The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/wi/if_wi.c

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    1 /*-
    2  * Copyright (c) 1997, 1998, 1999
    3  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. All advertising materials mentioning features or use of this software
   14  *    must display the following acknowledgement:
   15  *      This product includes software developed by Bill Paul.
   16  * 4. Neither the name of the author nor the names of any co-contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
   24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   30  * THE POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 /*
   34  * Lucent WaveLAN/IEEE 802.11 PCMCIA driver.
   35  *
   36  * Original FreeBSD driver written by Bill Paul <wpaul@ctr.columbia.edu>
   37  * Electrical Engineering Department
   38  * Columbia University, New York City
   39  */
   40 
   41 /*
   42  * The WaveLAN/IEEE adapter is the second generation of the WaveLAN
   43  * from Lucent. Unlike the older cards, the new ones are programmed
   44  * entirely via a firmware-driven controller called the Hermes.
   45  * Unfortunately, Lucent will not release the Hermes programming manual
   46  * without an NDA (if at all). What they do release is an API library
   47  * called the HCF (Hardware Control Functions) which is supposed to
   48  * do the device-specific operations of a device driver for you. The
   49  * publically available version of the HCF library (the 'HCF Light') is 
   50  * a) extremely gross, b) lacks certain features, particularly support
   51  * for 802.11 frames, and c) is contaminated by the GNU Public License.
   52  *
   53  * This driver does not use the HCF or HCF Light at all. Instead, it
   54  * programs the Hermes controller directly, using information gleaned
   55  * from the HCF Light code and corresponding documentation.
   56  *
   57  * This driver supports the ISA, PCMCIA and PCI versions of the Lucent
   58  * WaveLan cards (based on the Hermes chipset), as well as the newer
   59  * Prism 2 chipsets with firmware from Intersil and Symbol.
   60  */
   61 
   62 #include <sys/cdefs.h>
   63 __FBSDID("$FreeBSD: head/sys/dev/wi/if_wi.c 283540 2015-05-25 19:53:29Z glebius $");
   64 
   65 #include "opt_wlan.h"
   66 
   67 #define WI_HERMES_STATS_WAR     /* Work around stats counter bug. */
   68 
   69 #include <sys/param.h>
   70 #include <sys/systm.h>
   71 #include <sys/endian.h>
   72 #include <sys/sockio.h>
   73 #include <sys/mbuf.h>
   74 #include <sys/priv.h>
   75 #include <sys/proc.h>
   76 #include <sys/kernel.h>
   77 #include <sys/socket.h>
   78 #include <sys/module.h>
   79 #include <sys/bus.h>
   80 #include <sys/random.h>
   81 #include <sys/syslog.h>
   82 #include <sys/sysctl.h>
   83 
   84 #include <machine/bus.h>
   85 #include <machine/resource.h>
   86 #include <machine/atomic.h>
   87 #include <sys/rman.h>
   88 
   89 #include <net/if.h>
   90 #include <net/if_var.h>
   91 #include <net/if_arp.h>
   92 #include <net/ethernet.h>
   93 #include <net/if_dl.h>
   94 #include <net/if_llc.h>
   95 #include <net/if_media.h>
   96 #include <net/if_types.h>
   97 
   98 #include <net80211/ieee80211_var.h>
   99 #include <net80211/ieee80211_ioctl.h>
  100 #include <net80211/ieee80211_radiotap.h>
  101 
  102 #include <netinet/in.h>
  103 #include <netinet/in_systm.h>
  104 #include <netinet/in_var.h>
  105 #include <netinet/ip.h>
  106 #include <netinet/if_ether.h>
  107 
  108 #include <net/bpf.h>
  109 
  110 #include <dev/wi/if_wavelan_ieee.h>
  111 #include <dev/wi/if_wireg.h>
  112 #include <dev/wi/if_wivar.h>
  113 
  114 static struct ieee80211vap *wi_vap_create(struct ieee80211com *,
  115                     const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
  116                     const uint8_t [IEEE80211_ADDR_LEN],
  117                     const uint8_t [IEEE80211_ADDR_LEN]);
  118 static void wi_vap_delete(struct ieee80211vap *vap);
  119 static void wi_stop_locked(struct wi_softc *sc, int disable);
  120 static void wi_start_locked(struct ifnet *);
  121 static void wi_start(struct ifnet *);
  122 static int  wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr,
  123                 struct mbuf *m0);
  124 static int  wi_raw_xmit(struct ieee80211_node *, struct mbuf *,
  125                 const struct ieee80211_bpf_params *);
  126 static int  wi_newstate_sta(struct ieee80211vap *, enum ieee80211_state, int);
  127 static int  wi_newstate_hostap(struct ieee80211vap *, enum ieee80211_state,
  128                 int);
  129 static void wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
  130                 int subtype, const struct ieee80211_rx_stats *rxs,
  131                 int rssi, int nf);
  132 static int  wi_reset(struct wi_softc *);
  133 static void wi_watchdog(void *);
  134 static int  wi_ioctl(struct ifnet *, u_long, caddr_t);
  135 static void wi_media_status(struct ifnet *, struct ifmediareq *);
  136 static uint64_t wi_get_counter(struct ifnet *, ift_counter);
  137 
  138 static void wi_rx_intr(struct wi_softc *);
  139 static void wi_tx_intr(struct wi_softc *);
  140 static void wi_tx_ex_intr(struct wi_softc *);
  141 
  142 static void wi_info_intr(struct wi_softc *);
  143 
  144 static int  wi_write_txrate(struct wi_softc *, struct ieee80211vap *);
  145 static int  wi_write_wep(struct wi_softc *, struct ieee80211vap *);
  146 static int  wi_write_multi(struct wi_softc *);
  147 static void wi_update_mcast(struct ieee80211com *);
  148 static void wi_update_promisc(struct ieee80211com *);
  149 static int  wi_alloc_fid(struct wi_softc *, int, int *);
  150 static void wi_read_nicid(struct wi_softc *);
  151 static int  wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
  152 
  153 static int  wi_cmd(struct wi_softc *, int, int, int, int);
  154 static int  wi_seek_bap(struct wi_softc *, int, int);
  155 static int  wi_read_bap(struct wi_softc *, int, int, void *, int);
  156 static int  wi_write_bap(struct wi_softc *, int, int, void *, int);
  157 static int  wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
  158 static int  wi_read_rid(struct wi_softc *, int, void *, int *);
  159 static int  wi_write_rid(struct wi_softc *, int, void *, int);
  160 static int  wi_write_appie(struct wi_softc *, int, const struct ieee80211_appie *);
  161 
  162 static void wi_scan_start(struct ieee80211com *);
  163 static void wi_scan_end(struct ieee80211com *);
  164 static void wi_set_channel(struct ieee80211com *);
  165         
  166 static __inline int
  167 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val)
  168 {
  169 
  170         val = htole16(val);
  171         return wi_write_rid(sc, rid, &val, sizeof(val));
  172 }
  173 
  174 static SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0,
  175             "Wireless driver parameters");
  176 
  177 static  struct timeval lasttxerror;     /* time of last tx error msg */
  178 static  int curtxeps;                   /* current tx error msgs/sec */
  179 static  int wi_txerate = 0;             /* tx error rate: max msgs/sec */
  180 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate,
  181             0, "max tx error msgs/sec; 0 to disable msgs");
  182 
  183 #define WI_DEBUG
  184 #ifdef WI_DEBUG
  185 static  int wi_debug = 0;
  186 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug,
  187             0, "control debugging printfs");
  188 #define DPRINTF(X)      if (wi_debug) printf X
  189 #else
  190 #define DPRINTF(X)
  191 #endif
  192 
  193 #define WI_INTRS        (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
  194 
  195 struct wi_card_ident wi_card_ident[] = {
  196         /* CARD_ID                      CARD_NAME               FIRM_TYPE */
  197         { WI_NIC_LUCENT_ID,             WI_NIC_LUCENT_STR,      WI_LUCENT },
  198         { WI_NIC_SONY_ID,               WI_NIC_SONY_STR,        WI_LUCENT },
  199         { WI_NIC_LUCENT_EMB_ID,         WI_NIC_LUCENT_EMB_STR,  WI_LUCENT },
  200         { WI_NIC_EVB2_ID,               WI_NIC_EVB2_STR,        WI_INTERSIL },
  201         { WI_NIC_HWB3763_ID,            WI_NIC_HWB3763_STR,     WI_INTERSIL },
  202         { WI_NIC_HWB3163_ID,            WI_NIC_HWB3163_STR,     WI_INTERSIL },
  203         { WI_NIC_HWB3163B_ID,           WI_NIC_HWB3163B_STR,    WI_INTERSIL },
  204         { WI_NIC_EVB3_ID,               WI_NIC_EVB3_STR,        WI_INTERSIL },
  205         { WI_NIC_HWB1153_ID,            WI_NIC_HWB1153_STR,     WI_INTERSIL },
  206         { WI_NIC_P2_SST_ID,             WI_NIC_P2_SST_STR,      WI_INTERSIL },
  207         { WI_NIC_EVB2_SST_ID,           WI_NIC_EVB2_SST_STR,    WI_INTERSIL },
  208         { WI_NIC_3842_EVA_ID,           WI_NIC_3842_EVA_STR,    WI_INTERSIL },
  209         { WI_NIC_3842_PCMCIA_AMD_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
  210         { WI_NIC_3842_PCMCIA_SST_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
  211         { WI_NIC_3842_PCMCIA_ATL_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
  212         { WI_NIC_3842_PCMCIA_ATS_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
  213         { WI_NIC_3842_MINI_AMD_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
  214         { WI_NIC_3842_MINI_SST_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
  215         { WI_NIC_3842_MINI_ATL_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
  216         { WI_NIC_3842_MINI_ATS_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
  217         { WI_NIC_3842_PCI_AMD_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
  218         { WI_NIC_3842_PCI_SST_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
  219         { WI_NIC_3842_PCI_ATS_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
  220         { WI_NIC_3842_PCI_ATL_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
  221         { WI_NIC_P3_PCMCIA_AMD_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
  222         { WI_NIC_P3_PCMCIA_SST_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
  223         { WI_NIC_P3_PCMCIA_ATL_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
  224         { WI_NIC_P3_PCMCIA_ATS_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
  225         { WI_NIC_P3_MINI_AMD_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
  226         { WI_NIC_P3_MINI_SST_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
  227         { WI_NIC_P3_MINI_ATL_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
  228         { WI_NIC_P3_MINI_ATS_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
  229         { 0,    NULL,   0 },
  230 };
  231 
  232 static char *wi_firmware_names[] = { "none", "Hermes", "Intersil", "Symbol" };
  233 
  234 devclass_t wi_devclass;
  235 
  236 int
  237 wi_attach(device_t dev)
  238 {
  239         struct wi_softc *sc = device_get_softc(dev);
  240         struct ieee80211com *ic;
  241         struct ifnet *ifp;
  242         int i, nrates, buflen;
  243         u_int16_t val;
  244         u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE];
  245         struct ieee80211_rateset *rs;
  246         struct sysctl_ctx_list *sctx;
  247         struct sysctl_oid *soid;
  248         static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = {
  249                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
  250         };
  251         int error;
  252         uint8_t macaddr[IEEE80211_ADDR_LEN];
  253 
  254         ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
  255         if (ifp == NULL) {
  256                 device_printf(dev, "can not if_alloc\n");
  257                 wi_free(dev);
  258                 return ENOSPC;
  259         }
  260         ic = ifp->if_l2com;
  261 
  262         sc->sc_firmware_type = WI_NOTYPE;
  263         sc->wi_cmd_count = 500;
  264         /* Reset the NIC. */
  265         if (wi_reset(sc) != 0) {
  266                 wi_free(dev);
  267                 return ENXIO;           /* XXX */
  268         }
  269 
  270         /* Read NIC identification */
  271         wi_read_nicid(sc);
  272         switch (sc->sc_firmware_type) {
  273         case WI_LUCENT:
  274                 if (sc->sc_sta_firmware_ver < 60006)
  275                         goto reject;
  276                 break;
  277         case WI_INTERSIL:
  278                 if (sc->sc_sta_firmware_ver < 800)
  279                         goto reject;
  280                 break;
  281         default:
  282         reject:
  283                 device_printf(dev, "Sorry, this card is not supported "
  284                     "(type %d, firmware ver %d)\n",
  285                     sc->sc_firmware_type, sc->sc_sta_firmware_ver);
  286                 wi_free(dev);
  287                 return EOPNOTSUPP; 
  288         }
  289 
  290         /* Export info about the device via sysctl */
  291         sctx = device_get_sysctl_ctx(dev);
  292         soid = device_get_sysctl_tree(dev);
  293         SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
  294             "firmware_type", CTLFLAG_RD,
  295             wi_firmware_names[sc->sc_firmware_type], 0,
  296             "Firmware type string");
  297         SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version",
  298             CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0,
  299             "Station Firmware version");
  300         if (sc->sc_firmware_type == WI_INTERSIL)
  301                 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
  302                     "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0,
  303                     "Primary Firmware version");
  304         SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id",
  305             CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id");
  306         SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name",
  307             CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name");
  308 
  309         mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
  310             MTX_DEF | MTX_RECURSE);
  311         callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0);
  312 
  313         /*
  314          * Read the station address.
  315          * And do it twice. I've seen PRISM-based cards that return
  316          * an error when trying to read it the first time, which causes
  317          * the probe to fail.
  318          */
  319         buflen = IEEE80211_ADDR_LEN;
  320         error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen);
  321         if (error != 0) {
  322                 buflen = IEEE80211_ADDR_LEN;
  323                 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen);
  324         }
  325         if (error || IEEE80211_ADDR_EQ(macaddr, empty_macaddr)) {
  326                 if (error != 0)
  327                         device_printf(dev, "mac read failed %d\n", error);
  328                 else {
  329                         device_printf(dev, "mac read failed (all zeros)\n");
  330                         error = ENXIO;
  331                 }
  332                 wi_free(dev);
  333                 return (error);
  334         }
  335 
  336         ifp->if_softc = sc;
  337         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
  338         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
  339         ifp->if_ioctl = wi_ioctl;
  340         ifp->if_start = wi_start;
  341         ifp->if_init = wi_init;
  342         ifp->if_get_counter = wi_get_counter;
  343         IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
  344         ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
  345         IFQ_SET_READY(&ifp->if_snd);
  346 
  347         ic->ic_ifp = ifp;
  348         ic->ic_softc = sc;
  349         ic->ic_name = device_get_nameunit(dev);
  350         ic->ic_phytype = IEEE80211_T_DS;
  351         ic->ic_opmode = IEEE80211_M_STA;
  352         ic->ic_caps = IEEE80211_C_STA
  353                     | IEEE80211_C_PMGT
  354                     | IEEE80211_C_MONITOR
  355                     ;
  356 
  357         /*
  358          * Query the card for available channels and setup the
  359          * channel table.  We assume these are all 11b channels.
  360          */
  361         buflen = sizeof(val);
  362         if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
  363                 val = htole16(0x1fff);  /* assume 1-11 */
  364         KASSERT(val != 0, ("wi_attach: no available channels listed!"));
  365 
  366         val <<= 1;                      /* shift for base 1 indices */
  367         for (i = 1; i < 16; i++) {
  368                 struct ieee80211_channel *c;
  369 
  370                 if (!isset((u_int8_t*)&val, i))
  371                         continue;
  372                 c = &ic->ic_channels[ic->ic_nchans++];
  373                 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
  374                 c->ic_flags = IEEE80211_CHAN_B;
  375                 c->ic_ieee = i;
  376                 /* XXX txpowers? */
  377         }
  378 
  379         /*
  380          * Set flags based on firmware version.
  381          */
  382         switch (sc->sc_firmware_type) {
  383         case WI_LUCENT:
  384                 sc->sc_ntxbuf = 1;
  385                 ic->ic_caps |= IEEE80211_C_IBSS;
  386 
  387                 sc->sc_ibss_port = WI_PORTTYPE_BSS;
  388                 sc->sc_monitor_port = WI_PORTTYPE_ADHOC;
  389                 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
  390                 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
  391                 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
  392                 break;
  393         case WI_INTERSIL:
  394                 sc->sc_ntxbuf = WI_NTXBUF;
  395                 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR
  396                              |  WI_FLAGS_HAS_ROAMING;
  397                 /*
  398                  * Old firmware are slow, so give peace a chance.
  399                  */
  400                 if (sc->sc_sta_firmware_ver < 10000)
  401                         sc->wi_cmd_count = 5000;
  402                 if (sc->sc_sta_firmware_ver > 10101)
  403                         sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
  404                 ic->ic_caps |= IEEE80211_C_IBSS;
  405                 /*
  406                  * version 0.8.3 and newer are the only ones that are known
  407                  * to currently work.  Earlier versions can be made to work,
  408                  * at least according to the Linux driver but we require
  409                  * monitor mode so this is irrelevant.
  410                  */
  411                 ic->ic_caps |= IEEE80211_C_HOSTAP;
  412                 if (sc->sc_sta_firmware_ver >= 10603)
  413                         sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY;
  414                 if (sc->sc_sta_firmware_ver >= 10700) {
  415                         /*
  416                          * 1.7.0+ have the necessary support for sta mode WPA.
  417                          */
  418                         sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT;
  419                         ic->ic_caps |= IEEE80211_C_WPA;
  420                 }
  421 
  422                 sc->sc_ibss_port = WI_PORTTYPE_IBSS;
  423                 sc->sc_monitor_port = WI_PORTTYPE_APSILENT;
  424                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
  425                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
  426                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
  427                 break;
  428         }
  429 
  430         /*
  431          * Find out if we support WEP on this card.
  432          */
  433         buflen = sizeof(val);
  434         if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
  435             val != htole16(0))
  436                 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP;
  437 
  438         /* Find supported rates. */
  439         buflen = sizeof(ratebuf);
  440         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
  441         if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
  442                 nrates = le16toh(*(u_int16_t *)ratebuf);
  443                 if (nrates > IEEE80211_RATE_MAXSIZE)
  444                         nrates = IEEE80211_RATE_MAXSIZE;
  445                 rs->rs_nrates = 0;
  446                 for (i = 0; i < nrates; i++)
  447                         if (ratebuf[2+i])
  448                                 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
  449         } else {
  450                 /* XXX fallback on error? */
  451         }
  452 
  453         buflen = sizeof(val);
  454         if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
  455             wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
  456                 sc->sc_dbm_offset = le16toh(val);
  457         }
  458 
  459         sc->sc_portnum = WI_DEFAULT_PORT;
  460 
  461         ieee80211_ifattach(ic, macaddr);
  462         ic->ic_raw_xmit = wi_raw_xmit;
  463         ic->ic_scan_start = wi_scan_start;
  464         ic->ic_scan_end = wi_scan_end;
  465         ic->ic_set_channel = wi_set_channel;
  466 
  467         ic->ic_vap_create = wi_vap_create;
  468         ic->ic_vap_delete = wi_vap_delete;
  469         ic->ic_update_mcast = wi_update_mcast;
  470         ic->ic_update_promisc = wi_update_promisc;
  471 
  472         ieee80211_radiotap_attach(ic,
  473             &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th),
  474                 WI_TX_RADIOTAP_PRESENT,
  475             &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th),
  476                 WI_RX_RADIOTAP_PRESENT);
  477 
  478         if (bootverbose)
  479                 ieee80211_announce(ic);
  480 
  481         error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
  482             NULL, wi_intr, sc, &sc->wi_intrhand);
  483         if (error) {
  484                 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
  485                 ieee80211_ifdetach(ic);
  486                 if_free(sc->sc_ifp);
  487                 wi_free(dev);
  488                 return error;
  489         }
  490 
  491         return (0);
  492 }
  493 
  494 int
  495 wi_detach(device_t dev)
  496 {
  497         struct wi_softc *sc = device_get_softc(dev);
  498         struct ifnet *ifp = sc->sc_ifp;
  499         struct ieee80211com *ic = ifp->if_l2com;
  500 
  501         WI_LOCK(sc);
  502 
  503         /* check if device was removed */
  504         sc->wi_gone |= !bus_child_present(dev);
  505 
  506         wi_stop_locked(sc, 0);
  507         WI_UNLOCK(sc);
  508         ieee80211_ifdetach(ic);
  509 
  510         bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
  511         if_free(sc->sc_ifp);
  512         wi_free(dev);
  513         mtx_destroy(&sc->sc_mtx);
  514         return (0);
  515 }
  516 
  517 static struct ieee80211vap *
  518 wi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
  519     enum ieee80211_opmode opmode, int flags,
  520     const uint8_t bssid[IEEE80211_ADDR_LEN],
  521     const uint8_t mac[IEEE80211_ADDR_LEN])
  522 {
  523         struct wi_softc *sc = ic->ic_ifp->if_softc;
  524         struct wi_vap *wvp;
  525         struct ieee80211vap *vap;
  526 
  527         if (!TAILQ_EMPTY(&ic->ic_vaps))         /* only one at a time */
  528                 return NULL;
  529         wvp = (struct wi_vap *) malloc(sizeof(struct wi_vap),
  530             M_80211_VAP, M_NOWAIT | M_ZERO);
  531         if (wvp == NULL)
  532                 return NULL;
  533 
  534         vap = &wvp->wv_vap;
  535         ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
  536 
  537         vap->iv_max_aid = WI_MAX_AID;
  538 
  539         switch (opmode) {
  540         case IEEE80211_M_STA:
  541                 sc->sc_porttype = WI_PORTTYPE_BSS;
  542                 wvp->wv_newstate = vap->iv_newstate;
  543                 vap->iv_newstate = wi_newstate_sta;
  544                 /* need to filter mgt frames to avoid confusing state machine */
  545                 wvp->wv_recv_mgmt = vap->iv_recv_mgmt;
  546                 vap->iv_recv_mgmt = wi_recv_mgmt;
  547                 break;
  548         case IEEE80211_M_IBSS:
  549                 sc->sc_porttype = sc->sc_ibss_port;
  550                 wvp->wv_newstate = vap->iv_newstate;
  551                 vap->iv_newstate = wi_newstate_sta;
  552                 break;
  553         case IEEE80211_M_AHDEMO:
  554                 sc->sc_porttype = WI_PORTTYPE_ADHOC;
  555                 break;
  556         case IEEE80211_M_HOSTAP:
  557                 sc->sc_porttype = WI_PORTTYPE_HOSTAP;
  558                 wvp->wv_newstate = vap->iv_newstate;
  559                 vap->iv_newstate = wi_newstate_hostap;
  560                 break;
  561         case IEEE80211_M_MONITOR:
  562                 sc->sc_porttype = sc->sc_monitor_port;
  563                 break;
  564         default:
  565                 break;
  566         }
  567 
  568         /* complete setup */
  569         ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status);
  570         ic->ic_opmode = opmode;
  571         return vap;
  572 }
  573 
  574 static void
  575 wi_vap_delete(struct ieee80211vap *vap)
  576 {
  577         struct wi_vap *wvp = WI_VAP(vap);
  578 
  579         ieee80211_vap_detach(vap);
  580         free(wvp, M_80211_VAP);
  581 }
  582 
  583 int
  584 wi_shutdown(device_t dev)
  585 {
  586         struct wi_softc *sc = device_get_softc(dev);
  587 
  588         wi_stop(sc, 1);
  589         return (0);
  590 }
  591 
  592 void
  593 wi_intr(void *arg)
  594 {
  595         struct wi_softc *sc = arg;
  596         struct ifnet *ifp = sc->sc_ifp;
  597         u_int16_t status;
  598 
  599         WI_LOCK(sc);
  600 
  601         if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) {
  602                 CSR_WRITE_2(sc, WI_INT_EN, 0);
  603                 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
  604                 WI_UNLOCK(sc);
  605                 return;
  606         }
  607 
  608         /* Disable interrupts. */
  609         CSR_WRITE_2(sc, WI_INT_EN, 0);
  610 
  611         status = CSR_READ_2(sc, WI_EVENT_STAT);
  612         if (status & WI_EV_RX)
  613                 wi_rx_intr(sc);
  614         if (status & WI_EV_ALLOC)
  615                 wi_tx_intr(sc);
  616         if (status & WI_EV_TX_EXC)
  617                 wi_tx_ex_intr(sc);
  618         if (status & WI_EV_INFO)
  619                 wi_info_intr(sc);
  620         if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
  621             !IFQ_DRV_IS_EMPTY(&ifp->if_snd))
  622                 wi_start_locked(ifp);
  623 
  624         /* Re-enable interrupts. */
  625         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
  626 
  627         WI_UNLOCK(sc);
  628 
  629         return;
  630 }
  631 
  632 static void
  633 wi_enable(struct wi_softc *sc)
  634 {
  635         /* Enable interrupts */
  636         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
  637 
  638         /* enable port */
  639         wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
  640         sc->sc_enabled = 1;
  641 }
  642 
  643 static int
  644 wi_setup_locked(struct wi_softc *sc, int porttype, int mode,
  645         uint8_t mac[IEEE80211_ADDR_LEN])
  646 {
  647         int i;
  648 
  649         wi_reset(sc);
  650 
  651         wi_write_val(sc, WI_RID_PORTTYPE, porttype);
  652         wi_write_val(sc, WI_RID_CREATE_IBSS, mode);
  653         wi_write_val(sc, WI_RID_MAX_DATALEN, 2304);
  654         /* XXX IEEE80211_BPF_NOACK wants 0 */
  655         wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2);
  656         if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
  657                 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */
  658 
  659         wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN);
  660 
  661         /* Allocate fids for the card */
  662         sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
  663         for (i = 0; i < sc->sc_ntxbuf; i++) {
  664                 int error = wi_alloc_fid(sc, sc->sc_buflen,
  665                     &sc->sc_txd[i].d_fid);
  666                 if (error) {
  667                         device_printf(sc->sc_dev,
  668                             "tx buffer allocation failed (error %u)\n",
  669                             error);
  670                         return error;
  671                 }
  672                 sc->sc_txd[i].d_len = 0;
  673         }
  674         sc->sc_txcur = sc->sc_txnext = 0;
  675 
  676         return 0;
  677 }
  678 
  679 static void
  680 wi_init_locked(struct wi_softc *sc)
  681 {
  682         struct ifnet *ifp = sc->sc_ifp;
  683         int wasenabled;
  684 
  685         WI_LOCK_ASSERT(sc);
  686 
  687         wasenabled = sc->sc_enabled;
  688         if (wasenabled)
  689                 wi_stop_locked(sc, 1);
  690 
  691         if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) {
  692                 if_printf(ifp, "interface not running\n");
  693                 wi_stop_locked(sc, 1);
  694                 return;
  695         }
  696 
  697         ifp->if_drv_flags |= IFF_DRV_RUNNING;
  698         ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
  699 
  700         callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc);
  701 
  702         wi_enable(sc);                  /* Enable desired port */
  703 }
  704 
  705 void
  706 wi_init(void *arg)
  707 {
  708         struct wi_softc *sc = arg;
  709         struct ifnet *ifp = sc->sc_ifp;
  710         struct ieee80211com *ic = ifp->if_l2com;
  711 
  712         WI_LOCK(sc);
  713         wi_init_locked(sc);
  714         WI_UNLOCK(sc);
  715 
  716         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
  717                 ieee80211_start_all(ic);                /* start all vap's */
  718 }
  719 
  720 static void
  721 wi_stop_locked(struct wi_softc *sc, int disable)
  722 {
  723         struct ifnet *ifp = sc->sc_ifp;
  724 
  725         WI_LOCK_ASSERT(sc);
  726 
  727         if (sc->sc_enabled && !sc->wi_gone) {
  728                 CSR_WRITE_2(sc, WI_INT_EN, 0);
  729                 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
  730                 if (disable)
  731                         sc->sc_enabled = 0;
  732         } else if (sc->wi_gone && disable)      /* gone --> not enabled */
  733                 sc->sc_enabled = 0;
  734 
  735         callout_stop(&sc->sc_watchdog);
  736         sc->sc_tx_timer = 0;
  737         sc->sc_false_syns = 0;
  738 
  739         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
  740 }
  741 
  742 void
  743 wi_stop(struct wi_softc *sc, int disable)
  744 {
  745         WI_LOCK(sc);
  746         wi_stop_locked(sc, disable);
  747         WI_UNLOCK(sc);
  748 }
  749 
  750 static void
  751 wi_set_channel(struct ieee80211com *ic)
  752 {
  753         struct ifnet *ifp = ic->ic_ifp;
  754         struct wi_softc *sc = ifp->if_softc;
  755 
  756         DPRINTF(("%s: channel %d, %sscanning\n", __func__,
  757             ieee80211_chan2ieee(ic, ic->ic_curchan),
  758             ic->ic_flags & IEEE80211_F_SCAN ? "" : "!"));
  759 
  760         WI_LOCK(sc);
  761         wi_write_val(sc, WI_RID_OWN_CHNL,
  762             ieee80211_chan2ieee(ic, ic->ic_curchan));
  763         WI_UNLOCK(sc);
  764 }
  765 
  766 static void
  767 wi_scan_start(struct ieee80211com *ic)
  768 {
  769         struct ifnet *ifp = ic->ic_ifp;
  770         struct wi_softc *sc = ifp->if_softc;
  771         struct ieee80211_scan_state *ss = ic->ic_scan;
  772 
  773         DPRINTF(("%s\n", __func__));
  774 
  775         WI_LOCK(sc);
  776         /*
  777          * Switch device to monitor mode.
  778          */
  779         wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port);
  780         if (sc->sc_firmware_type == WI_INTERSIL) {
  781                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
  782                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
  783         }
  784         /* force full dwell time to compensate for firmware overhead */
  785         ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400);
  786         WI_UNLOCK(sc);
  787 
  788 }
  789 
  790 static void
  791 wi_scan_end(struct ieee80211com *ic)
  792 {
  793         struct ifnet *ifp = ic->ic_ifp;
  794         struct wi_softc *sc = ifp->if_softc;
  795 
  796         DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype));
  797 
  798         WI_LOCK(sc);
  799         wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype);
  800         if (sc->sc_firmware_type == WI_INTERSIL) {
  801                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
  802                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
  803         }
  804         WI_UNLOCK(sc);
  805 }
  806 
  807 static void
  808 wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
  809         int subtype, const struct ieee80211_rx_stats *rxs, int rssi, int nf)
  810 {
  811         struct ieee80211vap *vap = ni->ni_vap;
  812 
  813         switch (subtype) {
  814         case IEEE80211_FC0_SUBTYPE_AUTH:
  815         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
  816         case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
  817                 /* NB: filter frames that trigger state changes */
  818                 return;
  819         }
  820         WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rxs, rssi, nf);
  821 }
  822 
  823 static int
  824 wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
  825 {
  826         struct ieee80211com *ic = vap->iv_ic;
  827         struct ifnet *ifp = ic->ic_ifp;
  828         struct ieee80211_node *bss;
  829         struct wi_softc *sc = ifp->if_softc;
  830 
  831         DPRINTF(("%s: %s -> %s\n", __func__,
  832                 ieee80211_state_name[vap->iv_state],
  833                 ieee80211_state_name[nstate]));
  834 
  835         if (nstate == IEEE80211_S_AUTH) {
  836                 WI_LOCK(sc);
  837                 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr);
  838 
  839                 if (vap->iv_flags & IEEE80211_F_PMGTON) {
  840                         wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
  841                         wi_write_val(sc, WI_RID_PM_ENABLED, 1);
  842                 }
  843                 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold);
  844                 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
  845                         wi_write_val(sc, WI_RID_FRAG_THRESH,
  846                             vap->iv_fragthreshold);
  847                 wi_write_txrate(sc, vap);
  848 
  849                 bss = vap->iv_bss;
  850                 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen);
  851                 wi_write_val(sc, WI_RID_OWN_CHNL,
  852                     ieee80211_chan2ieee(ic, bss->ni_chan));
  853 
  854                 /* Configure WEP. */
  855                 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP)
  856                         wi_write_wep(sc, vap);
  857                 else
  858                         sc->sc_encryption = 0;
  859 
  860                 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) &&
  861                     (vap->iv_flags & IEEE80211_F_WPA)) {
  862                         wi_write_val(sc, WI_RID_WPA_HANDLING, 1);
  863                         if (vap->iv_appie_wpa != NULL)
  864                                 wi_write_appie(sc, WI_RID_WPA_DATA,
  865                                     vap->iv_appie_wpa);
  866                 }
  867 
  868                 wi_enable(sc);          /* enable port */
  869 
  870                 /* Lucent firmware does not support the JOIN RID. */
  871                 if (sc->sc_firmware_type == WI_INTERSIL) {
  872                         struct wi_joinreq join;
  873 
  874                         memset(&join, 0, sizeof(join));
  875                         IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid);
  876                         join.wi_chan = htole16(
  877                             ieee80211_chan2ieee(ic, bss->ni_chan));
  878                         wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
  879                 }
  880                 WI_UNLOCK(sc);
  881 
  882                 /*
  883                  * NB: don't go through 802.11 layer, it'll send auth frame;
  884                  * instead we drive the state machine from the link status
  885                  * notification we get on association.
  886                  */
  887                 vap->iv_state = nstate;
  888                 return (0);
  889         }
  890         return WI_VAP(vap)->wv_newstate(vap, nstate, arg);
  891 }
  892 
  893 static int
  894 wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
  895 {
  896         struct ieee80211com *ic = vap->iv_ic;
  897         struct ifnet *ifp = ic->ic_ifp;
  898         struct ieee80211_node *bss;
  899         struct wi_softc *sc = ifp->if_softc;
  900         int error;
  901 
  902         DPRINTF(("%s: %s -> %s\n", __func__,
  903                 ieee80211_state_name[vap->iv_state],
  904                 ieee80211_state_name[nstate]));
  905 
  906         error = WI_VAP(vap)->wv_newstate(vap, nstate, arg);
  907         if (error == 0 && nstate == IEEE80211_S_RUN) {
  908                 WI_LOCK(sc);
  909                 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr);
  910 
  911                 bss = vap->iv_bss;
  912                 wi_write_ssid(sc, WI_RID_OWN_SSID,
  913                     bss->ni_essid, bss->ni_esslen);
  914                 wi_write_val(sc, WI_RID_OWN_CHNL,
  915                     ieee80211_chan2ieee(ic, bss->ni_chan));
  916                 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3);
  917                 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf);
  918                 wi_write_txrate(sc, vap);
  919 
  920                 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval);
  921                 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period);
  922 
  923                 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold);
  924                 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
  925                         wi_write_val(sc, WI_RID_FRAG_THRESH,
  926                             vap->iv_fragthreshold);
  927 
  928                 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) &&
  929                     (vap->iv_flags & IEEE80211_F_HIDESSID)) {
  930                         /*
  931                          * bit 0 means hide SSID in beacons,
  932                          * bit 1 means don't respond to bcast probe req
  933                          */
  934                         wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3);
  935                 }
  936 
  937                 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) &&
  938                     (vap->iv_flags & IEEE80211_F_WPA) && 
  939                     vap->iv_appie_wpa != NULL)
  940                         wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa);
  941 
  942                 wi_write_val(sc, WI_RID_PROMISC, 0);
  943 
  944                 /* Configure WEP. */
  945                 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP)
  946                         wi_write_wep(sc, vap);
  947                 else
  948                         sc->sc_encryption = 0;
  949 
  950                 wi_enable(sc);          /* enable port */
  951                 WI_UNLOCK(sc);
  952         }
  953         return error;
  954 }
  955 
  956 static void
  957 wi_start_locked(struct ifnet *ifp)
  958 {
  959         struct wi_softc *sc = ifp->if_softc;
  960         struct ieee80211_node *ni;
  961         struct ieee80211_frame *wh;
  962         struct mbuf *m0;
  963         struct ieee80211_key *k;
  964         struct wi_frame frmhdr;
  965         const struct llc *llc;
  966         int cur;
  967 
  968         WI_LOCK_ASSERT(sc);
  969 
  970         if (sc->wi_gone)
  971                 return;
  972 
  973         memset(&frmhdr, 0, sizeof(frmhdr));
  974         cur = sc->sc_txnext;
  975         for (;;) {
  976                 IFQ_DRV_DEQUEUE(&ifp->if_snd, m0);
  977                 if (m0 == NULL)
  978                         break;
  979                 if (sc->sc_txd[cur].d_len != 0) {
  980                         IFQ_DRV_PREPEND(&ifp->if_snd, m0);
  981                         ifp->if_drv_flags |= IFF_DRV_OACTIVE;
  982                         break;
  983                 }
  984                 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
  985 
  986                 /* reconstruct 802.3 header */
  987                 wh = mtod(m0, struct ieee80211_frame *);
  988                 switch (wh->i_fc[1]) {
  989                 case IEEE80211_FC1_DIR_TODS:
  990                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
  991                             wh->i_addr2);
  992                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
  993                             wh->i_addr3);
  994                         break;
  995                 case IEEE80211_FC1_DIR_NODS:
  996                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
  997                             wh->i_addr2);
  998                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
  999                             wh->i_addr1);
 1000                         break;
 1001                 case IEEE80211_FC1_DIR_FROMDS:
 1002                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
 1003                             wh->i_addr3);
 1004                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
 1005                             wh->i_addr1);
 1006                         break;
 1007                 }
 1008                 llc = (const struct llc *)(
 1009                     mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh));
 1010                 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type;
 1011                 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 1012                 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
 1013                         k = ieee80211_crypto_encap(ni, m0);
 1014                         if (k == NULL) {
 1015                                 ieee80211_free_node(ni);
 1016                                 m_freem(m0);
 1017                                 continue;
 1018                         }
 1019                         frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 1020                 }
 1021 
 1022                 if (ieee80211_radiotap_active_vap(ni->ni_vap)) {
 1023                         sc->sc_tx_th.wt_rate = ni->ni_txrate;
 1024                         ieee80211_radiotap_tx(ni->ni_vap, m0);
 1025                 }
 1026 
 1027                 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 1028                     (caddr_t)&frmhdr.wi_whdr);
 1029                 m_adj(m0, sizeof(struct ieee80211_frame));
 1030                 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 1031                 ieee80211_free_node(ni);
 1032                 if (wi_start_tx(ifp, &frmhdr, m0))
 1033                         continue;
 1034 
 1035                 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 1036                 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
 1037         }
 1038 }
 1039 
 1040 static void
 1041 wi_start(struct ifnet *ifp)
 1042 {
 1043         struct wi_softc *sc = ifp->if_softc;
 1044 
 1045         WI_LOCK(sc);
 1046         wi_start_locked(ifp);
 1047         WI_UNLOCK(sc);
 1048 }
 1049 
 1050 static int
 1051 wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0)
 1052 {
 1053         struct wi_softc *sc = ifp->if_softc;
 1054         int cur = sc->sc_txnext;
 1055         int fid, off, error;
 1056 
 1057         fid = sc->sc_txd[cur].d_fid;
 1058         off = sizeof(*frmhdr);
 1059         error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0
 1060              || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
 1061         m_freem(m0);
 1062         if (error) {
 1063                 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
 1064                 return -1;
 1065         }
 1066         sc->sc_txd[cur].d_len = off;
 1067         if (sc->sc_txcur == cur) {
 1068                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
 1069                         if_printf(ifp, "xmit failed\n");
 1070                         sc->sc_txd[cur].d_len = 0;
 1071                         return -1;
 1072                 }
 1073                 sc->sc_tx_timer = 5;
 1074         }
 1075         return 0;
 1076 }
 1077 
 1078 static int
 1079 wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0,
 1080             const struct ieee80211_bpf_params *params)
 1081 {
 1082         struct ieee80211com *ic = ni->ni_ic;
 1083         struct ifnet *ifp = ic->ic_ifp;
 1084         struct ieee80211vap *vap = ni->ni_vap;
 1085         struct wi_softc *sc = ifp->if_softc;
 1086         struct ieee80211_key *k;
 1087         struct ieee80211_frame *wh;
 1088         struct wi_frame frmhdr;
 1089         int cur;
 1090         int rc = 0;
 1091 
 1092         WI_LOCK(sc);
 1093 
 1094         if (sc->wi_gone) {
 1095                 rc = ENETDOWN;
 1096                 goto out;
 1097         }
 1098         memset(&frmhdr, 0, sizeof(frmhdr));
 1099         cur = sc->sc_txnext;
 1100         if (sc->sc_txd[cur].d_len != 0) {
 1101                 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
 1102                 rc = ENOBUFS;
 1103                 goto out;
 1104         }
 1105         m0->m_pkthdr.rcvif = NULL;
 1106 
 1107         m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
 1108             (caddr_t)&frmhdr.wi_ehdr);
 1109         frmhdr.wi_ehdr.ether_type = 0;
 1110         wh = mtod(m0, struct ieee80211_frame *);
 1111                         
 1112         frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 1113         if (params && (params->ibp_flags & IEEE80211_BPF_NOACK))
 1114                 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY);
 1115         if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
 1116             (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) {
 1117                 k = ieee80211_crypto_encap(ni, m0);
 1118                 if (k == NULL) {
 1119                         rc = ENOMEM;
 1120                         goto out;
 1121                 }
 1122                 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 1123         }
 1124         if (ieee80211_radiotap_active_vap(vap)) {
 1125                 sc->sc_tx_th.wt_rate = ni->ni_txrate;
 1126                 ieee80211_radiotap_tx(vap, m0);
 1127         }
 1128         m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 1129             (caddr_t)&frmhdr.wi_whdr);
 1130         m_adj(m0, sizeof(struct ieee80211_frame));
 1131         frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 1132         if (wi_start_tx(ifp, &frmhdr, m0) < 0) {
 1133                 m0 = NULL;
 1134                 rc = EIO;
 1135                 goto out;
 1136         }
 1137         m0 = NULL;
 1138 
 1139         sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 1140 out:
 1141         WI_UNLOCK(sc);
 1142 
 1143         if (m0 != NULL)
 1144                 m_freem(m0);
 1145         ieee80211_free_node(ni);
 1146         return rc;
 1147 }
 1148 
 1149 static int
 1150 wi_reset(struct wi_softc *sc)
 1151 {
 1152 #define WI_INIT_TRIES 3
 1153         int i, error = 0;
 1154 
 1155         for (i = 0; i < WI_INIT_TRIES; i++) {
 1156                 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0);
 1157                 if (error == 0)
 1158                         break;
 1159                 DELAY(WI_DELAY * 1000);
 1160         }
 1161         sc->sc_reset = 1;
 1162         if (i == WI_INIT_TRIES) {
 1163                 if_printf(sc->sc_ifp, "reset failed\n");
 1164                 return error;
 1165         }
 1166 
 1167         CSR_WRITE_2(sc, WI_INT_EN, 0);
 1168         CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
 1169 
 1170         /* Calibrate timer. */
 1171         wi_write_val(sc, WI_RID_TICK_TIME, 8);
 1172 
 1173         return 0;
 1174 #undef WI_INIT_TRIES
 1175 }
 1176 
 1177 static void
 1178 wi_watchdog(void *arg)
 1179 {
 1180         struct wi_softc *sc = arg;
 1181         struct ifnet *ifp = sc->sc_ifp;
 1182 
 1183         WI_LOCK_ASSERT(sc);
 1184 
 1185         if (!sc->sc_enabled)
 1186                 return;
 1187 
 1188         if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) {
 1189                 if_printf(ifp, "device timeout\n");
 1190                 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
 1191                 wi_init_locked(ifp->if_softc);
 1192                 return;
 1193         }
 1194         callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc);
 1195 }
 1196 
 1197 static int
 1198 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 1199 {
 1200         struct wi_softc *sc = ifp->if_softc;
 1201         struct ieee80211com *ic = ifp->if_l2com;
 1202         struct ifreq *ifr = (struct ifreq *) data;
 1203         int error = 0, startall = 0;
 1204 
 1205         switch (cmd) {
 1206         case SIOCSIFFLAGS:
 1207                 WI_LOCK(sc);
 1208                 /*
 1209                  * Can't do promisc and hostap at the same time.  If all that's
 1210                  * changing is the promisc flag, try to short-circuit a call to
 1211                  * wi_init() by just setting PROMISC in the hardware.
 1212                  */
 1213                 if (ifp->if_flags & IFF_UP) {
 1214                         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
 1215                             ifp->if_drv_flags & IFF_DRV_RUNNING) {
 1216                                 if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) {
 1217                                         wi_write_val(sc, WI_RID_PROMISC,
 1218                                             (ifp->if_flags & IFF_PROMISC) != 0);
 1219                                 } else {
 1220                                         wi_init_locked(sc);
 1221                                         startall = 1;
 1222                                 }
 1223                         } else {
 1224                                 wi_init_locked(sc);
 1225                                 startall = 1;
 1226                         }
 1227                 } else {
 1228                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
 1229                                 wi_stop_locked(sc, 1);
 1230                         sc->wi_gone = 0;
 1231                 }
 1232                 sc->sc_if_flags = ifp->if_flags;
 1233                 WI_UNLOCK(sc);
 1234                 if (startall)
 1235                         ieee80211_start_all(ic);
 1236                 break;
 1237         case SIOCGIFMEDIA:
 1238                 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
 1239                 break;
 1240         case SIOCGIFADDR:
 1241                 error = ether_ioctl(ifp, cmd, data);
 1242                 break;
 1243         default:
 1244                 error = EINVAL;
 1245                 break;
 1246         }
 1247         return error;
 1248 }
 1249 
 1250 static void
 1251 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
 1252 {
 1253         struct ieee80211vap *vap = ifp->if_softc;
 1254         struct ieee80211com *ic = vap->iv_ic;
 1255         struct wi_softc *sc = ic->ic_ifp->if_softc;
 1256         u_int16_t val;
 1257         int rate, len;
 1258 
 1259         len = sizeof(val);
 1260         if (sc->sc_enabled &&
 1261             wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 &&
 1262             len == sizeof(val)) {
 1263                 /* convert to 802.11 rate */
 1264                 val = le16toh(val);
 1265                 rate = val * 2;
 1266                 if (sc->sc_firmware_type == WI_LUCENT) {
 1267                         if (rate == 10)
 1268                                 rate = 11;      /* 5.5Mbps */
 1269                 } else {
 1270                         if (rate == 4*2)
 1271                                 rate = 11;      /* 5.5Mbps */
 1272                         else if (rate == 8*2)
 1273                                 rate = 22;      /* 11Mbps */
 1274                 }
 1275                 vap->iv_bss->ni_txrate = rate;
 1276         }
 1277         ieee80211_media_status(ifp, imr);
 1278 }
 1279 
 1280 static void
 1281 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
 1282 {
 1283         struct ifnet *ifp = sc->sc_ifp;
 1284         struct ieee80211com *ic = ifp->if_l2com;
 1285         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
 1286         struct ieee80211_node *ni = vap->iv_bss;
 1287 
 1288         if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
 1289                 return;
 1290 
 1291         DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid)));
 1292         DPRINTF(("%s ?\n", ether_sprintf(new_bssid)));
 1293 
 1294         /* In promiscuous mode, the BSSID field is not a reliable
 1295          * indicator of the firmware's BSSID. Damp spurious
 1296          * change-of-BSSID indications.
 1297          */
 1298         if ((ifp->if_flags & IFF_PROMISC) != 0 &&
 1299             !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns,
 1300                          WI_MAX_FALSE_SYNS))
 1301                 return;
 1302 
 1303         sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1);
 1304 #if 0
 1305         /*
 1306          * XXX hack; we should create a new node with the new bssid
 1307          * and replace the existing ic_bss with it but since we don't
 1308          * process management frames to collect state we cheat by
 1309          * reusing the existing node as we know wi_newstate will be
 1310          * called and it will overwrite the node state.
 1311          */
 1312         ieee80211_sta_join(ic, ieee80211_ref_node(ni));
 1313 #endif
 1314 }
 1315 
 1316 static __noinline void
 1317 wi_rx_intr(struct wi_softc *sc)
 1318 {
 1319         struct ifnet *ifp = sc->sc_ifp;
 1320         struct ieee80211com *ic = ifp->if_l2com;
 1321         struct wi_frame frmhdr;
 1322         struct mbuf *m;
 1323         struct ieee80211_frame *wh;
 1324         struct ieee80211_node *ni;
 1325         int fid, len, off;
 1326         u_int8_t dir;
 1327         u_int16_t status;
 1328         int8_t rssi, nf;
 1329 
 1330         fid = CSR_READ_2(sc, WI_RX_FID);
 1331 
 1332         /* First read in the frame header */
 1333         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
 1334                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1335                 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
 1336                 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid));
 1337                 return;
 1338         }
 1339 
 1340         /*
 1341          * Drop undecryptable or packets with receive errors here
 1342          */
 1343         status = le16toh(frmhdr.wi_status);
 1344         if (status & WI_STAT_ERRSTAT) {
 1345                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1346                 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
 1347                 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status));
 1348                 return;
 1349         }
 1350 
 1351         len = le16toh(frmhdr.wi_dat_len);
 1352         off = ALIGN(sizeof(struct ieee80211_frame));
 1353 
 1354         /*
 1355          * Sometimes the PRISM2.x returns bogusly large frames. Except
 1356          * in monitor mode, just throw them away.
 1357          */
 1358         if (off + len > MCLBYTES) {
 1359                 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
 1360                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1361                         if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
 1362                         DPRINTF(("wi_rx_intr: oversized packet\n"));
 1363                         return;
 1364                 } else
 1365                         len = 0;
 1366         }
 1367 
 1368         if (off + len > MHLEN)
 1369                 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
 1370         else
 1371                 m = m_gethdr(M_NOWAIT, MT_DATA);
 1372         if (m == NULL) {
 1373                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1374                 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
 1375                 DPRINTF(("wi_rx_intr: MGET failed\n"));
 1376                 return;
 1377         }
 1378         m->m_data += off - sizeof(struct ieee80211_frame);
 1379         memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
 1380         wi_read_bap(sc, fid, sizeof(frmhdr),
 1381             m->m_data + sizeof(struct ieee80211_frame), len);
 1382         m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
 1383         m->m_pkthdr.rcvif = ifp;
 1384 
 1385         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1386 
 1387         rssi = frmhdr.wi_rx_signal;
 1388         nf = frmhdr.wi_rx_silence;
 1389         if (ieee80211_radiotap_active(ic)) {
 1390                 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th;
 1391                 uint32_t rstamp;
 1392 
 1393                 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
 1394                     le16toh(frmhdr.wi_rx_tstamp1);
 1395                 tap->wr_tsf = htole64((uint64_t)rstamp);
 1396                 /* XXX replace divide by table */
 1397                 tap->wr_rate = frmhdr.wi_rx_rate / 5;
 1398                 tap->wr_flags = 0;
 1399                 if (frmhdr.wi_status & WI_STAT_PCF)
 1400                         tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP;
 1401                 if (m->m_flags & M_WEP)
 1402                         tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP;
 1403                 tap->wr_antsignal = rssi;
 1404                 tap->wr_antnoise = nf;
 1405         }
 1406 
 1407         /* synchronize driver's BSSID with firmware's BSSID */
 1408         wh = mtod(m, struct ieee80211_frame *);
 1409         dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
 1410         if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
 1411                 wi_sync_bssid(sc, wh->i_addr3);
 1412 
 1413         WI_UNLOCK(sc);
 1414 
 1415         ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
 1416         if (ni != NULL) {
 1417                 (void) ieee80211_input(ni, m, rssi, nf);
 1418                 ieee80211_free_node(ni);
 1419         } else
 1420                 (void) ieee80211_input_all(ic, m, rssi, nf);
 1421 
 1422         WI_LOCK(sc);
 1423 }
 1424 
 1425 static __noinline void
 1426 wi_tx_ex_intr(struct wi_softc *sc)
 1427 {
 1428         struct ifnet *ifp = sc->sc_ifp;
 1429         struct wi_frame frmhdr;
 1430         int fid;
 1431 
 1432         fid = CSR_READ_2(sc, WI_TX_CMP_FID);
 1433         /* Read in the frame header */
 1434         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
 1435                 u_int16_t status = le16toh(frmhdr.wi_status);
 1436                 /*
 1437                  * Spontaneous station disconnects appear as xmit
 1438                  * errors.  Don't announce them and/or count them
 1439                  * as an output error.
 1440                  */
 1441                 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
 1442                         if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
 1443                                 if_printf(ifp, "tx failed");
 1444                                 if (status & WI_TXSTAT_RET_ERR)
 1445                                         printf(", retry limit exceeded");
 1446                                 if (status & WI_TXSTAT_AGED_ERR)
 1447                                         printf(", max transmit lifetime exceeded");
 1448                                 if (status & WI_TXSTAT_DISCONNECT)
 1449                                         printf(", port disconnected");
 1450                                 if (status & WI_TXSTAT_FORM_ERR)
 1451                                         printf(", invalid format (data len %u src %6D)",
 1452                                                 le16toh(frmhdr.wi_dat_len),
 1453                                                 frmhdr.wi_ehdr.ether_shost, ":");
 1454                                 if (status & ~0xf)
 1455                                         printf(", status=0x%x", status);
 1456                                 printf("\n");
 1457                         }
 1458                         if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
 1459                 } else
 1460                         DPRINTF(("port disconnected\n"));
 1461         } else
 1462                 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid));
 1463         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
 1464 }
 1465 
 1466 static __noinline void
 1467 wi_tx_intr(struct wi_softc *sc)
 1468 {
 1469         struct ifnet *ifp = sc->sc_ifp;
 1470         int fid, cur;
 1471 
 1472         if (sc->wi_gone)
 1473                 return;
 1474 
 1475         fid = CSR_READ_2(sc, WI_ALLOC_FID);
 1476         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
 1477 
 1478         cur = sc->sc_txcur;
 1479         if (sc->sc_txd[cur].d_fid != fid) {
 1480                 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n",
 1481                     fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
 1482                 return;
 1483         }
 1484         sc->sc_tx_timer = 0;
 1485         sc->sc_txd[cur].d_len = 0;
 1486         sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
 1487         if (sc->sc_txd[cur].d_len == 0)
 1488                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 1489         else {
 1490                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
 1491                     0, 0)) {
 1492                         if_printf(ifp, "xmit failed\n");
 1493                         sc->sc_txd[cur].d_len = 0;
 1494                 } else {
 1495                         sc->sc_tx_timer = 5;
 1496                 }
 1497         }
 1498 }
 1499 
 1500 static __noinline void
 1501 wi_info_intr(struct wi_softc *sc)
 1502 {
 1503         struct ieee80211com *ic = sc->sc_ifp->if_l2com;
 1504         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
 1505         int i, fid, len, off;
 1506         u_int16_t ltbuf[2];
 1507         u_int16_t stat;
 1508         u_int32_t *ptr;
 1509 
 1510         fid = CSR_READ_2(sc, WI_INFO_FID);
 1511         wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
 1512 
 1513         switch (le16toh(ltbuf[1])) {
 1514         case WI_INFO_LINK_STAT:
 1515                 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
 1516                 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
 1517 
 1518                 if (vap == NULL)
 1519                         goto finish;
 1520 
 1521                 switch (le16toh(stat)) {
 1522                 case WI_INFO_LINK_STAT_CONNECTED:
 1523                         if (vap->iv_state == IEEE80211_S_RUN &&
 1524                             vap->iv_opmode != IEEE80211_M_IBSS)
 1525                                 break;
 1526                         /* fall thru... */
 1527                 case WI_INFO_LINK_STAT_AP_CHG:
 1528                         IEEE80211_LOCK(ic);
 1529                         vap->iv_bss->ni_associd = 1 | 0xc000;   /* NB: anything will do */
 1530                         ieee80211_new_state(vap, IEEE80211_S_RUN, 0);
 1531                         IEEE80211_UNLOCK(ic);
 1532                         break;
 1533                 case WI_INFO_LINK_STAT_AP_INR:
 1534                         break;
 1535                 case WI_INFO_LINK_STAT_DISCONNECTED:
 1536                         /* we dropped off the net; e.g. due to deauth/disassoc */
 1537                         IEEE80211_LOCK(ic);
 1538                         vap->iv_bss->ni_associd = 0;
 1539                         vap->iv_stats.is_rx_deauth++;
 1540                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
 1541                         IEEE80211_UNLOCK(ic);
 1542                         break;
 1543                 case WI_INFO_LINK_STAT_AP_OOR:
 1544                         /* XXX does this need to be per-vap? */
 1545                         ieee80211_beacon_miss(ic);
 1546                         break;
 1547                 case WI_INFO_LINK_STAT_ASSOC_FAILED:
 1548                         if (vap->iv_opmode == IEEE80211_M_STA)
 1549                                 ieee80211_new_state(vap, IEEE80211_S_SCAN,
 1550                                     IEEE80211_SCAN_FAIL_TIMEOUT);
 1551                         break;
 1552                 }
 1553                 break;
 1554         case WI_INFO_COUNTERS:
 1555                 /* some card versions have a larger stats structure */
 1556                 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
 1557                 ptr = (u_int32_t *)&sc->sc_stats;
 1558                 off = sizeof(ltbuf);
 1559                 for (i = 0; i < len; i++, off += 2, ptr++) {
 1560                         wi_read_bap(sc, fid, off, &stat, sizeof(stat));
 1561 #ifdef WI_HERMES_STATS_WAR
 1562                         if (stat & 0xf000)
 1563                                 stat = ~stat;
 1564 #endif
 1565                         *ptr += stat;
 1566                 }
 1567                 break;
 1568         default:
 1569                 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid,
 1570                     le16toh(ltbuf[1]), le16toh(ltbuf[0])));
 1571                 break;
 1572         }
 1573 finish:
 1574         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
 1575 }
 1576 
 1577 static uint64_t
 1578 wi_get_counter(struct ifnet *ifp, ift_counter cnt)
 1579 {
 1580         struct wi_softc *sc;
 1581 
 1582         sc = if_getsoftc(ifp);
 1583 
 1584         switch (cnt) {
 1585         case IFCOUNTER_COLLISIONS:
 1586                 return (sc->sc_stats.wi_tx_single_retries +
 1587                     sc->sc_stats.wi_tx_multi_retries +
 1588                     sc->sc_stats.wi_tx_retry_limit);
 1589         default:
 1590                 return (if_get_counter_default(ifp, cnt));
 1591         }
 1592 }
 1593 
 1594 static int
 1595 wi_write_multi(struct wi_softc *sc)
 1596 {
 1597         struct ifnet *ifp = sc->sc_ifp;
 1598         int n;
 1599         struct ifmultiaddr *ifma;
 1600         struct wi_mcast mlist;
 1601 
 1602         if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
 1603 allmulti:
 1604                 memset(&mlist, 0, sizeof(mlist));
 1605                 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
 1606                     sizeof(mlist));
 1607         }
 1608 
 1609         n = 0;
 1610         if_maddr_rlock(ifp);
 1611         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 1612                 if (ifma->ifma_addr->sa_family != AF_LINK)
 1613                         continue;
 1614                 if (n >= 16)
 1615                         goto allmulti;
 1616                 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
 1617                     (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
 1618                 n++;
 1619         }
 1620         if_maddr_runlock(ifp);
 1621         return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
 1622             IEEE80211_ADDR_LEN * n);
 1623 }
 1624 
 1625 static void
 1626 wi_update_mcast(struct ieee80211com *ic)
 1627 {
 1628 
 1629         wi_write_multi(ic->ic_softc);
 1630 }
 1631 
 1632 static void
 1633 wi_update_promisc(struct ieee80211com *ic)
 1634 {
 1635         struct wi_softc *sc = ic->ic_softc;
 1636 
 1637         WI_LOCK(sc);
 1638         /* XXX handle WEP special case handling? */
 1639         wi_write_val(sc, WI_RID_PROMISC, 
 1640             (ic->ic_opmode == IEEE80211_M_MONITOR ||
 1641              (ic->ic_ifp->if_flags & IFF_PROMISC)));
 1642         WI_UNLOCK(sc);
 1643 }
 1644 
 1645 static void
 1646 wi_read_nicid(struct wi_softc *sc)
 1647 {
 1648         struct wi_card_ident *id;
 1649         char *p;
 1650         int len;
 1651         u_int16_t ver[4];
 1652 
 1653         /* getting chip identity */
 1654         memset(ver, 0, sizeof(ver));
 1655         len = sizeof(ver);
 1656         wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
 1657 
 1658         sc->sc_firmware_type = WI_NOTYPE;
 1659         sc->sc_nic_id = le16toh(ver[0]);
 1660         for (id = wi_card_ident; id->card_name != NULL; id++) {
 1661                 if (sc->sc_nic_id == id->card_id) {
 1662                         sc->sc_nic_name = id->card_name;
 1663                         sc->sc_firmware_type = id->firm_type;
 1664                         break;
 1665                 }
 1666         }
 1667         if (sc->sc_firmware_type == WI_NOTYPE) {
 1668                 if (sc->sc_nic_id & 0x8000) {
 1669                         sc->sc_firmware_type = WI_INTERSIL;
 1670                         sc->sc_nic_name = "Unknown Prism chip";
 1671                 } else {
 1672                         sc->sc_firmware_type = WI_LUCENT;
 1673                         sc->sc_nic_name = "Unknown Lucent chip";
 1674                 }
 1675         }
 1676         if (bootverbose)
 1677                 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name);
 1678 
 1679         /* get primary firmware version (Only Prism chips) */
 1680         if (sc->sc_firmware_type != WI_LUCENT) {
 1681                 memset(ver, 0, sizeof(ver));
 1682                 len = sizeof(ver);
 1683                 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
 1684                 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
 1685                     le16toh(ver[3]) * 100 + le16toh(ver[1]);
 1686         }
 1687 
 1688         /* get station firmware version */
 1689         memset(ver, 0, sizeof(ver));
 1690         len = sizeof(ver);
 1691         wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
 1692         sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
 1693             le16toh(ver[3]) * 100 + le16toh(ver[1]);
 1694         if (sc->sc_firmware_type == WI_INTERSIL &&
 1695             (sc->sc_sta_firmware_ver == 10102 ||
 1696              sc->sc_sta_firmware_ver == 20102)) {
 1697                 char ident[12];
 1698                 memset(ident, 0, sizeof(ident));
 1699                 len = sizeof(ident);
 1700                 /* value should be the format like "V2.00-11" */
 1701                 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
 1702                     *(p = (char *)ident) >= 'A' &&
 1703                     p[2] == '.' && p[5] == '-' && p[8] == '\0') {
 1704                         sc->sc_firmware_type = WI_SYMBOL;
 1705                         sc->sc_sta_firmware_ver = (p[1] - '') * 10000 +
 1706                             (p[3] - '') * 1000 + (p[4] - '') * 100 +
 1707                             (p[6] - '') * 10 + (p[7] - '');
 1708                 }
 1709         }
 1710         if (bootverbose) {
 1711                 device_printf(sc->sc_dev, "%s Firmware: ",
 1712                     wi_firmware_names[sc->sc_firmware_type]);
 1713                 if (sc->sc_firmware_type != WI_LUCENT)  /* XXX */
 1714                         printf("Primary (%u.%u.%u), ",
 1715                             sc->sc_pri_firmware_ver / 10000,
 1716                             (sc->sc_pri_firmware_ver % 10000) / 100,
 1717                             sc->sc_pri_firmware_ver % 100);
 1718                 printf("Station (%u.%u.%u)\n",
 1719                     sc->sc_sta_firmware_ver / 10000,
 1720                     (sc->sc_sta_firmware_ver % 10000) / 100,
 1721                     sc->sc_sta_firmware_ver % 100);
 1722         }
 1723 }
 1724 
 1725 static int
 1726 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
 1727 {
 1728         struct wi_ssid ssid;
 1729 
 1730         if (buflen > IEEE80211_NWID_LEN)
 1731                 return ENOBUFS;
 1732         memset(&ssid, 0, sizeof(ssid));
 1733         ssid.wi_len = htole16(buflen);
 1734         memcpy(ssid.wi_ssid, buf, buflen);
 1735         return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
 1736 }
 1737 
 1738 static int
 1739 wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap)
 1740 {
 1741         static const uint16_t lucent_rates[12] = {
 1742             [ 0] = 3,   /* auto */
 1743             [ 1] = 1,   /* 1Mb/s */
 1744             [ 2] = 2,   /* 2Mb/s */
 1745             [ 5] = 4,   /* 5.5Mb/s */
 1746             [11] = 5    /* 11Mb/s */
 1747         };
 1748         static const uint16_t intersil_rates[12] = {
 1749             [ 0] = 0xf, /* auto */
 1750             [ 1] = 0,   /* 1Mb/s */
 1751             [ 2] = 1,   /* 2Mb/s */
 1752             [ 5] = 2,   /* 5.5Mb/s */
 1753             [11] = 3,   /* 11Mb/s */
 1754         };
 1755         const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ?
 1756             lucent_rates : intersil_rates;
 1757         struct ieee80211com *ic = vap->iv_ic;
 1758         const struct ieee80211_txparam *tp;
 1759 
 1760         tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
 1761         return wi_write_val(sc, WI_RID_TX_RATE,
 1762             (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ?
 1763                 rates[0] : rates[tp->ucastrate / 2]));
 1764 }
 1765 
 1766 static int
 1767 wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap)
 1768 {
 1769         int error = 0;
 1770         int i, keylen;
 1771         u_int16_t val;
 1772         struct wi_key wkey[IEEE80211_WEP_NKID];
 1773 
 1774         switch (sc->sc_firmware_type) {
 1775         case WI_LUCENT:
 1776                 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0;
 1777                 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
 1778                 if (error)
 1779                         break;
 1780                 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
 1781                         break;
 1782                 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey);
 1783                 if (error)
 1784                         break;
 1785                 memset(wkey, 0, sizeof(wkey));
 1786                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
 1787                         keylen = vap->iv_nw_keys[i].wk_keylen;
 1788                         wkey[i].wi_keylen = htole16(keylen);
 1789                         memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key,
 1790                             keylen);
 1791                 }
 1792                 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
 1793                     wkey, sizeof(wkey));
 1794                 sc->sc_encryption = 0;
 1795                 break;
 1796 
 1797         case WI_INTERSIL:
 1798                 val = HOST_ENCRYPT | HOST_DECRYPT;
 1799                 if (vap->iv_flags & IEEE80211_F_PRIVACY) {
 1800                         /*
 1801                          * ONLY HWB3163 EVAL-CARD Firmware version
 1802                          * less than 0.8 variant2
 1803                          *
 1804                          *   If promiscuous mode disable, Prism2 chip
 1805                          *  does not work with WEP .
 1806                          * It is under investigation for details.
 1807                          * (ichiro@netbsd.org)
 1808                          */
 1809                         if (sc->sc_sta_firmware_ver < 802 ) {
 1810                                 /* firm ver < 0.8 variant 2 */
 1811                                 wi_write_val(sc, WI_RID_PROMISC, 1);
 1812                         }
 1813                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
 1814                             vap->iv_bss->ni_authmode);
 1815                         val |= PRIVACY_INVOKED;
 1816                 } else {
 1817                         wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN);
 1818                 }
 1819                 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
 1820                 if (error)
 1821                         break;
 1822                 sc->sc_encryption = val;
 1823                 if ((val & PRIVACY_INVOKED) == 0)
 1824                         break;
 1825                 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey);
 1826                 break;
 1827         }
 1828         return error;
 1829 }
 1830 
 1831 static int
 1832 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
 1833 {
 1834         int i, s = 0;
 1835 
 1836         if (sc->wi_gone)
 1837                 return (ENODEV);
 1838 
 1839         /* wait for the busy bit to clear */
 1840         for (i = sc->wi_cmd_count; i > 0; i--) {        /* 500ms */
 1841                 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
 1842                         break;
 1843                 DELAY(1*1000);  /* 1ms */
 1844         }
 1845         if (i == 0) {
 1846                 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n",
 1847                    __func__, cmd);
 1848                 sc->wi_gone = 1;
 1849                 return(ETIMEDOUT);
 1850         }
 1851 
 1852         CSR_WRITE_2(sc, WI_PARAM0, val0);
 1853         CSR_WRITE_2(sc, WI_PARAM1, val1);
 1854         CSR_WRITE_2(sc, WI_PARAM2, val2);
 1855         CSR_WRITE_2(sc, WI_COMMAND, cmd);
 1856 
 1857         if (cmd == WI_CMD_INI) {
 1858                 /* XXX: should sleep here. */
 1859                 DELAY(100*1000);                /* 100ms delay for init */
 1860         }
 1861         for (i = 0; i < WI_TIMEOUT; i++) {
 1862                 /*
 1863                  * Wait for 'command complete' bit to be
 1864                  * set in the event status register.
 1865                  */
 1866                 s = CSR_READ_2(sc, WI_EVENT_STAT);
 1867                 if (s & WI_EV_CMD) {
 1868                         /* Ack the event and read result code. */
 1869                         s = CSR_READ_2(sc, WI_STATUS);
 1870                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
 1871                         if (s & WI_STAT_CMD_RESULT) {
 1872                                 return(EIO);
 1873                         }
 1874                         break;
 1875                 }
 1876                 DELAY(WI_DELAY);
 1877         }
 1878 
 1879         if (i == WI_TIMEOUT) {
 1880                 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; "
 1881                     "event status 0x%04x\n", __func__, cmd, s);
 1882                 if (s == 0xffff)
 1883                         sc->wi_gone = 1;
 1884                 return(ETIMEDOUT);
 1885         }
 1886         return (0);
 1887 }
 1888 
 1889 static int
 1890 wi_seek_bap(struct wi_softc *sc, int id, int off)
 1891 {
 1892         int i, status;
 1893 
 1894         CSR_WRITE_2(sc, WI_SEL0, id);
 1895         CSR_WRITE_2(sc, WI_OFF0, off);
 1896 
 1897         for (i = 0; ; i++) {
 1898                 status = CSR_READ_2(sc, WI_OFF0);
 1899                 if ((status & WI_OFF_BUSY) == 0)
 1900                         break;
 1901                 if (i == WI_TIMEOUT) {
 1902                         device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n",
 1903                             __func__, id, off);
 1904                         sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
 1905                         if (status == 0xffff)
 1906                                 sc->wi_gone = 1;
 1907                         return ETIMEDOUT;
 1908                 }
 1909                 DELAY(1);
 1910         }
 1911         if (status & WI_OFF_ERR) {
 1912                 device_printf(sc->sc_dev, "%s: error, id %x off %x\n",
 1913                     __func__, id, off);
 1914                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
 1915                 return EIO;
 1916         }
 1917         sc->sc_bap_id = id;
 1918         sc->sc_bap_off = off;
 1919         return 0;
 1920 }
 1921 
 1922 static int
 1923 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
 1924 {
 1925         int error, cnt;
 1926 
 1927         if (buflen == 0)
 1928                 return 0;
 1929         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
 1930                 if ((error = wi_seek_bap(sc, id, off)) != 0)
 1931                         return error;
 1932         }
 1933         cnt = (buflen + 1) / 2;
 1934         CSR_READ_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt);
 1935         sc->sc_bap_off += cnt * 2;
 1936         return 0;
 1937 }
 1938 
 1939 static int
 1940 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
 1941 {
 1942         int error, cnt;
 1943 
 1944         if (buflen == 0)
 1945                 return 0;
 1946 
 1947         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
 1948                 if ((error = wi_seek_bap(sc, id, off)) != 0)
 1949                         return error;
 1950         }
 1951         cnt = (buflen + 1) / 2;
 1952         CSR_WRITE_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt);
 1953         sc->sc_bap_off += cnt * 2;
 1954 
 1955         return 0;
 1956 }
 1957 
 1958 static int
 1959 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
 1960 {
 1961         int error, len;
 1962         struct mbuf *m;
 1963 
 1964         for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
 1965                 if (m->m_len == 0)
 1966                         continue;
 1967 
 1968                 len = min(m->m_len, totlen);
 1969 
 1970                 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
 1971                         m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
 1972                         return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
 1973                             totlen);
 1974                 }
 1975 
 1976                 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
 1977                         return error;
 1978 
 1979                 off += m->m_len;
 1980                 totlen -= len;
 1981         }
 1982         return 0;
 1983 }
 1984 
 1985 static int
 1986 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
 1987 {
 1988         int i;
 1989 
 1990         if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
 1991                 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n",
 1992                     __func__, len);
 1993                 return ENOMEM;
 1994         }
 1995 
 1996         for (i = 0; i < WI_TIMEOUT; i++) {
 1997                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
 1998                         break;
 1999                 DELAY(1);
 2000         }
 2001         if (i == WI_TIMEOUT) {
 2002                 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__);
 2003                 return ETIMEDOUT;
 2004         }
 2005         *idp = CSR_READ_2(sc, WI_ALLOC_FID);
 2006         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
 2007         return 0;
 2008 }
 2009 
 2010 static int
 2011 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
 2012 {
 2013         int error, len;
 2014         u_int16_t ltbuf[2];
 2015 
 2016         /* Tell the NIC to enter record read mode. */
 2017         error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
 2018         if (error)
 2019                 return error;
 2020 
 2021         error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
 2022         if (error)
 2023                 return error;
 2024 
 2025         if (le16toh(ltbuf[1]) != rid) {
 2026                 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n",
 2027                     rid, le16toh(ltbuf[1]));
 2028                 return EIO;
 2029         }
 2030         len = (le16toh(ltbuf[0]) - 1) * 2;       /* already got rid */
 2031         if (*buflenp < len) {
 2032                 device_printf(sc->sc_dev, "record buffer is too small, "
 2033                     "rid=%x, size=%d, len=%d\n",
 2034                     rid, *buflenp, len);
 2035                 return ENOSPC;
 2036         }
 2037         *buflenp = len;
 2038         return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
 2039 }
 2040 
 2041 static int
 2042 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen)
 2043 {
 2044         int error;
 2045         u_int16_t ltbuf[2];
 2046 
 2047         ltbuf[0] = htole16((buflen + 1) / 2 + 1);        /* includes rid */
 2048         ltbuf[1] = htole16(rid);
 2049 
 2050         error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
 2051         if (error) {
 2052                 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n",
 2053                     __func__, rid);
 2054                 return error;
 2055         }
 2056         error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
 2057         if (error) {
 2058                 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n",
 2059                     __func__, rid);
 2060                 return error;
 2061         }
 2062 
 2063         return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
 2064 }
 2065 
 2066 static int
 2067 wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie)
 2068 {
 2069         /* NB: 42 bytes is probably ok to have on the stack */
 2070         char buf[sizeof(uint16_t) + 40];
 2071 
 2072         if (ie->ie_len > 40)
 2073                 return EINVAL;
 2074         /* NB: firmware requires 16-bit ie length before ie data */
 2075         *(uint16_t *) buf = htole16(ie->ie_len);
 2076         memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len);
 2077         return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t));
 2078 }
 2079 
 2080 int
 2081 wi_alloc(device_t dev, int rid)
 2082 {
 2083         struct wi_softc *sc = device_get_softc(dev);
 2084 
 2085         if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
 2086                 sc->iobase_rid = rid;
 2087                 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
 2088                     &sc->iobase_rid, 0, ~0, (1 << 6),
 2089                     rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
 2090                 if (sc->iobase == NULL) {
 2091                         device_printf(dev, "No I/O space?!\n");
 2092                         return ENXIO;
 2093                 }
 2094 
 2095                 sc->wi_io_addr = rman_get_start(sc->iobase);
 2096                 sc->wi_btag = rman_get_bustag(sc->iobase);
 2097                 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
 2098         } else {
 2099                 sc->mem_rid = rid;
 2100                 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
 2101                     &sc->mem_rid, RF_ACTIVE);
 2102                 if (sc->mem == NULL) {
 2103                         device_printf(dev, "No Mem space on prism2.5?\n");
 2104                         return ENXIO;
 2105                 }
 2106 
 2107                 sc->wi_btag = rman_get_bustag(sc->mem);
 2108                 sc->wi_bhandle = rman_get_bushandle(sc->mem);
 2109         }
 2110 
 2111         sc->irq_rid = 0;
 2112         sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
 2113             RF_ACTIVE |
 2114             ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
 2115         if (sc->irq == NULL) {
 2116                 wi_free(dev);
 2117                 device_printf(dev, "No irq?!\n");
 2118                 return ENXIO;
 2119         }
 2120 
 2121         sc->sc_dev = dev;
 2122         sc->sc_unit = device_get_unit(dev);
 2123         return 0;
 2124 }
 2125 
 2126 void
 2127 wi_free(device_t dev)
 2128 {
 2129         struct wi_softc *sc = device_get_softc(dev);
 2130 
 2131         if (sc->iobase != NULL) {
 2132                 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
 2133                 sc->iobase = NULL;
 2134         }
 2135         if (sc->irq != NULL) {
 2136                 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
 2137                 sc->irq = NULL;
 2138         }
 2139         if (sc->mem != NULL) {
 2140                 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
 2141                 sc->mem = NULL;
 2142         }
 2143 }

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