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 1.26 2005/06/11 04:26:53 hsu 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 #include <sys/thread2.h>
  84
  85 #include <machine/bus.h>
  86 #include <machine/resource.h>
  87 #include <machine/clock.h>
  88 #include <machine/atomic.h>
  89 #include <sys/rman.h>
  90
  91 #include <net/if.h>
  92 #include <net/if_arp.h>
  93 #include <net/ethernet.h>
  94 #include <net/if_dl.h>
  95 #include <net/if_media.h>
  96 #include <net/if_types.h>
  97 #include <net/ifq_var.h>
  98
  99 #include <netproto/802_11/ieee80211_var.h>
 100 #include <netproto/802_11/ieee80211_ioctl.h>
 101 #include <netproto/802_11/ieee80211_radiotap.h>
 102 #include <netproto/802_11/if_wavelan_ieee.h>
 103
 104 #include <netinet/in.h>
 105 #include <netinet/in_systm.h>
 106 #include <netinet/in_var.h>
 107 #include <netinet/ip.h>
 108 #include <netinet/if_ether.h>
 109
 110 #include <net/bpf.h>
 111
 112 #include <dev/netif/wi/if_wireg.h>
 113 #include <dev/netif/wi/if_wivar.h>
 114
 115 static void wi_start(struct ifnet *);
 116 static int  wi_reset(struct wi_softc *);
 117 static void wi_watchdog(struct ifnet *);
 118 static int  wi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
 119 static int  wi_media_change(struct ifnet *);
 120 static void wi_media_status(struct ifnet *, struct ifmediareq *);
 121
 122 static void wi_rx_intr(struct wi_softc *);
 123 static void wi_tx_intr(struct wi_softc *);
 124 static void wi_tx_ex_intr(struct wi_softc *);
 125 static void wi_info_intr(struct wi_softc *);
 126
 127 static int  wi_get_cfg(struct ifnet *, u_long, caddr_t, struct ucred *);
 128 static int  wi_set_cfg(struct ifnet *, u_long, caddr_t);
 129 static int  wi_write_txrate(struct wi_softc *);
 130 static int  wi_write_wep(struct wi_softc *);
 131 static int  wi_write_multi(struct wi_softc *);
 132 static int  wi_alloc_fid(struct wi_softc *, int, int *);
 133 static void wi_read_nicid(struct wi_softc *);
 134 static int  wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
 135
 136 static int  wi_cmd(struct wi_softc *, int, int, int, int);
 137 static int  wi_seek_bap(struct wi_softc *, int, int);
 138 static int  wi_read_bap(struct wi_softc *, int, int, void *, int);
 139 static int  wi_write_bap(struct wi_softc *, int, int, void *, int);
 140 static int  wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
 141 static int  wi_read_rid(struct wi_softc *, int, void *, int *);
 142 static int  wi_write_rid(struct wi_softc *, int, void *, int);
 143
 144 static int  wi_newstate(struct ieee80211com *, enum ieee80211_state, int);
 145
 146 static int  wi_scan_ap(struct wi_softc *, u_int16_t, u_int16_t);
 147 static void wi_scan_result(struct wi_softc *, int, int);
 148
 149 static void wi_dump_pkt(struct wi_frame *, struct ieee80211_node *, int rssi);
 150
 151 static int wi_get_debug(struct wi_softc *, struct wi_req *);
 152 static int wi_set_debug(struct wi_softc *, struct wi_req *);
 153
 154 /* support to download firmware for symbol CF card */
 155 static int wi_symbol_write_firm(struct wi_softc *, const void *, int,
 156                 const void *, int);
 157 static int wi_symbol_set_hcr(struct wi_softc *, int);
 158 #ifdef DEVICE_POLLING
 159 static void wi_poll(struct ifnet *ifp, enum poll_cmd cmd, int count);
 160 #endif
 161
 162 static __inline int
 163 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val)
 164 {
 165
 166         val = htole16(val);
 167         return wi_write_rid(sc, rid, &val, sizeof(val));
 168 }
 169
 170 SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, "Wireless driver parameters");
 171
 172 static  struct timeval lasttxerror;     /* time of last tx error msg */
 173 static  int curtxeps;                   /* current tx error msgs/sec */
 174 static  int wi_txerate = 0;             /* tx error rate: max msgs/sec */
 175 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate,
 176             0, "max tx error msgs/sec; 0 to disable msgs");
 177
 178 #define WI_DEBUG
 179 #ifdef WI_DEBUG
 180 static  int wi_debug = 0;
 181 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug,
 182             0, "control debugging printfs");
 183
 184 #define DPRINTF(X)      if (wi_debug) printf X
 185 #define DPRINTF2(X)     if (wi_debug > 1) printf X
 186 #define IFF_DUMPPKTS(_ifp) \
 187         (((_ifp)->if_flags & (IFF_DEBUG|IFF_LINK2)) == (IFF_DEBUG|IFF_LINK2))
 188 #else
 189 #define DPRINTF(X)
 190 #define DPRINTF2(X)
 191 #define IFF_DUMPPKTS(_ifp)      0
 192 #endif
 193
 194 #define WI_INTRS        (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
 195
 196 struct wi_card_ident wi_card_ident[] = {
 197         /* CARD_ID                      CARD_NAME               FIRM_TYPE */
 198         { WI_NIC_LUCENT_ID,             WI_NIC_LUCENT_STR,      WI_LUCENT },
 199         { WI_NIC_SONY_ID,               WI_NIC_SONY_STR,        WI_LUCENT },
 200         { WI_NIC_LUCENT_EMB_ID,         WI_NIC_LUCENT_EMB_STR,  WI_LUCENT },
 201         { WI_NIC_EVB2_ID,               WI_NIC_EVB2_STR,        WI_INTERSIL },
 202         { WI_NIC_HWB3763_ID,            WI_NIC_HWB3763_STR,     WI_INTERSIL },
 203         { WI_NIC_HWB3163_ID,            WI_NIC_HWB3163_STR,     WI_INTERSIL },
 204         { WI_NIC_HWB3163B_ID,           WI_NIC_HWB3163B_STR,    WI_INTERSIL },
 205         { WI_NIC_EVB3_ID,               WI_NIC_EVB3_STR,        WI_INTERSIL },
 206         { WI_NIC_HWB1153_ID,            WI_NIC_HWB1153_STR,     WI_INTERSIL },
 207         { WI_NIC_P2_SST_ID,             WI_NIC_P2_SST_STR,      WI_INTERSIL },
 208         { WI_NIC_EVB2_SST_ID,           WI_NIC_EVB2_SST_STR,    WI_INTERSIL },
 209         { WI_NIC_3842_EVA_ID,           WI_NIC_3842_EVA_STR,    WI_INTERSIL },
 210         { WI_NIC_3842_PCMCIA_AMD_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 211         { WI_NIC_3842_PCMCIA_SST_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 212         { WI_NIC_3842_PCMCIA_ATL_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 213         { WI_NIC_3842_PCMCIA_ATS_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
 214         { WI_NIC_3842_MINI_AMD_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 215         { WI_NIC_3842_MINI_SST_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 216         { WI_NIC_3842_MINI_ATL_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 217         { WI_NIC_3842_MINI_ATS_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
 218         { WI_NIC_3842_PCI_AMD_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 219         { WI_NIC_3842_PCI_SST_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 220         { WI_NIC_3842_PCI_ATS_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 221         { WI_NIC_3842_PCI_ATL_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
 222         { WI_NIC_P3_PCMCIA_AMD_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 223         { WI_NIC_P3_PCMCIA_SST_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 224         { WI_NIC_P3_PCMCIA_ATL_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 225         { WI_NIC_P3_PCMCIA_ATS_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
 226         { WI_NIC_P3_MINI_AMD_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 227         { WI_NIC_P3_MINI_SST_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 228         { WI_NIC_P3_MINI_ATL_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 229         { WI_NIC_P3_MINI_ATS_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
 230         { 0,    NULL,   0 },
 231 };
 232
 233 devclass_t wi_devclass;
 234
 235 int
 236 wi_attach(device_t dev)
 237 {
 238         struct wi_softc *sc = device_get_softc(dev);
 239         struct ieee80211com *ic = &sc->sc_ic;
 240         struct ifnet *ifp = &ic->ic_if;
 241         int i, nrates, buflen;
 242         u_int16_t val;
 243         u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE];
 244         struct ieee80211_rateset *rs;
 245         static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = {
 246                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 247         };
 248         int error;
 249
 250         /*
 251          * NB: no locking is needed here; don't put it here
 252          *     unless you can prove it!
 253          */
 254         error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
 255                                wi_intr, sc, &sc->wi_intrhand, NULL);
 256
 257         if (error) {
 258                 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
 259                 wi_free(dev);
 260                 return (error);
 261         }
 262
 263         sc->wi_cmd_count = 500;
 264         /* Reset the NIC. */
 265         if (wi_reset(sc) != 0)
 266                 return ENXIO;           /* XXX */
 267
 268         /*
 269          * Read the station address.
 270          * And do it twice. I've seen PRISM-based cards that return
 271          * an error when trying to read it the first time, which causes
 272          * the probe to fail.
 273          */
 274         buflen = IEEE80211_ADDR_LEN;
 275         error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 276         if (error != 0) {
 277                 buflen = IEEE80211_ADDR_LEN;
 278                 error = wi_read_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, &buflen);
 279         }
 280         if (error || IEEE80211_ADDR_EQ(ic->ic_myaddr, empty_macaddr)) {
 281                 if (error != 0)
 282                         device_printf(dev, "mac read failed %d\n", error);
 283                 else
 284                         device_printf(dev, "mac read failed (all zeros)\n");
 285                 wi_free(dev);
 286                 return (error);
 287         }
 288
 289         /* Read NIC identification */
 290         wi_read_nicid(sc);
 291
 292         ifp->if_softc = sc;
 293         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 294         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 295         ifp->if_ioctl = wi_ioctl;
 296         ifp->if_start = wi_start;
 297         ifp->if_watchdog = wi_watchdog;
 298         ifp->if_init = wi_init;
 299         ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
 300         ifq_set_ready(&ifp->if_snd);
 301 #ifdef DEVICE_POLLING
 302         ifp->if_poll = wi_poll;
 303 #endif
 304         ifp->if_capenable = ifp->if_capabilities;
 305
 306         ic->ic_phytype = IEEE80211_T_DS;
 307         ic->ic_opmode = IEEE80211_M_STA;
 308         ic->ic_caps = IEEE80211_C_PMGT | IEEE80211_C_AHDEMO;
 309         ic->ic_state = IEEE80211_S_INIT;
 310
 311         /*
 312          * Query the card for available channels and setup the
 313          * channel table.  We assume these are all 11b channels.
 314          */
 315         buflen = sizeof(val);
 316         if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
 317                 val = htole16(0x1fff);  /* assume 1-11 */
 318         KASSERT(val != 0, ("wi_attach: no available channels listed!"));
 319
 320         val <<= 1;                      /* shift for base 1 indices */
 321         for (i = 1; i < 16; i++) {
 322                 if (isset((u_int8_t*)&val, i)) {
 323                         ic->ic_channels[i].ic_freq =
 324                                 ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
 325                         ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B;
 326                 }
 327         }
 328
 329         /*
 330          * Read the default channel from the NIC. This may vary
 331          * depending on the country where the NIC was purchased, so
 332          * we can't hard-code a default and expect it to work for
 333          * everyone.
 334          *
 335          * If no channel is specified, let the 802.11 code select.
 336          */
 337         buflen = sizeof(val);
 338         if (wi_read_rid(sc, WI_RID_OWN_CHNL, &val, &buflen) == 0) {
 339                 val = le16toh(val);
 340                 KASSERT(val < IEEE80211_CHAN_MAX &&
 341                         ic->ic_channels[val].ic_flags != 0,
 342                         ("wi_attach: invalid own channel %u!", val));
 343                 ic->ic_ibss_chan = &ic->ic_channels[val];
 344         } else {
 345                 device_printf(dev,
 346                         "WI_RID_OWN_CHNL failed, using first channel!\n");
 347                 ic->ic_ibss_chan = &ic->ic_channels[0];
 348         }
 349
 350         /*
 351          * Set flags based on firmware version.
 352          */
 353         switch (sc->sc_firmware_type) {
 354         case WI_LUCENT:
 355                 sc->sc_ntxbuf = 1;
 356                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 357 #ifdef WI_HERMES_AUTOINC_WAR
 358                 /* XXX: not confirmed, but never seen for recent firmware */
 359                 if (sc->sc_sta_firmware_ver <  40000) {
 360                         sc->sc_flags |= WI_FLAGS_BUG_AUTOINC;
 361                 }
 362 #endif
 363                 if (sc->sc_sta_firmware_ver >= 60000)
 364                         sc->sc_flags |= WI_FLAGS_HAS_MOR;
 365                 if (sc->sc_sta_firmware_ver >= 60006) {
 366                         ic->ic_caps |= IEEE80211_C_IBSS;
 367                         ic->ic_caps |= IEEE80211_C_MONITOR;
 368                 }
 369                 sc->sc_ibss_port = htole16(1);
 370
 371                 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
 372                 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
 373                 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
 374                 break;
 375
 376         case WI_INTERSIL:
 377                 sc->sc_ntxbuf = WI_NTXBUF;
 378                 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR;
 379                 sc->sc_flags |= WI_FLAGS_HAS_ROAMING;
 380                 sc->sc_flags |= WI_FLAGS_HAS_SYSSCALE;
 381                 /*
 382                  * Old firmware are slow, so give peace a chance.
 383                  */
 384                 if (sc->sc_sta_firmware_ver < 10000)
 385                         sc->wi_cmd_count = 5000;
 386                 if (sc->sc_sta_firmware_ver > 10101)
 387                         sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
 388                 if (sc->sc_sta_firmware_ver >= 800) {
 389                         ic->ic_caps |= IEEE80211_C_IBSS;
 390                         ic->ic_caps |= IEEE80211_C_MONITOR;
 391                 }
 392                 /*
 393                  * version 0.8.3 and newer are the only ones that are known
 394                  * to currently work.  Earlier versions can be made to work,
 395                  * at least according to the Linux driver.
 396                  */
 397                 if (sc->sc_sta_firmware_ver >= 803)
 398                         ic->ic_caps |= IEEE80211_C_HOSTAP;
 399                 sc->sc_ibss_port = htole16(0);
 400
 401                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 402                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 403                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 404                 break;
 405
 406         case WI_SYMBOL:
 407                 sc->sc_ntxbuf = 1;
 408                 sc->sc_flags |= WI_FLAGS_HAS_DIVERSITY;
 409                 if (sc->sc_sta_firmware_ver >= 25000)
 410                         ic->ic_caps |= IEEE80211_C_IBSS;
 411                 sc->sc_ibss_port = htole16(4);
 412
 413                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
 414                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
 415                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
 416                 break;
 417         }
 418
 419         /*
 420          * Find out if we support WEP on this card.
 421          */
 422         buflen = sizeof(val);
 423         if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
 424             val != htole16(0))
 425                 ic->ic_caps |= IEEE80211_C_WEP;
 426
 427         /* Find supported rates. */
 428         buflen = sizeof(ratebuf);
 429         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
 430         if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
 431                 nrates = le16toh(*(u_int16_t *)ratebuf);
 432                 if (nrates > IEEE80211_RATE_MAXSIZE)
 433                         nrates = IEEE80211_RATE_MAXSIZE;
 434                 rs->rs_nrates = 0;
 435                 for (i = 0; i < nrates; i++)
 436                         if (ratebuf[2+i])
 437                                 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
 438         } else {
 439                 /* XXX fallback on error? */
 440                 rs->rs_nrates = 0;
 441         }
 442
 443         buflen = sizeof(val);
 444         if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
 445             wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
 446                 sc->sc_dbm_offset = le16toh(val);
 447         }
 448
 449         sc->sc_max_datalen = 2304;
 450         sc->sc_system_scale = 1;
 451         sc->sc_cnfauthmode = IEEE80211_AUTH_OPEN;
 452         sc->sc_roaming_mode = 1;
 453
 454         sc->sc_portnum = WI_DEFAULT_PORT;
 455         sc->sc_authtype = WI_DEFAULT_AUTHTYPE;
 456
 457         bzero(sc->sc_nodename, sizeof(sc->sc_nodename));
 458         sc->sc_nodelen = sizeof(WI_DEFAULT_NODENAME) - 1;
 459         bcopy(WI_DEFAULT_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 460
 461         bzero(sc->sc_net_name, sizeof(sc->sc_net_name));
 462         bcopy(WI_DEFAULT_NETNAME, sc->sc_net_name,
 463             sizeof(WI_DEFAULT_NETNAME) - 1);
 464
 465         /*
 466          * Call MI attach routine.
 467          */
 468         ieee80211_ifattach(ifp);
 469         /* override state transition method */
 470         sc->sc_newstate = ic->ic_newstate;
 471         ic->ic_newstate = wi_newstate;
 472         ieee80211_media_init(ifp, wi_media_change, wi_media_status);
 473
 474         bpfattach_dlt(ifp, DLT_IEEE802_11_RADIO,
 475                 sizeof(struct ieee80211_frame) + sizeof(sc->sc_tx_th),
 476                 &sc->sc_drvbpf);
 477         /*
 478          * Initialize constant fields.
 479          * XXX make header lengths a multiple of 32-bits so subsequent
 480          *     headers are properly aligned; this is a kludge to keep
 481          *     certain applications happy.
 482          *
 483          * NB: the channel is setup each time we transition to the
 484          *     RUN state to avoid filling it in for each frame.
 485          */
 486         sc->sc_tx_th_len = roundup(sizeof(sc->sc_tx_th), sizeof(u_int32_t));
 487         sc->sc_tx_th.wt_ihdr.it_len = htole16(sc->sc_tx_th_len);
 488         sc->sc_tx_th.wt_ihdr.it_present = htole32(WI_TX_RADIOTAP_PRESENT);
 489
 490         sc->sc_rx_th_len = roundup(sizeof(sc->sc_rx_th), sizeof(u_int32_t));
 491         sc->sc_rx_th.wr_ihdr.it_len = htole16(sc->sc_rx_th_len);
 492         sc->sc_rx_th.wr_ihdr.it_present = htole32(WI_RX_RADIOTAP_PRESENT);
 493
 494         return (0);
 495 }
 496
 497 int
 498 wi_detach(device_t dev)
 499 {
 500         struct wi_softc *sc = device_get_softc(dev);
 501         struct ifnet *ifp = &sc->sc_ic.ic_if;
 502         WI_LOCK_DECL();
 503
 504         WI_LOCK(sc);
 505
 506         /* check if device was removed */
 507         sc->wi_gone |= !bus_child_present(dev);
 508
 509         wi_stop(ifp, 0);
 510
 511         ieee80211_ifdetach(ifp);
 512         bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
 513         WI_UNLOCK(sc);
 514         wi_free(dev);
 515         return (0);
 516 }
 517
 518 void
 519 wi_shutdown(device_t dev)
 520 {
 521         struct wi_softc *sc = device_get_softc(dev);
 522
 523         wi_stop(&sc->sc_if, 1);
 524 }
 525
 526 #ifdef DEVICE_POLLING
 527
 528 static void
 529 wi_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
 530 {
 531         struct wi_softc *sc = ifp->if_softc;
 532         uint16_t status;
 533
 534         switch(cmd) {
 535         case POLL_REGISTER:
 536                 /* disable interruptds */
 537                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 538                 break;
 539         case POLL_DEREGISTER:
 540                 /* enable interrupts */
 541                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 542                 break;
 543         default:
 544                 status = CSR_READ_2(sc, WI_EVENT_STAT);
 545
 546                 if (status & WI_EV_RX)
 547                         wi_rx_intr(sc);
 548                 if (status & WI_EV_ALLOC)
 549                         wi_tx_intr(sc);
 550                 if (status & WI_EV_INFO)
 551                         wi_info_intr(sc);
 552
 553                 if (cmd == POLL_AND_CHECK_STATUS) {
 554                         if (status & WI_EV_INFO)
 555                                 wi_info_intr(sc);
 556                 }
 557
 558                 if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 559                     (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 && !ifq_is_empty(&ifp->if_snd)) {
 560                         wi_start(ifp);
 561                 }
 562                 break;
 563         }
 564 }
 565 #endif /* DEVICE_POLLING */
 566
 567 void
 568 wi_intr(void *arg)
 569 {
 570         struct wi_softc *sc = arg;
 571         struct ifnet *ifp = &sc->sc_ic.ic_if;
 572         u_int16_t status;
 573         WI_LOCK_DECL();
 574
 575         if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) {
 576                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 577                 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
 578                 return;
 579         }
 580
 581         WI_LOCK(sc);
 582
 583         /* Disable interrupts. */
 584         CSR_WRITE_2(sc, WI_INT_EN, 0);
 585
 586         status = CSR_READ_2(sc, WI_EVENT_STAT);
 587         if (status & WI_EV_RX)
 588                 wi_rx_intr(sc);
 589         if (status & WI_EV_ALLOC)
 590                 wi_tx_intr(sc);
 591         if (status & WI_EV_TX_EXC)
 592                 wi_tx_ex_intr(sc);
 593         if (status & WI_EV_INFO)
 594                 wi_info_intr(sc);
 595         if ((ifp->if_flags & IFF_OACTIVE) == 0 &&
 596             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0 &&
 597             !ifq_is_empty(&ifp->if_snd))
 598                 wi_start(ifp);
 599
 600         /* Re-enable interrupts. */
 601         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 602
 603         WI_UNLOCK(sc);
 604
 605         return;
 606 }
 607
 608 void
 609 wi_init(void *arg)
 610 {
 611         struct wi_softc *sc = arg;
 612         struct ifnet *ifp = &sc->sc_if;
 613         struct ieee80211com *ic = &sc->sc_ic;
 614         struct wi_joinreq join;
 615         int i;
 616         int error = 0, wasenabled;
 617         WI_LOCK_DECL();
 618
 619         WI_LOCK(sc);
 620
 621         if (sc->wi_gone) {
 622                 WI_UNLOCK(sc);
 623                 return;
 624         }
 625
 626         if ((wasenabled = sc->sc_enabled))
 627                 wi_stop(ifp, 1);
 628         wi_reset(sc);
 629
 630         /* common 802.11 configuration */
 631         ic->ic_flags &= ~IEEE80211_F_IBSSON;
 632         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
 633         switch (ic->ic_opmode) {
 634         case IEEE80211_M_STA:
 635                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_BSS);
 636                 break;
 637         case IEEE80211_M_IBSS:
 638                 wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_ibss_port);
 639                 ic->ic_flags |= IEEE80211_F_IBSSON;
 640                 break;
 641         case IEEE80211_M_AHDEMO:
 642                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 643                 break;
 644         case IEEE80211_M_HOSTAP:
 645                 /*
 646                  * For PRISM cards, override the empty SSID, because in
 647                  * HostAP mode the controller will lock up otherwise.
 648                  */
 649                 if (sc->sc_firmware_type == WI_INTERSIL &&
 650                     ic->ic_des_esslen == 0) {
 651                         ic->ic_des_essid[0] = ' ';
 652                         ic->ic_des_esslen = 1;
 653                 }
 654                 wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_HOSTAP);
 655                 break;
 656         case IEEE80211_M_MONITOR:
 657                 if (sc->sc_firmware_type == WI_LUCENT)
 658                         wi_write_val(sc, WI_RID_PORTTYPE, WI_PORTTYPE_ADHOC);
 659                 wi_cmd(sc, WI_CMD_DEBUG | (WI_TEST_MONITOR << 8), 0, 0, 0);
 660                 break;
 661         }
 662
 663         /* Intersil interprets this RID as joining ESS even in IBSS mode */
 664         if (sc->sc_firmware_type == WI_LUCENT &&
 665             (ic->ic_flags & IEEE80211_F_IBSSON) && ic->ic_des_esslen > 0)
 666                 wi_write_val(sc, WI_RID_CREATE_IBSS, 1);
 667         else
 668                 wi_write_val(sc, WI_RID_CREATE_IBSS, 0);
 669         wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
 670         wi_write_ssid(sc, WI_RID_DESIRED_SSID, ic->ic_des_essid,
 671             ic->ic_des_esslen);
 672         wi_write_val(sc, WI_RID_OWN_CHNL,
 673                 ieee80211_chan2ieee(ic, ic->ic_ibss_chan));
 674         wi_write_ssid(sc, WI_RID_OWN_SSID, ic->ic_des_essid, ic->ic_des_esslen);
 675
 676         IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp));
 677         wi_write_rid(sc, WI_RID_MAC_NODE, ic->ic_myaddr, IEEE80211_ADDR_LEN);
 678
 679         wi_write_val(sc, WI_RID_PM_ENABLED,
 680             (ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0);
 681
 682         /* not yet common 802.11 configuration */
 683         wi_write_val(sc, WI_RID_MAX_DATALEN, sc->sc_max_datalen);
 684         wi_write_val(sc, WI_RID_RTS_THRESH, ic->ic_rtsthreshold);
 685         if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
 686                 wi_write_val(sc, WI_RID_FRAG_THRESH, ic->ic_fragthreshold);
 687
 688         /* driver specific 802.11 configuration */
 689         if (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)
 690                 wi_write_val(sc, WI_RID_SYSTEM_SCALE, sc->sc_system_scale);
 691         if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
 692                 wi_write_val(sc, WI_RID_ROAMING_MODE, sc->sc_roaming_mode);
 693         if (sc->sc_flags & WI_FLAGS_HAS_MOR)
 694                 wi_write_val(sc, WI_RID_MICROWAVE_OVEN, sc->sc_microwave_oven);
 695         wi_write_txrate(sc);
 696         wi_write_ssid(sc, WI_RID_NODENAME, sc->sc_nodename, sc->sc_nodelen);
 697
 698         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
 699             sc->sc_firmware_type == WI_INTERSIL) {
 700                 wi_write_val(sc, WI_RID_OWN_BEACON_INT, ic->ic_lintval);
 701                 wi_write_val(sc, WI_RID_BASIC_RATE, 0x03);   /* 1, 2 */
 702                 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0x0f); /* 1, 2, 5.5, 11 */
 703                 wi_write_val(sc, WI_RID_DTIM_PERIOD, 1);
 704         }
 705
 706         /*
 707          * Initialize promisc mode.
 708          *      Being in the Host-AP mode causes a great
 709          *      deal of pain if primisc mode is set.
 710          *      Therefore we avoid confusing the firmware
 711          *      and always reset promisc mode in Host-AP
 712          *      mode.  Host-AP sees all the packets anyway.
 713          */
 714         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
 715             (ifp->if_flags & IFF_PROMISC) != 0) {
 716                 wi_write_val(sc, WI_RID_PROMISC, 1);
 717         } else {
 718                 wi_write_val(sc, WI_RID_PROMISC, 0);
 719         }
 720
 721         /* Configure WEP. */
 722         if (ic->ic_caps & IEEE80211_C_WEP)
 723                 wi_write_wep(sc);
 724
 725         /* Set multicast filter. */
 726         wi_write_multi(sc);
 727
 728         /* Allocate fids for the card */
 729         if (sc->sc_firmware_type != WI_SYMBOL || !wasenabled) {
 730                 sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
 731                 if (sc->sc_firmware_type == WI_SYMBOL)
 732                         sc->sc_buflen = 1585;   /* XXX */
 733                 for (i = 0; i < sc->sc_ntxbuf; i++) {
 734                         error = wi_alloc_fid(sc, sc->sc_buflen,
 735                             &sc->sc_txd[i].d_fid);
 736                         if (error) {
 737                                 device_printf(sc->sc_dev,
 738                                     "tx buffer allocation failed (error %u)\n",
 739                                     error);
 740                                 goto out;
 741                         }
 742                         sc->sc_txd[i].d_len = 0;
 743                 }
 744         }
 745         sc->sc_txcur = sc->sc_txnext = 0;
 746
 747         /* Enable desired port */
 748         wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
 749
 750         sc->sc_enabled = 1;
 751         ifp->if_flags |= IFF_RUNNING;
 752         ifp->if_flags &= ~IFF_OACTIVE;
 753         if (ic->ic_opmode == IEEE80211_M_AHDEMO ||
 754             ic->ic_opmode == IEEE80211_M_MONITOR ||
 755             ic->ic_opmode == IEEE80211_M_HOSTAP)
 756                 ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
 757
 758         /* Enable interrupts if not polling */
 759 #ifdef DEVICE_POLLING
 760         if ((ifp->if_flags & IFF_POLLING) == 0)
 761 #endif
 762                 CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
 763
 764         if (!wasenabled &&
 765             ic->ic_opmode == IEEE80211_M_HOSTAP &&
 766             sc->sc_firmware_type == WI_INTERSIL) {
 767                 /* XXX: some card need to be re-enabled for hostap */
 768                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
 769                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
 770         }
 771
 772         if (ic->ic_opmode == IEEE80211_M_STA &&
 773             ((ic->ic_flags & IEEE80211_F_DESBSSID) ||
 774             ic->ic_des_chan != IEEE80211_CHAN_ANYC)) {
 775                 memset(&join, 0, sizeof(join));
 776                 if (ic->ic_flags & IEEE80211_F_DESBSSID)
 777                         IEEE80211_ADDR_COPY(&join.wi_bssid, ic->ic_des_bssid);
 778                 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC)
 779                         join.wi_chan = htole16(
 780                                 ieee80211_chan2ieee(ic, ic->ic_des_chan));
 781                 /* Lucent firmware does not support the JOIN RID. */
 782                 if (sc->sc_firmware_type != WI_LUCENT)
 783                         wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
 784         }
 785
 786         WI_UNLOCK(sc);
 787         return;
 788 out:
 789         if (error) {
 790                 if_printf(ifp, "interface not running\n");
 791                 wi_stop(ifp, 1);
 792         }
 793         WI_UNLOCK(sc);
 794         DPRINTF(("wi_init: return %d\n", error));
 795         return;
 796 }
 797
 798 void
 799 wi_stop(struct ifnet *ifp, int disable)
 800 {
 801         struct ieee80211com *ic = (struct ieee80211com *) ifp;
 802         struct wi_softc *sc = ifp->if_softc;
 803         WI_LOCK_DECL();
 804
 805         WI_LOCK(sc);
 806
 807         DELAY(100000);
 808
 809         ifp->if_flags &= ~(IFF_OACTIVE | IFF_RUNNING);
 810         ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
 811         if (sc->sc_enabled && !sc->wi_gone) {
 812                 CSR_WRITE_2(sc, WI_INT_EN, 0);
 813                 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
 814                 if (disable) {
 815 #ifdef __NetBSD__
 816                         if (sc->sc_disable)
 817                                 (*sc->sc_disable)(sc);
 818 #endif
 819                         sc->sc_enabled = 0;
 820                 }
 821         } else if (sc->wi_gone && disable)      /* gone --> not enabled */
 822             sc->sc_enabled = 0;
 823
 824         sc->sc_tx_timer = 0;
 825         sc->sc_scan_timer = 0;
 826         sc->sc_syn_timer = 0;
 827         sc->sc_false_syns = 0;
 828         sc->sc_naps = 0;
 829         ifp->if_timer = 0;
 830
 831         WI_UNLOCK(sc);
 832 }
 833
 834 static void
 835 wi_start(struct ifnet *ifp)
 836 {
 837         struct wi_softc *sc = ifp->if_softc;
 838         struct ieee80211com *ic = &sc->sc_ic;
 839         struct ieee80211_node *ni;
 840         struct ieee80211_frame *wh;
 841         struct mbuf *m0;
 842         struct wi_frame frmhdr;
 843         int cur, fid, off, error;
 844         WI_LOCK_DECL();
 845
 846         WI_LOCK(sc);
 847
 848         if (sc->wi_gone) {
 849                 WI_UNLOCK(sc);
 850                 return;
 851         }
 852         if (sc->sc_flags & WI_FLAGS_OUTRANGE) {
 853                 WI_UNLOCK(sc);
 854                 return;
 855         }
 856
 857         memset(&frmhdr, 0, sizeof(frmhdr));
 858         cur = sc->sc_txnext;
 859         for (;;) {
 860                 IF_POLL(&ic->ic_mgtq, m0);
 861                 if (m0 != NULL) {
 862                         if (sc->sc_txd[cur].d_len != 0) {
 863                                 ifp->if_flags |= IFF_OACTIVE;
 864                                 break;
 865                         }
 866                         IF_DEQUEUE(&ic->ic_mgtq, m0);
 867                         /*
 868                          * Hack!  The referenced node pointer is in the
 869                          * rcvif field of the packet header.  This is
 870                          * placed there by ieee80211_mgmt_output because
 871                          * we need to hold the reference with the frame
 872                          * and there's no other way (other than packet
 873                          * tags which we consider too expensive to use)
 874                          * to pass it along.
 875                          */
 876                         ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
 877                         m0->m_pkthdr.rcvif = NULL;
 878
 879                         m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
 880                             (caddr_t)&frmhdr.wi_ehdr);
 881                         frmhdr.wi_ehdr.ether_type = 0;
 882                         wh = mtod(m0, struct ieee80211_frame *);
 883                 } else {
 884                         if (ic->ic_state != IEEE80211_S_RUN)
 885                                 break;
 886                         m0 = ifq_poll(&ifp->if_snd);
 887                         if (m0 == NULL)
 888                                 break;
 889                         if (sc->sc_txd[cur].d_len != 0) {
 890                                 ifp->if_flags |= IFF_OACTIVE;
 891                                 break;
 892                         }
 893                         m0 = ifq_dequeue(&ifp->if_snd);
 894                         ifp->if_opackets++;
 895                         m_copydata(m0, 0, ETHER_HDR_LEN,
 896                             (caddr_t)&frmhdr.wi_ehdr);
 897                         BPF_MTAP(ifp, m0);
 898
 899                         m0 = ieee80211_encap(ifp, m0, &ni);
 900                         if (m0 == NULL) {
 901                                 ifp->if_oerrors++;
 902                                 continue;
 903                         }
 904                         wh = mtod(m0, struct ieee80211_frame *);
 905                         if (ic->ic_flags & IEEE80211_F_WEPON)
 906                                 wh->i_fc[1] |= IEEE80211_FC1_WEP;
 907
 908                 }
 909
 910                 if (ic->ic_rawbpf != NULL)
 911                         bpf_mtap(ic->ic_rawbpf, m0);
 912
 913                 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 914                 if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
 915                     (wh->i_fc[1] & IEEE80211_FC1_WEP)) {
 916                         if ((m0 = ieee80211_wep_crypt(ifp, m0, 1)) == NULL) {
 917                                 ifp->if_oerrors++;
 918                                 if (ni && ni != ic->ic_bss)
 919                                         ieee80211_free_node(ic, ni);
 920                                 continue;
 921                         }
 922                         frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 923                 }
 924
 925                 if (sc->sc_drvbpf) {
 926                         sc->sc_tx_th.wt_rate =
 927                                 ni->ni_rates.rs_rates[ni->ni_txrate];
 928                         bpf_ptap(sc->sc_drvbpf, m0, &sc->sc_tx_th,
 929                                  sc->sc_tx_th_len);
 930                 }
 931
 932                 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 933                     (caddr_t)&frmhdr.wi_whdr);
 934                 m_adj(m0, sizeof(struct ieee80211_frame));
 935                 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 936                 if (IFF_DUMPPKTS(ifp))
 937                         wi_dump_pkt(&frmhdr, NULL, -1);
 938                 fid = sc->sc_txd[cur].d_fid;
 939                 off = sizeof(frmhdr);
 940                 error = wi_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0
 941                      || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
 942                 m_freem(m0);
 943                 if (ni && ni != ic->ic_bss)
 944                         ieee80211_free_node(ic, ni);
 945                 if (error) {
 946                         ifp->if_oerrors++;
 947                         continue;
 948                 }
 949                 sc->sc_txd[cur].d_len = off;
 950                 if (sc->sc_txcur == cur) {
 951                         if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
 952                                 if_printf(ifp, "xmit failed\n");
 953                                 sc->sc_txd[cur].d_len = 0;
 954                                 continue;
 955                         }
 956                         sc->sc_tx_timer = 5;
 957                         ifp->if_timer = 1;
 958                 }
 959                 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 960         }
 961
 962         WI_UNLOCK(sc);
 963 }
 964
 965 static int
 966 wi_reset(struct wi_softc *sc)
 967 {
 968         struct ieee80211com *ic = &sc->sc_ic;
 969         struct ifnet *ifp = &ic->ic_if;
 970 #define WI_INIT_TRIES 3
 971         int i;
 972         int error = 0;
 973         int tries;
 974
 975         /* Symbol firmware cannot be initialized more than once */
 976         if (sc->sc_firmware_type == WI_SYMBOL && sc->sc_reset)
 977                 return (0);
 978         if (sc->sc_firmware_type == WI_SYMBOL)
 979                 tries = 1;
 980         else
 981                 tries = WI_INIT_TRIES;
 982
 983         for (i = 0; i < tries; i++) {
 984                 if ((error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0)) == 0)
 985                         break;
 986                 DELAY(WI_DELAY * 1000);
 987         }
 988         sc->sc_reset = 1;
 989
 990         if (i == tries) {
 991                 if_printf(ifp, "init failed\n");
 992                 return (error);
 993         }
 994
 995         CSR_WRITE_2(sc, WI_INT_EN, 0);
 996         CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
 997
 998         /* Calibrate timer. */
 999         wi_write_val(sc, WI_RID_TICK_TIME, 8);
1000
1001         return (0);
1002 #undef WI_INIT_TRIES
1003 }
1004
1005 static void
1006 wi_watchdog(struct ifnet *ifp)
1007 {
1008         struct wi_softc *sc = ifp->if_softc;
1009
1010         ifp->if_timer = 0;
1011         if (!sc->sc_enabled)
1012                 return;
1013
1014         if (sc->sc_tx_timer) {
1015                 if (--sc->sc_tx_timer == 0) {
1016                         if_printf(ifp, "device timeout\n");
1017                         ifp->if_oerrors++;
1018                         wi_init(ifp->if_softc);
1019                         return;
1020                 }
1021                 ifp->if_timer = 1;
1022         }
1023
1024         if (sc->sc_scan_timer) {
1025                 if (--sc->sc_scan_timer <= WI_SCAN_WAIT - WI_SCAN_INQWAIT &&
1026                     sc->sc_firmware_type == WI_INTERSIL) {
1027                         DPRINTF(("wi_watchdog: inquire scan\n"));
1028                         wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
1029                 }
1030                 if (sc->sc_scan_timer)
1031                         ifp->if_timer = 1;
1032         }
1033
1034         if (sc->sc_syn_timer) {
1035                 if (--sc->sc_syn_timer == 0) {
1036                         struct ieee80211com *ic = (struct ieee80211com *) ifp;
1037                         DPRINTF2(("wi_watchdog: %d false syns\n",
1038                             sc->sc_false_syns));
1039                         sc->sc_false_syns = 0;
1040                         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1041                         sc->sc_syn_timer = 5;
1042                 }
1043                 ifp->if_timer = 1;
1044         }
1045
1046         /* TODO: rate control */
1047         ieee80211_watchdog(ifp);
1048 }
1049
1050 static int
1051 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1052 {
1053         struct wi_softc *sc = ifp->if_softc;
1054         struct ieee80211com *ic = &sc->sc_ic;
1055         struct ifreq *ifr = (struct ifreq *)data;
1056         struct ieee80211req *ireq;
1057         u_int8_t nodename[IEEE80211_NWID_LEN];
1058         int error = 0;
1059         struct wi_req wreq;
1060         WI_LOCK_DECL();
1061
1062         WI_LOCK(sc);
1063
1064         if (sc->wi_gone) {
1065                 error = ENODEV;
1066                 goto out;
1067         }
1068
1069         switch (cmd) {
1070         case SIOCSIFFLAGS:
1071                 /*
1072                  * Can't do promisc and hostap at the same time.  If all that's
1073                  * changing is the promisc flag, try to short-circuit a call to
1074                  * wi_init() by just setting PROMISC in the hardware.
1075                  */
1076                 if (ifp->if_flags & IFF_UP) {
1077                         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
1078                             ifp->if_flags & IFF_RUNNING) {
1079                                 if (ifp->if_flags & IFF_PROMISC &&
1080                                     !(sc->sc_if_flags & IFF_PROMISC)) {
1081                                         wi_write_val(sc, WI_RID_PROMISC, 1);
1082                                 } else if (!(ifp->if_flags & IFF_PROMISC) &&
1083                                     sc->sc_if_flags & IFF_PROMISC) {
1084                                         wi_write_val(sc, WI_RID_PROMISC, 0);
1085                                 } else {
1086                                         wi_init(sc);
1087                                 }
1088                         } else {
1089                                 wi_init(sc);
1090                         }
1091                 } else {
1092                         if (ifp->if_flags & IFF_RUNNING) {
1093                                 wi_stop(ifp, 1);
1094                         }
1095                         sc->wi_gone = 0;
1096                 }
1097                 sc->sc_if_flags = ifp->if_flags;
1098                 error = 0;
1099                 break;
1100         case SIOCADDMULTI:
1101         case SIOCDELMULTI:
1102                 error = wi_write_multi(sc);
1103                 break;
1104         case SIOCGIFGENERIC:
1105                 error = wi_get_cfg(ifp, cmd, data, cr);
1106                 break;
1107         case SIOCSIFGENERIC:
1108                 error = suser_cred(cr, NULL_CRED_OKAY);
1109                 if (error)
1110                         break;
1111                 error = wi_set_cfg(ifp, cmd, data);
1112                 break;
1113         case SIOCGPRISM2DEBUG:
1114                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1115                 if (error)
1116                         break;
1117                 if (!(ifp->if_flags & IFF_RUNNING) ||
1118                     sc->sc_firmware_type == WI_LUCENT) {
1119                         error = EIO;
1120                         break;
1121                 }
1122                 error = wi_get_debug(sc, &wreq);
1123                 if (error == 0)
1124                         error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
1125                 break;
1126         case SIOCSPRISM2DEBUG:
1127                 if ((error = suser_cred(cr, NULL_CRED_OKAY)))
1128                         goto out;
1129                 error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1130                 if (error)
1131                         break;
1132                 error = wi_set_debug(sc, &wreq);
1133                 break;
1134         case SIOCG80211:
1135                 ireq = (struct ieee80211req *) data;
1136                 switch (ireq->i_type) {
1137                 case IEEE80211_IOC_STATIONNAME:
1138                         ireq->i_len = sc->sc_nodelen + 1;
1139                         error = copyout(sc->sc_nodename, ireq->i_data,
1140                                         ireq->i_len);
1141                         break;
1142                 default:
1143                         error = ieee80211_ioctl(ifp, cmd, data, cr);
1144                         break;
1145                 }
1146                 break;
1147         case SIOCS80211:
1148                 error = suser_cred(cr, NULL_CRED_OKAY);
1149                 if (error)
1150                         break;
1151                 ireq = (struct ieee80211req *) data;
1152                 switch (ireq->i_type) {
1153                 case IEEE80211_IOC_STATIONNAME:
1154                         if (ireq->i_val != 0 ||
1155                             ireq->i_len > IEEE80211_NWID_LEN) {
1156                                 error = EINVAL;
1157                                 break;
1158                         }
1159                         memset(nodename, 0, IEEE80211_NWID_LEN);
1160                         error = copyin(ireq->i_data, nodename, ireq->i_len);
1161                         if (error)
1162                                 break;
1163                         if (sc->sc_enabled) {
1164                                 error = wi_write_ssid(sc, WI_RID_NODENAME,
1165                                         nodename, ireq->i_len);
1166                                 if (error)
1167                                         break;
1168                         }
1169                         memcpy(sc->sc_nodename, nodename, IEEE80211_NWID_LEN);
1170                         sc->sc_nodelen = ireq->i_len;
1171                         break;
1172                 default:
1173                         error = ieee80211_ioctl(ifp, cmd, data, cr);
1174                         break;
1175                 }
1176                 break;
1177         case SIOCSIFCAP:
1178                 if (ifp->if_flags & IFF_RUNNING)
1179                         wi_init(sc);
1180                 break;
1181         default:
1182                 error = ieee80211_ioctl(ifp, cmd, data, cr);
1183                 break;
1184         }
1185         if (error == ENETRESET) {
1186                 if (sc->sc_enabled)
1187                         wi_init(sc);    /* XXX no error return */
1188                 error = 0;
1189         }
1190 out:
1191         WI_UNLOCK(sc);
1192
1193         return (error);
1194 }
1195
1196 static int
1197 wi_media_change(struct ifnet *ifp)
1198 {
1199         struct wi_softc *sc = ifp->if_softc;
1200         int error;
1201
1202         error = ieee80211_media_change(ifp);
1203         if (error == ENETRESET) {
1204                 if (sc->sc_enabled)
1205                         wi_init(sc);    /* XXX no error return */
1206                 error = 0;
1207         }
1208         return error;
1209 }
1210
1211 static void
1212 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
1213 {
1214         struct wi_softc *sc = ifp->if_softc;
1215         struct ieee80211com *ic = &sc->sc_ic;
1216         u_int16_t val;
1217         int rate, len;
1218
1219         if (sc->wi_gone || !sc->sc_enabled) {
1220                 imr->ifm_active = IFM_IEEE80211 | IFM_NONE;
1221                 imr->ifm_status = 0;
1222                 return;
1223         }
1224
1225         imr->ifm_status = IFM_AVALID;
1226         imr->ifm_active = IFM_IEEE80211;
1227         if (ic->ic_state == IEEE80211_S_RUN &&
1228             (sc->sc_flags & WI_FLAGS_OUTRANGE) == 0)
1229                 imr->ifm_status |= IFM_ACTIVE;
1230         len = sizeof(val);
1231         if (wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) != 0)
1232                 rate = 0;
1233         else {
1234                 /* convert to 802.11 rate */
1235                 rate = val * 2;
1236                 if (sc->sc_firmware_type == WI_LUCENT) {
1237                         if (rate == 4 * 2)
1238                                 rate = 11;      /* 5.5Mbps */
1239                         else if (rate == 5 * 2)
1240                                 rate = 22;      /* 11Mbps */
1241                 } else {
1242                         if (rate == 4*2)
1243                                 rate = 11;      /* 5.5Mbps */
1244                         else if (rate == 8*2)
1245                                 rate = 22;      /* 11Mbps */
1246                 }
1247         }
1248         imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B);
1249         switch (ic->ic_opmode) {
1250         case IEEE80211_M_STA:
1251                 break;
1252         case IEEE80211_M_IBSS:
1253                 imr->ifm_active |= IFM_IEEE80211_ADHOC;
1254                 break;
1255         case IEEE80211_M_AHDEMO:
1256                 imr->ifm_active |= IFM_IEEE80211_ADHOC | IFM_FLAG0;
1257                 break;
1258         case IEEE80211_M_HOSTAP:
1259                 imr->ifm_active |= IFM_IEEE80211_HOSTAP;
1260                 break;
1261         case IEEE80211_M_MONITOR:
1262                 imr->ifm_active |= IFM_IEEE80211_MONITOR;
1263                 break;
1264         }
1265 }
1266
1267 static void
1268 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
1269 {
1270         struct ieee80211com *ic = &sc->sc_ic;
1271         struct ieee80211_node *ni = ic->ic_bss;
1272         struct ifnet *ifp = &ic->ic_if;
1273
1274         if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
1275                 return;
1276
1277         DPRINTF(("wi_sync_bssid: bssid %6D -> ", ni->ni_bssid, ":"));
1278         DPRINTF(("%6D ?\n", new_bssid, ":"));
1279
1280         /* In promiscuous mode, the BSSID field is not a reliable
1281          * indicator of the firmware's BSSID. Damp spurious
1282          * change-of-BSSID indications.
1283          */
1284         if ((ifp->if_flags & IFF_PROMISC) != 0 &&
1285             sc->sc_false_syns >= WI_MAX_FALSE_SYNS)
1286                 return;
1287
1288         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1289 }
1290
1291 static void
1292 wi_rx_monitor(struct wi_softc *sc, int fid)
1293 {
1294         struct ieee80211com *ic = &sc->sc_ic;
1295         struct ifnet *ifp = &ic->ic_if;
1296         struct wi_frame *rx_frame;
1297         struct mbuf *m;
1298         int datlen, hdrlen;
1299
1300         /* first allocate mbuf for packet storage */
1301         m = m_getcl(MB_DONTWAIT, MT_DATA, 0);
1302         if (m == NULL) {
1303                 ifp->if_ierrors++;
1304                 return;
1305         }
1306
1307         m->m_pkthdr.rcvif = ifp;
1308
1309         /* now read wi_frame first so we know how much data to read */
1310         if (wi_read_bap(sc, fid, 0, mtod(m, caddr_t), sizeof(*rx_frame))) {
1311                 ifp->if_ierrors++;
1312                 goto done;
1313         }
1314
1315         rx_frame = mtod(m, struct wi_frame *);
1316
1317         switch ((rx_frame->wi_status & WI_STAT_MAC_PORT) >> 8) {
1318         case 7:
1319                 switch (rx_frame->wi_whdr.i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
1320                 case IEEE80211_FC0_TYPE_DATA:
1321                         hdrlen = WI_DATA_HDRLEN;
1322                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1323                         break;
1324                 case IEEE80211_FC0_TYPE_MGT:
1325                         hdrlen = WI_MGMT_HDRLEN;
1326                         datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1327                         break;
1328                 case IEEE80211_FC0_TYPE_CTL:
1329                         /*
1330                          * prism2 cards don't pass control packets
1331                          * down properly or consistently, so we'll only
1332                          * pass down the header.
1333                          */
1334                         hdrlen = WI_CTL_HDRLEN;
1335                         datlen = 0;
1336                         break;
1337                 default:
1338                         if_printf(ifp, "received packet of unknown type "
1339                                 "on port 7\n");
1340                         ifp->if_ierrors++;
1341                         goto done;
1342                 }
1343                 break;
1344         case 0:
1345                 hdrlen = WI_DATA_HDRLEN;
1346                 datlen = rx_frame->wi_dat_len + WI_FCS_LEN;
1347                 break;
1348         default:
1349                 if_printf(ifp, "received packet on invalid "
1350                     "port (wi_status=0x%x)\n", rx_frame->wi_status);
1351                 ifp->if_ierrors++;
1352                 goto done;
1353         }
1354
1355         if (hdrlen + datlen + 2 > MCLBYTES) {
1356                 if_printf(ifp, "oversized packet received "
1357                     "(wi_dat_len=%d, wi_status=0x%x)\n",
1358                     datlen, rx_frame->wi_status);
1359                 ifp->if_ierrors++;
1360                 goto done;
1361         }
1362
1363         if (wi_read_bap(sc, fid, hdrlen, mtod(m, caddr_t) + hdrlen,
1364             datlen + 2) == 0) {
1365                 m->m_pkthdr.len = m->m_len = hdrlen + datlen;
1366                 ifp->if_ipackets++;
1367                 BPF_MTAP(ifp, m);       /* Handle BPF listeners. */
1368         } else
1369                 ifp->if_ierrors++;
1370 done:
1371         m_freem(m);
1372 }
1373
1374 static void
1375 wi_rx_intr(struct wi_softc *sc)
1376 {
1377         struct ieee80211com *ic = &sc->sc_ic;
1378         struct ifnet *ifp = &ic->ic_if;
1379         struct wi_frame frmhdr;
1380         struct mbuf *m;
1381         struct ieee80211_frame *wh;
1382         struct ieee80211_node *ni;
1383         int fid, len, off, rssi;
1384         u_int8_t dir;
1385         u_int16_t status;
1386         u_int32_t rstamp;
1387
1388         fid = CSR_READ_2(sc, WI_RX_FID);
1389
1390         if (sc->wi_debug.wi_monitor) {
1391                 /*
1392                  * If we are in monitor mode just
1393                  * read the data from the device.
1394                  */
1395                 wi_rx_monitor(sc, fid);
1396                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1397                 return;
1398         }
1399
1400         /* First read in the frame header */
1401         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
1402                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1403                 ifp->if_ierrors++;
1404                 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid));
1405                 return;
1406         }
1407
1408         if (IFF_DUMPPKTS(ifp))
1409                 wi_dump_pkt(&frmhdr, NULL, frmhdr.wi_rx_signal);
1410
1411         /*
1412          * Drop undecryptable or packets with receive errors here
1413          */
1414         status = le16toh(frmhdr.wi_status);
1415         if (status & WI_STAT_ERRSTAT) {
1416                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1417                 ifp->if_ierrors++;
1418                 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status));
1419                 return;
1420         }
1421         rssi = frmhdr.wi_rx_signal;
1422         rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
1423             le16toh(frmhdr.wi_rx_tstamp1);
1424
1425         len = le16toh(frmhdr.wi_dat_len);
1426         off = ALIGN(sizeof(struct ieee80211_frame));
1427
1428         /*
1429          * Sometimes the PRISM2.x returns bogusly large frames. Except
1430          * in monitor mode, just throw them away.
1431          */
1432         if (off + len > MCLBYTES) {
1433                 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
1434                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1435                         ifp->if_ierrors++;
1436                         DPRINTF(("wi_rx_intr: oversized packet\n"));
1437                         return;
1438                 } else
1439                         len = 0;
1440         }
1441
1442         m = m_getl(off + len, MB_DONTWAIT, MT_DATA, M_PKTHDR, NULL);
1443         if (m == NULL) {
1444                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1445                 ifp->if_ierrors++;
1446                 DPRINTF(("wi_rx_intr: m_getl failed\n"));
1447                 return;
1448         }
1449
1450         m->m_data += off - sizeof(struct ieee80211_frame);
1451         memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
1452         wi_read_bap(sc, fid, sizeof(frmhdr),
1453             m->m_data + sizeof(struct ieee80211_frame), len);
1454         m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
1455         m->m_pkthdr.rcvif = ifp;
1456
1457         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
1458
1459         if (sc->sc_drvbpf) {
1460                 /* XXX replace divide by table */
1461                 sc->sc_rx_th.wr_rate = frmhdr.wi_rx_rate / 5;
1462                 sc->sc_rx_th.wr_antsignal = frmhdr.wi_rx_signal;
1463                 sc->sc_rx_th.wr_antnoise = frmhdr.wi_rx_silence;
1464                 sc->sc_rx_th.wr_flags = 0;
1465                 if (frmhdr.wi_status & WI_STAT_PCF)
1466                         sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_CFP;
1467                 bpf_ptap(sc->sc_drvbpf, m, &sc->sc_rx_th, sc->sc_rx_th_len);
1468         }
1469
1470         wh = mtod(m, struct ieee80211_frame *);
1471         if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
1472                 /*
1473                  * WEP is decrypted by hardware. Clear WEP bit
1474                  * header for ieee80211_input().
1475                  */
1476                 wh->i_fc[1] &= ~IEEE80211_FC1_WEP;
1477         }
1478
1479         /* synchronize driver's BSSID with firmware's BSSID */
1480         dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
1481         if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
1482                 wi_sync_bssid(sc, wh->i_addr3);
1483
1484         /*
1485          * Locate the node for sender, track state, and
1486          * then pass this node (referenced) up to the 802.11
1487          * layer for its use.  We are required to pass
1488          * something so we fallback to ic_bss when this frame
1489          * is from an unknown sender.
1490          */
1491         if (ic->ic_opmode != IEEE80211_M_STA) {
1492                 ni = ieee80211_find_node(ic, wh->i_addr2);
1493                 if (ni == NULL)
1494                         ni = ieee80211_ref_node(ic->ic_bss);
1495         } else
1496                 ni = ieee80211_ref_node(ic->ic_bss);
1497         /*
1498          * Send frame up for processing.
1499          */
1500         ieee80211_input(ifp, m, ni, rssi, rstamp);
1501         /*
1502          * The frame may have caused the node to be marked for
1503          * reclamation (e.g. in response to a DEAUTH message)
1504          * so use free_node here instead of unref_node.
1505          */
1506         if (ni == ic->ic_bss)
1507                 ieee80211_unref_node(&ni);
1508         else
1509                 ieee80211_free_node(ic, ni);
1510 }
1511
1512 static void
1513 wi_tx_ex_intr(struct wi_softc *sc)
1514 {
1515         struct ieee80211com *ic = &sc->sc_ic;
1516         struct ifnet *ifp = &ic->ic_if;
1517         struct wi_frame frmhdr;
1518         int fid;
1519
1520         fid = CSR_READ_2(sc, WI_TX_CMP_FID);
1521         /* Read in the frame header */
1522         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
1523                 u_int16_t status = le16toh(frmhdr.wi_status);
1524
1525                 /*
1526                  * Spontaneous station disconnects appear as xmit
1527                  * errors.  Don't announce them and/or count them
1528                  * as an output error.
1529                  */
1530                 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
1531                         if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
1532                                 if_printf(ifp, "tx failed");
1533                                 if (status & WI_TXSTAT_RET_ERR)
1534                                         printf(", retry limit exceeded");
1535                                 if (status & WI_TXSTAT_AGED_ERR)
1536                                         printf(", max transmit lifetime exceeded");
1537                                 if (status & WI_TXSTAT_DISCONNECT)
1538                                         printf(", port disconnected");
1539                                 if (status & WI_TXSTAT_FORM_ERR)
1540                                         printf(", invalid format (data len %u src %6D)",
1541                                                 le16toh(frmhdr.wi_dat_len),
1542                                                 frmhdr.wi_ehdr.ether_shost, ":");
1543                                 if (status & ~0xf)
1544                                         printf(", status=0x%x", status);
1545                                 printf("\n");
1546                         }
1547                         ifp->if_oerrors++;
1548                 } else {
1549                         DPRINTF(("port disconnected\n"));
1550                         ifp->if_collisions++;   /* XXX */
1551                 }
1552         } else
1553                 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid));
1554         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
1555 }
1556
1557 static void
1558 wi_tx_intr(struct wi_softc *sc)
1559 {
1560         struct ieee80211com *ic = &sc->sc_ic;
1561         struct ifnet *ifp = &ic->ic_if;
1562         int fid, cur;
1563
1564         if (sc->wi_gone)
1565                 return;
1566
1567         fid = CSR_READ_2(sc, WI_ALLOC_FID);
1568         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
1569
1570         cur = sc->sc_txcur;
1571         if (sc->sc_txd[cur].d_fid != fid) {
1572                 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n",
1573                     fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
1574                 return;
1575         }
1576         sc->sc_tx_timer = 0;
1577         sc->sc_txd[cur].d_len = 0;
1578         sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
1579         if (sc->sc_txd[cur].d_len == 0)
1580                 ifp->if_flags &= ~IFF_OACTIVE;
1581         else {
1582                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
1583                     0, 0)) {
1584                         if_printf(ifp, "xmit failed\n");
1585                         sc->sc_txd[cur].d_len = 0;
1586                 } else {
1587                         sc->sc_tx_timer = 5;
1588                         ifp->if_timer = 1;
1589                 }
1590         }
1591 }
1592
1593 static void
1594 wi_info_intr(struct wi_softc *sc)
1595 {
1596         struct ieee80211com *ic = &sc->sc_ic;
1597         struct ifnet *ifp = &ic->ic_if;
1598         int i, fid, len, off;
1599         u_int16_t ltbuf[2];
1600         u_int16_t stat;
1601         u_int32_t *ptr;
1602
1603         fid = CSR_READ_2(sc, WI_INFO_FID);
1604         wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
1605
1606         switch (le16toh(ltbuf[1])) {
1607
1608         case WI_INFO_LINK_STAT:
1609                 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
1610                 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
1611                 switch (le16toh(stat)) {
1612                 case WI_INFO_LINK_STAT_CONNECTED:
1613                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1614                         if (ic->ic_state == IEEE80211_S_RUN &&
1615                             ic->ic_opmode != IEEE80211_M_IBSS)
1616                                 break;
1617                         /* FALLTHROUGH */
1618                 case WI_INFO_LINK_STAT_AP_CHG:
1619                         ieee80211_new_state(ic, IEEE80211_S_RUN, -1);
1620                         break;
1621                 case WI_INFO_LINK_STAT_AP_INR:
1622                         sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
1623                         break;
1624                 case WI_INFO_LINK_STAT_AP_OOR:
1625                         if (sc->sc_firmware_type == WI_SYMBOL &&
1626                             sc->sc_scan_timer > 0) {
1627                                 if (wi_cmd(sc, WI_CMD_INQUIRE,
1628                                     WI_INFO_HOST_SCAN_RESULTS, 0, 0) != 0)
1629                                         sc->sc_scan_timer = 0;
1630                                 break;
1631                         }
1632                         if (ic->ic_opmode == IEEE80211_M_STA)
1633                                 sc->sc_flags |= WI_FLAGS_OUTRANGE;
1634                         break;
1635                 case WI_INFO_LINK_STAT_DISCONNECTED:
1636                 case WI_INFO_LINK_STAT_ASSOC_FAILED:
1637                         if (ic->ic_opmode == IEEE80211_M_STA)
1638                                 ieee80211_new_state(ic, IEEE80211_S_INIT, -1);
1639                         break;
1640                 }
1641                 break;
1642
1643         case WI_INFO_COUNTERS:
1644                 /* some card versions have a larger stats structure */
1645                 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
1646                 ptr = (u_int32_t *)&sc->sc_stats;
1647                 off = sizeof(ltbuf);
1648                 for (i = 0; i < len; i++, off += 2, ptr++) {
1649                         wi_read_bap(sc, fid, off, &stat, sizeof(stat));
1650 #ifdef WI_HERMES_STATS_WAR
1651                         if (stat & 0xf000)
1652                                 stat = ~stat;
1653 #endif
1654                         *ptr += stat;
1655                 }
1656                 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries +
1657                     sc->sc_stats.wi_tx_multi_retries +
1658                     sc->sc_stats.wi_tx_retry_limit;
1659                 break;
1660
1661         case WI_INFO_SCAN_RESULTS:
1662         case WI_INFO_HOST_SCAN_RESULTS:
1663                 wi_scan_result(sc, fid, le16toh(ltbuf[0]));
1664                 break;
1665
1666         default:
1667                 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid,
1668                     le16toh(ltbuf[1]), le16toh(ltbuf[0])));
1669                 break;
1670         }
1671         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
1672 }
1673
1674 static int
1675 wi_write_multi(struct wi_softc *sc)
1676 {
1677         struct ifnet *ifp = &sc->sc_ic.ic_if;
1678         int n;
1679         struct ifmultiaddr *ifma;
1680         struct wi_mcast mlist;
1681
1682         if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1683 allmulti:
1684                 memset(&mlist, 0, sizeof(mlist));
1685                 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1686                     sizeof(mlist));
1687         }
1688
1689         n = 0;
1690         LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1691                 if (ifma->ifma_addr->sa_family != AF_LINK)
1692                         continue;
1693                 if (n >= 16)
1694                         goto allmulti;
1695                 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
1696                     (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
1697                 n++;
1698         }
1699         return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
1700             IEEE80211_ADDR_LEN * n);
1701 }
1702
1703 static void
1704 wi_read_nicid(struct wi_softc *sc)
1705 {
1706         struct wi_card_ident *id;
1707         char *p;
1708         int len;
1709         u_int16_t ver[4];
1710
1711         /* getting chip identity */
1712         memset(ver, 0, sizeof(ver));
1713         len = sizeof(ver);
1714         wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
1715         device_printf(sc->sc_dev, "using ");
1716
1717         sc->sc_firmware_type = WI_NOTYPE;
1718         for (id = wi_card_ident; id->card_name != NULL; id++) {
1719                 if (le16toh(ver[0]) == id->card_id) {
1720                         printf("%s", id->card_name);
1721                         sc->sc_firmware_type = id->firm_type;
1722                         break;
1723                 }
1724         }
1725         if (sc->sc_firmware_type == WI_NOTYPE) {
1726                 if (le16toh(ver[0]) & 0x8000) {
1727                         printf("Unknown PRISM2 chip");
1728                         sc->sc_firmware_type = WI_INTERSIL;
1729                 } else {
1730                         printf("Unknown Lucent chip");
1731                         sc->sc_firmware_type = WI_LUCENT;
1732                 }
1733         }
1734
1735         /* get primary firmware version (Only Prism chips) */
1736         if (sc->sc_firmware_type != WI_LUCENT) {
1737                 memset(ver, 0, sizeof(ver));
1738                 len = sizeof(ver);
1739                 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
1740                 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
1741                     le16toh(ver[3]) * 100 + le16toh(ver[1]);
1742         }
1743
1744         /* get station firmware version */
1745         memset(ver, 0, sizeof(ver));
1746         len = sizeof(ver);
1747         wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
1748         sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
1749             le16toh(ver[3]) * 100 + le16toh(ver[1]);
1750         if (sc->sc_firmware_type == WI_INTERSIL &&
1751             (sc->sc_sta_firmware_ver == 10102 ||
1752              sc->sc_sta_firmware_ver == 20102)) {
1753                 char ident[12];
1754                 memset(ident, 0, sizeof(ident));
1755                 len = sizeof(ident);
1756                 /* value should be the format like "V2.00-11" */
1757                 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
1758                     *(p = (char *)ident) >= 'A' &&
1759                     p[2] == '.' && p[5] == '-' && p[8] == '\0') {
1760                         sc->sc_firmware_type = WI_SYMBOL;
1761                         sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 +
1762                             (p[3] - '0') * 1000 + (p[4] - '0') * 100 +
1763                             (p[6] - '0') * 10 + (p[7] - '0');
1764                 }
1765         }
1766         printf("\n");
1767         device_printf(sc->sc_dev, "%s Firmware: ",
1768              sc->sc_firmware_type == WI_LUCENT ? "Lucent" :
1769             (sc->sc_firmware_type == WI_SYMBOL ? "Symbol" : "Intersil"));
1770         if (sc->sc_firmware_type != WI_LUCENT)  /* XXX */
1771                 printf("Primary (%u.%u.%u), ",
1772                     sc->sc_pri_firmware_ver / 10000,
1773                     (sc->sc_pri_firmware_ver % 10000) / 100,
1774                     sc->sc_pri_firmware_ver % 100);
1775         printf("Station (%u.%u.%u)\n",
1776             sc->sc_sta_firmware_ver / 10000,
1777             (sc->sc_sta_firmware_ver % 10000) / 100,
1778             sc->sc_sta_firmware_ver % 100);
1779 }
1780
1781 static int
1782 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
1783 {
1784         struct wi_ssid ssid;
1785
1786         if (buflen > IEEE80211_NWID_LEN)
1787                 return ENOBUFS;
1788         memset(&ssid, 0, sizeof(ssid));
1789         ssid.wi_len = htole16(buflen);
1790         memcpy(ssid.wi_ssid, buf, buflen);
1791         return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
1792 }
1793
1794 static int
1795 wi_get_cfg(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1796 {
1797         struct wi_softc *sc = ifp->if_softc;
1798         struct ieee80211com *ic = &sc->sc_ic;
1799         struct ifreq *ifr = (struct ifreq *)data;
1800         struct wi_req wreq;
1801         struct wi_scan_res *res;
1802         size_t reslen;
1803         int len, n, error, mif, val, off, i;
1804
1805         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
1806         if (error)
1807                 return error;
1808         len = (wreq.wi_len - 1) * 2;
1809         if (len < sizeof(u_int16_t))
1810                 return ENOSPC;
1811         if (len > sizeof(wreq.wi_val))
1812                 len = sizeof(wreq.wi_val);
1813
1814         switch (wreq.wi_type) {
1815
1816         case WI_RID_IFACE_STATS:
1817                 memcpy(wreq.wi_val, &sc->sc_stats, sizeof(sc->sc_stats));
1818                 if (len < sizeof(sc->sc_stats))
1819                         error = ENOSPC;
1820                 else
1821                         len = sizeof(sc->sc_stats);
1822                 break;
1823
1824         case WI_RID_ENCRYPTION:
1825         case WI_RID_TX_CRYPT_KEY:
1826         case WI_RID_DEFLT_CRYPT_KEYS:
1827         case WI_RID_TX_RATE:
1828                 return ieee80211_cfgget(ifp, cmd, data, cr);
1829
1830         case WI_RID_MICROWAVE_OVEN:
1831                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_MOR)) {
1832                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1833                             &len);
1834                         break;
1835                 }
1836                 wreq.wi_val[0] = htole16(sc->sc_microwave_oven);
1837                 len = sizeof(u_int16_t);
1838                 break;
1839
1840         case WI_RID_DBM_ADJUST:
1841                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_DBMADJUST)) {
1842                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1843                             &len);
1844                         break;
1845                 }
1846                 wreq.wi_val[0] = htole16(sc->sc_dbm_offset);
1847                 len = sizeof(u_int16_t);
1848                 break;
1849
1850         case WI_RID_ROAMING_MODE:
1851                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_ROAMING)) {
1852                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1853                             &len);
1854                         break;
1855                 }
1856                 wreq.wi_val[0] = htole16(sc->sc_roaming_mode);
1857                 len = sizeof(u_int16_t);
1858                 break;
1859
1860         case WI_RID_SYSTEM_SCALE:
1861                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE)) {
1862                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1863                             &len);
1864                         break;
1865                 }
1866                 wreq.wi_val[0] = htole16(sc->sc_system_scale);
1867                 len = sizeof(u_int16_t);
1868                 break;
1869
1870         case WI_RID_FRAG_THRESH:
1871                 if (sc->sc_enabled && (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)) {
1872                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1873                             &len);
1874                         break;
1875                 }
1876                 wreq.wi_val[0] = htole16(ic->ic_fragthreshold);
1877                 len = sizeof(u_int16_t);
1878                 break;
1879
1880         case WI_RID_READ_APS:
1881                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1882                         return ieee80211_cfgget(ifp, cmd, data, cr);
1883                 if (sc->sc_scan_timer > 0) {
1884                         error = EINPROGRESS;
1885                         break;
1886                 }
1887                 n = sc->sc_naps;
1888                 if (len < sizeof(n)) {
1889                         error = ENOSPC;
1890                         break;
1891                 }
1892                 if (len < sizeof(n) + sizeof(struct wi_apinfo) * n)
1893                         n = (len - sizeof(n)) / sizeof(struct wi_apinfo);
1894                 len = sizeof(n) + sizeof(struct wi_apinfo) * n;
1895                 memcpy(wreq.wi_val, &n, sizeof(n));
1896                 memcpy((caddr_t)wreq.wi_val + sizeof(n), sc->sc_aps,
1897                     sizeof(struct wi_apinfo) * n);
1898                 break;
1899
1900         case WI_RID_PRISM2:
1901                 wreq.wi_val[0] = sc->sc_firmware_type != WI_LUCENT;
1902                 len = sizeof(u_int16_t);
1903                 break;
1904
1905         case WI_RID_MIF:
1906                 mif = wreq.wi_val[0];
1907                 error = wi_cmd(sc, WI_CMD_READMIF, mif, 0, 0);
1908                 val = CSR_READ_2(sc, WI_RESP0);
1909                 wreq.wi_val[0] = val;
1910                 len = sizeof(u_int16_t);
1911                 break;
1912
1913         case WI_RID_ZERO_CACHE:
1914         case WI_RID_PROCFRAME:          /* ignore for compatibility */
1915                 /* XXX ??? */
1916                 break;
1917
1918         case WI_RID_READ_CACHE:
1919                 return ieee80211_cfgget(ifp, cmd, data, cr);
1920
1921         case WI_RID_SCAN_RES:           /* compatibility interface */
1922                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
1923                         return ieee80211_cfgget(ifp, cmd, data, cr);
1924                 if (sc->sc_scan_timer > 0) {
1925                         error = EINPROGRESS;
1926                         break;
1927                 }
1928                 n = sc->sc_naps;
1929                 if (sc->sc_firmware_type == WI_LUCENT) {
1930                         off = 0;
1931                         reslen = WI_WAVELAN_RES_SIZE;
1932                 } else {
1933                         off = sizeof(struct wi_scan_p2_hdr);
1934                         reslen = WI_PRISM2_RES_SIZE;
1935                 }
1936                 if (len < off + reslen * n)
1937                         n = (len - off) / reslen;
1938                 len = off + reslen * n;
1939                 if (off != 0) {
1940                         struct wi_scan_p2_hdr *p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1941                         /*
1942                          * Prepend Prism-specific header.
1943                          */
1944                         if (len < sizeof(struct wi_scan_p2_hdr)) {
1945                                 error = ENOSPC;
1946                                 break;
1947                         }
1948                         p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
1949                         p2->wi_rsvd = 0;
1950                         p2->wi_reason = n;      /* XXX */
1951                 }
1952                 for (i = 0; i < n; i++, off += reslen) {
1953                         const struct wi_apinfo *ap = &sc->sc_aps[i];
1954
1955                         res = (struct wi_scan_res *)((char *)wreq.wi_val + off);
1956                         res->wi_chan = ap->channel;
1957                         res->wi_noise = ap->noise;
1958                         res->wi_signal = ap->signal;
1959                         IEEE80211_ADDR_COPY(res->wi_bssid, ap->bssid);
1960                         res->wi_interval = ap->interval;
1961                         res->wi_capinfo = ap->capinfo;
1962                         res->wi_ssid_len = ap->namelen;
1963                         memcpy(res->wi_ssid, ap->name,
1964                                 IEEE80211_NWID_LEN);
1965                         if (sc->sc_firmware_type != WI_LUCENT) {
1966                                 /* XXX not saved from Prism cards */
1967                                 memset(res->wi_srates, 0,
1968                                         sizeof(res->wi_srates));
1969                                 res->wi_rate = ap->rate;
1970                                 res->wi_rsvd = 0;
1971                         }
1972                 }
1973                 break;
1974
1975         default:
1976                 if (sc->sc_enabled) {
1977                         error = wi_read_rid(sc, wreq.wi_type, wreq.wi_val,
1978                             &len);
1979                         break;
1980                 }
1981                 switch (wreq.wi_type) {
1982                 case WI_RID_MAX_DATALEN:
1983                         wreq.wi_val[0] = htole16(sc->sc_max_datalen);
1984                         len = sizeof(u_int16_t);
1985                         break;
1986                 case WI_RID_RTS_THRESH:
1987                         wreq.wi_val[0] = htole16(ic->ic_rtsthreshold);
1988                         len = sizeof(u_int16_t);
1989                         break;
1990                 case WI_RID_CNFAUTHMODE:
1991                         wreq.wi_val[0] = htole16(sc->sc_cnfauthmode);
1992                         len = sizeof(u_int16_t);
1993                         break;
1994                 case WI_RID_NODENAME:
1995                         if (len < sc->sc_nodelen + sizeof(u_int16_t)) {
1996                                 error = ENOSPC;
1997                                 break;
1998                         }
1999                         len = sc->sc_nodelen + sizeof(u_int16_t);
2000                         wreq.wi_val[0] = htole16((sc->sc_nodelen + 1) / 2);
2001                         memcpy(&wreq.wi_val[1], sc->sc_nodename,
2002                             sc->sc_nodelen);
2003                         break;
2004                 default:
2005                         return ieee80211_cfgget(ifp, cmd, data, cr);
2006                 }
2007                 break;
2008         }
2009         if (error)
2010                 return error;
2011         wreq.wi_len = (len + 1) / 2 + 1;
2012         return copyout(&wreq, ifr->ifr_data, (wreq.wi_len + 1) * 2);
2013 }
2014
2015 static int
2016 wi_set_cfg(struct ifnet *ifp, u_long cmd, caddr_t data)
2017 {
2018         struct wi_softc *sc = ifp->if_softc;
2019         struct ieee80211com *ic = &sc->sc_ic;
2020         struct ifreq *ifr = (struct ifreq *)data;
2021         struct wi_req wreq;
2022         struct mbuf *m;
2023         int i, len, error, mif, val;
2024         struct ieee80211_rateset *rs;
2025
2026         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
2027         if (error)
2028                 return error;
2029         len = wreq.wi_len ? (wreq.wi_len - 1) * 2 : 0;
2030         switch (wreq.wi_type) {
2031         case WI_RID_DBM_ADJUST:
2032                 return ENODEV;
2033
2034         case WI_RID_NODENAME:
2035                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2036                     le16toh(wreq.wi_val[0]) > sizeof(sc->sc_nodename)) {
2037                         error = ENOSPC;
2038                         break;
2039                 }
2040                 if (sc->sc_enabled) {
2041                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2042                             len);
2043                         if (error)
2044                                 break;
2045                 }
2046                 sc->sc_nodelen = le16toh(wreq.wi_val[0]) * 2;
2047                 memcpy(sc->sc_nodename, &wreq.wi_val[1], sc->sc_nodelen);
2048                 break;
2049
2050         case WI_RID_MICROWAVE_OVEN:
2051         case WI_RID_ROAMING_MODE:
2052         case WI_RID_SYSTEM_SCALE:
2053         case WI_RID_FRAG_THRESH:
2054                 if (wreq.wi_type == WI_RID_MICROWAVE_OVEN &&
2055                     (sc->sc_flags & WI_FLAGS_HAS_MOR) == 0)
2056                         break;
2057                 if (wreq.wi_type == WI_RID_ROAMING_MODE &&
2058                     (sc->sc_flags & WI_FLAGS_HAS_ROAMING) == 0)
2059                         break;
2060                 if (wreq.wi_type == WI_RID_SYSTEM_SCALE &&
2061                     (sc->sc_flags & WI_FLAGS_HAS_SYSSCALE) == 0)
2062                         break;
2063                 if (wreq.wi_type == WI_RID_FRAG_THRESH &&
2064                     (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) == 0)
2065                         break;
2066                 /* FALLTHROUGH */
2067         case WI_RID_RTS_THRESH:
2068         case WI_RID_CNFAUTHMODE:
2069         case WI_RID_MAX_DATALEN:
2070                 if (sc->sc_enabled) {
2071                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2072                             sizeof(u_int16_t));
2073                         if (error)
2074                                 break;
2075                 }
2076                 switch (wreq.wi_type) {
2077                 case WI_RID_FRAG_THRESH:
2078                         ic->ic_fragthreshold = le16toh(wreq.wi_val[0]);
2079                         break;
2080                 case WI_RID_RTS_THRESH:
2081                         ic->ic_rtsthreshold = le16toh(wreq.wi_val[0]);
2082                         break;
2083                 case WI_RID_MICROWAVE_OVEN:
2084                         sc->sc_microwave_oven = le16toh(wreq.wi_val[0]);
2085                         break;
2086                 case WI_RID_ROAMING_MODE:
2087                         sc->sc_roaming_mode = le16toh(wreq.wi_val[0]);
2088                         break;
2089                 case WI_RID_SYSTEM_SCALE:
2090                         sc->sc_system_scale = le16toh(wreq.wi_val[0]);
2091                         break;
2092                 case WI_RID_CNFAUTHMODE:
2093                         sc->sc_cnfauthmode = le16toh(wreq.wi_val[0]);
2094                         break;
2095                 case WI_RID_MAX_DATALEN:
2096                         sc->sc_max_datalen = le16toh(wreq.wi_val[0]);
2097                         break;
2098                 }
2099                 break;
2100
2101         case WI_RID_TX_RATE:
2102                 switch (le16toh(wreq.wi_val[0])) {
2103                 case 3:
2104                         ic->ic_fixed_rate = -1;
2105                         break;
2106                 default:
2107                         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
2108                         for (i = 0; i < rs->rs_nrates; i++) {
2109                                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL)
2110                                     / 2 == le16toh(wreq.wi_val[0]))
2111                                         break;
2112                         }
2113                         if (i == rs->rs_nrates)
2114                                 return EINVAL;
2115                         ic->ic_fixed_rate = i;
2116                 }
2117                 if (sc->sc_enabled)
2118                         error = wi_write_txrate(sc);
2119                 break;
2120
2121         case WI_RID_SCAN_APS:
2122                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2123                         error = wi_scan_ap(sc, 0x3fff, 0x000f);
2124                 break;
2125
2126         case WI_RID_SCAN_REQ:           /* compatibility interface */
2127                 if (sc->sc_enabled && ic->ic_opmode != IEEE80211_M_HOSTAP)
2128                         error = wi_scan_ap(sc, wreq.wi_val[0], wreq.wi_val[1]);
2129                 break;
2130
2131         case WI_RID_MGMT_XMIT:
2132                 if (!sc->sc_enabled) {
2133                         error = ENETDOWN;
2134                         break;
2135                 }
2136                 if (ic->ic_mgtq.ifq_len > 5) {
2137                         error = EAGAIN;
2138                         break;
2139                 }
2140                 /* XXX wi_len looks in u_int8_t, not in u_int16_t */
2141                 m = m_devget((char *)&wreq.wi_val, wreq.wi_len, 0, ifp, NULL);
2142                 if (m == NULL) {
2143                         error = ENOMEM;
2144                         break;
2145                 }
2146                 IF_ENQUEUE(&ic->ic_mgtq, m);
2147                 break;
2148
2149         case WI_RID_MIF:
2150                 mif = wreq.wi_val[0];
2151                 val = wreq.wi_val[1];
2152                 error = wi_cmd(sc, WI_CMD_WRITEMIF, mif, val, 0);
2153                 break;
2154
2155         case WI_RID_PROCFRAME:          /* ignore for compatibility */
2156                 break;
2157
2158         case WI_RID_OWN_SSID:
2159                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
2160                     le16toh(wreq.wi_val[0]) > IEEE80211_NWID_LEN) {
2161                         error = ENOSPC;
2162                         break;
2163                 }
2164                 memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
2165                 ic->ic_des_esslen = le16toh(wreq.wi_val[0]) * 2;
2166                 memcpy(ic->ic_des_essid, &wreq.wi_val[1], ic->ic_des_esslen);
2167                 error = ENETRESET;
2168                 break;
2169
2170         default:
2171                 if (sc->sc_enabled) {
2172                         error = wi_write_rid(sc, wreq.wi_type, wreq.wi_val,
2173                             len);
2174                         if (error)
2175                                 break;
2176                 }
2177                 error = ieee80211_cfgset(ifp, cmd, data);
2178                 break;
2179         }
2180         return error;
2181 }
2182
2183 static int
2184 wi_write_txrate(struct wi_softc *sc)
2185 {
2186         struct ieee80211com *ic = &sc->sc_ic;
2187         int i;
2188         u_int16_t rate;
2189
2190         if (ic->ic_fixed_rate < 0)
2191                 rate = 0;       /* auto */
2192         else
2193                 rate = (ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ic->ic_fixed_rate] &
2194                     IEEE80211_RATE_VAL) / 2;
2195
2196         /* rate: 0, 1, 2, 5, 11 */
2197
2198         switch (sc->sc_firmware_type) {
2199         case WI_LUCENT:
2200                 switch (rate) {
2201                 case 0:                 /* auto == 11mbps auto */
2202                         rate = 3;
2203                         break;
2204                 /* case 1, 2 map to 1, 2*/
2205                 case 5:                 /* 5.5Mbps -> 4 */
2206                         rate = 4;
2207                         break;
2208                 case 11:                /* 11mbps -> 5 */
2209                         rate = 5;
2210                         break;
2211                 default:
2212                         break;
2213                 }
2214                 break;
2215         default:
2216                 /* Choose a bit according to this table.
2217                  *
2218                  * bit | data rate
2219                  * ----+-------------------
2220                  * 0   | 1Mbps
2221                  * 1   | 2Mbps
2222                  * 2   | 5.5Mbps
2223                  * 3   | 11Mbps
2224                  */
2225                 for (i = 8; i > 0; i >>= 1) {
2226                         if (rate >= i)
2227                                 break;
2228                 }
2229                 if (i == 0)
2230                         rate = 0xf;     /* auto */
2231                 else
2232                         rate = i;
2233                 break;
2234         }
2235         return wi_write_val(sc, WI_RID_TX_RATE, rate);
2236 }
2237
2238 static int
2239 wi_write_wep(struct wi_softc *sc)
2240 {
2241         struct ieee80211com *ic = &sc->sc_ic;
2242         int error = 0;
2243         int i, keylen;
2244         u_int16_t val;
2245         struct wi_key wkey[IEEE80211_WEP_NKID];
2246
2247         switch (sc->sc_firmware_type) {
2248         case WI_LUCENT:
2249                 val = (ic->ic_flags & IEEE80211_F_WEPON) ? 1 : 0;
2250                 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
2251                 if (error)
2252                         break;
2253                 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, ic->ic_wep_txkey);
2254                 if (error)
2255                         break;
2256                 memset(wkey, 0, sizeof(wkey));
2257                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2258                         keylen = ic->ic_nw_keys[i].wk_len;
2259                         wkey[i].wi_keylen = htole16(keylen);
2260                         memcpy(wkey[i].wi_keydat, ic->ic_nw_keys[i].wk_key,
2261                             keylen);
2262                 }
2263                 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
2264                     wkey, sizeof(wkey));
2265                 break;
2266
2267         case WI_INTERSIL:
2268         case WI_SYMBOL:
2269                 if (ic->ic_flags & IEEE80211_F_WEPON) {
2270                         /*
2271                          * ONLY HWB3163 EVAL-CARD Firmware version
2272                          * less than 0.8 variant2
2273                          *
2274                          *   If promiscuous mode disable, Prism2 chip
2275                          *  does not work with WEP .
2276                          * It is under investigation for details.
2277                          * (ichiro@netbsd.org)
2278                          */
2279                         if (sc->sc_firmware_type == WI_INTERSIL &&
2280                             sc->sc_sta_firmware_ver < 802 ) {
2281                                 /* firm ver < 0.8 variant 2 */
2282                                 wi_write_val(sc, WI_RID_PROMISC, 1);
2283                         }
2284                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2285                             sc->sc_cnfauthmode);
2286                         val = PRIVACY_INVOKED | EXCLUDE_UNENCRYPTED;
2287                         /*
2288                          * Encryption firmware has a bug for HostAP mode.
2289                          */
2290                         if (sc->sc_firmware_type == WI_INTERSIL &&
2291                             ic->ic_opmode == IEEE80211_M_HOSTAP)
2292                                 val |= HOST_ENCRYPT;
2293                 } else {
2294                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
2295                             IEEE80211_AUTH_OPEN);
2296                         val = HOST_ENCRYPT | HOST_DECRYPT;
2297                 }
2298                 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
2299                 if (error)
2300                         break;
2301                 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY,
2302                     ic->ic_wep_txkey);
2303                 if (error)
2304                         break;
2305                 /*
2306                  * It seems that the firmware accept 104bit key only if
2307                  * all the keys have 104bit length.  We get the length of
2308                  * the transmit key and use it for all other keys.
2309                  * Perhaps we should use software WEP for such situation.
2310                  */
2311                 keylen = ic->ic_nw_keys[ic->ic_wep_txkey].wk_len;
2312                 if (keylen > IEEE80211_WEP_KEYLEN)
2313                         keylen = 13;    /* 104bit keys */
2314                 else
2315                         keylen = IEEE80211_WEP_KEYLEN;
2316                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
2317                         error = wi_write_rid(sc, WI_RID_P2_CRYPT_KEY0 + i,
2318                             ic->ic_nw_keys[i].wk_key, keylen);
2319                         if (error)
2320                                 break;
2321                 }
2322                 break;
2323         }
2324         return error;
2325 }
2326
2327 static int
2328 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
2329 {
2330         int                     i, s = 0;
2331         static volatile int count  = 0;
2332
2333         if (sc->wi_gone)
2334                 return (ENODEV);
2335
2336         if (count > 0)
2337                 panic("Hey partner, hold on there!");
2338         count++;
2339
2340         /* wait for the busy bit to clear */
2341         for (i = sc->wi_cmd_count; i > 0; i--) {        /* 500ms */
2342                 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
2343                         break;
2344                 DELAY(1*1000);  /* 1ms */
2345         }
2346         if (i == 0) {
2347                 device_printf(sc->sc_dev, "wi_cmd: busy bit won't clear.\n" );
2348                 sc->wi_gone = 1;
2349                 count--;
2350                 return(ETIMEDOUT);
2351         }
2352
2353         CSR_WRITE_2(sc, WI_PARAM0, val0);
2354         CSR_WRITE_2(sc, WI_PARAM1, val1);
2355         CSR_WRITE_2(sc, WI_PARAM2, val2);
2356         CSR_WRITE_2(sc, WI_COMMAND, cmd);
2357
2358         if (cmd == WI_CMD_INI) {
2359                 /* XXX: should sleep here. */
2360                 DELAY(100*1000);                /* 100ms delay for init */
2361         }
2362         for (i = 0; i < WI_TIMEOUT; i++) {
2363                 /*
2364                  * Wait for 'command complete' bit to be
2365                  * set in the event status register.
2366                  */
2367                 s = CSR_READ_2(sc, WI_EVENT_STAT);
2368                 if (s & WI_EV_CMD) {
2369                         /* Ack the event and read result code. */
2370                         s = CSR_READ_2(sc, WI_STATUS);
2371                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
2372                         if (s & WI_STAT_CMD_RESULT) {
2373                                 count--;
2374                                 return(EIO);
2375                         }
2376                         break;
2377                 }
2378                 DELAY(WI_DELAY);
2379         }
2380
2381         count--;
2382         if (i == WI_TIMEOUT) {
2383                 device_printf(sc->sc_dev,
2384                     "timeout in wi_cmd 0x%04x; event status 0x%04x\n", cmd, s);
2385                 if (s == 0xffff)
2386                         sc->wi_gone = 1;
2387                 return(ETIMEDOUT);
2388         }
2389         return (0);
2390 }
2391
2392 static int
2393 wi_seek_bap(struct wi_softc *sc, int id, int off)
2394 {
2395         int i, status;
2396
2397         CSR_WRITE_2(sc, WI_SEL0, id);
2398         CSR_WRITE_2(sc, WI_OFF0, off);
2399
2400         for (i = 0; ; i++) {
2401                 status = CSR_READ_2(sc, WI_OFF0);
2402                 if ((status & WI_OFF_BUSY) == 0)
2403                         break;
2404                 if (i == WI_TIMEOUT) {
2405                         device_printf(sc->sc_dev, "timeout in wi_seek to %x/%x\n",
2406                             id, off);
2407                         sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2408                         if (status == 0xffff)
2409                                 sc->wi_gone = 1;
2410                         return ETIMEDOUT;
2411                 }
2412                 DELAY(1);
2413         }
2414         if (status & WI_OFF_ERR) {
2415                 device_printf(sc->sc_dev, "failed in wi_seek to %x/%x\n", id, off);
2416                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2417                 return EIO;
2418         }
2419         sc->sc_bap_id = id;
2420         sc->sc_bap_off = off;
2421         return 0;
2422 }
2423
2424 static int
2425 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2426 {
2427         u_int16_t *ptr;
2428         int i, error, cnt;
2429
2430         if (buflen == 0)
2431                 return 0;
2432         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2433                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2434                         return error;
2435         }
2436         cnt = (buflen + 1) / 2;
2437         ptr = (u_int16_t *)buf;
2438         for (i = 0; i < cnt; i++)
2439                 *ptr++ = CSR_READ_2(sc, WI_DATA0);
2440         sc->sc_bap_off += cnt * 2;
2441         return 0;
2442 }
2443
2444 static int
2445 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
2446 {
2447         u_int16_t *ptr;
2448         int i, error, cnt;
2449
2450         if (buflen == 0)
2451                 return 0;
2452
2453 #ifdef WI_HERMES_AUTOINC_WAR
2454   again:
2455 #endif
2456         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
2457                 if ((error = wi_seek_bap(sc, id, off)) != 0)
2458                         return error;
2459         }
2460         cnt = (buflen + 1) / 2;
2461         ptr = (u_int16_t *)buf;
2462         for (i = 0; i < cnt; i++)
2463                 CSR_WRITE_2(sc, WI_DATA0, ptr[i]);
2464         sc->sc_bap_off += cnt * 2;
2465
2466 #ifdef WI_HERMES_AUTOINC_WAR
2467         /*
2468          * According to the comments in the HCF Light code, there is a bug
2469          * in the Hermes (or possibly in certain Hermes firmware revisions)
2470          * where the chip's internal autoincrement counter gets thrown off
2471          * during data writes:  the autoincrement is missed, causing one
2472          * data word to be overwritten and subsequent words to be written to
2473          * the wrong memory locations. The end result is that we could end
2474          * up transmitting bogus frames without realizing it. The workaround
2475          * for this is to write a couple of extra guard words after the end
2476          * of the transfer, then attempt to read then back. If we fail to
2477          * locate the guard words where we expect them, we preform the
2478          * transfer over again.
2479          */
2480         if ((sc->sc_flags & WI_FLAGS_BUG_AUTOINC) && (id & 0xf000) == 0) {
2481                 CSR_WRITE_2(sc, WI_DATA0, 0x1234);
2482                 CSR_WRITE_2(sc, WI_DATA0, 0x5678);
2483                 wi_seek_bap(sc, id, sc->sc_bap_off);
2484                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
2485                 if (CSR_READ_2(sc, WI_DATA0) != 0x1234 ||
2486                     CSR_READ_2(sc, WI_DATA0) != 0x5678) {
2487                         device_printf(sc->sc_dev,
2488                                 "detect auto increment bug, try again\n");
2489                         goto again;
2490                 }
2491         }
2492 #endif
2493         return 0;
2494 }
2495
2496 static int
2497 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
2498 {
2499         int error, len;
2500         struct mbuf *m;
2501
2502         for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
2503                 if (m->m_len == 0)
2504                         continue;
2505
2506                 len = min(m->m_len, totlen);
2507
2508                 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
2509                         m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
2510                         return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
2511                             totlen);
2512                 }
2513
2514                 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
2515                         return error;
2516
2517                 off += m->m_len;
2518                 totlen -= len;
2519         }
2520         return 0;
2521 }
2522
2523 static int
2524 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
2525 {
2526         int i;
2527
2528         if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
2529                 device_printf(sc->sc_dev, "failed to allocate %d bytes on NIC\n",
2530                     len);
2531                 return ENOMEM;
2532         }
2533
2534         for (i = 0; i < WI_TIMEOUT; i++) {
2535                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
2536                         break;
2537                 if (i == WI_TIMEOUT) {
2538                         device_printf(sc->sc_dev, "timeout in alloc\n");
2539                         return ETIMEDOUT;
2540                 }
2541                 DELAY(1);
2542         }
2543         *idp = CSR_READ_2(sc, WI_ALLOC_FID);
2544         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
2545         return 0;
2546 }
2547
2548 static int
2549 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
2550 {
2551         int error, len;
2552         u_int16_t ltbuf[2];
2553
2554         /* Tell the NIC to enter record read mode. */
2555         error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
2556         if (error)
2557                 return error;
2558
2559         error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2560         if (error)
2561                 return error;
2562
2563         if (le16toh(ltbuf[1]) != rid) {
2564                 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n",
2565                     rid, le16toh(ltbuf[1]));
2566                 return EIO;
2567         }
2568         len = (le16toh(ltbuf[0]) - 1) * 2;       /* already got rid */
2569         if (*buflenp < len) {
2570                 device_printf(sc->sc_dev, "record buffer is too small, "
2571                     "rid=%x, size=%d, len=%d\n",
2572                     rid, *buflenp, len);
2573                 return ENOSPC;
2574         }
2575         *buflenp = len;
2576         return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
2577 }
2578
2579 static int
2580 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen)
2581 {
2582         int error;
2583         u_int16_t ltbuf[2];
2584
2585         ltbuf[0] = htole16((buflen + 1) / 2 + 1);        /* includes rid */
2586         ltbuf[1] = htole16(rid);
2587
2588         error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
2589         if (error)
2590                 return error;
2591         error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
2592         if (error)
2593                 return error;
2594
2595         return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
2596 }
2597
2598 static int
2599 wi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
2600 {
2601         struct ifnet *ifp = &ic->ic_if;
2602         struct wi_softc *sc = ifp->if_softc;
2603         struct ieee80211_node *ni = ic->ic_bss;
2604         int buflen;
2605         u_int16_t val;
2606         struct wi_ssid ssid;
2607         u_int8_t old_bssid[IEEE80211_ADDR_LEN];
2608
2609         DPRINTF(("%s: %s -> %s\n", __func__,
2610                 ieee80211_state_name[ic->ic_state],
2611                 ieee80211_state_name[nstate]));
2612
2613         switch (nstate) {
2614         case IEEE80211_S_INIT:
2615                 ic->ic_flags &= ~IEEE80211_F_SIBSS;
2616                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2617                 return (*sc->sc_newstate)(ic, nstate, arg);
2618
2619         case IEEE80211_S_RUN:
2620                 sc->sc_flags &= ~WI_FLAGS_OUTRANGE;
2621                 buflen = IEEE80211_ADDR_LEN;
2622                 wi_read_rid(sc, WI_RID_CURRENT_BSSID, ni->ni_bssid, &buflen);
2623                 IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid);
2624                 buflen = sizeof(val);
2625                 wi_read_rid(sc, WI_RID_CURRENT_CHAN, &val, &buflen);
2626                 /* XXX validate channel */
2627                 ni->ni_chan = &ic->ic_channels[le16toh(val)];
2628                 sc->sc_tx_th.wt_chan_freq = sc->sc_rx_th.wr_chan_freq =
2629                         htole16(ni->ni_chan->ic_freq);
2630                 sc->sc_tx_th.wt_chan_flags = sc->sc_rx_th.wr_chan_flags =
2631                         htole16(ni->ni_chan->ic_flags);
2632
2633                 if (IEEE80211_ADDR_EQ(old_bssid, ni->ni_bssid))
2634                         sc->sc_false_syns++;
2635                 else
2636                         sc->sc_false_syns = 0;
2637
2638                 if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
2639                         ni->ni_esslen = ic->ic_des_esslen;
2640                         memcpy(ni->ni_essid, ic->ic_des_essid, ni->ni_esslen);
2641                         ni->ni_rates = ic->ic_sup_rates[IEEE80211_MODE_11B];
2642                         ni->ni_intval = ic->ic_lintval;
2643                         ni->ni_capinfo = IEEE80211_CAPINFO_ESS;
2644                         if (ic->ic_flags & IEEE80211_F_WEPON)
2645                                 ni->ni_capinfo |= IEEE80211_CAPINFO_PRIVACY;
2646                 } else {
2647                         /* XXX check return value */
2648                         buflen = sizeof(ssid);
2649                         wi_read_rid(sc, WI_RID_CURRENT_SSID, &ssid, &buflen);
2650                         ni->ni_esslen = le16toh(ssid.wi_len);
2651                         if (ni->ni_esslen > IEEE80211_NWID_LEN)
2652                                 ni->ni_esslen = IEEE80211_NWID_LEN;     /*XXX*/
2653                         memcpy(ni->ni_essid, ssid.wi_ssid, ni->ni_esslen);
2654                 }
2655                 break;
2656
2657         case IEEE80211_S_SCAN:
2658         case IEEE80211_S_AUTH:
2659         case IEEE80211_S_ASSOC:
2660                 break;
2661         }
2662
2663         ic->ic_state = nstate;          /* NB: skip normal ieee80211 handling */
2664         return 0;
2665 }
2666
2667 static int
2668 wi_scan_ap(struct wi_softc *sc, u_int16_t chanmask, u_int16_t txrate)
2669 {
2670         int error = 0;
2671         u_int16_t val[2];
2672
2673         if (!sc->sc_enabled)
2674                 return ENXIO;
2675         switch (sc->sc_firmware_type) {
2676         case WI_LUCENT:
2677                 (void)wi_cmd(sc, WI_CMD_INQUIRE, WI_INFO_SCAN_RESULTS, 0, 0);
2678                 break;
2679         case WI_INTERSIL:
2680                 val[0] = chanmask;      /* channel */
2681                 val[1] = txrate;        /* tx rate */
2682                 error = wi_write_rid(sc, WI_RID_SCAN_REQ, val, sizeof(val));
2683                 break;
2684         case WI_SYMBOL:
2685                 /*
2686                  * XXX only supported on 3.x ?
2687                  */
2688                 val[0] = BSCAN_BCAST | BSCAN_ONETIME;
2689                 error = wi_write_rid(sc, WI_RID_BCAST_SCAN_REQ,
2690                     val, sizeof(val[0]));
2691                 break;
2692         }
2693         if (error == 0) {
2694                 sc->sc_scan_timer = WI_SCAN_WAIT;
2695                 sc->sc_ic.ic_if.if_timer = 1;
2696                 DPRINTF(("wi_scan_ap: start scanning, "
2697                         "chamask 0x%x txrate 0x%x\n", chanmask, txrate));
2698         }
2699         return error;
2700 }
2701
2702 static void
2703 wi_scan_result(struct wi_softc *sc, int fid, int cnt)
2704 {
2705 #define N(a)    (sizeof (a) / sizeof (a[0]))
2706         int i, naps, off, szbuf;
2707         struct wi_scan_header ws_hdr;   /* Prism2 header */
2708         struct wi_scan_data_p2 ws_dat;  /* Prism2 scantable*/
2709         struct wi_apinfo *ap;
2710
2711         off = sizeof(u_int16_t) * 2;
2712         memset(&ws_hdr, 0, sizeof(ws_hdr));
2713         switch (sc->sc_firmware_type) {
2714         case WI_INTERSIL:
2715                 wi_read_bap(sc, fid, off, &ws_hdr, sizeof(ws_hdr));
2716                 off += sizeof(ws_hdr);
2717                 szbuf = sizeof(struct wi_scan_data_p2);
2718                 break;
2719         case WI_SYMBOL:
2720                 szbuf = sizeof(struct wi_scan_data_p2) + 6;
2721                 break;
2722         case WI_LUCENT:
2723                 szbuf = sizeof(struct wi_scan_data);
2724                 break;
2725         default:
2726                 device_printf(sc->sc_dev,
2727                         "wi_scan_result: unknown firmware type %u\n",
2728                         sc->sc_firmware_type);
2729                 naps = 0;
2730                 goto done;
2731         }
2732         naps = (cnt * 2 + 2 - off) / szbuf;
2733         if (naps > N(sc->sc_aps))
2734                 naps = N(sc->sc_aps);
2735         sc->sc_naps = naps;
2736         /* Read Data */
2737         ap = sc->sc_aps;
2738         memset(&ws_dat, 0, sizeof(ws_dat));
2739         for (i = 0; i < naps; i++, ap++) {
2740                 wi_read_bap(sc, fid, off, &ws_dat,
2741                     (sizeof(ws_dat) < szbuf ? sizeof(ws_dat) : szbuf));
2742                 DPRINTF2(("wi_scan_result: #%d: off %d bssid %6D\n", i, off,
2743                     ws_dat.wi_bssid, ":"));
2744                 off += szbuf;
2745                 ap->scanreason = le16toh(ws_hdr.wi_reason);
2746                 memcpy(ap->bssid, ws_dat.wi_bssid, sizeof(ap->bssid));
2747                 ap->channel = le16toh(ws_dat.wi_chid);
2748                 ap->signal  = le16toh(ws_dat.wi_signal);
2749                 ap->noise   = le16toh(ws_dat.wi_noise);
2750                 ap->quality = ap->signal - ap->noise;
2751                 ap->capinfo = le16toh(ws_dat.wi_capinfo);
2752                 ap->interval = le16toh(ws_dat.wi_interval);
2753                 ap->rate    = le16toh(ws_dat.wi_rate);
2754                 ap->namelen = le16toh(ws_dat.wi_namelen);
2755                 if (ap->namelen > sizeof(ap->name))
2756                         ap->namelen = sizeof(ap->name);
2757                 memcpy(ap->name, ws_dat.wi_name, ap->namelen);
2758         }
2759 done:
2760         /* Done scanning */
2761         sc->sc_scan_timer = 0;
2762         DPRINTF(("wi_scan_result: scan complete: ap %d\n", naps));
2763 #undef N
2764 }
2765
2766 static void
2767 wi_dump_pkt(struct wi_frame *wh, struct ieee80211_node *ni, int rssi)
2768 {
2769         ieee80211_dump_pkt((u_int8_t *) &wh->wi_whdr, sizeof(wh->wi_whdr),
2770             ni ? ni->ni_rates.rs_rates[ni->ni_txrate] & IEEE80211_RATE_VAL : -1, rssi);
2771         printf(" status 0x%x rx_tstamp1 %u rx_tstamp0 0x%u rx_silence %u\n",
2772                 le16toh(wh->wi_status), le16toh(wh->wi_rx_tstamp1),
2773                 le16toh(wh->wi_rx_tstamp0), wh->wi_rx_silence);
2774         printf(" rx_signal %u rx_rate %u rx_flow %u\n",
2775                 wh->wi_rx_signal, wh->wi_rx_rate, wh->wi_rx_flow);
2776         printf(" tx_rtry %u tx_rate %u tx_ctl 0x%x dat_len %u\n",
2777                 wh->wi_tx_rtry, wh->wi_tx_rate,
2778                 le16toh(wh->wi_tx_ctl), le16toh(wh->wi_dat_len));
2779         printf(" ehdr dst %6D src %6D type 0x%x\n",
2780                 wh->wi_ehdr.ether_dhost, ":", wh->wi_ehdr.ether_shost, ":",
2781                 wh->wi_ehdr.ether_type);
2782 }
2783
2784 int
2785 wi_alloc(device_t dev, int rid)
2786 {
2787         struct wi_softc *sc = device_get_softc(dev);
2788
2789         if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
2790                 sc->iobase_rid = rid;
2791                 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
2792                     &sc->iobase_rid, 0, ~0, (1 << 6),
2793                     rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
2794                 if (!sc->iobase) {
2795                         device_printf(dev, "No I/O space?!\n");
2796                         return (ENXIO);
2797                 }
2798
2799                 sc->wi_io_addr = rman_get_start(sc->iobase);
2800                 sc->wi_btag = rman_get_bustag(sc->iobase);
2801                 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
2802         } else {
2803                 sc->mem_rid = rid;
2804                 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
2805                     &sc->mem_rid, RF_ACTIVE);
2806
2807                 if (!sc->mem) {
2808                         device_printf(dev, "No Mem space on prism2.5?\n");
2809                         return (ENXIO);
2810                 }
2811
2812                 sc->wi_btag = rman_get_bustag(sc->mem);
2813                 sc->wi_bhandle = rman_get_bushandle(sc->mem);
2814         }
2815
2816
2817         sc->irq_rid = 0;
2818         sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
2819             RF_ACTIVE |
2820             ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
2821
2822         if (!sc->irq) {
2823                 wi_free(dev);
2824                 device_printf(dev, "No irq?!\n");
2825                 return (ENXIO);
2826         }
2827
2828         sc->sc_dev = dev;
2829         sc->sc_unit = device_get_unit(dev);
2830
2831         return (0);
2832 }
2833
2834 void
2835 wi_free(device_t dev)
2836 {
2837         struct wi_softc *sc = device_get_softc(dev);
2838
2839         if (sc->iobase != NULL) {
2840                 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
2841                 sc->iobase = NULL;
2842         }
2843         if (sc->irq != NULL) {
2844                 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
2845                 sc->irq = NULL;
2846         }
2847         if (sc->mem != NULL) {
2848                 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
2849                 sc->mem = NULL;
2850         }
2851
2852         return;
2853 }
2854
2855 static int
2856 wi_get_debug(struct wi_softc *sc, struct wi_req *wreq)
2857 {
2858         int error = 0;
2859
2860         wreq->wi_len = 1;
2861
2862         switch (wreq->wi_type) {
2863         case WI_DEBUG_SLEEP:
2864                 wreq->wi_len++;
2865                 wreq->wi_val[0] = sc->wi_debug.wi_sleep;
2866                 break;
2867         case WI_DEBUG_DELAYSUPP:
2868                 wreq->wi_len++;
2869                 wreq->wi_val[0] = sc->wi_debug.wi_delaysupp;
2870                 break;
2871         case WI_DEBUG_TXSUPP:
2872                 wreq->wi_len++;
2873                 wreq->wi_val[0] = sc->wi_debug.wi_txsupp;
2874                 break;
2875         case WI_DEBUG_MONITOR:
2876                 wreq->wi_len++;
2877                 wreq->wi_val[0] = sc->wi_debug.wi_monitor;
2878                 break;
2879         case WI_DEBUG_LEDTEST:
2880                 wreq->wi_len += 3;
2881                 wreq->wi_val[0] = sc->wi_debug.wi_ledtest;
2882                 wreq->wi_val[1] = sc->wi_debug.wi_ledtest_param0;
2883                 wreq->wi_val[2] = sc->wi_debug.wi_ledtest_param1;
2884                 break;
2885         case WI_DEBUG_CONTTX:
2886                 wreq->wi_len += 2;
2887                 wreq->wi_val[0] = sc->wi_debug.wi_conttx;
2888                 wreq->wi_val[1] = sc->wi_debug.wi_conttx_param0;
2889                 break;
2890         case WI_DEBUG_CONTRX:
2891                 wreq->wi_len++;
2892                 wreq->wi_val[0] = sc->wi_debug.wi_contrx;
2893                 break;
2894         case WI_DEBUG_SIGSTATE:
2895                 wreq->wi_len += 2;
2896                 wreq->wi_val[0] = sc->wi_debug.wi_sigstate;
2897                 wreq->wi_val[1] = sc->wi_debug.wi_sigstate_param0;
2898                 break;
2899         case WI_DEBUG_CONFBITS:
2900                 wreq->wi_len += 2;
2901                 wreq->wi_val[0] = sc->wi_debug.wi_confbits;
2902                 wreq->wi_val[1] = sc->wi_debug.wi_confbits_param0;
2903                 break;
2904         default:
2905                 error = EIO;
2906                 break;
2907         }
2908
2909         return (error);
2910 }
2911
2912 static int
2913 wi_set_debug(struct wi_softc *sc, struct wi_req *wreq)
2914 {
2915         int error = 0;
2916         u_int16_t               cmd, param0 = 0, param1 = 0;
2917
2918         switch (wreq->wi_type) {
2919         case WI_DEBUG_RESET:
2920         case WI_DEBUG_INIT:
2921         case WI_DEBUG_CALENABLE:
2922                 break;
2923         case WI_DEBUG_SLEEP:
2924                 sc->wi_debug.wi_sleep = 1;
2925                 break;
2926         case WI_DEBUG_WAKE:
2927                 sc->wi_debug.wi_sleep = 0;
2928                 break;
2929         case WI_DEBUG_CHAN:
2930                 param0 = wreq->wi_val[0];
2931                 break;
2932         case WI_DEBUG_DELAYSUPP:
2933                 sc->wi_debug.wi_delaysupp = 1;
2934                 break;
2935         case WI_DEBUG_TXSUPP:
2936                 sc->wi_debug.wi_txsupp = 1;
2937                 break;
2938         case WI_DEBUG_MONITOR:
2939                 sc->wi_debug.wi_monitor = 1;
2940                 break;
2941         case WI_DEBUG_LEDTEST:
2942                 param0 = wreq->wi_val[0];
2943                 param1 = wreq->wi_val[1];
2944                 sc->wi_debug.wi_ledtest = 1;
2945                 sc->wi_debug.wi_ledtest_param0 = param0;
2946                 sc->wi_debug.wi_ledtest_param1 = param1;
2947                 break;
2948         case WI_DEBUG_CONTTX:
2949                 param0 = wreq->wi_val[0];
2950                 sc->wi_debug.wi_conttx = 1;
2951                 sc->wi_debug.wi_conttx_param0 = param0;
2952                 break;
2953         case WI_DEBUG_STOPTEST:
2954                 sc->wi_debug.wi_delaysupp = 0;
2955                 sc->wi_debug.wi_txsupp = 0;
2956                 sc->wi_debug.wi_monitor = 0;
2957                 sc->wi_debug.wi_ledtest = 0;
2958                 sc->wi_debug.wi_ledtest_param0 = 0;
2959                 sc->wi_debug.wi_ledtest_param1 = 0;
2960                 sc->wi_debug.wi_conttx = 0;
2961                 sc->wi_debug.wi_conttx_param0 = 0;
2962                 sc->wi_debug.wi_contrx = 0;
2963                 sc->wi_debug.wi_sigstate = 0;
2964                 sc->wi_debug.wi_sigstate_param0 = 0;
2965                 break;
2966         case WI_DEBUG_CONTRX:
2967                 sc->wi_debug.wi_contrx = 1;
2968                 break;
2969         case WI_DEBUG_SIGSTATE:
2970                 param0 = wreq->wi_val[0];
2971                 sc->wi_debug.wi_sigstate = 1;
2972                 sc->wi_debug.wi_sigstate_param0 = param0;
2973                 break;
2974         case WI_DEBUG_CONFBITS:
2975                 param0 = wreq->wi_val[0];
2976                 param1 = wreq->wi_val[1];
2977                 sc->wi_debug.wi_confbits = param0;
2978                 sc->wi_debug.wi_confbits_param0 = param1;
2979                 break;
2980         default:
2981                 error = EIO;
2982                 break;
2983         }
2984
2985         if (error)
2986                 return (error);
2987
2988         cmd = WI_CMD_DEBUG | (wreq->wi_type << 8);
2989         error = wi_cmd(sc, cmd, param0, param1, 0);
2990
2991         return (error);
2992 }
2993
2994 /*
2995  * Special routines to download firmware for Symbol CF card.
2996  * XXX: This should be modified generic into any PRISM-2 based card.
2997  */
2998
2999 #define WI_SBCF_PDIADDR         0x3100
3000
3001 /* unaligned load little endian */
3002 #define GETLE32(p)      ((p)[0] | ((p)[1]<<8) | ((p)[2]<<16) | ((p)[3]<<24))
3003 #define GETLE16(p)      ((p)[0] | ((p)[1]<<8))
3004
3005 int
3006 wi_symbol_load_firm(struct wi_softc *sc, const void *primsym, int primlen,
3007     const void *secsym, int seclen)
3008 {
3009         uint8_t ebuf[256];
3010         int i;
3011
3012         /* load primary code and run it */
3013         wi_symbol_set_hcr(sc, WI_HCR_EEHOLD);
3014         if (wi_symbol_write_firm(sc, primsym, primlen, NULL, 0))
3015                 return EIO;
3016         wi_symbol_set_hcr(sc, WI_HCR_RUN);
3017         for (i = 0; ; i++) {
3018                 if (i == 10)
3019                         return ETIMEDOUT;
3020                 tsleep(sc, 0, "wiinit", 1);
3021                 if (CSR_READ_2(sc, WI_CNTL) == WI_CNTL_AUX_ENA_STAT)
3022                         break;
3023                 /* write the magic key value to unlock aux port */
3024                 CSR_WRITE_2(sc, WI_PARAM0, WI_AUX_KEY0);
3025                 CSR_WRITE_2(sc, WI_PARAM1, WI_AUX_KEY1);
3026                 CSR_WRITE_2(sc, WI_PARAM2, WI_AUX_KEY2);
3027                 CSR_WRITE_2(sc, WI_CNTL, WI_CNTL_AUX_ENA_CNTL);
3028         }
3029
3030         /* issue read EEPROM command: XXX copied from wi_cmd() */
3031         CSR_WRITE_2(sc, WI_PARAM0, 0);
3032         CSR_WRITE_2(sc, WI_PARAM1, 0);
3033         CSR_WRITE_2(sc, WI_PARAM2, 0);
3034         CSR_WRITE_2(sc, WI_COMMAND, WI_CMD_READEE);
3035         for (i = 0; i < WI_TIMEOUT; i++) {
3036                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_CMD)
3037                         break;
3038                 DELAY(1);
3039         }
3040         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
3041
3042         CSR_WRITE_2(sc, WI_AUX_PAGE, WI_SBCF_PDIADDR / WI_AUX_PGSZ);
3043         CSR_WRITE_2(sc, WI_AUX_OFFSET, WI_SBCF_PDIADDR % WI_AUX_PGSZ);
3044         CSR_READ_MULTI_STREAM_2(sc, WI_AUX_DATA,
3045             (uint16_t *)ebuf, sizeof(ebuf) / 2);
3046         if (GETLE16(ebuf) > sizeof(ebuf))
3047                 return EIO;
3048         if (wi_symbol_write_firm(sc, secsym, seclen, ebuf + 4, GETLE16(ebuf)))
3049                 return EIO;
3050         return 0;
3051 }
3052
3053 static int
3054 wi_symbol_write_firm(struct wi_softc *sc, const void *buf, int buflen,
3055     const void *ebuf, int ebuflen)
3056 {
3057         const uint8_t *p, *ep, *q, *eq;
3058         char *tp;
3059         uint32_t addr, id, eid;
3060         int i, len, elen, nblk, pdrlen;
3061
3062         /*
3063          * Parse the header of the firmware image.
3064          */
3065         p = buf;
3066         ep = p + buflen;
3067         while (p < ep && *p++ != ' ');  /* FILE: */
3068         while (p < ep && *p++ != ' ');  /* filename */
3069         while (p < ep && *p++ != ' ');  /* type of the firmware */
3070         nblk = strtoul(p, &tp, 10);
3071         p = tp;
3072         pdrlen = strtoul(p + 1, &tp, 10);
3073         p = tp;
3074         while (p < ep && *p++ != 0x1a); /* skip rest of header */
3075
3076         /*
3077          * Block records: address[4], length[2], data[length];
3078          */
3079         for (i = 0; i < nblk; i++) {
3080                 addr = GETLE32(p);      p += 4;
3081                 len  = GETLE16(p);      p += 2;
3082                 CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3083                 CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3084                 CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3085                     (const uint16_t *)p, len / 2);
3086                 p += len;
3087         }
3088
3089         /*
3090          * PDR: id[4], address[4], length[4];
3091          */
3092         for (i = 0; i < pdrlen; ) {
3093                 id   = GETLE32(p);      p += 4; i += 4;
3094                 addr = GETLE32(p);      p += 4; i += 4;
3095                 len  = GETLE32(p);      p += 4; i += 4;
3096                 /* replace PDR entry with the values from EEPROM, if any */
3097                 for (q = ebuf, eq = q + ebuflen; q < eq; q += elen * 2) {
3098                         elen = GETLE16(q);      q += 2;
3099                         eid  = GETLE16(q);      q += 2;
3100                         elen--;         /* elen includes eid */
3101                         if (eid == 0)
3102                                 break;
3103                         if (eid != id)
3104                                 continue;
3105                         CSR_WRITE_2(sc, WI_AUX_PAGE, addr / WI_AUX_PGSZ);
3106                         CSR_WRITE_2(sc, WI_AUX_OFFSET, addr % WI_AUX_PGSZ);
3107                         CSR_WRITE_MULTI_STREAM_2(sc, WI_AUX_DATA,
3108                             (const uint16_t *)q, len / 2);
3109                         break;
3110                 }
3111         }
3112         return 0;
3113 }
3114
3115 static int
3116 wi_symbol_set_hcr(struct wi_softc *sc, int mode)
3117 {
3118         uint16_t hcr;
3119
3120         CSR_WRITE_2(sc, WI_COR, WI_COR_RESET);
3121         tsleep(sc, 0, "wiinit", 1);
3122         hcr = CSR_READ_2(sc, WI_HCR);
3123         hcr = (hcr & WI_HCR_4WIRE) | (mode & ~WI_HCR_4WIRE);
3124         CSR_WRITE_2(sc, WI_HCR, hcr);
3125         tsleep(sc, 0, "wiinit", 1);
3126         CSR_WRITE_2(sc, WI_COR, WI_COR_IOMODE);
3127         tsleep(sc, 0, "wiinit", 1);
3128         return 0;
3129 }