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: releng/9.2/sys/dev/wi/if_wi.c 248085 2013-03-09 02:36:32Z marius $");
   64 
   65 #define WI_HERMES_STATS_WAR     /* Work around stats counter bug. */
   66 
   67 #include <sys/param.h>
   68 #include <sys/systm.h>
   69 #include <sys/endian.h>
   70 #include <sys/sockio.h>
   71 #include <sys/mbuf.h>
   72 #include <sys/priv.h>
   73 #include <sys/proc.h>
   74 #include <sys/kernel.h>
   75 #include <sys/socket.h>
   76 #include <sys/module.h>
   77 #include <sys/bus.h>
   78 #include <sys/random.h>
   79 #include <sys/syslog.h>
   80 #include <sys/sysctl.h>
   81 
   82 #include <machine/bus.h>
   83 #include <machine/resource.h>
   84 #include <machine/atomic.h>
   85 #include <sys/rman.h>
   86 
   87 #include <net/if.h>
   88 #include <net/if_arp.h>
   89 #include <net/ethernet.h>
   90 #include <net/if_dl.h>
   91 #include <net/if_llc.h>
   92 #include <net/if_media.h>
   93 #include <net/if_types.h>
   94 
   95 #include <net80211/ieee80211_var.h>
   96 #include <net80211/ieee80211_ioctl.h>
   97 #include <net80211/ieee80211_radiotap.h>
   98 
   99 #include <netinet/in.h>
  100 #include <netinet/in_systm.h>
  101 #include <netinet/in_var.h>
  102 #include <netinet/ip.h>
  103 #include <netinet/if_ether.h>
  104 
  105 #include <net/bpf.h>
  106 
  107 #include <dev/wi/if_wavelan_ieee.h>
  108 #include <dev/wi/if_wireg.h>
  109 #include <dev/wi/if_wivar.h>
  110 
  111 static struct ieee80211vap *wi_vap_create(struct ieee80211com *,
  112                     const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
  113                     const uint8_t [IEEE80211_ADDR_LEN],
  114                     const uint8_t [IEEE80211_ADDR_LEN]);
  115 static void wi_vap_delete(struct ieee80211vap *vap);
  116 static void wi_stop_locked(struct wi_softc *sc, int disable);
  117 static void wi_start_locked(struct ifnet *);
  118 static void wi_start(struct ifnet *);
  119 static int  wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr,
  120                 struct mbuf *m0);
  121 static int  wi_raw_xmit(struct ieee80211_node *, struct mbuf *,
  122                 const struct ieee80211_bpf_params *);
  123 static int  wi_newstate_sta(struct ieee80211vap *, enum ieee80211_state, int);
  124 static int  wi_newstate_hostap(struct ieee80211vap *, enum ieee80211_state,
  125                 int);
  126 static void wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
  127                 int subtype, int rssi, int nf);
  128 static int  wi_reset(struct wi_softc *);
  129 static void wi_watchdog(void *);
  130 static int  wi_ioctl(struct ifnet *, u_long, caddr_t);
  131 static void wi_media_status(struct ifnet *, struct ifmediareq *);
  132 
  133 static void wi_rx_intr(struct wi_softc *);
  134 static void wi_tx_intr(struct wi_softc *);
  135 static void wi_tx_ex_intr(struct wi_softc *);
  136 
  137 static void wi_info_intr(struct wi_softc *);
  138 
  139 static int  wi_write_txrate(struct wi_softc *, struct ieee80211vap *);
  140 static int  wi_write_wep(struct wi_softc *, struct ieee80211vap *);
  141 static int  wi_write_multi(struct wi_softc *);
  142 static void wi_update_mcast(struct ifnet *);
  143 static void wi_update_promisc(struct ifnet *);
  144 static int  wi_alloc_fid(struct wi_softc *, int, int *);
  145 static void wi_read_nicid(struct wi_softc *);
  146 static int  wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
  147 
  148 static int  wi_cmd(struct wi_softc *, int, int, int, int);
  149 static int  wi_seek_bap(struct wi_softc *, int, int);
  150 static int  wi_read_bap(struct wi_softc *, int, int, void *, int);
  151 static int  wi_write_bap(struct wi_softc *, int, int, void *, int);
  152 static int  wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
  153 static int  wi_read_rid(struct wi_softc *, int, void *, int *);
  154 static int  wi_write_rid(struct wi_softc *, int, void *, int);
  155 static int  wi_write_appie(struct wi_softc *, int, const struct ieee80211_appie *);
  156 
  157 static void wi_scan_start(struct ieee80211com *);
  158 static void wi_scan_end(struct ieee80211com *);
  159 static void wi_set_channel(struct ieee80211com *);
  160         
  161 static __inline int
  162 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val)
  163 {
  164 
  165         val = htole16(val);
  166         return wi_write_rid(sc, rid, &val, sizeof(val));
  167 }
  168 
  169 static SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0,
  170             "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 #define DPRINTF(X)      if (wi_debug) printf X
  184 #else
  185 #define DPRINTF(X)
  186 #endif
  187 
  188 #define WI_INTRS        (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
  189 
  190 struct wi_card_ident wi_card_ident[] = {
  191         /* CARD_ID                      CARD_NAME               FIRM_TYPE */
  192         { WI_NIC_LUCENT_ID,             WI_NIC_LUCENT_STR,      WI_LUCENT },
  193         { WI_NIC_SONY_ID,               WI_NIC_SONY_STR,        WI_LUCENT },
  194         { WI_NIC_LUCENT_EMB_ID,         WI_NIC_LUCENT_EMB_STR,  WI_LUCENT },
  195         { WI_NIC_EVB2_ID,               WI_NIC_EVB2_STR,        WI_INTERSIL },
  196         { WI_NIC_HWB3763_ID,            WI_NIC_HWB3763_STR,     WI_INTERSIL },
  197         { WI_NIC_HWB3163_ID,            WI_NIC_HWB3163_STR,     WI_INTERSIL },
  198         { WI_NIC_HWB3163B_ID,           WI_NIC_HWB3163B_STR,    WI_INTERSIL },
  199         { WI_NIC_EVB3_ID,               WI_NIC_EVB3_STR,        WI_INTERSIL },
  200         { WI_NIC_HWB1153_ID,            WI_NIC_HWB1153_STR,     WI_INTERSIL },
  201         { WI_NIC_P2_SST_ID,             WI_NIC_P2_SST_STR,      WI_INTERSIL },
  202         { WI_NIC_EVB2_SST_ID,           WI_NIC_EVB2_SST_STR,    WI_INTERSIL },
  203         { WI_NIC_3842_EVA_ID,           WI_NIC_3842_EVA_STR,    WI_INTERSIL },
  204         { WI_NIC_3842_PCMCIA_AMD_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
  205         { WI_NIC_3842_PCMCIA_SST_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
  206         { WI_NIC_3842_PCMCIA_ATL_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
  207         { WI_NIC_3842_PCMCIA_ATS_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
  208         { WI_NIC_3842_MINI_AMD_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
  209         { WI_NIC_3842_MINI_SST_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
  210         { WI_NIC_3842_MINI_ATL_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
  211         { WI_NIC_3842_MINI_ATS_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
  212         { WI_NIC_3842_PCI_AMD_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
  213         { WI_NIC_3842_PCI_SST_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
  214         { WI_NIC_3842_PCI_ATS_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
  215         { WI_NIC_3842_PCI_ATL_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
  216         { WI_NIC_P3_PCMCIA_AMD_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
  217         { WI_NIC_P3_PCMCIA_SST_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
  218         { WI_NIC_P3_PCMCIA_ATL_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
  219         { WI_NIC_P3_PCMCIA_ATS_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
  220         { WI_NIC_P3_MINI_AMD_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
  221         { WI_NIC_P3_MINI_SST_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
  222         { WI_NIC_P3_MINI_ATL_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
  223         { WI_NIC_P3_MINI_ATS_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
  224         { 0,    NULL,   0 },
  225 };
  226 
  227 static char *wi_firmware_names[] = { "none", "Hermes", "Intersil", "Symbol" };
  228 
  229 devclass_t wi_devclass;
  230 
  231 int
  232 wi_attach(device_t dev)
  233 {
  234         struct wi_softc *sc = device_get_softc(dev);
  235         struct ieee80211com *ic;
  236         struct ifnet *ifp;
  237         int i, nrates, buflen;
  238         u_int16_t val;
  239         u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE];
  240         struct ieee80211_rateset *rs;
  241         struct sysctl_ctx_list *sctx;
  242         struct sysctl_oid *soid;
  243         static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = {
  244                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
  245         };
  246         int error;
  247         uint8_t macaddr[IEEE80211_ADDR_LEN];
  248 
  249         ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
  250         if (ifp == NULL) {
  251                 device_printf(dev, "can not if_alloc\n");
  252                 wi_free(dev);
  253                 return ENOSPC;
  254         }
  255         ic = ifp->if_l2com;
  256 
  257         sc->sc_firmware_type = WI_NOTYPE;
  258         sc->wi_cmd_count = 500;
  259         /* Reset the NIC. */
  260         if (wi_reset(sc) != 0) {
  261                 wi_free(dev);
  262                 return ENXIO;           /* XXX */
  263         }
  264 
  265         /* Read NIC identification */
  266         wi_read_nicid(sc);
  267         switch (sc->sc_firmware_type) {
  268         case WI_LUCENT:
  269                 if (sc->sc_sta_firmware_ver < 60006)
  270                         goto reject;
  271                 break;
  272         case WI_INTERSIL:
  273                 if (sc->sc_sta_firmware_ver < 800)
  274                         goto reject;
  275                 break;
  276         default:
  277         reject:
  278                 device_printf(dev, "Sorry, this card is not supported "
  279                     "(type %d, firmware ver %d)\n",
  280                     sc->sc_firmware_type, sc->sc_sta_firmware_ver);
  281                 wi_free(dev);
  282                 return EOPNOTSUPP; 
  283         }
  284 
  285         /* Export info about the device via sysctl */
  286         sctx = device_get_sysctl_ctx(dev);
  287         soid = device_get_sysctl_tree(dev);
  288         SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
  289             "firmware_type", CTLFLAG_RD,
  290             wi_firmware_names[sc->sc_firmware_type], 0,
  291             "Firmware type string");
  292         SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version",
  293             CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0,
  294             "Station Firmware version");
  295         if (sc->sc_firmware_type == WI_INTERSIL)
  296                 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
  297                     "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0,
  298                     "Primary Firmware version");
  299         SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id",
  300             CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id");
  301         SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name",
  302             CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name");
  303 
  304         mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
  305             MTX_DEF | MTX_RECURSE);
  306         callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0);
  307 
  308         /*
  309          * Read the station address.
  310          * And do it twice. I've seen PRISM-based cards that return
  311          * an error when trying to read it the first time, which causes
  312          * the probe to fail.
  313          */
  314         buflen = IEEE80211_ADDR_LEN;
  315         error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen);
  316         if (error != 0) {
  317                 buflen = IEEE80211_ADDR_LEN;
  318                 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen);
  319         }
  320         if (error || IEEE80211_ADDR_EQ(macaddr, empty_macaddr)) {
  321                 if (error != 0)
  322                         device_printf(dev, "mac read failed %d\n", error);
  323                 else {
  324                         device_printf(dev, "mac read failed (all zeros)\n");
  325                         error = ENXIO;
  326                 }
  327                 wi_free(dev);
  328                 return (error);
  329         }
  330 
  331         ifp->if_softc = sc;
  332         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
  333         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
  334         ifp->if_ioctl = wi_ioctl;
  335         ifp->if_start = wi_start;
  336         ifp->if_init = wi_init;
  337         IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
  338         ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
  339         IFQ_SET_READY(&ifp->if_snd);
  340 
  341         ic->ic_ifp = ifp;
  342         ic->ic_phytype = IEEE80211_T_DS;
  343         ic->ic_opmode = IEEE80211_M_STA;
  344         ic->ic_caps = IEEE80211_C_STA
  345                     | IEEE80211_C_PMGT
  346                     | IEEE80211_C_MONITOR
  347                     ;
  348 
  349         /*
  350          * Query the card for available channels and setup the
  351          * channel table.  We assume these are all 11b channels.
  352          */
  353         buflen = sizeof(val);
  354         if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
  355                 val = htole16(0x1fff);  /* assume 1-11 */
  356         KASSERT(val != 0, ("wi_attach: no available channels listed!"));
  357 
  358         val <<= 1;                      /* shift for base 1 indices */
  359         for (i = 1; i < 16; i++) {
  360                 struct ieee80211_channel *c;
  361 
  362                 if (!isset((u_int8_t*)&val, i))
  363                         continue;
  364                 c = &ic->ic_channels[ic->ic_nchans++];
  365                 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
  366                 c->ic_flags = IEEE80211_CHAN_B;
  367                 c->ic_ieee = i;
  368                 /* XXX txpowers? */
  369         }
  370 
  371         /*
  372          * Set flags based on firmware version.
  373          */
  374         switch (sc->sc_firmware_type) {
  375         case WI_LUCENT:
  376                 sc->sc_ntxbuf = 1;
  377                 ic->ic_caps |= IEEE80211_C_IBSS;
  378 
  379                 sc->sc_ibss_port = WI_PORTTYPE_BSS;
  380                 sc->sc_monitor_port = WI_PORTTYPE_ADHOC;
  381                 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
  382                 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
  383                 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
  384                 break;
  385         case WI_INTERSIL:
  386                 sc->sc_ntxbuf = WI_NTXBUF;
  387                 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR
  388                              |  WI_FLAGS_HAS_ROAMING;
  389                 /*
  390                  * Old firmware are slow, so give peace a chance.
  391                  */
  392                 if (sc->sc_sta_firmware_ver < 10000)
  393                         sc->wi_cmd_count = 5000;
  394                 if (sc->sc_sta_firmware_ver > 10101)
  395                         sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
  396                 ic->ic_caps |= IEEE80211_C_IBSS;
  397                 /*
  398                  * version 0.8.3 and newer are the only ones that are known
  399                  * to currently work.  Earlier versions can be made to work,
  400                  * at least according to the Linux driver but we require
  401                  * monitor mode so this is irrelevant.
  402                  */
  403                 ic->ic_caps |= IEEE80211_C_HOSTAP;
  404                 if (sc->sc_sta_firmware_ver >= 10603)
  405                         sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY;
  406                 if (sc->sc_sta_firmware_ver >= 10700) {
  407                         /*
  408                          * 1.7.0+ have the necessary support for sta mode WPA.
  409                          */
  410                         sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT;
  411                         ic->ic_caps |= IEEE80211_C_WPA;
  412                 }
  413 
  414                 sc->sc_ibss_port = WI_PORTTYPE_IBSS;
  415                 sc->sc_monitor_port = WI_PORTTYPE_APSILENT;
  416                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
  417                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
  418                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
  419                 break;
  420         }
  421 
  422         /*
  423          * Find out if we support WEP on this card.
  424          */
  425         buflen = sizeof(val);
  426         if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
  427             val != htole16(0))
  428                 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP;
  429 
  430         /* Find supported rates. */
  431         buflen = sizeof(ratebuf);
  432         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
  433         if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
  434                 nrates = le16toh(*(u_int16_t *)ratebuf);
  435                 if (nrates > IEEE80211_RATE_MAXSIZE)
  436                         nrates = IEEE80211_RATE_MAXSIZE;
  437                 rs->rs_nrates = 0;
  438                 for (i = 0; i < nrates; i++)
  439                         if (ratebuf[2+i])
  440                                 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
  441         } else {
  442                 /* XXX fallback on error? */
  443         }
  444 
  445         buflen = sizeof(val);
  446         if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
  447             wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
  448                 sc->sc_dbm_offset = le16toh(val);
  449         }
  450 
  451         sc->sc_portnum = WI_DEFAULT_PORT;
  452 
  453         ieee80211_ifattach(ic, macaddr);
  454         ic->ic_raw_xmit = wi_raw_xmit;
  455         ic->ic_scan_start = wi_scan_start;
  456         ic->ic_scan_end = wi_scan_end;
  457         ic->ic_set_channel = wi_set_channel;
  458 
  459         ic->ic_vap_create = wi_vap_create;
  460         ic->ic_vap_delete = wi_vap_delete;
  461         ic->ic_update_mcast = wi_update_mcast;
  462         ic->ic_update_promisc = wi_update_promisc;
  463 
  464         ieee80211_radiotap_attach(ic,
  465             &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th),
  466                 WI_TX_RADIOTAP_PRESENT,
  467             &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th),
  468                 WI_RX_RADIOTAP_PRESENT);
  469 
  470         if (bootverbose)
  471                 ieee80211_announce(ic);
  472 
  473         error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
  474             NULL, wi_intr, sc, &sc->wi_intrhand);
  475         if (error) {
  476                 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
  477                 ieee80211_ifdetach(ic);
  478                 if_free(sc->sc_ifp);
  479                 wi_free(dev);
  480                 return error;
  481         }
  482 
  483         return (0);
  484 }
  485 
  486 int
  487 wi_detach(device_t dev)
  488 {
  489         struct wi_softc *sc = device_get_softc(dev);
  490         struct ifnet *ifp = sc->sc_ifp;
  491         struct ieee80211com *ic = ifp->if_l2com;
  492 
  493         WI_LOCK(sc);
  494 
  495         /* check if device was removed */
  496         sc->wi_gone |= !bus_child_present(dev);
  497 
  498         wi_stop_locked(sc, 0);
  499         WI_UNLOCK(sc);
  500         ieee80211_ifdetach(ic);
  501 
  502         bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
  503         if_free(sc->sc_ifp);
  504         wi_free(dev);
  505         mtx_destroy(&sc->sc_mtx);
  506         return (0);
  507 }
  508 
  509 static struct ieee80211vap *
  510 wi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
  511     enum ieee80211_opmode opmode, int flags,
  512     const uint8_t bssid[IEEE80211_ADDR_LEN],
  513     const uint8_t mac[IEEE80211_ADDR_LEN])
  514 {
  515         struct wi_softc *sc = ic->ic_ifp->if_softc;
  516         struct wi_vap *wvp;
  517         struct ieee80211vap *vap;
  518 
  519         if (!TAILQ_EMPTY(&ic->ic_vaps))         /* only one at a time */
  520                 return NULL;
  521         wvp = (struct wi_vap *) malloc(sizeof(struct wi_vap),
  522             M_80211_VAP, M_NOWAIT | M_ZERO);
  523         if (wvp == NULL)
  524                 return NULL;
  525 
  526         vap = &wvp->wv_vap;
  527         ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
  528 
  529         vap->iv_max_aid = WI_MAX_AID;
  530 
  531         switch (opmode) {
  532         case IEEE80211_M_STA:
  533                 sc->sc_porttype = WI_PORTTYPE_BSS;
  534                 wvp->wv_newstate = vap->iv_newstate;
  535                 vap->iv_newstate = wi_newstate_sta;
  536                 /* need to filter mgt frames to avoid confusing state machine */
  537                 wvp->wv_recv_mgmt = vap->iv_recv_mgmt;
  538                 vap->iv_recv_mgmt = wi_recv_mgmt;
  539                 break;
  540         case IEEE80211_M_IBSS:
  541                 sc->sc_porttype = sc->sc_ibss_port;
  542                 wvp->wv_newstate = vap->iv_newstate;
  543                 vap->iv_newstate = wi_newstate_sta;
  544                 break;
  545         case IEEE80211_M_AHDEMO:
  546                 sc->sc_porttype = WI_PORTTYPE_ADHOC;
  547                 break;
  548         case IEEE80211_M_HOSTAP:
  549                 sc->sc_porttype = WI_PORTTYPE_HOSTAP;
  550                 wvp->wv_newstate = vap->iv_newstate;
  551                 vap->iv_newstate = wi_newstate_hostap;
  552                 break;
  553         case IEEE80211_M_MONITOR:
  554                 sc->sc_porttype = sc->sc_monitor_port;
  555                 break;
  556         default:
  557                 break;
  558         }
  559 
  560         /* complete setup */
  561         ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status);
  562         ic->ic_opmode = opmode;
  563         return vap;
  564 }
  565 
  566 static void
  567 wi_vap_delete(struct ieee80211vap *vap)
  568 {
  569         struct wi_vap *wvp = WI_VAP(vap);
  570 
  571         ieee80211_vap_detach(vap);
  572         free(wvp, M_80211_VAP);
  573 }
  574 
  575 int
  576 wi_shutdown(device_t dev)
  577 {
  578         struct wi_softc *sc = device_get_softc(dev);
  579 
  580         wi_stop(sc, 1);
  581         return (0);
  582 }
  583 
  584 void
  585 wi_intr(void *arg)
  586 {
  587         struct wi_softc *sc = arg;
  588         struct ifnet *ifp = sc->sc_ifp;
  589         u_int16_t status;
  590 
  591         WI_LOCK(sc);
  592 
  593         if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) {
  594                 CSR_WRITE_2(sc, WI_INT_EN, 0);
  595                 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
  596                 WI_UNLOCK(sc);
  597                 return;
  598         }
  599 
  600         /* Disable interrupts. */
  601         CSR_WRITE_2(sc, WI_INT_EN, 0);
  602 
  603         status = CSR_READ_2(sc, WI_EVENT_STAT);
  604         if (status & WI_EV_RX)
  605                 wi_rx_intr(sc);
  606         if (status & WI_EV_ALLOC)
  607                 wi_tx_intr(sc);
  608         if (status & WI_EV_TX_EXC)
  609                 wi_tx_ex_intr(sc);
  610         if (status & WI_EV_INFO)
  611                 wi_info_intr(sc);
  612         if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
  613             !IFQ_DRV_IS_EMPTY(&ifp->if_snd))
  614                 wi_start_locked(ifp);
  615 
  616         /* Re-enable interrupts. */
  617         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
  618 
  619         WI_UNLOCK(sc);
  620 
  621         return;
  622 }
  623 
  624 static void
  625 wi_enable(struct wi_softc *sc)
  626 {
  627         /* Enable interrupts */
  628         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
  629 
  630         /* enable port */
  631         wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
  632         sc->sc_enabled = 1;
  633 }
  634 
  635 static int
  636 wi_setup_locked(struct wi_softc *sc, int porttype, int mode,
  637         uint8_t mac[IEEE80211_ADDR_LEN])
  638 {
  639         int i;
  640 
  641         wi_reset(sc);
  642 
  643         wi_write_val(sc, WI_RID_PORTTYPE, porttype);
  644         wi_write_val(sc, WI_RID_CREATE_IBSS, mode);
  645         wi_write_val(sc, WI_RID_MAX_DATALEN, 2304);
  646         /* XXX IEEE80211_BPF_NOACK wants 0 */
  647         wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2);
  648         if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
  649                 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */
  650 
  651         wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN);
  652 
  653         /* Allocate fids for the card */
  654         sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
  655         for (i = 0; i < sc->sc_ntxbuf; i++) {
  656                 int error = wi_alloc_fid(sc, sc->sc_buflen,
  657                     &sc->sc_txd[i].d_fid);
  658                 if (error) {
  659                         device_printf(sc->sc_dev,
  660                             "tx buffer allocation failed (error %u)\n",
  661                             error);
  662                         return error;
  663                 }
  664                 sc->sc_txd[i].d_len = 0;
  665         }
  666         sc->sc_txcur = sc->sc_txnext = 0;
  667 
  668         return 0;
  669 }
  670 
  671 static void
  672 wi_init_locked(struct wi_softc *sc)
  673 {
  674         struct ifnet *ifp = sc->sc_ifp;
  675         int wasenabled;
  676 
  677         WI_LOCK_ASSERT(sc);
  678 
  679         wasenabled = sc->sc_enabled;
  680         if (wasenabled)
  681                 wi_stop_locked(sc, 1);
  682 
  683         if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) {
  684                 if_printf(ifp, "interface not running\n");
  685                 wi_stop_locked(sc, 1);
  686                 return;
  687         }
  688 
  689         ifp->if_drv_flags |= IFF_DRV_RUNNING;
  690         ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
  691 
  692         callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc);
  693 
  694         wi_enable(sc);                  /* Enable desired port */
  695 }
  696 
  697 void
  698 wi_init(void *arg)
  699 {
  700         struct wi_softc *sc = arg;
  701         struct ifnet *ifp = sc->sc_ifp;
  702         struct ieee80211com *ic = ifp->if_l2com;
  703 
  704         WI_LOCK(sc);
  705         wi_init_locked(sc);
  706         WI_UNLOCK(sc);
  707 
  708         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
  709                 ieee80211_start_all(ic);                /* start all vap's */
  710 }
  711 
  712 static void
  713 wi_stop_locked(struct wi_softc *sc, int disable)
  714 {
  715         struct ifnet *ifp = sc->sc_ifp;
  716 
  717         WI_LOCK_ASSERT(sc);
  718 
  719         if (sc->sc_enabled && !sc->wi_gone) {
  720                 CSR_WRITE_2(sc, WI_INT_EN, 0);
  721                 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
  722                 if (disable)
  723                         sc->sc_enabled = 0;
  724         } else if (sc->wi_gone && disable)      /* gone --> not enabled */
  725                 sc->sc_enabled = 0;
  726 
  727         callout_stop(&sc->sc_watchdog);
  728         sc->sc_tx_timer = 0;
  729         sc->sc_false_syns = 0;
  730 
  731         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
  732 }
  733 
  734 void
  735 wi_stop(struct wi_softc *sc, int disable)
  736 {
  737         WI_LOCK(sc);
  738         wi_stop_locked(sc, disable);
  739         WI_UNLOCK(sc);
  740 }
  741 
  742 static void
  743 wi_set_channel(struct ieee80211com *ic)
  744 {
  745         struct ifnet *ifp = ic->ic_ifp;
  746         struct wi_softc *sc = ifp->if_softc;
  747 
  748         DPRINTF(("%s: channel %d, %sscanning\n", __func__,
  749             ieee80211_chan2ieee(ic, ic->ic_curchan),
  750             ic->ic_flags & IEEE80211_F_SCAN ? "" : "!"));
  751 
  752         WI_LOCK(sc);
  753         wi_write_val(sc, WI_RID_OWN_CHNL,
  754             ieee80211_chan2ieee(ic, ic->ic_curchan));
  755         WI_UNLOCK(sc);
  756 }
  757 
  758 static void
  759 wi_scan_start(struct ieee80211com *ic)
  760 {
  761         struct ifnet *ifp = ic->ic_ifp;
  762         struct wi_softc *sc = ifp->if_softc;
  763         struct ieee80211_scan_state *ss = ic->ic_scan;
  764 
  765         DPRINTF(("%s\n", __func__));
  766 
  767         WI_LOCK(sc);
  768         /*
  769          * Switch device to monitor mode.
  770          */
  771         wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port);
  772         if (sc->sc_firmware_type == WI_INTERSIL) {
  773                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
  774                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
  775         }
  776         /* force full dwell time to compensate for firmware overhead */
  777         ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400);
  778         WI_UNLOCK(sc);
  779 
  780 }
  781 
  782 static void
  783 wi_scan_end(struct ieee80211com *ic)
  784 {
  785         struct ifnet *ifp = ic->ic_ifp;
  786         struct wi_softc *sc = ifp->if_softc;
  787 
  788         DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype));
  789 
  790         WI_LOCK(sc);
  791         wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype);
  792         if (sc->sc_firmware_type == WI_INTERSIL) {
  793                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
  794                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
  795         }
  796         WI_UNLOCK(sc);
  797 }
  798 
  799 static void
  800 wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
  801         int subtype, int rssi, int nf)
  802 {
  803         struct ieee80211vap *vap = ni->ni_vap;
  804 
  805         switch (subtype) {
  806         case IEEE80211_FC0_SUBTYPE_AUTH:
  807         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
  808         case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
  809                 /* NB: filter frames that trigger state changes */
  810                 return;
  811         }
  812         WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rssi, nf);
  813 }
  814 
  815 static int
  816 wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
  817 {
  818         struct ieee80211com *ic = vap->iv_ic;
  819         struct ifnet *ifp = ic->ic_ifp;
  820         struct ieee80211_node *bss;
  821         struct wi_softc *sc = ifp->if_softc;
  822 
  823         DPRINTF(("%s: %s -> %s\n", __func__,
  824                 ieee80211_state_name[vap->iv_state],
  825                 ieee80211_state_name[nstate]));
  826 
  827         if (nstate == IEEE80211_S_AUTH) {
  828                 WI_LOCK(sc);
  829                 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr);
  830 
  831                 if (vap->iv_flags & IEEE80211_F_PMGTON) {
  832                         wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
  833                         wi_write_val(sc, WI_RID_PM_ENABLED, 1);
  834                 }
  835                 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold);
  836                 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
  837                         wi_write_val(sc, WI_RID_FRAG_THRESH,
  838                             vap->iv_fragthreshold);
  839                 wi_write_txrate(sc, vap);
  840 
  841                 bss = vap->iv_bss;
  842                 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen);
  843                 wi_write_val(sc, WI_RID_OWN_CHNL,
  844                     ieee80211_chan2ieee(ic, bss->ni_chan));
  845 
  846                 /* Configure WEP. */
  847                 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP)
  848                         wi_write_wep(sc, vap);
  849                 else
  850                         sc->sc_encryption = 0;
  851 
  852                 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) &&
  853                     (vap->iv_flags & IEEE80211_F_WPA)) {
  854                         wi_write_val(sc, WI_RID_WPA_HANDLING, 1);
  855                         if (vap->iv_appie_wpa != NULL)
  856                                 wi_write_appie(sc, WI_RID_WPA_DATA,
  857                                     vap->iv_appie_wpa);
  858                 }
  859 
  860                 wi_enable(sc);          /* enable port */
  861 
  862                 /* Lucent firmware does not support the JOIN RID. */
  863                 if (sc->sc_firmware_type == WI_INTERSIL) {
  864                         struct wi_joinreq join;
  865 
  866                         memset(&join, 0, sizeof(join));
  867                         IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid);
  868                         join.wi_chan = htole16(
  869                             ieee80211_chan2ieee(ic, bss->ni_chan));
  870                         wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
  871                 }
  872                 WI_UNLOCK(sc);
  873 
  874                 /*
  875                  * NB: don't go through 802.11 layer, it'll send auth frame;
  876                  * instead we drive the state machine from the link status
  877                  * notification we get on association.
  878                  */
  879                 vap->iv_state = nstate;
  880                 return (0);
  881         }
  882         return WI_VAP(vap)->wv_newstate(vap, nstate, arg);
  883 }
  884 
  885 static int
  886 wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
  887 {
  888         struct ieee80211com *ic = vap->iv_ic;
  889         struct ifnet *ifp = ic->ic_ifp;
  890         struct ieee80211_node *bss;
  891         struct wi_softc *sc = ifp->if_softc;
  892         int error;
  893 
  894         DPRINTF(("%s: %s -> %s\n", __func__,
  895                 ieee80211_state_name[vap->iv_state],
  896                 ieee80211_state_name[nstate]));
  897 
  898         error = WI_VAP(vap)->wv_newstate(vap, nstate, arg);
  899         if (error == 0 && nstate == IEEE80211_S_RUN) {
  900                 WI_LOCK(sc);
  901                 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr);
  902 
  903                 bss = vap->iv_bss;
  904                 wi_write_ssid(sc, WI_RID_OWN_SSID,
  905                     bss->ni_essid, bss->ni_esslen);
  906                 wi_write_val(sc, WI_RID_OWN_CHNL,
  907                     ieee80211_chan2ieee(ic, bss->ni_chan));
  908                 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3);
  909                 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf);
  910                 wi_write_txrate(sc, vap);
  911 
  912                 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval);
  913                 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period);
  914 
  915                 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold);
  916                 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
  917                         wi_write_val(sc, WI_RID_FRAG_THRESH,
  918                             vap->iv_fragthreshold);
  919 
  920                 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) &&
  921                     (vap->iv_flags & IEEE80211_F_HIDESSID)) {
  922                         /*
  923                          * bit 0 means hide SSID in beacons,
  924                          * bit 1 means don't respond to bcast probe req
  925                          */
  926                         wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3);
  927                 }
  928 
  929                 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) &&
  930                     (vap->iv_flags & IEEE80211_F_WPA) && 
  931                     vap->iv_appie_wpa != NULL)
  932                         wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa);
  933 
  934                 wi_write_val(sc, WI_RID_PROMISC, 0);
  935 
  936                 /* Configure WEP. */
  937                 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP)
  938                         wi_write_wep(sc, vap);
  939                 else
  940                         sc->sc_encryption = 0;
  941 
  942                 wi_enable(sc);          /* enable port */
  943                 WI_UNLOCK(sc);
  944         }
  945         return error;
  946 }
  947 
  948 static void
  949 wi_start_locked(struct ifnet *ifp)
  950 {
  951         struct wi_softc *sc = ifp->if_softc;
  952         struct ieee80211_node *ni;
  953         struct ieee80211_frame *wh;
  954         struct mbuf *m0;
  955         struct ieee80211_key *k;
  956         struct wi_frame frmhdr;
  957         const struct llc *llc;
  958         int cur;
  959 
  960         WI_LOCK_ASSERT(sc);
  961 
  962         if (sc->wi_gone)
  963                 return;
  964 
  965         memset(&frmhdr, 0, sizeof(frmhdr));
  966         cur = sc->sc_txnext;
  967         for (;;) {
  968                 IFQ_DRV_DEQUEUE(&ifp->if_snd, m0);
  969                 if (m0 == NULL)
  970                         break;
  971                 if (sc->sc_txd[cur].d_len != 0) {
  972                         IFQ_DRV_PREPEND(&ifp->if_snd, m0);
  973                         ifp->if_drv_flags |= IFF_DRV_OACTIVE;
  974                         break;
  975                 }
  976                 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
  977 
  978                 /* reconstruct 802.3 header */
  979                 wh = mtod(m0, struct ieee80211_frame *);
  980                 switch (wh->i_fc[1]) {
  981                 case IEEE80211_FC1_DIR_TODS:
  982                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
  983                             wh->i_addr2);
  984                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
  985                             wh->i_addr3);
  986                         break;
  987                 case IEEE80211_FC1_DIR_NODS:
  988                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
  989                             wh->i_addr2);
  990                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
  991                             wh->i_addr1);
  992                         break;
  993                 case IEEE80211_FC1_DIR_FROMDS:
  994                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
  995                             wh->i_addr3);
  996                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
  997                             wh->i_addr1);
  998                         break;
  999                 }
 1000                 llc = (const struct llc *)(
 1001                     mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh));
 1002                 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type;
 1003                 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 1004                 if (wh->i_fc[1] & IEEE80211_FC1_WEP) {
 1005                         k = ieee80211_crypto_encap(ni, m0);
 1006                         if (k == NULL) {
 1007                                 ieee80211_free_node(ni);
 1008                                 m_freem(m0);
 1009                                 continue;
 1010                         }
 1011                         frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 1012                 }
 1013 
 1014                 if (ieee80211_radiotap_active_vap(ni->ni_vap)) {
 1015                         sc->sc_tx_th.wt_rate = ni->ni_txrate;
 1016                         ieee80211_radiotap_tx(ni->ni_vap, m0);
 1017                 }
 1018 
 1019                 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 1020                     (caddr_t)&frmhdr.wi_whdr);
 1021                 m_adj(m0, sizeof(struct ieee80211_frame));
 1022                 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 1023                 ieee80211_free_node(ni);
 1024                 if (wi_start_tx(ifp, &frmhdr, m0))
 1025                         continue;
 1026 
 1027                 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 1028                 ifp->if_opackets++;
 1029         }
 1030 }
 1031 
 1032 static void
 1033 wi_start(struct ifnet *ifp)
 1034 {
 1035         struct wi_softc *sc = ifp->if_softc;
 1036 
 1037         WI_LOCK(sc);
 1038         wi_start_locked(ifp);
 1039         WI_UNLOCK(sc);
 1040 }
 1041 
 1042 static int
 1043 wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0)
 1044 {
 1045         struct wi_softc *sc = ifp->if_softc;
 1046         int cur = sc->sc_txnext;
 1047         int fid, off, error;
 1048 
 1049         fid = sc->sc_txd[cur].d_fid;
 1050         off = sizeof(*frmhdr);
 1051         error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0
 1052              || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
 1053         m_freem(m0);
 1054         if (error) {
 1055                 ifp->if_oerrors++;
 1056                 return -1;
 1057         }
 1058         sc->sc_txd[cur].d_len = off;
 1059         if (sc->sc_txcur == cur) {
 1060                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
 1061                         if_printf(ifp, "xmit failed\n");
 1062                         sc->sc_txd[cur].d_len = 0;
 1063                         return -1;
 1064                 }
 1065                 sc->sc_tx_timer = 5;
 1066         }
 1067         return 0;
 1068 }
 1069 
 1070 static int
 1071 wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0,
 1072             const struct ieee80211_bpf_params *params)
 1073 {
 1074         struct ieee80211com *ic = ni->ni_ic;
 1075         struct ifnet *ifp = ic->ic_ifp;
 1076         struct ieee80211vap *vap = ni->ni_vap;
 1077         struct wi_softc *sc = ifp->if_softc;
 1078         struct ieee80211_key *k;
 1079         struct ieee80211_frame *wh;
 1080         struct wi_frame frmhdr;
 1081         int cur;
 1082         int rc = 0;
 1083 
 1084         WI_LOCK(sc);
 1085 
 1086         if (sc->wi_gone) {
 1087                 rc = ENETDOWN;
 1088                 goto out;
 1089         }
 1090         memset(&frmhdr, 0, sizeof(frmhdr));
 1091         cur = sc->sc_txnext;
 1092         if (sc->sc_txd[cur].d_len != 0) {
 1093                 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
 1094                 rc = ENOBUFS;
 1095                 goto out;
 1096         }
 1097         m0->m_pkthdr.rcvif = NULL;
 1098 
 1099         m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
 1100             (caddr_t)&frmhdr.wi_ehdr);
 1101         frmhdr.wi_ehdr.ether_type = 0;
 1102         wh = mtod(m0, struct ieee80211_frame *);
 1103                         
 1104         frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 1105         if (params && (params->ibp_flags & IEEE80211_BPF_NOACK))
 1106                 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY);
 1107         if ((wh->i_fc[1] & IEEE80211_FC1_WEP) &&
 1108             (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) {
 1109                 k = ieee80211_crypto_encap(ni, m0);
 1110                 if (k == NULL) {
 1111                         rc = ENOMEM;
 1112                         goto out;
 1113                 }
 1114                 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 1115         }
 1116         if (ieee80211_radiotap_active_vap(vap)) {
 1117                 sc->sc_tx_th.wt_rate = ni->ni_txrate;
 1118                 ieee80211_radiotap_tx(vap, m0);
 1119         }
 1120         m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 1121             (caddr_t)&frmhdr.wi_whdr);
 1122         m_adj(m0, sizeof(struct ieee80211_frame));
 1123         frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 1124         if (wi_start_tx(ifp, &frmhdr, m0) < 0) {
 1125                 m0 = NULL;
 1126                 rc = EIO;
 1127                 goto out;
 1128         }
 1129         m0 = NULL;
 1130 
 1131         sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 1132 out:
 1133         WI_UNLOCK(sc);
 1134 
 1135         if (m0 != NULL)
 1136                 m_freem(m0);
 1137         ieee80211_free_node(ni);
 1138         return rc;
 1139 }
 1140 
 1141 static int
 1142 wi_reset(struct wi_softc *sc)
 1143 {
 1144 #define WI_INIT_TRIES 3
 1145         int i, error = 0;
 1146 
 1147         for (i = 0; i < WI_INIT_TRIES; i++) {
 1148                 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0);
 1149                 if (error == 0)
 1150                         break;
 1151                 DELAY(WI_DELAY * 1000);
 1152         }
 1153         sc->sc_reset = 1;
 1154         if (i == WI_INIT_TRIES) {
 1155                 if_printf(sc->sc_ifp, "reset failed\n");
 1156                 return error;
 1157         }
 1158 
 1159         CSR_WRITE_2(sc, WI_INT_EN, 0);
 1160         CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
 1161 
 1162         /* Calibrate timer. */
 1163         wi_write_val(sc, WI_RID_TICK_TIME, 8);
 1164 
 1165         return 0;
 1166 #undef WI_INIT_TRIES
 1167 }
 1168 
 1169 static void
 1170 wi_watchdog(void *arg)
 1171 {
 1172         struct wi_softc *sc = arg;
 1173         struct ifnet *ifp = sc->sc_ifp;
 1174 
 1175         WI_LOCK_ASSERT(sc);
 1176 
 1177         if (!sc->sc_enabled)
 1178                 return;
 1179 
 1180         if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) {
 1181                 if_printf(ifp, "device timeout\n");
 1182                 ifp->if_oerrors++;
 1183                 wi_init_locked(ifp->if_softc);
 1184                 return;
 1185         }
 1186         callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc);
 1187 }
 1188 
 1189 static int
 1190 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 1191 {
 1192         struct wi_softc *sc = ifp->if_softc;
 1193         struct ieee80211com *ic = ifp->if_l2com;
 1194         struct ifreq *ifr = (struct ifreq *) data;
 1195         int error = 0, startall = 0;
 1196 
 1197         switch (cmd) {
 1198         case SIOCSIFFLAGS:
 1199                 WI_LOCK(sc);
 1200                 /*
 1201                  * Can't do promisc and hostap at the same time.  If all that's
 1202                  * changing is the promisc flag, try to short-circuit a call to
 1203                  * wi_init() by just setting PROMISC in the hardware.
 1204                  */
 1205                 if (ifp->if_flags & IFF_UP) {
 1206                         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
 1207                             ifp->if_drv_flags & IFF_DRV_RUNNING) {
 1208                                 if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) {
 1209                                         wi_write_val(sc, WI_RID_PROMISC,
 1210                                             (ifp->if_flags & IFF_PROMISC) != 0);
 1211                                 } else {
 1212                                         wi_init_locked(sc);
 1213                                         startall = 1;
 1214                                 }
 1215                         } else {
 1216                                 wi_init_locked(sc);
 1217                                 startall = 1;
 1218                         }
 1219                 } else {
 1220                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
 1221                                 wi_stop_locked(sc, 1);
 1222                         sc->wi_gone = 0;
 1223                 }
 1224                 sc->sc_if_flags = ifp->if_flags;
 1225                 WI_UNLOCK(sc);
 1226                 if (startall)
 1227                         ieee80211_start_all(ic);
 1228                 break;
 1229         case SIOCGIFMEDIA:
 1230                 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
 1231                 break;
 1232         case SIOCGIFADDR:
 1233                 error = ether_ioctl(ifp, cmd, data);
 1234                 break;
 1235         default:
 1236                 error = EINVAL;
 1237                 break;
 1238         }
 1239         return error;
 1240 }
 1241 
 1242 static void
 1243 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
 1244 {
 1245         struct ieee80211vap *vap = ifp->if_softc;
 1246         struct ieee80211com *ic = vap->iv_ic;
 1247         struct wi_softc *sc = ic->ic_ifp->if_softc;
 1248         u_int16_t val;
 1249         int rate, len;
 1250 
 1251         len = sizeof(val);
 1252         if (sc->sc_enabled &&
 1253             wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 &&
 1254             len == sizeof(val)) {
 1255                 /* convert to 802.11 rate */
 1256                 val = le16toh(val);
 1257                 rate = val * 2;
 1258                 if (sc->sc_firmware_type == WI_LUCENT) {
 1259                         if (rate == 10)
 1260                                 rate = 11;      /* 5.5Mbps */
 1261                 } else {
 1262                         if (rate == 4*2)
 1263                                 rate = 11;      /* 5.5Mbps */
 1264                         else if (rate == 8*2)
 1265                                 rate = 22;      /* 11Mbps */
 1266                 }
 1267                 vap->iv_bss->ni_txrate = rate;
 1268         }
 1269         ieee80211_media_status(ifp, imr);
 1270 }
 1271 
 1272 static void
 1273 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
 1274 {
 1275         struct ifnet *ifp = sc->sc_ifp;
 1276         struct ieee80211com *ic = ifp->if_l2com;
 1277         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
 1278         struct ieee80211_node *ni = vap->iv_bss;
 1279 
 1280         if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
 1281                 return;
 1282 
 1283         DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid)));
 1284         DPRINTF(("%s ?\n", ether_sprintf(new_bssid)));
 1285 
 1286         /* In promiscuous mode, the BSSID field is not a reliable
 1287          * indicator of the firmware's BSSID. Damp spurious
 1288          * change-of-BSSID indications.
 1289          */
 1290         if ((ifp->if_flags & IFF_PROMISC) != 0 &&
 1291             !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns,
 1292                          WI_MAX_FALSE_SYNS))
 1293                 return;
 1294 
 1295         sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1);
 1296 #if 0
 1297         /*
 1298          * XXX hack; we should create a new node with the new bssid
 1299          * and replace the existing ic_bss with it but since we don't
 1300          * process management frames to collect state we cheat by
 1301          * reusing the existing node as we know wi_newstate will be
 1302          * called and it will overwrite the node state.
 1303          */
 1304         ieee80211_sta_join(ic, ieee80211_ref_node(ni));
 1305 #endif
 1306 }
 1307 
 1308 static __noinline void
 1309 wi_rx_intr(struct wi_softc *sc)
 1310 {
 1311         struct ifnet *ifp = sc->sc_ifp;
 1312         struct ieee80211com *ic = ifp->if_l2com;
 1313         struct wi_frame frmhdr;
 1314         struct mbuf *m;
 1315         struct ieee80211_frame *wh;
 1316         struct ieee80211_node *ni;
 1317         int fid, len, off;
 1318         u_int8_t dir;
 1319         u_int16_t status;
 1320         int8_t rssi, nf;
 1321 
 1322         fid = CSR_READ_2(sc, WI_RX_FID);
 1323 
 1324         /* First read in the frame header */
 1325         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
 1326                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1327                 ifp->if_ierrors++;
 1328                 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid));
 1329                 return;
 1330         }
 1331 
 1332         /*
 1333          * Drop undecryptable or packets with receive errors here
 1334          */
 1335         status = le16toh(frmhdr.wi_status);
 1336         if (status & WI_STAT_ERRSTAT) {
 1337                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1338                 ifp->if_ierrors++;
 1339                 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status));
 1340                 return;
 1341         }
 1342 
 1343         len = le16toh(frmhdr.wi_dat_len);
 1344         off = ALIGN(sizeof(struct ieee80211_frame));
 1345 
 1346         /*
 1347          * Sometimes the PRISM2.x returns bogusly large frames. Except
 1348          * in monitor mode, just throw them away.
 1349          */
 1350         if (off + len > MCLBYTES) {
 1351                 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
 1352                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1353                         ifp->if_ierrors++;
 1354                         DPRINTF(("wi_rx_intr: oversized packet\n"));
 1355                         return;
 1356                 } else
 1357                         len = 0;
 1358         }
 1359 
 1360         if (off + len > MHLEN)
 1361                 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
 1362         else
 1363                 m = m_gethdr(M_NOWAIT, MT_DATA);
 1364         if (m == NULL) {
 1365                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1366                 ifp->if_ierrors++;
 1367                 DPRINTF(("wi_rx_intr: MGET failed\n"));
 1368                 return;
 1369         }
 1370         m->m_data += off - sizeof(struct ieee80211_frame);
 1371         memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
 1372         wi_read_bap(sc, fid, sizeof(frmhdr),
 1373             m->m_data + sizeof(struct ieee80211_frame), len);
 1374         m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
 1375         m->m_pkthdr.rcvif = ifp;
 1376 
 1377         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1378 
 1379         rssi = frmhdr.wi_rx_signal;
 1380         nf = frmhdr.wi_rx_silence;
 1381         if (ieee80211_radiotap_active(ic)) {
 1382                 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th;
 1383                 uint32_t rstamp;
 1384 
 1385                 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
 1386                     le16toh(frmhdr.wi_rx_tstamp1);
 1387                 tap->wr_tsf = htole64((uint64_t)rstamp);
 1388                 /* XXX replace divide by table */
 1389                 tap->wr_rate = frmhdr.wi_rx_rate / 5;
 1390                 tap->wr_flags = 0;
 1391                 if (frmhdr.wi_status & WI_STAT_PCF)
 1392                         tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP;
 1393                 if (m->m_flags & M_WEP)
 1394                         tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP;
 1395                 tap->wr_antsignal = rssi;
 1396                 tap->wr_antnoise = nf;
 1397         }
 1398 
 1399         /* synchronize driver's BSSID with firmware's BSSID */
 1400         wh = mtod(m, struct ieee80211_frame *);
 1401         dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
 1402         if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
 1403                 wi_sync_bssid(sc, wh->i_addr3);
 1404 
 1405         WI_UNLOCK(sc);
 1406 
 1407         ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
 1408         if (ni != NULL) {
 1409                 (void) ieee80211_input(ni, m, rssi, nf);
 1410                 ieee80211_free_node(ni);
 1411         } else
 1412                 (void) ieee80211_input_all(ic, m, rssi, nf);
 1413 
 1414         WI_LOCK(sc);
 1415 }
 1416 
 1417 static __noinline void
 1418 wi_tx_ex_intr(struct wi_softc *sc)
 1419 {
 1420         struct ifnet *ifp = sc->sc_ifp;
 1421         struct wi_frame frmhdr;
 1422         int fid;
 1423 
 1424         fid = CSR_READ_2(sc, WI_TX_CMP_FID);
 1425         /* Read in the frame header */
 1426         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
 1427                 u_int16_t status = le16toh(frmhdr.wi_status);
 1428                 /*
 1429                  * Spontaneous station disconnects appear as xmit
 1430                  * errors.  Don't announce them and/or count them
 1431                  * as an output error.
 1432                  */
 1433                 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
 1434                         if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
 1435                                 if_printf(ifp, "tx failed");
 1436                                 if (status & WI_TXSTAT_RET_ERR)
 1437                                         printf(", retry limit exceeded");
 1438                                 if (status & WI_TXSTAT_AGED_ERR)
 1439                                         printf(", max transmit lifetime exceeded");
 1440                                 if (status & WI_TXSTAT_DISCONNECT)
 1441                                         printf(", port disconnected");
 1442                                 if (status & WI_TXSTAT_FORM_ERR)
 1443                                         printf(", invalid format (data len %u src %6D)",
 1444                                                 le16toh(frmhdr.wi_dat_len),
 1445                                                 frmhdr.wi_ehdr.ether_shost, ":");
 1446                                 if (status & ~0xf)
 1447                                         printf(", status=0x%x", status);
 1448                                 printf("\n");
 1449                         }
 1450                         ifp->if_oerrors++;
 1451                 } else {
 1452                         DPRINTF(("port disconnected\n"));
 1453                         ifp->if_collisions++;   /* XXX */
 1454                 }
 1455         } else
 1456                 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid));
 1457         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
 1458 }
 1459 
 1460 static __noinline void
 1461 wi_tx_intr(struct wi_softc *sc)
 1462 {
 1463         struct ifnet *ifp = sc->sc_ifp;
 1464         int fid, cur;
 1465 
 1466         if (sc->wi_gone)
 1467                 return;
 1468 
 1469         fid = CSR_READ_2(sc, WI_ALLOC_FID);
 1470         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
 1471 
 1472         cur = sc->sc_txcur;
 1473         if (sc->sc_txd[cur].d_fid != fid) {
 1474                 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n",
 1475                     fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
 1476                 return;
 1477         }
 1478         sc->sc_tx_timer = 0;
 1479         sc->sc_txd[cur].d_len = 0;
 1480         sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
 1481         if (sc->sc_txd[cur].d_len == 0)
 1482                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 1483         else {
 1484                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
 1485                     0, 0)) {
 1486                         if_printf(ifp, "xmit failed\n");
 1487                         sc->sc_txd[cur].d_len = 0;
 1488                 } else {
 1489                         sc->sc_tx_timer = 5;
 1490                 }
 1491         }
 1492 }
 1493 
 1494 static __noinline void
 1495 wi_info_intr(struct wi_softc *sc)
 1496 {
 1497         struct ifnet *ifp = sc->sc_ifp;
 1498         struct ieee80211com *ic = ifp->if_l2com;
 1499         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
 1500         int i, fid, len, off;
 1501         u_int16_t ltbuf[2];
 1502         u_int16_t stat;
 1503         u_int32_t *ptr;
 1504 
 1505         fid = CSR_READ_2(sc, WI_INFO_FID);
 1506         wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
 1507 
 1508         switch (le16toh(ltbuf[1])) {
 1509         case WI_INFO_LINK_STAT:
 1510                 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
 1511                 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
 1512                 switch (le16toh(stat)) {
 1513                 case WI_INFO_LINK_STAT_CONNECTED:
 1514                         if (vap->iv_state == IEEE80211_S_RUN &&
 1515                             vap->iv_opmode != IEEE80211_M_IBSS)
 1516                                 break;
 1517                         /* fall thru... */
 1518                 case WI_INFO_LINK_STAT_AP_CHG:
 1519                         IEEE80211_LOCK(ic);
 1520                         vap->iv_bss->ni_associd = 1 | 0xc000;   /* NB: anything will do */
 1521                         ieee80211_new_state(vap, IEEE80211_S_RUN, 0);
 1522                         IEEE80211_UNLOCK(ic);
 1523                         break;
 1524                 case WI_INFO_LINK_STAT_AP_INR:
 1525                         break;
 1526                 case WI_INFO_LINK_STAT_DISCONNECTED:
 1527                         /* we dropped off the net; e.g. due to deauth/disassoc */
 1528                         IEEE80211_LOCK(ic);
 1529                         vap->iv_bss->ni_associd = 0;
 1530                         vap->iv_stats.is_rx_deauth++;
 1531                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
 1532                         IEEE80211_UNLOCK(ic);
 1533                         break;
 1534                 case WI_INFO_LINK_STAT_AP_OOR:
 1535                         /* XXX does this need to be per-vap? */
 1536                         ieee80211_beacon_miss(ic);
 1537                         break;
 1538                 case WI_INFO_LINK_STAT_ASSOC_FAILED:
 1539                         if (vap->iv_opmode == IEEE80211_M_STA)
 1540                                 ieee80211_new_state(vap, IEEE80211_S_SCAN,
 1541                                     IEEE80211_SCAN_FAIL_TIMEOUT);
 1542                         break;
 1543                 }
 1544                 break;
 1545         case WI_INFO_COUNTERS:
 1546                 /* some card versions have a larger stats structure */
 1547                 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
 1548                 ptr = (u_int32_t *)&sc->sc_stats;
 1549                 off = sizeof(ltbuf);
 1550                 for (i = 0; i < len; i++, off += 2, ptr++) {
 1551                         wi_read_bap(sc, fid, off, &stat, sizeof(stat));
 1552 #ifdef WI_HERMES_STATS_WAR
 1553                         if (stat & 0xf000)
 1554                                 stat = ~stat;
 1555 #endif
 1556                         *ptr += stat;
 1557                 }
 1558                 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries +
 1559                     sc->sc_stats.wi_tx_multi_retries +
 1560                     sc->sc_stats.wi_tx_retry_limit;
 1561                 break;
 1562         default:
 1563                 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid,
 1564                     le16toh(ltbuf[1]), le16toh(ltbuf[0])));
 1565                 break;
 1566         }
 1567         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
 1568 }
 1569 
 1570 static int
 1571 wi_write_multi(struct wi_softc *sc)
 1572 {
 1573         struct ifnet *ifp = sc->sc_ifp;
 1574         int n;
 1575         struct ifmultiaddr *ifma;
 1576         struct wi_mcast mlist;
 1577 
 1578         if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
 1579 allmulti:
 1580                 memset(&mlist, 0, sizeof(mlist));
 1581                 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
 1582                     sizeof(mlist));
 1583         }
 1584 
 1585         n = 0;
 1586         if_maddr_rlock(ifp);
 1587         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 1588                 if (ifma->ifma_addr->sa_family != AF_LINK)
 1589                         continue;
 1590                 if (n >= 16)
 1591                         goto allmulti;
 1592                 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
 1593                     (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
 1594                 n++;
 1595         }
 1596         if_maddr_runlock(ifp);
 1597         return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
 1598             IEEE80211_ADDR_LEN * n);
 1599 }
 1600 
 1601 static void
 1602 wi_update_mcast(struct ifnet *ifp)
 1603 {
 1604         wi_write_multi(ifp->if_softc);
 1605 }
 1606 
 1607 static void
 1608 wi_update_promisc(struct ifnet *ifp)
 1609 {
 1610         struct wi_softc *sc = ifp->if_softc;
 1611         struct ieee80211com *ic = ifp->if_l2com;
 1612 
 1613         WI_LOCK(sc);
 1614         /* XXX handle WEP special case handling? */
 1615         wi_write_val(sc, WI_RID_PROMISC, 
 1616             (ic->ic_opmode == IEEE80211_M_MONITOR ||
 1617              (ifp->if_flags & IFF_PROMISC)));
 1618         WI_UNLOCK(sc);
 1619 }
 1620 
 1621 static void
 1622 wi_read_nicid(struct wi_softc *sc)
 1623 {
 1624         struct wi_card_ident *id;
 1625         char *p;
 1626         int len;
 1627         u_int16_t ver[4];
 1628 
 1629         /* getting chip identity */
 1630         memset(ver, 0, sizeof(ver));
 1631         len = sizeof(ver);
 1632         wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
 1633 
 1634         sc->sc_firmware_type = WI_NOTYPE;
 1635         sc->sc_nic_id = le16toh(ver[0]);
 1636         for (id = wi_card_ident; id->card_name != NULL; id++) {
 1637                 if (sc->sc_nic_id == id->card_id) {
 1638                         sc->sc_nic_name = id->card_name;
 1639                         sc->sc_firmware_type = id->firm_type;
 1640                         break;
 1641                 }
 1642         }
 1643         if (sc->sc_firmware_type == WI_NOTYPE) {
 1644                 if (sc->sc_nic_id & 0x8000) {
 1645                         sc->sc_firmware_type = WI_INTERSIL;
 1646                         sc->sc_nic_name = "Unknown Prism chip";
 1647                 } else {
 1648                         sc->sc_firmware_type = WI_LUCENT;
 1649                         sc->sc_nic_name = "Unknown Lucent chip";
 1650                 }
 1651         }
 1652         if (bootverbose)
 1653                 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name);
 1654 
 1655         /* get primary firmware version (Only Prism chips) */
 1656         if (sc->sc_firmware_type != WI_LUCENT) {
 1657                 memset(ver, 0, sizeof(ver));
 1658                 len = sizeof(ver);
 1659                 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
 1660                 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
 1661                     le16toh(ver[3]) * 100 + le16toh(ver[1]);
 1662         }
 1663 
 1664         /* get station firmware version */
 1665         memset(ver, 0, sizeof(ver));
 1666         len = sizeof(ver);
 1667         wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
 1668         sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
 1669             le16toh(ver[3]) * 100 + le16toh(ver[1]);
 1670         if (sc->sc_firmware_type == WI_INTERSIL &&
 1671             (sc->sc_sta_firmware_ver == 10102 ||
 1672              sc->sc_sta_firmware_ver == 20102)) {
 1673                 char ident[12];
 1674                 memset(ident, 0, sizeof(ident));
 1675                 len = sizeof(ident);
 1676                 /* value should be the format like "V2.00-11" */
 1677                 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
 1678                     *(p = (char *)ident) >= 'A' &&
 1679                     p[2] == '.' && p[5] == '-' && p[8] == '\0') {
 1680                         sc->sc_firmware_type = WI_SYMBOL;
 1681                         sc->sc_sta_firmware_ver = (p[1] - '') * 10000 +
 1682                             (p[3] - '') * 1000 + (p[4] - '') * 100 +
 1683                             (p[6] - '') * 10 + (p[7] - '');
 1684                 }
 1685         }
 1686         if (bootverbose) {
 1687                 device_printf(sc->sc_dev, "%s Firmware: ",
 1688                     wi_firmware_names[sc->sc_firmware_type]);
 1689                 if (sc->sc_firmware_type != WI_LUCENT)  /* XXX */
 1690                         printf("Primary (%u.%u.%u), ",
 1691                             sc->sc_pri_firmware_ver / 10000,
 1692                             (sc->sc_pri_firmware_ver % 10000) / 100,
 1693                             sc->sc_pri_firmware_ver % 100);
 1694                 printf("Station (%u.%u.%u)\n",
 1695                     sc->sc_sta_firmware_ver / 10000,
 1696                     (sc->sc_sta_firmware_ver % 10000) / 100,
 1697                     sc->sc_sta_firmware_ver % 100);
 1698         }
 1699 }
 1700 
 1701 static int
 1702 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
 1703 {
 1704         struct wi_ssid ssid;
 1705 
 1706         if (buflen > IEEE80211_NWID_LEN)
 1707                 return ENOBUFS;
 1708         memset(&ssid, 0, sizeof(ssid));
 1709         ssid.wi_len = htole16(buflen);
 1710         memcpy(ssid.wi_ssid, buf, buflen);
 1711         return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
 1712 }
 1713 
 1714 static int
 1715 wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap)
 1716 {
 1717         static const uint16_t lucent_rates[12] = {
 1718             [ 0] = 3,   /* auto */
 1719             [ 1] = 1,   /* 1Mb/s */
 1720             [ 2] = 2,   /* 2Mb/s */
 1721             [ 5] = 4,   /* 5.5Mb/s */
 1722             [11] = 5    /* 11Mb/s */
 1723         };
 1724         static const uint16_t intersil_rates[12] = {
 1725             [ 0] = 0xf, /* auto */
 1726             [ 1] = 0,   /* 1Mb/s */
 1727             [ 2] = 1,   /* 2Mb/s */
 1728             [ 5] = 2,   /* 5.5Mb/s */
 1729             [11] = 3,   /* 11Mb/s */
 1730         };
 1731         const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ?
 1732             lucent_rates : intersil_rates;
 1733         struct ieee80211com *ic = vap->iv_ic;
 1734         const struct ieee80211_txparam *tp;
 1735 
 1736         tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
 1737         return wi_write_val(sc, WI_RID_TX_RATE,
 1738             (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ?
 1739                 rates[0] : rates[tp->ucastrate / 2]));
 1740 }
 1741 
 1742 static int
 1743 wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap)
 1744 {
 1745         int error = 0;
 1746         int i, keylen;
 1747         u_int16_t val;
 1748         struct wi_key wkey[IEEE80211_WEP_NKID];
 1749 
 1750         switch (sc->sc_firmware_type) {
 1751         case WI_LUCENT:
 1752                 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0;
 1753                 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
 1754                 if (error)
 1755                         break;
 1756                 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
 1757                         break;
 1758                 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey);
 1759                 if (error)
 1760                         break;
 1761                 memset(wkey, 0, sizeof(wkey));
 1762                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
 1763                         keylen = vap->iv_nw_keys[i].wk_keylen;
 1764                         wkey[i].wi_keylen = htole16(keylen);
 1765                         memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key,
 1766                             keylen);
 1767                 }
 1768                 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
 1769                     wkey, sizeof(wkey));
 1770                 sc->sc_encryption = 0;
 1771                 break;
 1772 
 1773         case WI_INTERSIL:
 1774                 val = HOST_ENCRYPT | HOST_DECRYPT;
 1775                 if (vap->iv_flags & IEEE80211_F_PRIVACY) {
 1776                         /*
 1777                          * ONLY HWB3163 EVAL-CARD Firmware version
 1778                          * less than 0.8 variant2
 1779                          *
 1780                          *   If promiscuous mode disable, Prism2 chip
 1781                          *  does not work with WEP .
 1782                          * It is under investigation for details.
 1783                          * (ichiro@netbsd.org)
 1784                          */
 1785                         if (sc->sc_sta_firmware_ver < 802 ) {
 1786                                 /* firm ver < 0.8 variant 2 */
 1787                                 wi_write_val(sc, WI_RID_PROMISC, 1);
 1788                         }
 1789                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
 1790                             vap->iv_bss->ni_authmode);
 1791                         val |= PRIVACY_INVOKED;
 1792                 } else {
 1793                         wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN);
 1794                 }
 1795                 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
 1796                 if (error)
 1797                         break;
 1798                 sc->sc_encryption = val;
 1799                 if ((val & PRIVACY_INVOKED) == 0)
 1800                         break;
 1801                 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey);
 1802                 break;
 1803         }
 1804         return error;
 1805 }
 1806 
 1807 static int
 1808 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
 1809 {
 1810         int i, s = 0;
 1811 
 1812         if (sc->wi_gone)
 1813                 return (ENODEV);
 1814 
 1815         /* wait for the busy bit to clear */
 1816         for (i = sc->wi_cmd_count; i > 0; i--) {        /* 500ms */
 1817                 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
 1818                         break;
 1819                 DELAY(1*1000);  /* 1ms */
 1820         }
 1821         if (i == 0) {
 1822                 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n",
 1823                    __func__, cmd);
 1824                 sc->wi_gone = 1;
 1825                 return(ETIMEDOUT);
 1826         }
 1827 
 1828         CSR_WRITE_2(sc, WI_PARAM0, val0);
 1829         CSR_WRITE_2(sc, WI_PARAM1, val1);
 1830         CSR_WRITE_2(sc, WI_PARAM2, val2);
 1831         CSR_WRITE_2(sc, WI_COMMAND, cmd);
 1832 
 1833         if (cmd == WI_CMD_INI) {
 1834                 /* XXX: should sleep here. */
 1835                 DELAY(100*1000);                /* 100ms delay for init */
 1836         }
 1837         for (i = 0; i < WI_TIMEOUT; i++) {
 1838                 /*
 1839                  * Wait for 'command complete' bit to be
 1840                  * set in the event status register.
 1841                  */
 1842                 s = CSR_READ_2(sc, WI_EVENT_STAT);
 1843                 if (s & WI_EV_CMD) {
 1844                         /* Ack the event and read result code. */
 1845                         s = CSR_READ_2(sc, WI_STATUS);
 1846                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
 1847                         if (s & WI_STAT_CMD_RESULT) {
 1848                                 return(EIO);
 1849                         }
 1850                         break;
 1851                 }
 1852                 DELAY(WI_DELAY);
 1853         }
 1854 
 1855         if (i == WI_TIMEOUT) {
 1856                 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; "
 1857                     "event status 0x%04x\n", __func__, cmd, s);
 1858                 if (s == 0xffff)
 1859                         sc->wi_gone = 1;
 1860                 return(ETIMEDOUT);
 1861         }
 1862         return (0);
 1863 }
 1864 
 1865 static int
 1866 wi_seek_bap(struct wi_softc *sc, int id, int off)
 1867 {
 1868         int i, status;
 1869 
 1870         CSR_WRITE_2(sc, WI_SEL0, id);
 1871         CSR_WRITE_2(sc, WI_OFF0, off);
 1872 
 1873         for (i = 0; ; i++) {
 1874                 status = CSR_READ_2(sc, WI_OFF0);
 1875                 if ((status & WI_OFF_BUSY) == 0)
 1876                         break;
 1877                 if (i == WI_TIMEOUT) {
 1878                         device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n",
 1879                             __func__, id, off);
 1880                         sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
 1881                         if (status == 0xffff)
 1882                                 sc->wi_gone = 1;
 1883                         return ETIMEDOUT;
 1884                 }
 1885                 DELAY(1);
 1886         }
 1887         if (status & WI_OFF_ERR) {
 1888                 device_printf(sc->sc_dev, "%s: error, id %x off %x\n",
 1889                     __func__, id, off);
 1890                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
 1891                 return EIO;
 1892         }
 1893         sc->sc_bap_id = id;
 1894         sc->sc_bap_off = off;
 1895         return 0;
 1896 }
 1897 
 1898 static int
 1899 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
 1900 {
 1901         u_int16_t *ptr;
 1902         int i, error, cnt;
 1903 
 1904         if (buflen == 0)
 1905                 return 0;
 1906         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
 1907                 if ((error = wi_seek_bap(sc, id, off)) != 0)
 1908                         return error;
 1909         }
 1910         cnt = (buflen + 1) / 2;
 1911         ptr = (u_int16_t *)buf;
 1912         for (i = 0; i < cnt; i++)
 1913                 *ptr++ = CSR_READ_2(sc, WI_DATA0);
 1914         sc->sc_bap_off += cnt * 2;
 1915         return 0;
 1916 }
 1917 
 1918 static int
 1919 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
 1920 {
 1921         u_int16_t *ptr;
 1922         int i, error, cnt;
 1923 
 1924         if (buflen == 0)
 1925                 return 0;
 1926 
 1927         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
 1928                 if ((error = wi_seek_bap(sc, id, off)) != 0)
 1929                         return error;
 1930         }
 1931         cnt = (buflen + 1) / 2;
 1932         ptr = (u_int16_t *)buf;
 1933         for (i = 0; i < cnt; i++)
 1934                 CSR_WRITE_2(sc, WI_DATA0, ptr[i]);
 1935         sc->sc_bap_off += cnt * 2;
 1936 
 1937         return 0;
 1938 }
 1939 
 1940 static int
 1941 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
 1942 {
 1943         int error, len;
 1944         struct mbuf *m;
 1945 
 1946         for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
 1947                 if (m->m_len == 0)
 1948                         continue;
 1949 
 1950                 len = min(m->m_len, totlen);
 1951 
 1952                 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
 1953                         m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
 1954                         return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
 1955                             totlen);
 1956                 }
 1957 
 1958                 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
 1959                         return error;
 1960 
 1961                 off += m->m_len;
 1962                 totlen -= len;
 1963         }
 1964         return 0;
 1965 }
 1966 
 1967 static int
 1968 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
 1969 {
 1970         int i;
 1971 
 1972         if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
 1973                 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n",
 1974                     __func__, len);
 1975                 return ENOMEM;
 1976         }
 1977 
 1978         for (i = 0; i < WI_TIMEOUT; i++) {
 1979                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
 1980                         break;
 1981                 DELAY(1);
 1982         }
 1983         if (i == WI_TIMEOUT) {
 1984                 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__);
 1985                 return ETIMEDOUT;
 1986         }
 1987         *idp = CSR_READ_2(sc, WI_ALLOC_FID);
 1988         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
 1989         return 0;
 1990 }
 1991 
 1992 static int
 1993 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
 1994 {
 1995         int error, len;
 1996         u_int16_t ltbuf[2];
 1997 
 1998         /* Tell the NIC to enter record read mode. */
 1999         error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
 2000         if (error)
 2001                 return error;
 2002 
 2003         error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
 2004         if (error)
 2005                 return error;
 2006 
 2007         if (le16toh(ltbuf[1]) != rid) {
 2008                 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n",
 2009                     rid, le16toh(ltbuf[1]));
 2010                 return EIO;
 2011         }
 2012         len = (le16toh(ltbuf[0]) - 1) * 2;       /* already got rid */
 2013         if (*buflenp < len) {
 2014                 device_printf(sc->sc_dev, "record buffer is too small, "
 2015                     "rid=%x, size=%d, len=%d\n",
 2016                     rid, *buflenp, len);
 2017                 return ENOSPC;
 2018         }
 2019         *buflenp = len;
 2020         return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
 2021 }
 2022 
 2023 static int
 2024 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen)
 2025 {
 2026         int error;
 2027         u_int16_t ltbuf[2];
 2028 
 2029         ltbuf[0] = htole16((buflen + 1) / 2 + 1);        /* includes rid */
 2030         ltbuf[1] = htole16(rid);
 2031 
 2032         error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
 2033         if (error) {
 2034                 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n",
 2035                     __func__, rid);
 2036                 return error;
 2037         }
 2038         error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
 2039         if (error) {
 2040                 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n",
 2041                     __func__, rid);
 2042                 return error;
 2043         }
 2044 
 2045         return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
 2046 }
 2047 
 2048 static int
 2049 wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie)
 2050 {
 2051         /* NB: 42 bytes is probably ok to have on the stack */
 2052         char buf[sizeof(uint16_t) + 40];
 2053 
 2054         if (ie->ie_len > 40)
 2055                 return EINVAL;
 2056         /* NB: firmware requires 16-bit ie length before ie data */
 2057         *(uint16_t *) buf = htole16(ie->ie_len);
 2058         memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len);
 2059         return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t));
 2060 }
 2061 
 2062 int
 2063 wi_alloc(device_t dev, int rid)
 2064 {
 2065         struct wi_softc *sc = device_get_softc(dev);
 2066 
 2067         if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
 2068                 sc->iobase_rid = rid;
 2069                 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
 2070                     &sc->iobase_rid, 0, ~0, (1 << 6),
 2071                     rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
 2072                 if (sc->iobase == NULL) {
 2073                         device_printf(dev, "No I/O space?!\n");
 2074                         return ENXIO;
 2075                 }
 2076 
 2077                 sc->wi_io_addr = rman_get_start(sc->iobase);
 2078                 sc->wi_btag = rman_get_bustag(sc->iobase);
 2079                 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
 2080         } else {
 2081                 sc->mem_rid = rid;
 2082                 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
 2083                     &sc->mem_rid, RF_ACTIVE);
 2084                 if (sc->mem == NULL) {
 2085                         device_printf(dev, "No Mem space on prism2.5?\n");
 2086                         return ENXIO;
 2087                 }
 2088 
 2089                 sc->wi_btag = rman_get_bustag(sc->mem);
 2090                 sc->wi_bhandle = rman_get_bushandle(sc->mem);
 2091         }
 2092 
 2093         sc->irq_rid = 0;
 2094         sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
 2095             RF_ACTIVE |
 2096             ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
 2097         if (sc->irq == NULL) {
 2098                 wi_free(dev);
 2099                 device_printf(dev, "No irq?!\n");
 2100                 return ENXIO;
 2101         }
 2102 
 2103         sc->sc_dev = dev;
 2104         sc->sc_unit = device_get_unit(dev);
 2105         return 0;
 2106 }
 2107 
 2108 void
 2109 wi_free(device_t dev)
 2110 {
 2111         struct wi_softc *sc = device_get_softc(dev);
 2112 
 2113         if (sc->iobase != NULL) {
 2114                 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
 2115                 sc->iobase = NULL;
 2116         }
 2117         if (sc->irq != NULL) {
 2118                 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
 2119                 sc->irq = NULL;
 2120         }
 2121         if (sc->mem != NULL) {
 2122                 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
 2123                 sc->mem = NULL;
 2124         }
 2125 }

Cache object: e210adb4bbb451bc679b82de147bd1e3


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