL && sc->sc_reset)
 986                 return (0);
 987         if (sc->sc_firmware_type == WI_SYMBOL)
 988                 tries = 1;
 989         else
 990                 tries = WI_INIT_TRIES;
 991
 992         for (i = 0; i < tries; i++) {
 993                 if ((error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0)) == 0)
 994                         break;
 995                 DELAY(WI_DELAY * 1000);
 996         }
 997         sc->sc_reset = 1;
 998
 999         if (i == tries) {
1000                 if_printf(ifp, "init failed\n");
1001                 return (error);
1002         }
1003
1004         CSR_WRITE_2(sc, WI_INT_EN, 0);
1005         CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
1006
1007         /* Calibrate timer. */
1008         wi_write_val(sc, WI_RID_TICK_TIME, 8);
1009
1010         return (0);
1011 #undef WI_INIT_TRIES
1012 }
1013
1014 static void
1015 wi_watchdog(struct ifnet *ifp)
1016 {
1017         struct wi_softc *sc = ifp->if_softc;
1018
1019         ifp->if_timer = 0;
1020         if (!sc->sc_enabled)
1021                 return;
1022
1023         if (sc->sc_tx_timer) {
1024                 if (--sc->sc_tx_timer == 0) {
1025                         if_printf(ifp, "device timeout\n");
1026                         ifp->if_oerrors++;
1027                         wi_init(ifp->if_softc);
1028                         return;
1029                 }
1030                 ifp->if_timer = 1;
1031         }
1032
1033         if (sc->sc_scan_timer) {
1034                 if (--sc->sc_scan_timer <= WI_SCAN_WAIT - WI_SCAN_INQWAIT &&
1035                     sc->sc_firmware_type == WI_INTERSIL) {
1036                         DPRINTF(("wi_watchdog: inquire scan\n"));
1037                         wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
1038                 }
1039                 if (sc->sc_scan_timer)
1040                         ifp->if_timer = 1;
1041         }
1042
1043         if (sc->sc_syn_timer) {
1044                 if (--sc->sc_syn_timer == 0) {
1045                         struct ieee80211com *ic = (struct ieee80211com *) ifp;
1046                         DPRINTF2(("wi_watchdog: %d false syns\n",
1047                             sc->sc_false_syns));
1048                         sc->sc_false_syns = 0;
1049                         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1050                         sc->sc_syn_timer = 5;
1051                 }
1052                 ifp->if_timer = 1;
1053         }
1054
1055         /* TODO: rate control */
1056         ieee80211_watchdog(ifp);
1057 }
1058
1059 static int
1060 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1061 {
1062         struct wi_softc *sc = ifp->if_softc;
1063         struct ieee80211com *ic = &sc->sc_ic;
1064         struct ifreq *ifr = (struct ifreq *)data;
1065         struct ieee80211req *ireq;
1066         u_int8_t nodename[IEEE80211_NWID_LEN];
1067         int error = 0;
1068         struct wi_req wreq;
1069         WI_LOCK_DECL();
1070
1071         WI_LOCK(sc);
1072
1073         if (sc->wi_gone) {
1074                 error = ENODEV;
1075                 goto out;
1076         }
1077
1078         switch (cmd) {
1079         case SIOCSIFFLAGS:
1080                 /*
1081                  * Can't do promisc and hostap at the same time.  If all that's
1082                  * changing is the promisc flag, try to short-circuit a call to
1083                  * wi_init() by just setting PROMISC in the hardware.
1084                  */
1085                 if (ifp->if_flags & IFF_UP) {
1086                         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
1087                             ifp->if_flags & IFF_RUNNING) {
1088                                 if (ifp->if_flags & IFF_PROMISC &&
1089                                     !(sc->sc_if_flags & IFF_PROMISC)) {
1090                                         wi_write_val(sc, WI_RID_PROMISC, 1);
1091                                 } else if (!(ifp->if_flags & IFF_PROMISC) &&
1092                                     sc->sc_if_flags & IFF_PROMISC) {
1093                                         wi_write_val(sc, WI_RID_PROMISC, 0);
1094                                 } else {
1095                                         wi_init(sc);
1096                                 }
1097                         } else {
1098                                 wi_init(sc);
1099                         }
1100                 } else {
1101                         if (ifp->if_flags & IFF_RUNNING) {
1102                                 wi_stop(ifp, 1);
1103                         }
1104                         sc->wi_gone = 0;
1105                 }
1106                 sc->sc_if_flags = ifp->if_flags;
1107                 error = 0;
1108                 break;
1109         case SIOCADDMULTI:
1110         case SIOCDELMULTI:
1111                 error = wi_write_multi(sc);
1112                 break;
1113         case SIOCGIFGENERIC:
1114                 error = wi_get_cfg(ifp, cmd, data, cr);
1115                 break;
1116         case SIOCSIFGENERIC:
1117                 error = suser_cred(cr, NULL_CRED_OKAY);
1118                 if (error)
1119                         break;
1120                 error = wi_set_cfg(ifp, cmd, data);
1121                 break;
1122         case SIOCGPRISM2DEBUG:
1123                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1124                 if (error)
1125                         break;
1126                 if (!(ifp->if_flags & IFF_RUNNING) ||
1127                     sc->sc_firmware_type == WI_LUCENT) {
1128                         error = EIO;
1129                         break;
1130                 }
1131                 error = wi_get_debug(sc, &wreq);
1132                 if (error == 0)
1133                         error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
1134                 break;
1135         case SIOCSPRISM2DEBUG:
1136                 if ((error = suser_cred(cr, NULL_CRED_OKAY)))
1137                         goto out;
1138                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1139                 if (error)
1140                         break;
1141                 error = wi_set_debug(sc, &wreq);
1142                 break;
1143         case SIOCG80211:
1144                 ireq = (struct ieee80211req *) data;
1145                 switch (ireq->i_type) {
1146                 case IEEE80211_IOC_STATIONNAME:
1147                         ireq->i_len = sc->sc_nodelen + 1;
1148                         error = copyout(sc->sc_nodename, ireq->i_data,
1149                                         ireq->i_len);
1150                         break;
1151                 default:
1152                         error = ieee80211_ioctl(ifp, cmd, data, cr);
1153                         break;
1154                 }
1155                 break;
1156         case SIOCS80211:
1157                 error = suser_cred(cr, NULL_CRED_OKAY);
1158                 if (error)
1159                         break;
1160                 ireq = (struct ieee80211req *) data;
1161                 switch (ireq->i_type) {
1162                 case IEEE80211_IOC_STATIONNAME:
1163                         if (ireq->i_val != 0 ||
1164                             ireq->i_len > IEEE80211_NWID_LEN) {
1165                                 error = EINVAL;
1166                                 break;
1167                         }
1168                         memset(nodename, 0, IEEE80211_NWID_LEN);
1169                         error = copyin(ireq->i_data, nodename, ireq->i_len);
1170                         if (error)
1171                                 break;
1172                         if (sc->sc_enabled) {
1173                                 error = wi_write_ssid(sc, WI_RID_NODENAME,
1174                                         nodename, ireq->i_len);
1175                                 if (error)
1176                                         break;
1177                         }
1178                         memcpy(sc->sc_nodename, nodename, IEEE80211_NWID_LEN);
1179                         sc->sc_nodelen = ireq->i_len;
1180                         break;
1181                 default:
1182                         error = ieee80211_ioctl(ifp, cmd, data, cr);
1183                         break;
1184                 }
1185                 break;
1186         case SIOCSIFCAP:
1187                 ifp->if_capenable &= ~(IFCAP_POLLING);
1188                 ifp->if_capenable |= ifr->ifr_reqcap & (IFCAP_POLLING);
1189                 if (ifp->if_flags & IFF_RUNNING)
1190                         wi_init(sc);
1191                 break;
1192         default:
1193                 error = ieee80211_ioctl(ifp, cmd, data, cr);
1194                 break;
1195         }
1196         if (error == ENETRESET) {
1197                 if (sc->sc_enabled)
1198                         wi_init(sc);    /* XXX no error return */
1199                 error = 0;
1200         }
1201 out:
1202         WI_UNLOCK(sc);
1203
1204         return (error);
1205 }
1206
1207 static int
1208 wi_media_change(struct ifnet *ifp)
1209 {
1210         struct wi_softc *sc = ifp->if_softc;
1211         int error;
1212
1213         error = ieee80211_media_change(ifp);
1214         if (error == ENETRESET) {
1215                 if (sc->sc_enabled)
1216                         wi_init(sc);    /* XXX no error return */
1217                 error = 0;
1218         }
1219         return error;
1220 }
1221
1222 static void
1223 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
1224 {
1225         struct wi_softc *sc = ifp->if_softc;
1226         struct ieee80211com *ic = &sc->sc_ic;
1227         u_int16_t val;
1228         int rate, len;
1229
1230         if (sc->wi_gone || !sc->sc_enabled) {
1231                 imr->ifm_active = IFM_IEEE80211 | IFM_NONE;
1232                 imr->ifm_status = 0;
1233                 return;
1234         }
1235
1236         imr->ifm_status = IFM_AVALID;
1237         imr->ifm_active = IFM_IEEE80211;
1238         if (ic->ic_state == IEEE80211_S_RUN &&
1239             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0)
1240                 imr->ifm_status |= IFM_ACTIVE;
1241         len = sizeof(val);
1242         if (wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) != 0)
1243                 rate = 0;
1244         else {
1245                 /* convert to 802.11 rate */
1246                 rate = val * 2;
1247                 if (sc->sc_firmware_type == WI_LUCENT) {
1248                         if (rate == 4 * 2)
1249                                 rate = 11;      /* 5.5Mbps */
1250                         else if (rate == 5 * 2)
1251                                 rate = 22;      /* 11Mbps */
1252                 } else {
1253                         if (rate == 4*2)
1254                                 rate = 11;      /* 5.5Mbps */
1255                         else if (rate == 8*2)
1256                                 rate = 22;      /* 11Mbps */
1257                 }
1258         }
1259         imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B);
1260         switch (ic->ic_opmode) {
1261         case IEEE80211_M_STA:
1262                 break;
1263         case IEEE80211_M_IBSS:
1264                 imr->ifm_active |= IFM_IEEE80211_ADHOC;
1265                 break;
1266         case IEEE80211_M_AHDEMO:
1267                 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0;
1268                 break;
1269         case IEEE80211_M_HOSTAP:
1270                 imr->ifm_active |= IFM_IEEE80211_HOSTAP;
1271                 break;
1272         case IEEE80211_M_MONITOR:
1273                 imr->ifm_active |= IFM_IEEE80211_MONITOR;
1274                 break;
1275         }
1276 }
1277
1278 static void
1279 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
1280 {
1281         struct ieee80211com *ic = &sc->sc_ic;
1282         struct ieee80211_node *ni = ic->ic_bss;
1283         struct ifnet *ifp = &ic->ic_if;
1284
1285         if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
1286                 return;
1287
1288         DPRINTF(("wi_sync_bssid: bssid %6D -> ", ni->ni_bssid, ":"));
1289         DPRINTF(("%6D ?\n", new_bssid, ":"));
1290
1291         /* In promiscuous mode, the BSSID field is not a reliable
1292          * indicator of the firmware's BSSID. Damp spurious
1293          * change-of-BSSID indications.
1294          */
1295         if ((ifp->if_flags & IFF_PROMISC) != 0 &&
1296             sc->sc_false_syns >= WI_MAX_FALSE_SYNS)
1297                 return;
1298
1299         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1300 }
1301
1302 static void
1303 wi_rx_monitor(struct wi_softc *sc, int fid)
1304 {
1305         struct ieee80211com *ic = &sc->sc_ic;
1306         struct ifnet *ifp = &ic->ic_if;
1307         struct wi_frame *rx_frame;
1308         struct mbuf *m;
1309         int datlen, hdrlen;
1310
1311         /* first allocate mbuf for packet storage */
1312         m = m_getcl(MB_DONTWAIT, MT_DATA, 0);
1313         if (m == NULL) {
1314                 ifp->if_ierrors++;
1315                 return;
1316         }
1317
1318         m->m_pkthdr.rcvif = ifp;
1319
1320         /* now read wi_frame first so we know how much data to read */
1321         if (wi_read_bap(sc, fid, 0, mtod(m, caddr_t), sizeof(*rx_frame))) {
1322                 ifp->if_ierrors++;
1323                 goto done;
1324         }
1325
1326         rx_frame = mtod(m, struct wi_frame *);
1327
1328         switch ((rx_frame->wi_status & WI_STAT_MAC_PORT) >> 8) {
1329         case 7:
1330                 switch (rx_frame->wi_whdr.i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
1331                 case IEEE80211_FC0_TYPE_DATA:
1332                         hdrlen = WI_DATA_HDRLEN;
1333                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1334                         break;
1335                 case IEEE80211_FC0_TYPE_MGT:
1336                         hdrlen = WI_MGMT_HDRLEN;
1337                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1338                         break;
1339                 case IEEE80211_FC0_TYPE_CTL:
1340                         /*
1341                          * prism2 cards don't pass control packets
1342                          * down properly or consistently, so we'll only
1343                          * pass down the header.
1344                          */
1345                         hdrlen = WI_CTL_HDRLEN;
1346                         datlen = 0;
1347                         break;
1348                 default:
1349                         if_printf(ifp, "received packet of unknown type "
1350                                 "on port 7\n");
1351                         ifp->if_ierrors++;
1352                         goto done;
1353                 }
1354                 break;
1355         case 0:
1356                 hdrlen = WI_DATA_HDRLEN;
1357                 datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1358                 break;
1359         default:
1360                 if_printf(ifp, "received packet on invalid "
1361                     "port (wi_status=0x%x)\n", rx_frame->wi_status);
1362                 ifp->if_ierrors++;
1363                 goto done;
1364         }
1365
1366         if (hdrlen + datlen + 2 > MCLBYTES) {
1367                 if_printf(ifp, "oversized packet received "
1368                     "(wi_dat_len=%d, wi_status=0x%x)\n",
1369                     datlen, rx_frame->wi_status);
1370                 ifp->if_ierrors++;
1371                 goto done;
1372         }
1373
1374         if (wi_read_bap(sc, fid, hdrlen, mtod(m, caddr_t) + hdrlen,
1375             datlen + 2) == 0) {
1376                 m->m_pkthdr.len = m->m_len = hdrlen + datlen;
1377                 ifp->if_ipackets++;
1378                 BPF_MTAP(ifp, m);       /* Handle BPF listeners. */
1379         } else
1380                 ifp->if_ierrors++;
1381 done:
1382         m_freem(m);
1383 }
1384
1385 static void
1386 wi_rx_intr(struct wi_softc *sc)
1387 {
1388         struct ieee80211com *ic = &sc->sc_ic;
1389         struct ifnet *ifp = &ic->ic_if;
1390         struct wi_frame frmhdr;
1391         struct mbuf *m;
1392         struct ieee80211_frame *wh;
1393         struct ieee80211_node *ni;
1394         int fid, len, off, rssi;
1395         u_int8_t dir;
1396         u_int16_t status;
1397         u_int32_t rstamp;
1398
1399         fid = CSR_READ_2(sc, WI_RX_FID);
1400
1401         if (sc->wi_debug.wi_monitor) {
1402                 /*
1403                  * If we are in monitor mode just
1404                  * read the data from the device.
1405                  */
1406                 wi_rx_monitor(sc, fid);
1407                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1408                 return;
1409         }
1410
1411         /* First read in the frame header */
1412         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
1413                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1414                 ifp->if_ierrors++;
1415                 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid));
1416                 return;
1417         }
1418
1419         if (IFF_DUMPPKTS(ifp))
1420                 wi_dump_pkt(&frmhdr, NULL, frmhdr.wi_rx_signal);
1421
1422         /*
1423          * Drop undecryptable or packets with receive errors here
1424          */
1425         status = le16toh(frmhdr.wi_status);
1426         if (status & WI_STAT_ERRSTAT) {
1427                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1428                 ifp->if_ierrors++;
1429                 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status));
1430                 return;
1431         }
1432         rssi = frmhdr.wi_rx_signal;
1433         rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
1434             le16toh(frmhdr.wi_rx_tstamp1);
1435
1436         len = le16toh(frmhdr.wi_dat_len);
1437         off = ALIGN(sizeof(struct ieee80211_frame));
1438
1439         /*
1440          * Sometimes the PRISM2.x returns bogusly large frames. Except
1441          * in monitor mode, just throw them away.
1442          */
1443         if (off + len > MCLBYTES) {
1444                 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1445                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1446                         ifp->if_ierrors++;
1447                         DPRINTF(("wi_rx_intr: oversized packet\n"));
1448                         return;
1449                 } else
1450                         len = 0;
1451         }
1452
1453         MGETHDR(m, MB_DONTWAIT, MT_DATA);
1454         if (m == NULL) {
1455                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1456                 ifp->if_ierrors++;
1457                 DPRINTF(("wi_rx_intr: MGET failed\n"));
1458                 return;
1459         }
1460         if (off + len > MHLEN) {
1461                 MCLGET(m, MB_DONTWAIT);
1462                 if ((m->m_flags & M_EXT) == 0) {
1463                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1464                         m_freem(m);
1465                         ifp->if_ierrors++;
1466                         DPRINTF(("wi_rx_intr: MCLGET failed\n"));
1467                         return;
1468                 }
1469         }
1470
1471         m->m_data += off - sizeof(struct ieee80211_frame);
1472         memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
1473         wi_read_bap(sc, fid, sizeof(frmhdr),
1474             m->m_data + sizeof(struct ieee80211_frame), len);
1475         m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
1476         m->m_pkthdr.rcvif = ifp;
1477
1478         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1479
1480 #ifdef WI_RAWBPF
1481         if (sc->sc_drvbpf) {
1482                 /* XXX replace divide by table */
1483                 sc->sc_rx_th.wr_rate = frmhdr.wi_rx_rate / 5;
1484                 sc->sc_rx_th.wr_antsignal = frmhdr.wi_rx_signal;
1485                 sc->sc_rx_th.wr_antnoise = frmhdr.wi_rx_silence;
1486                 sc->sc_rx_th.wr_flags = 0;
1487                 if (frmhdr.wi_status & WI_STAT_PCF)
1488                         sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_CFP;
1489                 bpf_mtap2(sc->sc_drvbpf,
1490                         &sc->sc_rx_th, sc->sc_rx_th_len, m);
1491         }
1492 #endif
1493         wh = mtod(m, struct ieee80211_frame *);
1494         if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1495                 /*
1496                  * WEP is decrypted by hardware. Clear WEP bit
1497                  * header for ieee80211_input().
1498                  */
1499                 wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
1500         }
1501
1502         /* synchronize driver's BSSID with firmware's BSSID */
1503         dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
1504         if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
1505                 wi_sync_bssid(sc, wh->i_addr3);
1506
1507         /*
1508          * Locate the node for sender, track state, and
1509          * then pass this node (referenced) up to the 802.11
1510          * layer for its use.  We are required to pass
1511          * something so we fallback to ic_bss when this frame
1512          * is from an unknown sender.
1513          */
1514         if (ic->ic_opmode != IEEE80211_M_STA) {
1515                 ni = ieee80211_find_node(ic, wh->i_addr2);
1516                 if (ni == NULL)
1517                         ni = ieee80211_ref_node(ic->ic_bss);
1518         } else
1519                 ni = ieee80211_ref_node(ic->ic_bss);
1520         /*
1521          * Send frame up for processing.
1522          */
1523         ieee80211_input(ifp, m, ni, rssi, rstamp);
1524         /*
1525          * The frame may have caused the node to be marked for
1526          * reclamation (e.g. in response to a DEAUTH message)
1527          * so use free_node here instead of unref_node.
1528          */
1529         if (ni == ic->ic_bss)
1530                 ieee80211_unref_node(&ni);
1531         else
1532                 ieee80211_free_node(ic, ni);
1533 }
1534
1535 static void
1536 wi_tx_ex_intr(struct wi_softc *sc)
1537 {
1538         struct ieee80211com *ic = &sc->sc_ic;
1539         struct ifnet *ifp = &ic->ic_if;
1540         struct wi_frame frmhdr;
1541         int fid;
1542
1543         fid = CSR_READ_2(sc, WI_TX_CMP_FID);
1544         /* Read in the frame header */
1545         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
1546                 u_int16_t status = le16toh(frmhdr.wi_status);
1547
1548                 /*
1549                  * Spontaneous station disconnects appear as xmit
1550                  * errors.  Don't announce them and/or count them
1551                  * as an output error.
1552                  */
1553                 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
1554                         if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
1555                                 if_printf(ifp, "tx failed");
1556                                 if (status & WI_TXSTAT_RET_ERR)
1557                                         printf(", retry limit exceeded");
1558                                 if (status & WI_TXSTAT_AGED_ERR)
1559                                         printf(", max transmit lifetime exceeded");
1560                                 if (status & WI_TXSTAT_DISCONNECT)
1561                                         printf(", port disconnected");
1562                                 if (status & WI_TXSTAT_FORM_ERR)
1563                                         printf(", invalid format (data len %u src %6D)",
1564                                                 le16toh(frmhdr.wi_dat_len),
1565                                                 frmhdr.wi_ehdr.ether_shost, ":");
1566                                 if (status & ~0xf)
1567                                         printf(", status=0x%x", status);
1568                                 printf("\n");
1569                         }
1570                         ifp->if_oerrors++;
1571                 } else {
1572                         DPRINTF(("port disconnected\n"));
1573                         ifp->if_collisions++;   /* XXX */
1574                 }
1575         } else
1576                 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid));
1577         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
1578 }
1579
1580 static void
1581 wi_tx_intr(struct wi_softc *sc)
1582 {
1583         struct ieee80211com *ic = &sc->sc_ic;
1584         struct ifnet *ifp = &ic->ic_if;
1585         int fid, cur;
1586
1587         if (sc->wi_gone)
1588                 return;
1589
1590         fid = CSR_READ_2(sc, WI_ALLOC_FID);
1591         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1592
1593         cur = sc->sc_txcur;
1594         if (sc->sc_txd[cur].d_fid != fid) {
1595                 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n",
1596                     fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
1597                 return;
1598         }
1599         sc->sc_tx_timer = 0;
1600         sc->sc_txd[cur].d_len = 0;
1601         sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
1602         if (sc->sc_txd[cur].d_len == 0)
1603                 ifp->if_flags &= ~IFF_OACTIVE;
1604         else {
1605                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
1606                     0, 0)) {
1607                         if_printf(ifp, "xmit failed\n");
1608                         sc->sc_txd[cur].d_len = 0;
1609                 } else {
1610                         sc->sc_tx_timer = 5;
1611                         ifp->if_timer = 1;
1612                 }
1613         }
1614 }
1615
1616 static void
1617 wi_info_intr(struct wi_softc *sc)
1618 {
1619         struct ieee80211com *ic = &sc->sc_ic;
1620         struct ifnet *ifp = &ic->ic_if;
1621         int i, fid, len, off;
1622         u_int16_t ltbuf[2];
1623         u_int16_t stat;
1624         u_int32_t *ptr;
1625
1626         fid = CSR_READ_2(sc, WI_INFO_FID);
1627         wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
1628
1629         switch (le16toh(ltbuf[1])) {
1630
1631         case WI_INFO_LINK_STAT:
1632                 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
1633                 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
1634                 switch (le16toh(stat)) {
1635                 case WI_INFO_LINK_STAT_CONNECTED:
1636                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1637                         if (ic->ic_state == IEEE80211_S_RUN &&
1638                             ic->ic_opmode != IEEE80211_M_IBSS)
1639                                 break;
1640                         /* FALLTHROUGH */
1641                 case WI_INFO_LINK_STAT_AP_CHG:
1642                         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1643                         break;
1644                 case WI_INFO_LINK_STAT_AP_INR:
1645                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1646                         break;
1647                 case WI_INFO_LINK_STAT_AP_OOR:
1648                         if (sc->sc_firmware_type == WI_SYMBOL &&
1649                             sc->sc_scan_timer > 0) {
1650                                 if (wi_cmd(sc, WI_CMD_INQUIRE,
1651                                     WI_INFO_HOST_SCAN_RESULTS, 0, 0) != 0)
1652                                         sc->sc_scan_timer = 0;
1653                                 break;
1654                         }
1655                         if (ic->ic_opmode == IEEE80211_M_STA)
1656                                 sc->sc_flags |= WI_FLAGS_OUTRANGE;
1657                         break;
1658                 case WI_INFO_LINK_STAT_DISCONNECTED:
1659                 case WI_INFO_LINK_STAT_ASSOC_FAILED:
1660                         if (ic->ic_opmode == IEEE80211_M_STA)
1661                                 ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
1662                         break;
1663                 }
1664                 break;
1665
1666         case WI_INFO_COUNTERS:
1667                 /* some card versions have a larger stats structure */
1668                 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
1669                 ptr = (u_int32_t *)&sc->sc_stats;
1670                 off = sizeof(ltbuf);
1671                 for (i = 0; i < len; i++, off += 2, ptr++) {
1672                         wi_read_bap(sc, fid, off, &stat, sizeof(stat));
1673 #ifdef WI_HERMES_STATS_WAR
1674                         if (stat & 0xf000)
1675                                 stat = ~stat;
1676 #endif
1677                         *ptr += stat;
1678                 }
1679                 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries +
1680                     sc->sc_stats.wi_tx_multi_retries +
1681                     sc->sc_stats.wi_tx_retry_limit;
1682                 break;
1683
1684         case WI_INFO_SCAN_RESULTS:
1685         case WI_INFO_HOST_SCAN_RESULTS:
1686                 wi_scan_result(sc, fid, le16toh(ltbuf[0]));
1687                 break;
1688
1689         default:
1690                 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid,
1691                     le16toh(ltbuf[1]), le16toh(ltbuf[0])));
1692                 break;
1693         }
1694         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
1695 }
1696
1697 static int
1698 wi_write_multi(struct wi_softc *sc)
1699 {
1700         struct ifnet *ifp = &sc->sc_ic.ic_if;
1701         int n;
1702         struct ifmultiaddr *ifma;
1703         struct wi_mcast mlist;
1704
1705         if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1706 allmulti:
1707                 memset(&mlist, 0, sizeof(mlist));
1708                 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1709                     sizeof(mlist));
1710         }
1711
1712         n = 0;
1713         LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1714                 if (ifma->ifma_addr->sa_family != AF_LINK)
1715                         continue;
1716                 if (n >= 16)
1717                         goto allmulti;
1718                 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
1719                     (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
1720                 n++;
1721         }
1722         return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1723             IEEE80211_ADDR_LEN * n);
1724 }
1725
1726 static void
1727 wi_read_nicid(struct wi_softc *sc)
1728 {
1729         struct wi_card_ident *id;
1730         char *p;
1731         int len;
1732         u_int16_t ver[4];
1733
1734         /* getting chip identity */
1735         memset(ver, 0, sizeof(ver));
1736         len = sizeof(ver);
1737         wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
1738         device_printf(sc->sc_dev, "using ");
1739
1740         sc->sc_firmware_type = WI_NOTYPE;
1741         for (id = wi_card_ident; id->card_name != NULL; id++) {
1742                 if (le16toh(ver[0]) == id->card_id) {
1743                         printf("%s", id->card_name);
1744                         sc->sc_firmware_type = id->firm_type;
1745                         break;
1746                 }
1747         }
1748         if (sc->sc_firmware_type == WI_NOTYPE) {
1749                 if (le16toh(ver[0]) & 0x8000) {
1750                         printf("Unknown PRISM2 chip");
1751                         sc->sc_firmware_type = WI_INTERSIL;
1752                 } else {
1753                         printf("Unknown Lucent chip");
1754                         sc->sc_firmware_type = WI_LUCENT;
1755                 }
1756         }
1757
1758         /* get primary firmware version (Only Prism chips) */
1759         if (sc->sc_firmware_type != WI_LUCENT) {
1760                 memset(ver, 0, sizeof(ver));
1761                 len = sizeof(ver);
1762                 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
1763                 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
1764                     le16toh(ver[3]) * 100 + le16toh(ver[1]);
1765         }
1766
1767         /* get station firmware version */
1768         memset(ver, 0, sizeof(ver));
1769         len = sizeof(ver);
1770         wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
1771         sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
1772             le16toh(ver[3]) * 100 + le16toh(ver[1]);
1773         if (sc->sc_firmware_type == WI_INTERSIL &&
1774             (sc->sc_sta_firmware_ver == 10102 ||
1775              sc->sc_sta_firmware_ver == 20102)) {
1776                 char ident[12];
1777                 memset(ident, 0, sizeof(ident));
1778                 len = sizeof(ident);
1779                 /* value should be the format like "V2.00-11" */
1780                 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
1781                     *(p = (char *)ident) >= 'A' &&
1782                     p[2] == '.' && p[5] == '-' && p[8] == '\0') {
1783                         sc->sc_firmware_type = WI_SYMBOL;
1784                         sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 +
1785                             (p[3] - '0') * 1000 + (p[4] - '0') * 100 +
1786                             (p[6] - '0') * 10 + (p[7] - '0');
1787                 }
1788         }
1789         printf("\n");
1790         device_printf(sc->sc_dev, "%s Firmware: ",
1791              sc->sc_firmware_type == WI_LUCENT ? "Lucent" :
1792             (sc->sc_firmware_type == WI_SYMBOL ? "Symbol" : "Intersil"));
1793         if (sc->sc_firmware_type != WI_LUCENT)  /* XXX */
1794                 printf("Primary (%u.%u.%u), ",
1795                     sc->sc_pri_firmware_ver / 10000,
1796                     (sc->sc_pri_firmware_ver % 10000) / 100,
1797                     sc->sc_pri_firmware_ver % 100);
1798         printf("Station (%u.%u.%u)\n",
1799             sc->sc_sta_firmware_ver / 10000,
1800             (sc->sc_sta_firmware_ver % 10000) / 100,
1801             sc->sc_sta_firmware_ver % 100);
1802 }
1803
1804 static int
1805 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
1806 {
1807         struct wi_ssid ssid;
1808
1809         if (buflen > IEEE80211_NWID_LEN)
1810                 return ENOBUFS;
1811         memset(&ssid, 0, sizeof(ssid));
1812         ssid.wi_len = htole16(buflen);
1813         memcpy(ssid.wi_ssid, buf, buflen);
1814         return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
1815 }
1816
1817 static int
1818 wi_get_cfg(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1819 {
1820         struct wi_softc *sc = ifp->if_softc;
1821         struct ieee80211com *ic = &sc->sc_ic;
1822         struct ifreq *ifr = (struct ifreq *)data;
1823         struct wi_req wreq;
1824         struct wi_scan_res *res;
1825         size_t reslen;
1826         int len, n, error, mif, val, off, i;
1827
1828         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1829         if (error)
1830                 return error;
1831         len = (wreq.wi_len - 1) * 2;
1832         if (len < sizeof(u_int16_t))
1833                 return ENOSPC;
1834         if (len > sizeof(wreq.wi_val))
1835                 len = sizeof(wreq.wi_val);
1836
1837         switch (wreq.wi_type) {
1838
1839         case WI_RID_IFACE_STATS:
1840                 memcpy(wreq.wi_val, &sc->sc_stats, sizeof(sc->sc_stats));
1841                 if (len < sizeof(sc->sc_stats))
1842                         error = ENOSPC;
1843                 else
1844                         len = sizeof(sc->sc_stats);
1845                 break;
1846
1847         case WI_RID_ENCRYPTION:
1848         case WI_RID_TX_CRYPT_KEY:
1849         case WI_RID_DEFLT_CRYPT_KEYS:
1850         case WI_RID_TX_RATE:
1851                 return ieee80211_cfgget(ifp, cmd, data, cr);
1852
1853         case WI_RID_MICROWAVE_OVEN:
1854                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_MOR)) {
1855                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1856                             &len);
1857                         break;
1858                 }
1859                 wreq.wi_val[0] = htole16(sc->sc_microwave_oven);
1860                 len = sizeof(u_int16_t);
1861                 break;
1862
1863         case WI_RID_DBM_ADJUST:
1864                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_DBMADJUST)) {
1865                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1866                             &len);
1867                         break;
1868                 }
1869                 wreq.wi_val[0] = htole16(sc->sc_dbm_offset);
1870                 len = sizeof(u_int16_t);
1871                 break;
1872
1873         case WI_RID_ROAMING_MODE:
1874                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_ROAMING)) {
1875                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1876                             &len);
1877                         break;
1878                 }
1879                 wreq.wi_val[0] = htole16(sc->sc_roaming_mode);
1880                 len = sizeof(u_int16_t);
1881                 break;
1882
1883         case WI_RID_SYSTEM_SCALE:
1884                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)) {
1885                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1886                             &len);
1887                         break;
1888                 }
1889                 wreq.wi_val[0] = htole16(sc->sc_system_scale);
1890                 len = sizeof(u_int16_t);
1891                 break;
1892
1893         case WI_RID_FRAG_THRESH:
1894                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)) {
1895                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1896                             &len);
1897                         break;
1898                 }
1899                 wreq.wi_val[0] = htole16(ic->ic_fragthreshold);
1900                 len = sizeof(u_int16_t);
1901                 break;
1902
1903         case WI_RID_READ_APS:
1904                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1905                         return ieee80211_cfgget(ifp, cmd, data, cr);
1906                 if (sc->sc_scan_timer > 0) {
1907                         error = EINPROGRESS;
1908                         break;
1909                 }
1910                 n = sc->sc_naps;
1911                 if (len < sizeof(n)) {
1912                         error = ENOSPC;
1913                         break;
1914                 }
1915                 if (len < sizeof(n) + sizeof(struct wi_apinfo) * n)
1916                         n = (len - sizeof(n)) / sizeof(struct wi_apinfo);
1917                 len = sizeof(n) + sizeof(struct wi_apinfo) * n;
1918                 memcpy(wreq.wi_val, &n, sizeof(n));
1919                 memcpy((caddr_t)wreq.wi_val + sizeof(n), sc->sc_aps,
1920                     sizeof(struct wi_apinfo) * n);
1921                 break;
1922
1923         case WI_RID_PRISM2:
1924                 wreq.wi_val[0] = sc->sc_firmware_type != WI_LUCENT;
1925                 len = sizeof(u_int16_t);
1926                 break;
1927
1928         case WI_RID_MIF:
1929                 mif = wreq.wi_val[0];
1930                 error = wi_cmd(sc, WI_CMD_READMIF, mif, 0, 0);
1931                 val = CSR_READ_2(sc, WI_RESP0);
1932                 wreq.wi_val[0] = val;
1933                 len = sizeof(u_int16_t);
1934                 break;
1935
1936         case WI_RID_ZERO_CACHE:
1937         case WI_RID_PROCFRAME:          /* ignore for compatibility */
1938                 /* XXX ??? */
1939                 break;
1940
1941         case WI_RID_READ_CACHE:
1942                 return ieee80211_cfgget(ifp, cmd, data, cr);
1943
1944         case WI_RID_SCAN_RES:           /* compatibility interface */
1945                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1946                         return ieee80211_cfgget(ifp, cmd, data, cr);
1947                 if (sc->sc_scan_timer > 0) {
1948                         error = EINPROGRESS;
1949                         break;
1950                 }
1951                 n = sc->sc_naps;
1952                 if (sc->sc_firmware_type == WI_LUCENT) {
1953                         off = 0;
1954                         reslen = WI_WAVELAN_RES_SIZE;
1955                 } else {
1956                         off = sizeof(struct wi_scan_p2_hdr);
1957                         reslen = WI_PRISM2_RES_SIZE;
1958                 }
1959                 if (len < off + reslen * n)
1960                         n = (len - off) / reslen;
1961                 len = off + reslen * n;
1962                 if (off != 0) {
1963                         struct wi_scan_p2_hdr *p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1964                         /*
1965                          * Prepend Prism-specific header.
1966                          */
1967                         if (len < sizeof(struct wi_scan_p2_hdr)) {
1968                                 error = ENOSPC;
1969                                 break;
1970                         }
1971                         p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1972                         p2->wi_rsvd = 0;
1973                         p2->wi_reason = n;      /* XXX */
1974                 }
1975                 for (i = 0; i < n; i++, off += reslen) {
1976                         const struct wi_apinfo *ap = &sc->sc_aps[i];
1977
1978                         res = (struct wi_scan_res *)((char *)wreq.wi_val + off);
1979                         res->wi_chan = ap->channel;
1980                         res->wi_noise = ap->noise;
1981                         res->wi_signal = ap->signal;
1982                         IEEE80211_ADDR_COPY(res->wi_bssid, ap->bssid);
1983                         res->wi_interval = ap->interval;
1984                         res->wi_capinfo = ap->capinfo;
1985                         res->wi_ssid_len = ap->namelen;
1986                         memcpy(res->wi_ssid, ap->name,
1987                                 IEEE80211_NWID_LEN);
1988                         if (sc->sc_firmware_type != WI_LUCENT) {
1989                                 /* XXX not saved from Prism cards */
1990                                 memset(res->wi_srates, 0,
1991                                         sizeof(res->wi_srates));
1992                                 res->wi_rate = ap->rate;
1993                                 res->wi_rsvd = 0;
1994                         }
1995                 }
1996                 break;
1997
1998         default:
1999                 if (sc->sc_enabled) {
2000                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
2001                             &len);
2002                         break;
2003                 }
2004                 switch (wreq.wi_type) {
2005                 case WI_RID_MAX_DATALEN:
2006                         wreq.wi_val[0] = htole16(sc->sc_max_datalen);
2007                         len = sizeof(u_int16_t);
2008                         break;
2009                 case WI_RID_RTS_THRESH:
2010                         wreq.wi_val[0] = htole16(ic->ic_rtsthreshold);
2011                         len = sizeof(u_int16_t);
2012                         break;
2013                 case WI_RID_CNFAUTHMODE:
2014                         wreq.wi_val[0] = htole16(sc->sc_cnfauthmode);
2015                         len = sizeof(u_int16_t);
2016                         break;
2017                 case WI_RID_NODENAME:
2018                         if (len < sc->sc_nodelen + sizeof(u_int16_t)) {
2019                                 error = ENOSPC;
2020                                 break;
2021                         }
2022                         len = sc->sc_nodelen + sizeof(u_int16_t);
2023                         wreq.wi_val[0] = htole16((sc->sc_nodelen + 1) / 2);
2024                         memcpy(&wreq.wi_val[1], sc->sc_nodename,
2025                             sc->sc_nodelen);
2026                         break;
2027                 default:
2028                         return ieee80211_cfgget(ifp, cmd, data, cr);
2029                 }
2030                 break;
2031         }
2032         if (error)
2033                 return error;
2034         wreq.wi_len = (len + 1) / 2 + 1;
2035         return copyout(&wreq, ifr->ifr_data, (wreq.wi_len + 1) * 2);
2036 }
2037
2038 static int
2039 wi_set_cfg(struct ifnet *ifp, u_long cmd, caddr_t data)
2040 {
2041         struct wi_softc *sc = ifp->if_softc;
2042         struct ieee80211com *ic = &sc->sc_ic;
2043         struct ifreq *ifr = (struct ifreq *)data;
2044         struct wi_req wreq;
2045         struct mbuf *m;
2046         int i, len, error, mif, val;
2047         struct ieee80211_rateset *rs;
2048
2049         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
2050         if (error)
2051                 return error;
2052         len = wreq.wi_len ? (wreq.wi_len - 1) * 2 : 0;
2053         switch (wreq.wi_type) {
2054         case WI_RID_DBM_ADJUST:
2055                 return ENODEV;
2056
2057         case WI_RID_NODENAME:
2058                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2059                     le16toh(wreq.wi_val[0]) > sizeof(sc->sc_nodename)) {
2060                         error = ENOSPC;
2061                         break;
2062                 }
2063                 if (sc->sc_enabled) {
2064                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2065                             len);
2066                         if (error)
2067                                 break;
2068                 }
2069                 sc->sc_nodelen = le16toh(wreq.wi_val[0]) * 2;
2070                 memcpy(sc->sc_nodename, &wreq.wi_val[1], sc->sc_nodelen);
2071                 break;
2072
2073         case WI_RID_MICROWAVE_OVEN:
2074         case WI_RID_ROAMING_MODE:
2075         case WI_RID_SYSTEM_SCALE:
2076         case WI_RID_FRAG_THRESH:
2077                 if (wreq.wi_type == WI_RID_MICROWAVE_OVEN &&
2078                     (sc->sc_flags & WI_FLAGS_HAS_MOR) == 0)
2079                         break;
2080                 if (wreq.wi_type == WI_RID_ROAMING_MODE &&
2081                     (sc->sc_flags & WI_FLAGS_HAS_ROAMING) == 0)
2082                         break;
2083                 if (wreq.wi_type == WI_RID_SYSTEM_SCALE &&
2084                     (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) == 0)
2085                         break;
2086                 if (wreq.wi_type == WI_RID_FRAG_THRESH &&
2087                     (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) == 0)
2088                         break;
2089                 /* FALLTHROUGH */
2090         case WI_RID_RTS_THRESH:
2091         case WI_RID_CNFAUTHMODE:
2092         case WI_RID_MAX_DATALEN:
2093                 if (sc->sc_enabled) {
2094                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2095                             sizeof(u_int16_t));
2096                         if (error)
2097                                 break;
2098                 }
2099                 switch (wreq.wi_type) {
2100                 case WI_RID_FRAG_THRESH:
2101                         ic->ic_fragthreshold = le16toh(wreq.wi_val[0]);
2102                         break;
2103                 case WI_RID_RTS_THRESH:
2104                         ic->ic_rtsthreshold = le16toh(wreq.wi_val[0]);
2105                         break;
2106                 case WI_RID_MICROWAVE_OVEN:
2107                         sc->sc_microwave_oven = le16toh(wreq.wi_val[0]);
2108                         break;
2109                 case WI_RID_ROAMING_MODE:
2110                         sc->sc_roaming_mode = le16toh(wreq.wi_val[0]);
2111                         break;
2112                 case WI_RID_SYSTEM_SCALE:
2113                         sc->sc_system_scale = le16toh(wreq.wi_val[0]);
2114                         break;
2115                 case WI_RID_CNFAUTHMODE:
2116                         sc->sc_cnfauthmode = le16toh(wreq.wi_val[0]);
2117                         break;
2118                 case WI_RID_MAX_DATALEN:
2119                         sc->sc_max_datalen = le16toh(wreq.wi_val[0]);
2120                         break;
2121                 }
2122                 break;
2123
2124         case WI_RID_TX_RATE:
2125                 switch (le16toh(wreq.wi_val[0])) {
2126                 case 3:
2127                         ic->ic_fixed_rate = -1;
2128                         break;
2129                 default:
2130                         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
2131                         for (i = 0; i < rs->rs_nrates; i++) {
2132                                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL)
2133                                     / 2 == le16toh(wreq.wi_val[0]))
2134                                         break;
2135                         }
2136                         if (i == rs->rs_nrates)
2137                                 return EINVAL;
2138                         ic->ic_fixed_rate = i;
2139                 }
2140                 if (sc->sc_enabled)
2141                         error = wi_write_txrate(sc);
2142                 break;
2143
2144         case WI_RID_SCAN_APS:
2145                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2146                         error = wi_scan_ap(sc, 0x3fff, 0x000f);
2147                 break;
2148
2149         case WI_RID_SCAN_REQ:           /* compatibility interface */
2150                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2151                         error = wi_scan_ap(sc, wreq.wi_val[0], wreq.wi_val[1]);
2152                 break;
2153
2154         case WI_RID_MGMT_XMIT:
2155                 if (!sc->sc_enabled) {
2156                         error = ENETDOWN;
2157                         break;
2158                 }
2159                 if (ic->ic_mgtq.ifq_len > 5) {
2160                         error = EAGAIN;
2161                         break;
2162                 }
2163                 /* XXX wi_len looks in u_int8_t, not in u_int16_t */
2164                 m = m_devget((char *)&wreq.wi_val, wreq.wi_len, 0, ifp, NULL);
2165                 if (m == NULL) {
2166                         error = ENOMEM;
2167                         break;
2168                 }
2169                 IF_ENQUEUE(&ic->ic_mgtq, m);
2170                 break;
2171
2172         case WI_RID_MIF:
2173                 mif = wreq.wi_val[0];
2174                 val = wreq.wi_val[1];
2175                 error = wi_cmd(sc, WI_CMD_WRITEMIF, mif, val, 0);
2176                 break;
2177
2178         case WI_RID_PROCFRAME:          /* ignore for compatibility */
2179                 break;
2180
2181         case WI_RID_OWN_SSID:
2182                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2183                     le16toh(wreq.wi_val[0]) > IEEE80211_NWID_LEN) {
2184                         error = ENOSPC;
2185                         break;
2186                 }
2187                 memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
2188                 ic->ic_des_esslen = le16toh(wreq.wi_val[0]) * 2;
2189                 memcpy(ic->ic_des_essid, &wreq.wi_val[1], ic->ic_des_esslen);
2190                 error = ENETRESET;
2191                 break;
2192
2193         default:
2194                 if (sc->sc_enabled) {
2195                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2196                             len);
2197                         if (error)
2198                                 break;
2199                 }
2200                 error = ieee80211_cfgset(ifp, cmd, data);
2201                 break;
2202         }
2203         return error;
2204 }
2205
2206 static int
2207 wi_write_txrate(struct wi_softc *sc)
2208 {
2209         struct ieee80211com *ic = &sc->sc_ic;
2210         int i;
2211         u_int16_t rate;
2212
2213         if (ic->ic_fixed_rate < 0)
2214                 rate = 0;       /* auto */
2215         else
2216                 rate = (ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ic->ic_fixed_rate] &
2217                     IEEE80211_RATE_VAL) / 2;
2218
2219         /* rate: 0, 1, 2, 5, 11 */
2220
2221         switch (sc->sc_firmware_type) {
2222         case WI_LUCENT:
2223                 switch (rate) {
2224                 case 0:                 /* auto == 11mbps auto */
2225                         rate = 3;
2226                         break;
2227                 /* case 1, 2 map to 1, 2*/
2228                 case 5:                 /* 5.5Mbps -> 4 */
2229                         rate = 4;
2230                         break;
2231                 case 11:                /* 11mbps -> 5 */
2232                         rate = 5;
2233                         break;
2234                 default:
2235                         break;
2236                 }
2237                 break;
2238         default:
2239                 /* Choose a bit according to this table.
2240                  *
2241                  * bit | data rate
2242                  * ----+-------------------
2243                  * 0   | 1Mbps
2244                  * 1   | 2Mbps
2245                  * 2   | 5.5Mbps
2246                  * 3   | 11Mbps
2247                  */
2248                 for (i = 8; i > 0; i >>= 1) {
2249                         if (rate >= i)
2250                                 break;
2251                 }
2252                 if (i == 0)
2253                         rate = 0xf;     /* auto */
2254                 else
2255                         rate = i;
2256                 break;
2257         }
2258         return wi_write_val(sc, WI_RID_TX_RATE, rate);
2259 }
2260
2261 static int
2262 wi_write_wep(struct wi_softc *sc)
2263 {
2264         struct ieee80211com *ic = &sc->sc_ic;
2265         int error = 0;
2266         int i, keylen;
2267         u_int16_t val;
2268         struct wi_key wkey[IEEE80211_WEP_NKID];
2269
2270         switch (sc->sc_firmware_type) {
2271         case WI_LUCENT:
2272                 val = (ic->ic_flags & IEEE80211_F_WEPON) ? 1 : 0;
2273                 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
2274                 if (error)
2275                         break;
2276                 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, ic->ic_wep_txkey);
2277                 if (error)
2278                         break;
2279                 memset(wkey, 0, sizeof(wkey));
2280                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2281                         keylen = ic->ic_nw_keys[i].wk_len;
2282                         wkey[i].wi_keylen = htole16(keylen);
2283                         memcpy(wkey[i].wi_keydat, ic->ic_nw_keys[i].wk_key,
2284                             keylen);
2285                 }
2286                 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
2287                     wkey, sizeof(wkey));
2288                 break;
2289
2290         case WI_INTERSIL:
2291         case WI_SYMBOL:
2292                 if (ic->ic_flags & IEEE80211_F_WEPON) {
2293                         /*
2294                          * ONLY HWB3163 EVAL-CARD Firmware version
2295                          * less than 0.8 variant2
2296                          *
2297                          *   If promiscuous mode disable, Prism2 chip
2298                          *  does not work with WEP .
2299                          * It is under investigation for details.
2300                          * (ichiro@netbsd.org)
2301                          */
2302                         if (sc->sc_firmware_type == WI_INTERSIL &&
2303                             sc->sc_sta_firmware_ver < 802 ) {
2304                                 /* firm ver < 0.8 variant 2 */
2305                                 wi_write_val(sc, WI_RID_PROMISC, 1);
2306                         }
2307                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2308                             sc->sc_cnfauthmode);
2309                         val = PRIVACY_INVOKED | EXCLUDE_UNENCRYPTED;
2310                         /*
2311                          * Encryption firmware has a bug for HostAP mode.
2312                          */
2313                         if (sc->sc_firmware_type == WI_INTERSIL &&
2314                             ic->ic_opmode == IEEE80211_M_HOSTAP)
2315                                 val |= HOST_ENCRYPT;
2316                 } else {
2317                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2318                             IEEE80211_AUTH_OPEN);
2319                         val = HOST_ENCRYPT | HOST_DECRYPT;
2320                 }
2321                 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
2322                 if (error)
2323                         break;
2324                 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY,
2325                     ic->ic_wep_txkey);
2326                 if (error)
2327                         break;
2328                 /*
2329                  * It seems that the firmware accept 104bit key only if
2330                  * all the keys have 104bit length.  We get the length of
2331                  * the transmit key and use it for all other keys.
2332                  * Perhaps we should use software WEP for such situation.
2333                  */
2334                 keylen = ic->ic_nw_keys[ic->ic_wep_txkey].wk_len;
2335                 if (keylen > IEEE80211_WEP_KEYLEN)
2336                         keylen = 13;    /* 104bit keys */
2337                 else
2338                         keylen = IEEE80211_WEP_KEYLEN;
2339                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2340                         error = wi_write_rid(sc, WI_RID_P2_CRYPT_KEY0 + i,
2341                             ic->ic_nw_keys[i].wk_key, keylen);
2342                         if (error)
2343                                 break;
2344                 }
2345                 break;
2346         }
2347         return error;
2348 }
2349
2350 static int
2351 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
2352 {
2353         int                     i, s = 0;
2354         static volatile int count  = 0;
2355
2356         if (sc->wi_gone)
2357                 return (ENODEV);
2358
2359         if (count > 0)
2360                 panic("Hey partner, hold on there!");
2361         count++;
2362
2363         /* wait for the busy bit to clear */
2364         for (i = sc->wi_cmd_count; i > 0; i--) {        /* 500ms */
2365                 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
2366                         break;
2367                 DELAY(1*1000);  /* 1ms */
2368         }
2369         if (i == 0) {
2370                 device_printf(sc->sc_dev, "wi_cmd: busy bit won't clear.\n" );
2371                 sc->wi_gone = 1;
2372                 count--;
2373                 return(ETIMEDOUT);
2374         }
2375
2376         CSR_WRITE_2(sc, WI_PARAM0, val0);
2377         CSR_WRITE_2(sc, WI_PARAM1, val1);
2378         CSR_WRITE_2(sc, WI_PARAM2, val2);
2379         CSR_WRITE_2(sc, WI_COMMAND, cmd);
2380
2381         if (cmd == WI_CMD_INI) {
2382                 /* XXX: should sleep here. */
2383                 DELAY(100*1000);                /* 100ms delay for init */
2384         }
2385         for (i = 0; i < WI_TIMEOUT; i++) {
2386                 /*
2387                  * Wait for 'command complete' bit to be
2388                  * set in the event status register.
2389                  */
2390                 s = CSR_READ_2(sc, WI_EVENT_STAT);
2391                 if (s & WI_EV_CMD) {
2392                         /* Ack the event and read result code. */
2393                         s = CSR_READ_2(sc, WI_STATUS);
2394                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
2395                         if (s & WI_STAT_CMD_RESULT) {
2396                                 count--;
2397                                 return(EIO);
2398                         }
2399                         break;
2400                 }
2401                 DELAY(WI_DELAY);
2402         }
2403
2404         count--;
2405         if (i == WI_TIMEOUT) {
2406                 device_printf(sc->sc_dev,
2407                     "timeout in wi_cmd 0x%04x; event status 0x%04x\n", cmd, s);
2408                 if (s == 0xffff)
2409                         sc->wi_gone = 1;
2410                 return(ETIMEDOUT);
2411         }
2412         return (0);
2413 }
2414
2415 static int
2416 wi_seek_bap(struct wi_softc *sc, int id, int off)
2417 {
2418         int i, status;
2419
2420         CSR_WRITE_2(sc, WI_SEL0, id);
2421         CSR_WRITE_2(sc, WI_OFF0, off);
2422
2423         for (i = 0; ; i++) {
2424                 status = CSR_READ_2(sc, WI_OFF0);
2425                 if ((status & WI_OFF_BUSY) == 0)
2426                         break;
2427                 if (i == WI_TIMEOUT) {
2428                         device_printf(sc->sc_dev, "timeout in wi_seek to %x/%x\n",
2429                             id, off);
2430                         sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2431                         if (status == 0xffff)
2432                                 sc->wi_gone = 1;
2433                         return ETIMEDOUT;
2434                 }
2435                 DELAY(1);
2436         }
2437         if (status & WI_OFF_ERR) {
2438                 device_printf(sc->sc_dev, "failed in wi_seek to %x/%x\n", id, off);
2439                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2440                 return EIO;
2441         }
2442         sc->sc_bap_id = id;
2443         sc->sc_bap_off = off;
2444         return 0;
2445 }
2446
2447 static int
2448 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2449 {
2450         u_int16_t *ptr;
2451         int i, error, cnt;
2452
2453         if (buflen == 0)
2454                 return 0;
2455         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2456                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2457                         return error;
2458         }
2459         cnt = (buflen + 1) / 2;
2460         ptr = (u_int16_t *)buf;
2461         for (i = 0; i < cnt; i++)
2462                 *ptr++ = CSR_READ_2(sc, WI_DATA0);
2463         sc->sc_bap_off += cnt * 2;
2464         return 0;
2465 }
2466
2467 static int
2468 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2469 {
2470         u_int16_t *ptr;
2471         int i, error, cnt;
2472
2473         if (buflen == 0)
2474                 return 0;
2475
2476 #ifdef WI_HERMES_AUTOINC_WAR
2477   again:
2478 #endif
2479         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2480                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2481                         return error;
2482         }
2483         cnt = (buflen + 1) / 2;
2484         ptr = (u_int16_t *)buf;
2485         for (i = 0; i < cnt; i++)
2486                 CSR_WRITE_2(sc, WI_DATA0, ptr[i]);
2487         sc->sc_bap_off += cnt * 2;
2488
2489 #ifdef WI_HERMES_AUTOINC_WAR
2490         /*
2491          * According to the comments in the HCF Light code, there is a bug
2492          * in the Hermes (or possibly in certain Hermes firmware revisions)
2493          * where the chip's internal autoincrement counter gets thrown off
2494          * during data writes:  the autoincrement is missed, causing one
2495          * data word to be overwritten and subsequent words to be written to
2496          * the wrong memory locations. The end result is that we could end
2497          * up transmitting bogus frames without realizing it. The workaround
2498          * for this is to write a couple of extra guard words after the end
2499          * of the transfer, then attempt to read then back. If we fail to
2500          * locate the guard words where we expect them, we preform the
2501          * transfer over again.
2502          */
2503         if ((sc->sc_flags & WI_FLAGS_BUG_AUTOINC) && (id & 0xf000) == 0) {
2504                 CSR_WRITE_2(sc, WI_DATA0, 0x1234);
2505                 CSR_WRITE_2(sc, WI_DATA0, 0x5678);
2506                 wi_seek_bap(sc, id, sc->sc_bap_off);
2507                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2508                 if (CSR_READ_2(sc, WI_DATA0) != 0x1234 ||
2509                     CSR_READ_2(sc, WI_DATA0) != 0x5678) {
2510                         device_printf(sc->sc_dev,
2511                                 "detect auto increment bug, try again\n");
2512                         goto again;
2513                 }
2514         }
2515 #endif
2516         return 0;
2517 }
2518
2519 static int
2520 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
2521 {
2522         int error, len;
2523         struct mbuf *m;
2524
2525         for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
2526                 if (m->m_len == 0)
2527                         continue;
2528
2529                 len = min(m->m_len, totlen);
2530
2531                 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
2532                         m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
2533                         return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
2534                             totlen);
2535                 }
2536
2537                 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
2538                         return error;
2539
2540                 off += m->m_len;
2541                 totlen -= len;
2542         }
2543         return 0;
2544 }
2545
2546 static int
2547 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
2548 {
2549         int i;
2550
2551         if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
2552                 device_printf(sc->sc_dev, "failed to allocate %d bytes on NIC\n",
2553                     len);
2554                 return ENOMEM;
2555         }
2556
2557         for (i = 0; i < WI_TIMEOUT; i++) {
2558                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
2559                         break;
2560                 if (i == WI_TIMEOUT) {
2561                         device_printf(sc->sc_dev, "timeout in alloc\n");
2562                         return ETIMEDOUT;
2563                 }
2564                 DELAY(1);
2565         }
2566         *idp = CSR_READ_2(sc, WI_ALLOC_FID);
2567         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
2568         return 0;
2569 }
2570
2571 static int
2572 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
2573 {
2574         int error, len;
2575         u_int16_t ltbuf[2];
2576
2577         /* Tell the NIC to enter record read mode. */
2578         error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
2579         if (error)
2580                 return error;
2581
2582         error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2583         if (error)
2584                 return error;
2585
2586         if (le16toh(ltbuf[1]) != rid) {
2587                 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n",
2588                     rid, le16toh(ltbuf[1]));
2589                 return EIO;
2590         }
2591         len = (le16toh(ltbuf[0]) - 1) * 2;       /* already got rid */
2592         if (*buflenp < len) {
2593                 device_printf(sc->sc_dev, "record buffer is too small, "
2594                     "rid=%x, size=%d, len=%d\n",
2595                     rid, *buflenp, len);
2596                 return ENOSPC;
2597         }
2598         *buflenp = len;
2599         return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
2600 }
2601
2602 static int
2603 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen)
2604 {
2605         int error;
2606         u_int16_t ltbuf[2];
2607
2608         ltbuf[0] = htole16((buflen + 1) / 2 + 1);        /* includes rid */
2609         ltbuf[1] = htole16(rid);
2610
2611         error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2612         if (error)
2613                 return error;
2614         error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
2615         if (error)
2616                 return error;
2617
2618         return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
2619 }
2620
2621 static int
2622 wi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
2623 {
2624         struct ifnet *ifp = &ic->ic_if;
2625         struct wi_softc *sc = ifp->if_softc;
2626         struct ieee80211_node *ni = ic->ic_bss;
2627         int buflen;
2628         u_int16_t val;
2629         struct wi_ssid ssid;
2630         u_int8_t old_bssid[IEEE80211_ADDR_LEN];
2631
2632         DPRINTF(("%s: %s -> %s\n", __func__,
2633                 ieee80211_state_name[ic->ic_state],
2634                 ieee80211_state_name[nstate]));
2635
2636         switch (nstate) {
2637         case IEEE80211_S_INIT:
2638                 ic->ic_flags &= ~IEEE80211_F_SIBSS;
2639                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2640                 return (*sc->sc_newstate)(ic, nstate, arg);
2641
2642         case IEEE80211_S_RUN:
2643                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2644                 buflen = IEEE80211_ADDR_LEN;
2645                 wi_read_rid(sc, WI_RID_CURRENT_BSSID, ni->ni_bssid, &buflen);
2646                 IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid);
2647                 buflen = sizeof(val);
2648                 wi_read_rid(sc, WI_RID_CURRENT_CHAN, &val, &buflen);
2649                 /* XXX validate channel */
2650                 ni->ni_chan = &ic->ic_channels[le16toh(val)];
2651 #ifdef WI_RAWBPF
2652                 sc->sc_tx_th.wt_chan_freq = sc->sc_rx_th.wr_chan_freq =
2653                         htole16(ni->ni_chan->ic_freq);
2654                 sc->sc_tx_th.wt_chan_flags = sc->sc_rx_th.wr_chan_flags =
2655                         htole16(ni->ni_chan->ic_flags);
2656 #endif
2657
2658                 if (IEEE80211_ADDR_EQ(old_bssid, ni->ni_bssid))
2659                         sc->sc_false_syns++;
2660                 else
2661                         sc->sc_false_syns = 0;
2662
2663                 if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
2664                         ni->ni_esslen = ic->ic_des_esslen;
2665                         memcpy(ni->ni_essid, ic->ic_des_essid, ni->ni_esslen);
2666                         ni->ni_rates = ic->ic_sup_rates[IEEE80211_MODE_11B];
2667                         ni->ni_intval = ic->ic_lintval;
2668                         ni->ni_capinfo = IEEE80211_CAPINFO_ESS;
2669                         if (ic->ic_flags & IEEE80211_F_WEPON)
2670                                 ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY;
2671                 } else {
2672                         /* XXX check return value */
2673                         buflen = sizeof(ssid);
2674                         wi_read_rid(sc, WI_RID_CURRENT_SSID, &ssid, &buflen);
2675                         ni->ni_esslen = le16toh(ssid.wi_len);
2676                         if (ni->ni_esslen > IEEE80211_NWID_LEN)
2677                                 ni->ni_esslen = IEEE80211_NWID_LEN;     /*XXX*/
2678                         memcpy(ni->ni_essid, ssid.wi_ssid, ni->ni_esslen);
2679                 }
2680                 break;
2681
2682         case IEEE80211_S_SCAN:
2683         case IEEE80211_S_AUTH:
2684         case IEEE80211_S_ASSOC:
2685                 break;
2686         }
2687
2688         ic->ic_state = nstate;          /* NB: skip normal ieee80211 handling */
2689         return 0;
2690 }
2691
2692 static int
2693 wi_scan_ap(struct wi_softc *sc, u_int16_t chanmask, u_int16_t txrate)
2694 {
2695         int error = 0;
2696         u_int16_t val[2];
2697
2698         if (!sc->sc_enabled)
2699                 return ENXIO;
2700         switch (sc->sc_firmware_type) {
2701         case WI_LUCENT:
2702                 (void)wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
2703                 break;
2704         case WI_INTERSIL:
2705                 val[0] = chanmask;      /* channel */
2706                 val[1] = txrate;        /* tx rate */
2707                 error = wi_write_rid(sc, WI_RID_SCAN_REQ, val, sizeof(val));
2708                 break;
2709         case WI_SYMBOL:
2710                 /*
2711                  * XXX only supported on 3.x ?
2712                  */
2713                 val[0] = BSCAN_BCAST | BSCAN_ONETIME;
2714                 error = wi_write_rid(sc, WI_RID_BCAST_SCAN_REQ,
2715                     val, sizeof(val[0]));
2716                 break;
2717         }
2718         if (error == 0) {
2719                 sc->sc_scan_timer = WI_SCAN_WAIT;
2720                 sc->sc_ic.ic_if.if_timer = 1;
2721                 DPRINTF(("wi_scan_ap: start scanning, "
2722                         "chamask 0x%x txrate 0x%x\n", chanmask, txrate));
2723         }
2724         return error;
2725 }
2726
2727 static void
2728 wi_scan_result(struct wi_softc *sc, int fid, int cnt)
2729 {
2730 #define N(a)    (sizeof (a) / sizeof (a[0]))
2731         int i, naps, off, szbuf;
2732         struct wi_scan_header ws_hdr;   /* Prism2 header */
2733         struct wi_scan_data_p2 ws_dat;  /* Prism2 scantable*/
2734         struct wi_apinfo *ap;
2735
2736         off = sizeof(u_int16_t) * 2;
2737         memset(&ws_hdr, 0, sizeof(ws_hdr));
2738         switch (sc->sc_firmware_type) {
2739         case WI_INTERSIL:
2740                 wi_read_bap(sc, fid, off, &ws_hdr, sizeof(ws_hdr));
2741                 off += sizeof(ws_hdr);
2742                 szbuf = sizeof(struct wi_scan_data_p2);
2743                 break;
2744         case WI_SYMBOL:
2745                 szbuf = sizeof(struct wi_scan_data_p2) + 6;
2746                 break;
2747         case WI_LUCENT:
2748                 szbuf = sizeof(struct wi_scan_data);
2749                 break;
2750         default:
2751                 device_printf(sc->sc_dev,
2752                         "wi_scan_result: unknown firmware type %u\n",
2753                         sc->sc_firmware_type);
2754                 naps = 0;
2755                 goto done;
2756         }
2757         naps = (cnt * 2 + 2 - off) / szbuf;
2758         if (naps > N(sc->sc_aps))
2759                 naps = N(sc->sc_aps);
2760         sc->sc_naps = naps;
2761         /* Read Data */
2762         ap = sc->sc_aps;
2763         memset(&ws_dat, 0, sizeof(ws_dat));
2764         for (i = 0; i < naps; i++, ap++) {
2765                 wi_read_bap(sc, fid, off, &ws_dat,
2766                     (sizeof(ws_dat) < szbuf ? sizeof(ws_dat) : szbuf));
2767                 DPRINTF2(("wi_scan_result: #%d: off %d bssid %6D\n", i, off,
2768                     ws_dat.wi_bssid, ":"));
2769                 off += szbuf;
2770                 ap->scanreason = le16toh(ws_hdr.wi_reason);
2771                 memcpy(ap->bssid, ws_dat.wi_bssid, sizeof(ap->bssid));
2772                 ap->channel = le16toh(ws_dat.wi_chid);
2773                 ap->signal  = le16toh(ws_dat.wi_signal);
2774                 ap->noise   = le16toh(ws_dat.wi_noise);
2775                 ap->quality = ap->signal - ap->noise;
2776                 ap->capinfo = le16toh(ws_dat.wi_capinfo);
2777                 ap->interval = le16toh(ws_dat.wi_interval);
2778                 ap->rate    = le16toh(ws_dat.wi_rate);
2779                 ap->namelen = le16toh(ws_dat.wi_namelen);
2780                 if (ap->namelen > sizeof(ap->name))
2781                         ap->namelen = sizeof(ap->name);
2782                 memcpy(ap->name, ws_dat.wi_name, ap->namelen);
2783         }
2784 done:
2785         /* Done scanning */
2786         sc->sc_scan_timer = 0;
2787         DPRINTF(("wi_scan_result: scan complete: ap %d\n", naps));
2788 #undef N
2789 }
2790
2791 static void
2792 wi_dump_pkt(struct wi_frame *wh, struct ieee80211_node *ni, int rssi)
2793 {
2794         ieee80211_dump_pkt((u_int8_t *) &wh->wi_whdr, sizeof(wh->wi_whdr),
2795             ni ? ni->ni_rates.rs_rates[ni->ni_txrate] & IEEE80211_RATE_VAL : -1, rssi);
2796         printf(" status 0x%x rx_tstamp1 %u rx_tstamp0 0x%u rx_silence %u\n",
2797                 le16toh(wh->wi_status), le16toh(wh->wi_rx_tstamp1),
2798                 le16toh(wh->wi_rx_tstamp0), wh->wi_rx_silence);
2799         printf(" rx_signal %u rx_rate %u rx_flow %u\n",
2800                 wh->wi_rx_signal, wh->wi_rx_rate, wh->wi_rx_flow);
2801         printf(" tx_rtry %u tx_rate %u tx_ctl 0x%x dat_len %u\n",
2802                 wh->wi_tx_rtry, wh->wi_tx_rate,
2803                 le16toh(wh->wi_tx_ctl), le16toh(wh->wi_dat_len));
2804         printf(" ehdr dst %6D src %6D type 0x%x\n",
2805                 wh->wi_ehdr.ether_dhost, ":", wh->wi_ehdr.ether_shost, ":",
2806                 wh->wi_ehdr.ether_type);
2807 }
2808
2809 int
2810 wi_alloc(device_t dev, int rid)
2811 {
2812         struct wi_softc *sc = device_get_softc(dev);
2813
2814         if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
2815                 sc->iobase_rid = rid;
2816                 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
2817                     &sc->iobase_rid, 0, ~0, (1 << 6),
2818                     rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
2819                 if (!sc->iobase) {
2820                         device_printf(dev, "No I/O space?!\n");
2821                         return (ENXIO);
2822                 }
2823
2824                 sc->wi_io_addr = rman_get_start(sc->iobase);
2825                 sc->wi_btag = rman_get_bustag(sc->iobase);
2826                 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
2827         } else {
2828                 sc->mem_rid = rid;
2829                 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
2830                     &sc->mem_rid, RF_ACTIVE);
2831
2832                 if (!sc->mem) {
2833                         device_printf(dev, "No Mem space on prism2.5?\n");
2834                         return (ENXIO);
2835                 }
2836
2837                 sc->wi_btag = rman_get_bustag(sc->mem);
2838                 sc->wi_bhandle = rman_get_bushandle(sc->mem);
2839         }
2840
2841
2842         sc->irq_rid = 0;
2843         sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
2844             RF_ACTIVE |
2845             ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
2846
2847         if (!sc->irq) {
2848                 wi_free(dev);
2849                 device_printf(dev, "No irq?!\n");
2850                 return (ENXIO);
2851         }
2852
2853         sc->sc_dev = dev;
2854         sc->sc_unit = device_get_unit(dev);
2855
2856         return (0);
2857 }
2858
2859 void
2860 wi_free(device_t dev)
2861 {
2862         struct wi_softc *sc = device_get_softc(dev);
2863
2864         if (sc->iobase != NULL) {
2865                 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
2866                 sc->iobase = NULL;
2867         }
2868         if (sc->irq != NULL) {
2869                 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
2870                 sc->irq = NULL;
2871         }
2872         if (sc->mem != NULL) {
2873                 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
2874                 sc->mem = NULL;
2875         }
2876
2877         return;
2878 }
2879
2880 static int
2881 wi_get_debug(struct wi_softc *sc, struct wi_req *wreq)
2882 {
2883         int error = 0;
2884
2885         wreq->wi_len = 1;
2886
2887         switch (wreq->wi_type) {
2888         case WI_DEBUG_SLEEP:
2889                 wreq->wi_len++;
2890                 wreq->wi_val[0] = sc->wi_debug.wi_sleep;
2891                 break;
2892         case WI_DEBUG_DELAYSUPP:
2893                 wreq->wi_len++;
2894                 wreq->wi_val[0] = sc->wi_debug.wi_delaysupp;
2895                 break;
2896         case WI_DEBUG_TXSUPP:
2897                 wreq->wi_len++;
2898                 wreq->wi_val[0] = sc->wi_debug.wi_txsupp;
2899                 break;
2900         case WI_DEBUG_MONITOR:
2901                 wreq->wi_len++;
2902                 wreq->wi_val[0] = sc->wi_debug.wi_monitor;
2903                 break;
2904         case WI_DEBUG_LEDTEST:
2905                 wreq->wi_len += 3;
2906                 wreq->wi_val[0] = sc->wi_debug.wi_ledtest;
2907                 wreq->wi_val[1] = sc->wi_debug.wi_ledtest_param0;
2908                 wreq->wi_val[2] = sc->wi_debug.wi_ledtest_param1;
2909                 break;
2910         case WI_DEBUG_CONTTX:
2911                 wreq->wi_len += 2;
2912                 wreq->wi_val[0] = sc->wi_debug.wi_conttx;
2913                 wreq->wi_val[1] = sc->wi_debug.wi_conttx_param0;
2914                 break;
2915         case WI_DEBUG_CONTRX:
2916                 wreq->wi_len++;
2917                 wreq->wi_val[0] = sc->wi_debug.wi_contrx;
2918                 break;
2919         case WI_DEBUG_SIGSTATE:
2920                 wreq->wi_len += 2;
2921                 wreq->wi_val[0] = sc->wi_debug.wi_sigstate;
2922                 wreq->wi_val[1] = sc->wi_debug.wi_sigstate_param0;
2923                 break;
2924         case WI_DEBUG_CONFBITS:
2925                 wreq->wi_len += 2;
2926                 wreq->wi_val[0] = sc->wi_debug.wi_confbits;
2927                 wreq->wi_val[1] = sc->wi_debug.wi_confbits_param0;
2928                 break;
2929         default:
2930                 error = EIO;
2931                 break;
2932         }
2933
2934         return (error);
2935 }
2936
2937 static int
2938 wi_set_debug(struct wi_softc *sc, struct wi_req *wreq)
2939 {
2940         int error = 0;
2941         u_int16_t               cmd, param0 = 0, param1 = 0;
2942
2943         switch (wreq->wi_type) {
2944         case WI_DEBUG_RESET:
2945         case WI_DEBUG_INIT:
2946         case WI_DEBUG_CALENABLE:
2947                 break;
2948         case WI_DEBUG_SLEEP:
2949                 sc->wi_debug.wi_sleep = 1;
2950                 break;
2951         case WI_DEBUG_WAKE:
2952                 sc->wi_debug.wi_sleep = 0;
2953                 break;
2954         case WI_DEBUG_CHAN:
2955                 param0 = wreq->wi_val[0];
2956                 break;
2957         case WI_DEBUG_DELAYSUPP:
2958                 sc->wi_debug.wi_delaysupp = 1;
2959                 break;
2960         case WI_DEBUG_TXSUPP:
2961                 sc->wi_debug.wi_txsupp = 1;
2962                 break;
2963         case WI_DEBUG_MONITOR:
2964                 sc->wi_debug.wi_monitor = 1;
2965                 break;
2966         case WI_DEBUG_LEDTEST:
2967                 param0 = wreq->wi_val[0];
2968                 param1 = wreq->wi_val[1];
2969                 sc->wi_debug.wi_ledtest = 1;
2970                 sc->wi_debug.wi_ledtest_param0 = param0;
2971                 sc->wi_debug.wi_ledtest_param1 = param1;
2972                 break;
2973         case WI_DEBUG_CONTTX:
2974                 param0 = wreq->wi_val[0];
2975                 sc->wi_debug.wi_conttx = 1;
2976                 sc->wi_debug.wi_conttx_param0 = param0;
2977                 break;
2978         case WI_DEBUG_STOPTEST:
2979                 sc->wi_debug.wi_delaysupp = 0;
2980                 sc->wi_debug.wi_txsupp = 0;
2981                 sc->wi_debug.wi_monitor = 0;
2982                 sc->wi_debug.wi_ledtest = 0;
2983                 sc->wi_debug.wi_ledtest_param0 = 0;
2984                 sc->wi_debug.wi_ledtest_param1 = 0;
2985                 sc->wi_debug.wi_conttx = 0;
2986                 sc->wi_debug.wi_conttx_param0 = 0;
2987                 sc->wi_debug.wi_contrx = 0;
2988                 sc->wi_debug.wi_sigstate = 0;
2989                 sc->wi_debug.wi_sigstate_param0 = 0;
2990                 break;
2991         case WI_DEBUG_CONTRX:
2992                 sc->wi_debug.wi_contrx = 1;
2993                 break;
2994         case WI_DEBUG_SIGSTATE:
2995                 param0 = wreq->wi_val[0];
2996                 sc->wi_debug.wi_sigstate = 1;
2997                 sc->wi_debug.wi_sigstate_param0 = param0;
2998                 break;
2999         case WI_DEBUG_CONFBITS:
3000                 param0 = wreq->wi_val[0];
3001                 param1 = wreq->wi_val[1];
3002                 sc->wi_debug.wi_confbits = param0;
3003                 sc->wi_debug.wi_confbits_param0 = param1;
3004                 break;
3005         default:
3006                 error = EIO;
3007                 break;
3008         }
3009
3010         if (error)
3011                 return (error);
3012
3013         cmd = WI_CMD_DEBUG | (wreq->wi_type << 8);
3014         error = wi_cmd(sc, cmd, param0, param1, 0);
3015
3016         return (error);
3017 }
3018
3019 /*
3020  * Special routines to download firmware for Symbol CF card.
3021  * XXX: This should be modified generic into any PRISM-2 based card.
3022  */
3023
3024 #define WI_SBCF_PDIADDR         0x3100
3025
3026 /* unaligned load little endian */
3027 #define GETLE32(p)      ((p)[0] | ((p)[1]<<8) | ((p)[2]<<16) | ((p)[3]<<24))
3028 #define GETLE16(p)      ((p)[0] | ((p)[1]<<8))
3029
3030 int
3031 wi_symbol_load_firm(struct wi_softc *sc, const void *primsym, int primlen,
3032     const void *secsym, int seclen)
3033 {
3034         uint8_t ebuf[256];
3035         int i;
3036
3037         /* load primary code and run it */
3038         wi_symbol_set_hcr(sc, WI_HCR_EEHOLD);
3039         if (wi_symbol_write_firm(sc, primsym, primlen, NULL, 0))
3040                 return EIO;
3041         wi_symbol_set_hcr(sc, WI_HCR_RUN);
3042         for (i = 0; ; i++) {
3043                 if (i == 10)
3044                         return ETIMEDOUT;
3045                 tsleep(sc, 0, "wiinit", 1);
3046                 if (CSR_READ_2(sc, WI_CNTL) == WI_CNTL_AUX_ENA_STAT)
3047                         break;
3048                 /* write the magic key value to unlock aux port */
3049                 CSR_WRITE_2(sc, WI_PARAM0, WI_AUX_KEY0);
3050                 CSR_WRITE_2(sc, WI_PARAM1, WI_AUX_KEY1);
3051                 CSR_WRITE_2(sc, WI_PARAM2, WI_AUX_KEY2);
3052                 CSR_WRITE_2(sc, WI_CNTL, WI_CNTL_AUX_ENA_CNTL);
3053         }
3054
3055         /* issue read EEPROM command: XXX copied from wi_cmd() */
3056         CSR_WRITE_2(sc, WI_PARAM0, 0);
3057         CSR_WRITE_2(sc, WI_PARAM1, 0);
3058         CSR_WRITE_2(sc, WI_PARAM2, 0);
3059         CSR_WRITE_2(sc, WI_COMMAND, WI_CMD_READEE);
3060         for (i = 0; i < WI_TIMEOUT; i++) {
3061                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_CMD)
3062                         break;
3063                 DELAY(1);
3064         }
3065         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
3066
3067         CSR_WRITE_2(sc, WI_AUX_PAGE, WI_SBCF_PDIADDR / WI_AUX_PGSZ);
3068         CSR_WRITE_2(sc, WI_AUX_OFFSET, WI_SBCF_PDIADDR % WI_AUX_PGSZ);
3069         CSR_READ_MULTI_STREAM_2(sc, WI_AUX_DATA,
3070             (uint16_t *)ebuf, sizeof(ebuf) / 2);
3071         if (GETLE16(ebuf) > sizeof(ebuf))
3072                 return EIO;
3073         if (wi_symbol_write_firm(sc, secsym, seclen, ebuf + 4, GETLE16(ebuf)))
3074                 return EIO;
3075         return 0;
3076 }
3077
3078 static int
3079 wi_symbol_write_firm(struct wi_softc *sc, const void *buf, int buflen,
3080     const void *ebuf, int ebuflen)
3081 {
3082         const uint8_t *p, *ep, *q, *eq;
3083         char *tp;
3084         uint32_t addr, id, eid;
3085         int i, len, elen, nblk, pdrlen;
3086
3087         /*
3088          * Parse the header of the firmware image.
3089          */
3090         p = buf;
3091         ep = p + buflen;
3092         while (p < ep && *p++ != ' ');  /* FILE: */
3093         while (p < ep && *p++ != ' ');  /* filename */
3094         while (p < ep && *p++ != ' ');  /* type of the firmware */
3095         nblk = strtoul(p, &tp, 10);
3096         p = tp;
3097         pdrlen = strtoul(p + 1, &tp, 10);
3098         p = tp;
3099         while (p < ep && *p++ != 0x1a); /* skip rest of header */
3100
3101         /*
3102          * Block records: address[4], length[2], data[length];
3103          */
3104         for (i = 0; i < nblk; i++) {
3105                 addr = GETLE32(p);      p += 4;
3106                 len  = GETLE16(p);      p += 2;
3107                 CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3108                 CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3109                 CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3110                     (const uint16_t *)p, len / 2);
3111                 p += len;
3112         }
3113
3114         /*
3115          * PDR: id[4], address[4], length[4];
3116          */
3117         for (i = 0; i < pdrlen; ) {
3118                 id   = GETLE32(p);      p += 4; i += 4;
3119                 addr = GETLE32(p);      p += 4; i += 4;
3120                 len  = GETLE32(p);      p += 4; i += 4;
3121                 /* replace PDR entry with the values from EEPROM, if any */
3122                 for (q = ebuf, eq = q + ebuflen; q < eq; q += elen * 2) {
3123                         elen = GETLE16(q);      q += 2;
3124                         eid  = GETLE16(q);      q += 2;
3125                         elen--;         /* elen includes eid */
3126                         if (eid == 0)
3127                                 break;
3128                         if (eid != id)
3129                                 continue;
3130                         CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3131                         CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3132                         CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3133                             (const uint16_t *)q, len / 2);
3134                         break;
3135                 }
3136         }
3137         return 0;
3138 }
3139
3140 static int
3141 wi_symbol_set_hcr(struct wi_softc *sc, int mode)
3142 {
3143         uint16_t hcr;
3144
3145         CSR_WRITE_2(sc, WI_COR, WI_COR_RESET);
3146         tsleep(sc, 0, "wiinit", 1);
3147         hcr = CSR_READ_2(sc, WI_HCR);
3148         hcr = (hcr & WI_HCR_4WIRE) | (mode & ~WI_HCR_4WIRE);
3149         CSR_WRITE_2(sc, WI_HCR, hcr);
3150         tsleep(sc, 0, "wiinit", 1);
3151         CSR_WRITE_2(sc, WI_COR, WI_COR_IOMODE);
3152         tsleep(sc, 0, "wiinit", 1);
3153         return 0;
3154 }