The Design and Implementation of the FreeBSD Operating System, Second Edition
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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 260444 2014-01-08 08:06:56Z kevlo $");
   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, int rssi, int nf);
  131 static int  wi_reset(struct wi_softc *);
  132 static void wi_watchdog(void *);
  133 static int  wi_ioctl(struct ifnet *, u_long, caddr_t);
  134 static void wi_media_status(struct ifnet *, struct ifmediareq *);
  135 
  136 static void wi_rx_intr(struct wi_softc *);
  137 static void wi_tx_intr(struct wi_softc *);
  138 static void wi_tx_ex_intr(struct wi_softc *);
  139 
  140 static void wi_info_intr(struct wi_softc *);
  141 
  142 static int  wi_write_txrate(struct wi_softc *, struct ieee80211vap *);
  143 static int  wi_write_wep(struct wi_softc *, struct ieee80211vap *);
  144 static int  wi_write_multi(struct wi_softc *);
  145 static void wi_update_mcast(struct ifnet *);
  146 static void wi_update_promisc(struct ifnet *);
  147 static int  wi_alloc_fid(struct wi_softc *, int, int *);
  148 static void wi_read_nicid(struct wi_softc *);
  149 static int  wi_write_ssid(struct wi_softc *, int, u_int8_t *, int);
  150 
  151 static int  wi_cmd(struct wi_softc *, int, int, int, int);
  152 static int  wi_seek_bap(struct wi_softc *, int, int);
  153 static int  wi_read_bap(struct wi_softc *, int, int, void *, int);
  154 static int  wi_write_bap(struct wi_softc *, int, int, void *, int);
  155 static int  wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int);
  156 static int  wi_read_rid(struct wi_softc *, int, void *, int *);
  157 static int  wi_write_rid(struct wi_softc *, int, void *, int);
  158 static int  wi_write_appie(struct wi_softc *, int, const struct ieee80211_appie *);
  159 
  160 static void wi_scan_start(struct ieee80211com *);
  161 static void wi_scan_end(struct ieee80211com *);
  162 static void wi_set_channel(struct ieee80211com *);
  163         
  164 static __inline int
  165 wi_write_val(struct wi_softc *sc, int rid, u_int16_t val)
  166 {
  167 
  168         val = htole16(val);
  169         return wi_write_rid(sc, rid, &val, sizeof(val));
  170 }
  171 
  172 static SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0,
  173             "Wireless driver parameters");
  174 
  175 static  struct timeval lasttxerror;     /* time of last tx error msg */
  176 static  int curtxeps;                   /* current tx error msgs/sec */
  177 static  int wi_txerate = 0;             /* tx error rate: max msgs/sec */
  178 SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate,
  179             0, "max tx error msgs/sec; 0 to disable msgs");
  180 
  181 #define WI_DEBUG
  182 #ifdef WI_DEBUG
  183 static  int wi_debug = 0;
  184 SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug,
  185             0, "control debugging printfs");
  186 #define DPRINTF(X)      if (wi_debug) printf X
  187 #else
  188 #define DPRINTF(X)
  189 #endif
  190 
  191 #define WI_INTRS        (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO)
  192 
  193 struct wi_card_ident wi_card_ident[] = {
  194         /* CARD_ID                      CARD_NAME               FIRM_TYPE */
  195         { WI_NIC_LUCENT_ID,             WI_NIC_LUCENT_STR,      WI_LUCENT },
  196         { WI_NIC_SONY_ID,               WI_NIC_SONY_STR,        WI_LUCENT },
  197         { WI_NIC_LUCENT_EMB_ID,         WI_NIC_LUCENT_EMB_STR,  WI_LUCENT },
  198         { WI_NIC_EVB2_ID,               WI_NIC_EVB2_STR,        WI_INTERSIL },
  199         { WI_NIC_HWB3763_ID,            WI_NIC_HWB3763_STR,     WI_INTERSIL },
  200         { WI_NIC_HWB3163_ID,            WI_NIC_HWB3163_STR,     WI_INTERSIL },
  201         { WI_NIC_HWB3163B_ID,           WI_NIC_HWB3163B_STR,    WI_INTERSIL },
  202         { WI_NIC_EVB3_ID,               WI_NIC_EVB3_STR,        WI_INTERSIL },
  203         { WI_NIC_HWB1153_ID,            WI_NIC_HWB1153_STR,     WI_INTERSIL },
  204         { WI_NIC_P2_SST_ID,             WI_NIC_P2_SST_STR,      WI_INTERSIL },
  205         { WI_NIC_EVB2_SST_ID,           WI_NIC_EVB2_SST_STR,    WI_INTERSIL },
  206         { WI_NIC_3842_EVA_ID,           WI_NIC_3842_EVA_STR,    WI_INTERSIL },
  207         { WI_NIC_3842_PCMCIA_AMD_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
  208         { WI_NIC_3842_PCMCIA_SST_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
  209         { WI_NIC_3842_PCMCIA_ATL_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
  210         { WI_NIC_3842_PCMCIA_ATS_ID,    WI_NIC_3842_PCMCIA_STR, WI_INTERSIL },
  211         { WI_NIC_3842_MINI_AMD_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
  212         { WI_NIC_3842_MINI_SST_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
  213         { WI_NIC_3842_MINI_ATL_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
  214         { WI_NIC_3842_MINI_ATS_ID,      WI_NIC_3842_MINI_STR,   WI_INTERSIL },
  215         { WI_NIC_3842_PCI_AMD_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
  216         { WI_NIC_3842_PCI_SST_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
  217         { WI_NIC_3842_PCI_ATS_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
  218         { WI_NIC_3842_PCI_ATL_ID,       WI_NIC_3842_PCI_STR,    WI_INTERSIL },
  219         { WI_NIC_P3_PCMCIA_AMD_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
  220         { WI_NIC_P3_PCMCIA_SST_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
  221         { WI_NIC_P3_PCMCIA_ATL_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
  222         { WI_NIC_P3_PCMCIA_ATS_ID,      WI_NIC_P3_PCMCIA_STR,   WI_INTERSIL },
  223         { WI_NIC_P3_MINI_AMD_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
  224         { WI_NIC_P3_MINI_SST_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
  225         { WI_NIC_P3_MINI_ATL_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
  226         { WI_NIC_P3_MINI_ATS_ID,        WI_NIC_P3_MINI_STR,     WI_INTERSIL },
  227         { 0,    NULL,   0 },
  228 };
  229 
  230 static char *wi_firmware_names[] = { "none", "Hermes", "Intersil", "Symbol" };
  231 
  232 devclass_t wi_devclass;
  233 
  234 int
  235 wi_attach(device_t dev)
  236 {
  237         struct wi_softc *sc = device_get_softc(dev);
  238         struct ieee80211com *ic;
  239         struct ifnet *ifp;
  240         int i, nrates, buflen;
  241         u_int16_t val;
  242         u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE];
  243         struct ieee80211_rateset *rs;
  244         struct sysctl_ctx_list *sctx;
  245         struct sysctl_oid *soid;
  246         static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = {
  247                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
  248         };
  249         int error;
  250         uint8_t macaddr[IEEE80211_ADDR_LEN];
  251 
  252         ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211);
  253         if (ifp == NULL) {
  254                 device_printf(dev, "can not if_alloc\n");
  255                 wi_free(dev);
  256                 return ENOSPC;
  257         }
  258         ic = ifp->if_l2com;
  259 
  260         sc->sc_firmware_type = WI_NOTYPE;
  261         sc->wi_cmd_count = 500;
  262         /* Reset the NIC. */
  263         if (wi_reset(sc) != 0) {
  264                 wi_free(dev);
  265                 return ENXIO;           /* XXX */
  266         }
  267 
  268         /* Read NIC identification */
  269         wi_read_nicid(sc);
  270         switch (sc->sc_firmware_type) {
  271         case WI_LUCENT:
  272                 if (sc->sc_sta_firmware_ver < 60006)
  273                         goto reject;
  274                 break;
  275         case WI_INTERSIL:
  276                 if (sc->sc_sta_firmware_ver < 800)
  277                         goto reject;
  278                 break;
  279         default:
  280         reject:
  281                 device_printf(dev, "Sorry, this card is not supported "
  282                     "(type %d, firmware ver %d)\n",
  283                     sc->sc_firmware_type, sc->sc_sta_firmware_ver);
  284                 wi_free(dev);
  285                 return EOPNOTSUPP; 
  286         }
  287 
  288         /* Export info about the device via sysctl */
  289         sctx = device_get_sysctl_ctx(dev);
  290         soid = device_get_sysctl_tree(dev);
  291         SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
  292             "firmware_type", CTLFLAG_RD,
  293             wi_firmware_names[sc->sc_firmware_type], 0,
  294             "Firmware type string");
  295         SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version",
  296             CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0,
  297             "Station Firmware version");
  298         if (sc->sc_firmware_type == WI_INTERSIL)
  299                 SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
  300                     "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0,
  301                     "Primary Firmware version");
  302         SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id",
  303             CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id");
  304         SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name",
  305             CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name");
  306 
  307         mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
  308             MTX_DEF | MTX_RECURSE);
  309         callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0);
  310 
  311         /*
  312          * Read the station address.
  313          * And do it twice. I've seen PRISM-based cards that return
  314          * an error when trying to read it the first time, which causes
  315          * the probe to fail.
  316          */
  317         buflen = IEEE80211_ADDR_LEN;
  318         error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen);
  319         if (error != 0) {
  320                 buflen = IEEE80211_ADDR_LEN;
  321                 error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen);
  322         }
  323         if (error || IEEE80211_ADDR_EQ(macaddr, empty_macaddr)) {
  324                 if (error != 0)
  325                         device_printf(dev, "mac read failed %d\n", error);
  326                 else {
  327                         device_printf(dev, "mac read failed (all zeros)\n");
  328                         error = ENXIO;
  329                 }
  330                 wi_free(dev);
  331                 return (error);
  332         }
  333 
  334         ifp->if_softc = sc;
  335         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
  336         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
  337         ifp->if_ioctl = wi_ioctl;
  338         ifp->if_start = wi_start;
  339         ifp->if_init = wi_init;
  340         IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
  341         ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
  342         IFQ_SET_READY(&ifp->if_snd);
  343 
  344         ic->ic_ifp = ifp;
  345         ic->ic_phytype = IEEE80211_T_DS;
  346         ic->ic_opmode = IEEE80211_M_STA;
  347         ic->ic_caps = IEEE80211_C_STA
  348                     | IEEE80211_C_PMGT
  349                     | IEEE80211_C_MONITOR
  350                     ;
  351 
  352         /*
  353          * Query the card for available channels and setup the
  354          * channel table.  We assume these are all 11b channels.
  355          */
  356         buflen = sizeof(val);
  357         if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0)
  358                 val = htole16(0x1fff);  /* assume 1-11 */
  359         KASSERT(val != 0, ("wi_attach: no available channels listed!"));
  360 
  361         val <<= 1;                      /* shift for base 1 indices */
  362         for (i = 1; i < 16; i++) {
  363                 struct ieee80211_channel *c;
  364 
  365                 if (!isset((u_int8_t*)&val, i))
  366                         continue;
  367                 c = &ic->ic_channels[ic->ic_nchans++];
  368                 c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B);
  369                 c->ic_flags = IEEE80211_CHAN_B;
  370                 c->ic_ieee = i;
  371                 /* XXX txpowers? */
  372         }
  373 
  374         /*
  375          * Set flags based on firmware version.
  376          */
  377         switch (sc->sc_firmware_type) {
  378         case WI_LUCENT:
  379                 sc->sc_ntxbuf = 1;
  380                 ic->ic_caps |= IEEE80211_C_IBSS;
  381 
  382                 sc->sc_ibss_port = WI_PORTTYPE_BSS;
  383                 sc->sc_monitor_port = WI_PORTTYPE_ADHOC;
  384                 sc->sc_min_rssi = WI_LUCENT_MIN_RSSI;
  385                 sc->sc_max_rssi = WI_LUCENT_MAX_RSSI;
  386                 sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET;
  387                 break;
  388         case WI_INTERSIL:
  389                 sc->sc_ntxbuf = WI_NTXBUF;
  390                 sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR
  391                              |  WI_FLAGS_HAS_ROAMING;
  392                 /*
  393                  * Old firmware are slow, so give peace a chance.
  394                  */
  395                 if (sc->sc_sta_firmware_ver < 10000)
  396                         sc->wi_cmd_count = 5000;
  397                 if (sc->sc_sta_firmware_ver > 10101)
  398                         sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST;
  399                 ic->ic_caps |= IEEE80211_C_IBSS;
  400                 /*
  401                  * version 0.8.3 and newer are the only ones that are known
  402                  * to currently work.  Earlier versions can be made to work,
  403                  * at least according to the Linux driver but we require
  404                  * monitor mode so this is irrelevant.
  405                  */
  406                 ic->ic_caps |= IEEE80211_C_HOSTAP;
  407                 if (sc->sc_sta_firmware_ver >= 10603)
  408                         sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY;
  409                 if (sc->sc_sta_firmware_ver >= 10700) {
  410                         /*
  411                          * 1.7.0+ have the necessary support for sta mode WPA.
  412                          */
  413                         sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT;
  414                         ic->ic_caps |= IEEE80211_C_WPA;
  415                 }
  416 
  417                 sc->sc_ibss_port = WI_PORTTYPE_IBSS;
  418                 sc->sc_monitor_port = WI_PORTTYPE_APSILENT;
  419                 sc->sc_min_rssi = WI_PRISM_MIN_RSSI;
  420                 sc->sc_max_rssi = WI_PRISM_MAX_RSSI;
  421                 sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET;
  422                 break;
  423         }
  424 
  425         /*
  426          * Find out if we support WEP on this card.
  427          */
  428         buflen = sizeof(val);
  429         if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 &&
  430             val != htole16(0))
  431                 ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP;
  432 
  433         /* Find supported rates. */
  434         buflen = sizeof(ratebuf);
  435         rs = &ic->ic_sup_rates[IEEE80211_MODE_11B];
  436         if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) {
  437                 nrates = le16toh(*(u_int16_t *)ratebuf);
  438                 if (nrates > IEEE80211_RATE_MAXSIZE)
  439                         nrates = IEEE80211_RATE_MAXSIZE;
  440                 rs->rs_nrates = 0;
  441                 for (i = 0; i < nrates; i++)
  442                         if (ratebuf[2+i])
  443                                 rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i];
  444         } else {
  445                 /* XXX fallback on error? */
  446         }
  447 
  448         buflen = sizeof(val);
  449         if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) &&
  450             wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) {
  451                 sc->sc_dbm_offset = le16toh(val);
  452         }
  453 
  454         sc->sc_portnum = WI_DEFAULT_PORT;
  455 
  456         ieee80211_ifattach(ic, macaddr);
  457         ic->ic_raw_xmit = wi_raw_xmit;
  458         ic->ic_scan_start = wi_scan_start;
  459         ic->ic_scan_end = wi_scan_end;
  460         ic->ic_set_channel = wi_set_channel;
  461 
  462         ic->ic_vap_create = wi_vap_create;
  463         ic->ic_vap_delete = wi_vap_delete;
  464         ic->ic_update_mcast = wi_update_mcast;
  465         ic->ic_update_promisc = wi_update_promisc;
  466 
  467         ieee80211_radiotap_attach(ic,
  468             &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th),
  469                 WI_TX_RADIOTAP_PRESENT,
  470             &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th),
  471                 WI_RX_RADIOTAP_PRESENT);
  472 
  473         if (bootverbose)
  474                 ieee80211_announce(ic);
  475 
  476         error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
  477             NULL, wi_intr, sc, &sc->wi_intrhand);
  478         if (error) {
  479                 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
  480                 ieee80211_ifdetach(ic);
  481                 if_free(sc->sc_ifp);
  482                 wi_free(dev);
  483                 return error;
  484         }
  485 
  486         return (0);
  487 }
  488 
  489 int
  490 wi_detach(device_t dev)
  491 {
  492         struct wi_softc *sc = device_get_softc(dev);
  493         struct ifnet *ifp = sc->sc_ifp;
  494         struct ieee80211com *ic = ifp->if_l2com;
  495 
  496         WI_LOCK(sc);
  497 
  498         /* check if device was removed */
  499         sc->wi_gone |= !bus_child_present(dev);
  500 
  501         wi_stop_locked(sc, 0);
  502         WI_UNLOCK(sc);
  503         ieee80211_ifdetach(ic);
  504 
  505         bus_teardown_intr(dev, sc->irq, sc->wi_intrhand);
  506         if_free(sc->sc_ifp);
  507         wi_free(dev);
  508         mtx_destroy(&sc->sc_mtx);
  509         return (0);
  510 }
  511 
  512 static struct ieee80211vap *
  513 wi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
  514     enum ieee80211_opmode opmode, int flags,
  515     const uint8_t bssid[IEEE80211_ADDR_LEN],
  516     const uint8_t mac[IEEE80211_ADDR_LEN])
  517 {
  518         struct wi_softc *sc = ic->ic_ifp->if_softc;
  519         struct wi_vap *wvp;
  520         struct ieee80211vap *vap;
  521 
  522         if (!TAILQ_EMPTY(&ic->ic_vaps))         /* only one at a time */
  523                 return NULL;
  524         wvp = (struct wi_vap *) malloc(sizeof(struct wi_vap),
  525             M_80211_VAP, M_NOWAIT | M_ZERO);
  526         if (wvp == NULL)
  527                 return NULL;
  528 
  529         vap = &wvp->wv_vap;
  530         ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
  531 
  532         vap->iv_max_aid = WI_MAX_AID;
  533 
  534         switch (opmode) {
  535         case IEEE80211_M_STA:
  536                 sc->sc_porttype = WI_PORTTYPE_BSS;
  537                 wvp->wv_newstate = vap->iv_newstate;
  538                 vap->iv_newstate = wi_newstate_sta;
  539                 /* need to filter mgt frames to avoid confusing state machine */
  540                 wvp->wv_recv_mgmt = vap->iv_recv_mgmt;
  541                 vap->iv_recv_mgmt = wi_recv_mgmt;
  542                 break;
  543         case IEEE80211_M_IBSS:
  544                 sc->sc_porttype = sc->sc_ibss_port;
  545                 wvp->wv_newstate = vap->iv_newstate;
  546                 vap->iv_newstate = wi_newstate_sta;
  547                 break;
  548         case IEEE80211_M_AHDEMO:
  549                 sc->sc_porttype = WI_PORTTYPE_ADHOC;
  550                 break;
  551         case IEEE80211_M_HOSTAP:
  552                 sc->sc_porttype = WI_PORTTYPE_HOSTAP;
  553                 wvp->wv_newstate = vap->iv_newstate;
  554                 vap->iv_newstate = wi_newstate_hostap;
  555                 break;
  556         case IEEE80211_M_MONITOR:
  557                 sc->sc_porttype = sc->sc_monitor_port;
  558                 break;
  559         default:
  560                 break;
  561         }
  562 
  563         /* complete setup */
  564         ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status);
  565         ic->ic_opmode = opmode;
  566         return vap;
  567 }
  568 
  569 static void
  570 wi_vap_delete(struct ieee80211vap *vap)
  571 {
  572         struct wi_vap *wvp = WI_VAP(vap);
  573 
  574         ieee80211_vap_detach(vap);
  575         free(wvp, M_80211_VAP);
  576 }
  577 
  578 int
  579 wi_shutdown(device_t dev)
  580 {
  581         struct wi_softc *sc = device_get_softc(dev);
  582 
  583         wi_stop(sc, 1);
  584         return (0);
  585 }
  586 
  587 void
  588 wi_intr(void *arg)
  589 {
  590         struct wi_softc *sc = arg;
  591         struct ifnet *ifp = sc->sc_ifp;
  592         u_int16_t status;
  593 
  594         WI_LOCK(sc);
  595 
  596         if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) {
  597                 CSR_WRITE_2(sc, WI_INT_EN, 0);
  598                 CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
  599                 WI_UNLOCK(sc);
  600                 return;
  601         }
  602 
  603         /* Disable interrupts. */
  604         CSR_WRITE_2(sc, WI_INT_EN, 0);
  605 
  606         status = CSR_READ_2(sc, WI_EVENT_STAT);
  607         if (status & WI_EV_RX)
  608                 wi_rx_intr(sc);
  609         if (status & WI_EV_ALLOC)
  610                 wi_tx_intr(sc);
  611         if (status & WI_EV_TX_EXC)
  612                 wi_tx_ex_intr(sc);
  613         if (status & WI_EV_INFO)
  614                 wi_info_intr(sc);
  615         if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 &&
  616             !IFQ_DRV_IS_EMPTY(&ifp->if_snd))
  617                 wi_start_locked(ifp);
  618 
  619         /* Re-enable interrupts. */
  620         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
  621 
  622         WI_UNLOCK(sc);
  623 
  624         return;
  625 }
  626 
  627 static void
  628 wi_enable(struct wi_softc *sc)
  629 {
  630         /* Enable interrupts */
  631         CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS);
  632 
  633         /* enable port */
  634         wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0);
  635         sc->sc_enabled = 1;
  636 }
  637 
  638 static int
  639 wi_setup_locked(struct wi_softc *sc, int porttype, int mode,
  640         uint8_t mac[IEEE80211_ADDR_LEN])
  641 {
  642         int i;
  643 
  644         wi_reset(sc);
  645 
  646         wi_write_val(sc, WI_RID_PORTTYPE, porttype);
  647         wi_write_val(sc, WI_RID_CREATE_IBSS, mode);
  648         wi_write_val(sc, WI_RID_MAX_DATALEN, 2304);
  649         /* XXX IEEE80211_BPF_NOACK wants 0 */
  650         wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2);
  651         if (sc->sc_flags & WI_FLAGS_HAS_ROAMING)
  652                 wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */
  653 
  654         wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN);
  655 
  656         /* Allocate fids for the card */
  657         sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame);
  658         for (i = 0; i < sc->sc_ntxbuf; i++) {
  659                 int error = wi_alloc_fid(sc, sc->sc_buflen,
  660                     &sc->sc_txd[i].d_fid);
  661                 if (error) {
  662                         device_printf(sc->sc_dev,
  663                             "tx buffer allocation failed (error %u)\n",
  664                             error);
  665                         return error;
  666                 }
  667                 sc->sc_txd[i].d_len = 0;
  668         }
  669         sc->sc_txcur = sc->sc_txnext = 0;
  670 
  671         return 0;
  672 }
  673 
  674 static void
  675 wi_init_locked(struct wi_softc *sc)
  676 {
  677         struct ifnet *ifp = sc->sc_ifp;
  678         int wasenabled;
  679 
  680         WI_LOCK_ASSERT(sc);
  681 
  682         wasenabled = sc->sc_enabled;
  683         if (wasenabled)
  684                 wi_stop_locked(sc, 1);
  685 
  686         if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) {
  687                 if_printf(ifp, "interface not running\n");
  688                 wi_stop_locked(sc, 1);
  689                 return;
  690         }
  691 
  692         ifp->if_drv_flags |= IFF_DRV_RUNNING;
  693         ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
  694 
  695         callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc);
  696 
  697         wi_enable(sc);                  /* Enable desired port */
  698 }
  699 
  700 void
  701 wi_init(void *arg)
  702 {
  703         struct wi_softc *sc = arg;
  704         struct ifnet *ifp = sc->sc_ifp;
  705         struct ieee80211com *ic = ifp->if_l2com;
  706 
  707         WI_LOCK(sc);
  708         wi_init_locked(sc);
  709         WI_UNLOCK(sc);
  710 
  711         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
  712                 ieee80211_start_all(ic);                /* start all vap's */
  713 }
  714 
  715 static void
  716 wi_stop_locked(struct wi_softc *sc, int disable)
  717 {
  718         struct ifnet *ifp = sc->sc_ifp;
  719 
  720         WI_LOCK_ASSERT(sc);
  721 
  722         if (sc->sc_enabled && !sc->wi_gone) {
  723                 CSR_WRITE_2(sc, WI_INT_EN, 0);
  724                 wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0);
  725                 if (disable)
  726                         sc->sc_enabled = 0;
  727         } else if (sc->wi_gone && disable)      /* gone --> not enabled */
  728                 sc->sc_enabled = 0;
  729 
  730         callout_stop(&sc->sc_watchdog);
  731         sc->sc_tx_timer = 0;
  732         sc->sc_false_syns = 0;
  733 
  734         ifp->if_drv_flags &= ~(IFF_DRV_OACTIVE | IFF_DRV_RUNNING);
  735 }
  736 
  737 void
  738 wi_stop(struct wi_softc *sc, int disable)
  739 {
  740         WI_LOCK(sc);
  741         wi_stop_locked(sc, disable);
  742         WI_UNLOCK(sc);
  743 }
  744 
  745 static void
  746 wi_set_channel(struct ieee80211com *ic)
  747 {
  748         struct ifnet *ifp = ic->ic_ifp;
  749         struct wi_softc *sc = ifp->if_softc;
  750 
  751         DPRINTF(("%s: channel %d, %sscanning\n", __func__,
  752             ieee80211_chan2ieee(ic, ic->ic_curchan),
  753             ic->ic_flags & IEEE80211_F_SCAN ? "" : "!"));
  754 
  755         WI_LOCK(sc);
  756         wi_write_val(sc, WI_RID_OWN_CHNL,
  757             ieee80211_chan2ieee(ic, ic->ic_curchan));
  758         WI_UNLOCK(sc);
  759 }
  760 
  761 static void
  762 wi_scan_start(struct ieee80211com *ic)
  763 {
  764         struct ifnet *ifp = ic->ic_ifp;
  765         struct wi_softc *sc = ifp->if_softc;
  766         struct ieee80211_scan_state *ss = ic->ic_scan;
  767 
  768         DPRINTF(("%s\n", __func__));
  769 
  770         WI_LOCK(sc);
  771         /*
  772          * Switch device to monitor mode.
  773          */
  774         wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port);
  775         if (sc->sc_firmware_type == WI_INTERSIL) {
  776                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
  777                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
  778         }
  779         /* force full dwell time to compensate for firmware overhead */
  780         ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400);
  781         WI_UNLOCK(sc);
  782 
  783 }
  784 
  785 static void
  786 wi_scan_end(struct ieee80211com *ic)
  787 {
  788         struct ifnet *ifp = ic->ic_ifp;
  789         struct wi_softc *sc = ifp->if_softc;
  790 
  791         DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype));
  792 
  793         WI_LOCK(sc);
  794         wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype);
  795         if (sc->sc_firmware_type == WI_INTERSIL) {
  796                 wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0);
  797                 wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0);
  798         }
  799         WI_UNLOCK(sc);
  800 }
  801 
  802 static void
  803 wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
  804         int subtype, int rssi, int nf)
  805 {
  806         struct ieee80211vap *vap = ni->ni_vap;
  807 
  808         switch (subtype) {
  809         case IEEE80211_FC0_SUBTYPE_AUTH:
  810         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
  811         case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
  812                 /* NB: filter frames that trigger state changes */
  813                 return;
  814         }
  815         WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rssi, nf);
  816 }
  817 
  818 static int
  819 wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
  820 {
  821         struct ieee80211com *ic = vap->iv_ic;
  822         struct ifnet *ifp = ic->ic_ifp;
  823         struct ieee80211_node *bss;
  824         struct wi_softc *sc = ifp->if_softc;
  825 
  826         DPRINTF(("%s: %s -> %s\n", __func__,
  827                 ieee80211_state_name[vap->iv_state],
  828                 ieee80211_state_name[nstate]));
  829 
  830         if (nstate == IEEE80211_S_AUTH) {
  831                 WI_LOCK(sc);
  832                 wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr);
  833 
  834                 if (vap->iv_flags & IEEE80211_F_PMGTON) {
  835                         wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval);
  836                         wi_write_val(sc, WI_RID_PM_ENABLED, 1);
  837                 }
  838                 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold);
  839                 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
  840                         wi_write_val(sc, WI_RID_FRAG_THRESH,
  841                             vap->iv_fragthreshold);
  842                 wi_write_txrate(sc, vap);
  843 
  844                 bss = vap->iv_bss;
  845                 wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen);
  846                 wi_write_val(sc, WI_RID_OWN_CHNL,
  847                     ieee80211_chan2ieee(ic, bss->ni_chan));
  848 
  849                 /* Configure WEP. */
  850                 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP)
  851                         wi_write_wep(sc, vap);
  852                 else
  853                         sc->sc_encryption = 0;
  854 
  855                 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) &&
  856                     (vap->iv_flags & IEEE80211_F_WPA)) {
  857                         wi_write_val(sc, WI_RID_WPA_HANDLING, 1);
  858                         if (vap->iv_appie_wpa != NULL)
  859                                 wi_write_appie(sc, WI_RID_WPA_DATA,
  860                                     vap->iv_appie_wpa);
  861                 }
  862 
  863                 wi_enable(sc);          /* enable port */
  864 
  865                 /* Lucent firmware does not support the JOIN RID. */
  866                 if (sc->sc_firmware_type == WI_INTERSIL) {
  867                         struct wi_joinreq join;
  868 
  869                         memset(&join, 0, sizeof(join));
  870                         IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid);
  871                         join.wi_chan = htole16(
  872                             ieee80211_chan2ieee(ic, bss->ni_chan));
  873                         wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join));
  874                 }
  875                 WI_UNLOCK(sc);
  876 
  877                 /*
  878                  * NB: don't go through 802.11 layer, it'll send auth frame;
  879                  * instead we drive the state machine from the link status
  880                  * notification we get on association.
  881                  */
  882                 vap->iv_state = nstate;
  883                 return (0);
  884         }
  885         return WI_VAP(vap)->wv_newstate(vap, nstate, arg);
  886 }
  887 
  888 static int
  889 wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
  890 {
  891         struct ieee80211com *ic = vap->iv_ic;
  892         struct ifnet *ifp = ic->ic_ifp;
  893         struct ieee80211_node *bss;
  894         struct wi_softc *sc = ifp->if_softc;
  895         int error;
  896 
  897         DPRINTF(("%s: %s -> %s\n", __func__,
  898                 ieee80211_state_name[vap->iv_state],
  899                 ieee80211_state_name[nstate]));
  900 
  901         error = WI_VAP(vap)->wv_newstate(vap, nstate, arg);
  902         if (error == 0 && nstate == IEEE80211_S_RUN) {
  903                 WI_LOCK(sc);
  904                 wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr);
  905 
  906                 bss = vap->iv_bss;
  907                 wi_write_ssid(sc, WI_RID_OWN_SSID,
  908                     bss->ni_essid, bss->ni_esslen);
  909                 wi_write_val(sc, WI_RID_OWN_CHNL,
  910                     ieee80211_chan2ieee(ic, bss->ni_chan));
  911                 wi_write_val(sc, WI_RID_BASIC_RATE, 0x3);
  912                 wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf);
  913                 wi_write_txrate(sc, vap);
  914 
  915                 wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval);
  916                 wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period);
  917 
  918                 wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold);
  919                 if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR)
  920                         wi_write_val(sc, WI_RID_FRAG_THRESH,
  921                             vap->iv_fragthreshold);
  922 
  923                 if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) &&
  924                     (vap->iv_flags & IEEE80211_F_HIDESSID)) {
  925                         /*
  926                          * bit 0 means hide SSID in beacons,
  927                          * bit 1 means don't respond to bcast probe req
  928                          */
  929                         wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3);
  930                 }
  931 
  932                 if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) &&
  933                     (vap->iv_flags & IEEE80211_F_WPA) && 
  934                     vap->iv_appie_wpa != NULL)
  935                         wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa);
  936 
  937                 wi_write_val(sc, WI_RID_PROMISC, 0);
  938 
  939                 /* Configure WEP. */
  940                 if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP)
  941                         wi_write_wep(sc, vap);
  942                 else
  943                         sc->sc_encryption = 0;
  944 
  945                 wi_enable(sc);          /* enable port */
  946                 WI_UNLOCK(sc);
  947         }
  948         return error;
  949 }
  950 
  951 static void
  952 wi_start_locked(struct ifnet *ifp)
  953 {
  954         struct wi_softc *sc = ifp->if_softc;
  955         struct ieee80211_node *ni;
  956         struct ieee80211_frame *wh;
  957         struct mbuf *m0;
  958         struct ieee80211_key *k;
  959         struct wi_frame frmhdr;
  960         const struct llc *llc;
  961         int cur;
  962 
  963         WI_LOCK_ASSERT(sc);
  964 
  965         if (sc->wi_gone)
  966                 return;
  967 
  968         memset(&frmhdr, 0, sizeof(frmhdr));
  969         cur = sc->sc_txnext;
  970         for (;;) {
  971                 IFQ_DRV_DEQUEUE(&ifp->if_snd, m0);
  972                 if (m0 == NULL)
  973                         break;
  974                 if (sc->sc_txd[cur].d_len != 0) {
  975                         IFQ_DRV_PREPEND(&ifp->if_snd, m0);
  976                         ifp->if_drv_flags |= IFF_DRV_OACTIVE;
  977                         break;
  978                 }
  979                 ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif;
  980 
  981                 /* reconstruct 802.3 header */
  982                 wh = mtod(m0, struct ieee80211_frame *);
  983                 switch (wh->i_fc[1]) {
  984                 case IEEE80211_FC1_DIR_TODS:
  985                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
  986                             wh->i_addr2);
  987                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
  988                             wh->i_addr3);
  989                         break;
  990                 case IEEE80211_FC1_DIR_NODS:
  991                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
  992                             wh->i_addr2);
  993                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
  994                             wh->i_addr1);
  995                         break;
  996                 case IEEE80211_FC1_DIR_FROMDS:
  997                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost,
  998                             wh->i_addr3);
  999                         IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost,
 1000                             wh->i_addr1);
 1001                         break;
 1002                 }
 1003                 llc = (const struct llc *)(
 1004                     mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh));
 1005                 frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type;
 1006                 frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 1007                 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
 1008                         k = ieee80211_crypto_encap(ni, m0);
 1009                         if (k == NULL) {
 1010                                 ieee80211_free_node(ni);
 1011                                 m_freem(m0);
 1012                                 continue;
 1013                         }
 1014                         frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 1015                 }
 1016 
 1017                 if (ieee80211_radiotap_active_vap(ni->ni_vap)) {
 1018                         sc->sc_tx_th.wt_rate = ni->ni_txrate;
 1019                         ieee80211_radiotap_tx(ni->ni_vap, m0);
 1020                 }
 1021 
 1022                 m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 1023                     (caddr_t)&frmhdr.wi_whdr);
 1024                 m_adj(m0, sizeof(struct ieee80211_frame));
 1025                 frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 1026                 ieee80211_free_node(ni);
 1027                 if (wi_start_tx(ifp, &frmhdr, m0))
 1028                         continue;
 1029 
 1030                 sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 1031                 ifp->if_opackets++;
 1032         }
 1033 }
 1034 
 1035 static void
 1036 wi_start(struct ifnet *ifp)
 1037 {
 1038         struct wi_softc *sc = ifp->if_softc;
 1039 
 1040         WI_LOCK(sc);
 1041         wi_start_locked(ifp);
 1042         WI_UNLOCK(sc);
 1043 }
 1044 
 1045 static int
 1046 wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0)
 1047 {
 1048         struct wi_softc *sc = ifp->if_softc;
 1049         int cur = sc->sc_txnext;
 1050         int fid, off, error;
 1051 
 1052         fid = sc->sc_txd[cur].d_fid;
 1053         off = sizeof(*frmhdr);
 1054         error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0
 1055              || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0;
 1056         m_freem(m0);
 1057         if (error) {
 1058                 ifp->if_oerrors++;
 1059                 return -1;
 1060         }
 1061         sc->sc_txd[cur].d_len = off;
 1062         if (sc->sc_txcur == cur) {
 1063                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) {
 1064                         if_printf(ifp, "xmit failed\n");
 1065                         sc->sc_txd[cur].d_len = 0;
 1066                         return -1;
 1067                 }
 1068                 sc->sc_tx_timer = 5;
 1069         }
 1070         return 0;
 1071 }
 1072 
 1073 static int
 1074 wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0,
 1075             const struct ieee80211_bpf_params *params)
 1076 {
 1077         struct ieee80211com *ic = ni->ni_ic;
 1078         struct ifnet *ifp = ic->ic_ifp;
 1079         struct ieee80211vap *vap = ni->ni_vap;
 1080         struct wi_softc *sc = ifp->if_softc;
 1081         struct ieee80211_key *k;
 1082         struct ieee80211_frame *wh;
 1083         struct wi_frame frmhdr;
 1084         int cur;
 1085         int rc = 0;
 1086 
 1087         WI_LOCK(sc);
 1088 
 1089         if (sc->wi_gone) {
 1090                 rc = ENETDOWN;
 1091                 goto out;
 1092         }
 1093         memset(&frmhdr, 0, sizeof(frmhdr));
 1094         cur = sc->sc_txnext;
 1095         if (sc->sc_txd[cur].d_len != 0) {
 1096                 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
 1097                 rc = ENOBUFS;
 1098                 goto out;
 1099         }
 1100         m0->m_pkthdr.rcvif = NULL;
 1101 
 1102         m_copydata(m0, 4, ETHER_ADDR_LEN * 2,
 1103             (caddr_t)&frmhdr.wi_ehdr);
 1104         frmhdr.wi_ehdr.ether_type = 0;
 1105         wh = mtod(m0, struct ieee80211_frame *);
 1106                         
 1107         frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX);
 1108         if (params && (params->ibp_flags & IEEE80211_BPF_NOACK))
 1109                 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY);
 1110         if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
 1111             (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) {
 1112                 k = ieee80211_crypto_encap(ni, m0);
 1113                 if (k == NULL) {
 1114                         rc = ENOMEM;
 1115                         goto out;
 1116                 }
 1117                 frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT);
 1118         }
 1119         if (ieee80211_radiotap_active_vap(vap)) {
 1120                 sc->sc_tx_th.wt_rate = ni->ni_txrate;
 1121                 ieee80211_radiotap_tx(vap, m0);
 1122         }
 1123         m_copydata(m0, 0, sizeof(struct ieee80211_frame),
 1124             (caddr_t)&frmhdr.wi_whdr);
 1125         m_adj(m0, sizeof(struct ieee80211_frame));
 1126         frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len);
 1127         if (wi_start_tx(ifp, &frmhdr, m0) < 0) {
 1128                 m0 = NULL;
 1129                 rc = EIO;
 1130                 goto out;
 1131         }
 1132         m0 = NULL;
 1133 
 1134         sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf;
 1135 out:
 1136         WI_UNLOCK(sc);
 1137 
 1138         if (m0 != NULL)
 1139                 m_freem(m0);
 1140         ieee80211_free_node(ni);
 1141         return rc;
 1142 }
 1143 
 1144 static int
 1145 wi_reset(struct wi_softc *sc)
 1146 {
 1147 #define WI_INIT_TRIES 3
 1148         int i, error = 0;
 1149 
 1150         for (i = 0; i < WI_INIT_TRIES; i++) {
 1151                 error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0);
 1152                 if (error == 0)
 1153                         break;
 1154                 DELAY(WI_DELAY * 1000);
 1155         }
 1156         sc->sc_reset = 1;
 1157         if (i == WI_INIT_TRIES) {
 1158                 if_printf(sc->sc_ifp, "reset failed\n");
 1159                 return error;
 1160         }
 1161 
 1162         CSR_WRITE_2(sc, WI_INT_EN, 0);
 1163         CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
 1164 
 1165         /* Calibrate timer. */
 1166         wi_write_val(sc, WI_RID_TICK_TIME, 8);
 1167 
 1168         return 0;
 1169 #undef WI_INIT_TRIES
 1170 }
 1171 
 1172 static void
 1173 wi_watchdog(void *arg)
 1174 {
 1175         struct wi_softc *sc = arg;
 1176         struct ifnet *ifp = sc->sc_ifp;
 1177 
 1178         WI_LOCK_ASSERT(sc);
 1179 
 1180         if (!sc->sc_enabled)
 1181                 return;
 1182 
 1183         if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) {
 1184                 if_printf(ifp, "device timeout\n");
 1185                 ifp->if_oerrors++;
 1186                 wi_init_locked(ifp->if_softc);
 1187                 return;
 1188         }
 1189         callout_reset(&sc->sc_watchdog, hz, wi_watchdog, sc);
 1190 }
 1191 
 1192 static int
 1193 wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 1194 {
 1195         struct wi_softc *sc = ifp->if_softc;
 1196         struct ieee80211com *ic = ifp->if_l2com;
 1197         struct ifreq *ifr = (struct ifreq *) data;
 1198         int error = 0, startall = 0;
 1199 
 1200         switch (cmd) {
 1201         case SIOCSIFFLAGS:
 1202                 WI_LOCK(sc);
 1203                 /*
 1204                  * Can't do promisc and hostap at the same time.  If all that's
 1205                  * changing is the promisc flag, try to short-circuit a call to
 1206                  * wi_init() by just setting PROMISC in the hardware.
 1207                  */
 1208                 if (ifp->if_flags & IFF_UP) {
 1209                         if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
 1210                             ifp->if_drv_flags & IFF_DRV_RUNNING) {
 1211                                 if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) {
 1212                                         wi_write_val(sc, WI_RID_PROMISC,
 1213                                             (ifp->if_flags & IFF_PROMISC) != 0);
 1214                                 } else {
 1215                                         wi_init_locked(sc);
 1216                                         startall = 1;
 1217                                 }
 1218                         } else {
 1219                                 wi_init_locked(sc);
 1220                                 startall = 1;
 1221                         }
 1222                 } else {
 1223                         if (ifp->if_drv_flags & IFF_DRV_RUNNING)
 1224                                 wi_stop_locked(sc, 1);
 1225                         sc->wi_gone = 0;
 1226                 }
 1227                 sc->sc_if_flags = ifp->if_flags;
 1228                 WI_UNLOCK(sc);
 1229                 if (startall)
 1230                         ieee80211_start_all(ic);
 1231                 break;
 1232         case SIOCGIFMEDIA:
 1233                 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd);
 1234                 break;
 1235         case SIOCGIFADDR:
 1236                 error = ether_ioctl(ifp, cmd, data);
 1237                 break;
 1238         default:
 1239                 error = EINVAL;
 1240                 break;
 1241         }
 1242         return error;
 1243 }
 1244 
 1245 static void
 1246 wi_media_status(struct ifnet *ifp, struct ifmediareq *imr)
 1247 {
 1248         struct ieee80211vap *vap = ifp->if_softc;
 1249         struct ieee80211com *ic = vap->iv_ic;
 1250         struct wi_softc *sc = ic->ic_ifp->if_softc;
 1251         u_int16_t val;
 1252         int rate, len;
 1253 
 1254         len = sizeof(val);
 1255         if (sc->sc_enabled &&
 1256             wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 &&
 1257             len == sizeof(val)) {
 1258                 /* convert to 802.11 rate */
 1259                 val = le16toh(val);
 1260                 rate = val * 2;
 1261                 if (sc->sc_firmware_type == WI_LUCENT) {
 1262                         if (rate == 10)
 1263                                 rate = 11;      /* 5.5Mbps */
 1264                 } else {
 1265                         if (rate == 4*2)
 1266                                 rate = 11;      /* 5.5Mbps */
 1267                         else if (rate == 8*2)
 1268                                 rate = 22;      /* 11Mbps */
 1269                 }
 1270                 vap->iv_bss->ni_txrate = rate;
 1271         }
 1272         ieee80211_media_status(ifp, imr);
 1273 }
 1274 
 1275 static void
 1276 wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN])
 1277 {
 1278         struct ifnet *ifp = sc->sc_ifp;
 1279         struct ieee80211com *ic = ifp->if_l2com;
 1280         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
 1281         struct ieee80211_node *ni = vap->iv_bss;
 1282 
 1283         if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid))
 1284                 return;
 1285 
 1286         DPRINTF(("wi_sync_bssid: bssid %s -> ", ether_sprintf(ni->ni_bssid)));
 1287         DPRINTF(("%s ?\n", ether_sprintf(new_bssid)));
 1288 
 1289         /* In promiscuous mode, the BSSID field is not a reliable
 1290          * indicator of the firmware's BSSID. Damp spurious
 1291          * change-of-BSSID indications.
 1292          */
 1293         if ((ifp->if_flags & IFF_PROMISC) != 0 &&
 1294             !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns,
 1295                          WI_MAX_FALSE_SYNS))
 1296                 return;
 1297 
 1298         sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1);
 1299 #if 0
 1300         /*
 1301          * XXX hack; we should create a new node with the new bssid
 1302          * and replace the existing ic_bss with it but since we don't
 1303          * process management frames to collect state we cheat by
 1304          * reusing the existing node as we know wi_newstate will be
 1305          * called and it will overwrite the node state.
 1306          */
 1307         ieee80211_sta_join(ic, ieee80211_ref_node(ni));
 1308 #endif
 1309 }
 1310 
 1311 static __noinline void
 1312 wi_rx_intr(struct wi_softc *sc)
 1313 {
 1314         struct ifnet *ifp = sc->sc_ifp;
 1315         struct ieee80211com *ic = ifp->if_l2com;
 1316         struct wi_frame frmhdr;
 1317         struct mbuf *m;
 1318         struct ieee80211_frame *wh;
 1319         struct ieee80211_node *ni;
 1320         int fid, len, off;
 1321         u_int8_t dir;
 1322         u_int16_t status;
 1323         int8_t rssi, nf;
 1324 
 1325         fid = CSR_READ_2(sc, WI_RX_FID);
 1326 
 1327         /* First read in the frame header */
 1328         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) {
 1329                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1330                 ifp->if_ierrors++;
 1331                 DPRINTF(("wi_rx_intr: read fid %x failed\n", fid));
 1332                 return;
 1333         }
 1334 
 1335         /*
 1336          * Drop undecryptable or packets with receive errors here
 1337          */
 1338         status = le16toh(frmhdr.wi_status);
 1339         if (status & WI_STAT_ERRSTAT) {
 1340                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1341                 ifp->if_ierrors++;
 1342                 DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status));
 1343                 return;
 1344         }
 1345 
 1346         len = le16toh(frmhdr.wi_dat_len);
 1347         off = ALIGN(sizeof(struct ieee80211_frame));
 1348 
 1349         /*
 1350          * Sometimes the PRISM2.x returns bogusly large frames. Except
 1351          * in monitor mode, just throw them away.
 1352          */
 1353         if (off + len > MCLBYTES) {
 1354                 if (ic->ic_opmode != IEEE80211_M_MONITOR) {
 1355                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1356                         ifp->if_ierrors++;
 1357                         DPRINTF(("wi_rx_intr: oversized packet\n"));
 1358                         return;
 1359                 } else
 1360                         len = 0;
 1361         }
 1362 
 1363         if (off + len > MHLEN)
 1364                 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
 1365         else
 1366                 m = m_gethdr(M_NOWAIT, MT_DATA);
 1367         if (m == NULL) {
 1368                 CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1369                 ifp->if_ierrors++;
 1370                 DPRINTF(("wi_rx_intr: MGET failed\n"));
 1371                 return;
 1372         }
 1373         m->m_data += off - sizeof(struct ieee80211_frame);
 1374         memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame));
 1375         wi_read_bap(sc, fid, sizeof(frmhdr),
 1376             m->m_data + sizeof(struct ieee80211_frame), len);
 1377         m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len;
 1378         m->m_pkthdr.rcvif = ifp;
 1379 
 1380         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX);
 1381 
 1382         rssi = frmhdr.wi_rx_signal;
 1383         nf = frmhdr.wi_rx_silence;
 1384         if (ieee80211_radiotap_active(ic)) {
 1385                 struct wi_rx_radiotap_header *tap = &sc->sc_rx_th;
 1386                 uint32_t rstamp;
 1387 
 1388                 rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) |
 1389                     le16toh(frmhdr.wi_rx_tstamp1);
 1390                 tap->wr_tsf = htole64((uint64_t)rstamp);
 1391                 /* XXX replace divide by table */
 1392                 tap->wr_rate = frmhdr.wi_rx_rate / 5;
 1393                 tap->wr_flags = 0;
 1394                 if (frmhdr.wi_status & WI_STAT_PCF)
 1395                         tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP;
 1396                 if (m->m_flags & M_WEP)
 1397                         tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP;
 1398                 tap->wr_antsignal = rssi;
 1399                 tap->wr_antnoise = nf;
 1400         }
 1401 
 1402         /* synchronize driver's BSSID with firmware's BSSID */
 1403         wh = mtod(m, struct ieee80211_frame *);
 1404         dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK;
 1405         if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS)
 1406                 wi_sync_bssid(sc, wh->i_addr3);
 1407 
 1408         WI_UNLOCK(sc);
 1409 
 1410         ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *));
 1411         if (ni != NULL) {
 1412                 (void) ieee80211_input(ni, m, rssi, nf);
 1413                 ieee80211_free_node(ni);
 1414         } else
 1415                 (void) ieee80211_input_all(ic, m, rssi, nf);
 1416 
 1417         WI_LOCK(sc);
 1418 }
 1419 
 1420 static __noinline void
 1421 wi_tx_ex_intr(struct wi_softc *sc)
 1422 {
 1423         struct ifnet *ifp = sc->sc_ifp;
 1424         struct wi_frame frmhdr;
 1425         int fid;
 1426 
 1427         fid = CSR_READ_2(sc, WI_TX_CMP_FID);
 1428         /* Read in the frame header */
 1429         if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) {
 1430                 u_int16_t status = le16toh(frmhdr.wi_status);
 1431                 /*
 1432                  * Spontaneous station disconnects appear as xmit
 1433                  * errors.  Don't announce them and/or count them
 1434                  * as an output error.
 1435                  */
 1436                 if ((status & WI_TXSTAT_DISCONNECT) == 0) {
 1437                         if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) {
 1438                                 if_printf(ifp, "tx failed");
 1439                                 if (status & WI_TXSTAT_RET_ERR)
 1440                                         printf(", retry limit exceeded");
 1441                                 if (status & WI_TXSTAT_AGED_ERR)
 1442                                         printf(", max transmit lifetime exceeded");
 1443                                 if (status & WI_TXSTAT_DISCONNECT)
 1444                                         printf(", port disconnected");
 1445                                 if (status & WI_TXSTAT_FORM_ERR)
 1446                                         printf(", invalid format (data len %u src %6D)",
 1447                                                 le16toh(frmhdr.wi_dat_len),
 1448                                                 frmhdr.wi_ehdr.ether_shost, ":");
 1449                                 if (status & ~0xf)
 1450                                         printf(", status=0x%x", status);
 1451                                 printf("\n");
 1452                         }
 1453                         ifp->if_oerrors++;
 1454                 } else {
 1455                         DPRINTF(("port disconnected\n"));
 1456                         ifp->if_collisions++;   /* XXX */
 1457                 }
 1458         } else
 1459                 DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid));
 1460         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC);
 1461 }
 1462 
 1463 static __noinline void
 1464 wi_tx_intr(struct wi_softc *sc)
 1465 {
 1466         struct ifnet *ifp = sc->sc_ifp;
 1467         int fid, cur;
 1468 
 1469         if (sc->wi_gone)
 1470                 return;
 1471 
 1472         fid = CSR_READ_2(sc, WI_ALLOC_FID);
 1473         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
 1474 
 1475         cur = sc->sc_txcur;
 1476         if (sc->sc_txd[cur].d_fid != fid) {
 1477                 if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n",
 1478                     fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext);
 1479                 return;
 1480         }
 1481         sc->sc_tx_timer = 0;
 1482         sc->sc_txd[cur].d_len = 0;
 1483         sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf;
 1484         if (sc->sc_txd[cur].d_len == 0)
 1485                 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
 1486         else {
 1487                 if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid,
 1488                     0, 0)) {
 1489                         if_printf(ifp, "xmit failed\n");
 1490                         sc->sc_txd[cur].d_len = 0;
 1491                 } else {
 1492                         sc->sc_tx_timer = 5;
 1493                 }
 1494         }
 1495 }
 1496 
 1497 static __noinline void
 1498 wi_info_intr(struct wi_softc *sc)
 1499 {
 1500         struct ifnet *ifp = sc->sc_ifp;
 1501         struct ieee80211com *ic = ifp->if_l2com;
 1502         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
 1503         int i, fid, len, off;
 1504         u_int16_t ltbuf[2];
 1505         u_int16_t stat;
 1506         u_int32_t *ptr;
 1507 
 1508         fid = CSR_READ_2(sc, WI_INFO_FID);
 1509         wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf));
 1510 
 1511         switch (le16toh(ltbuf[1])) {
 1512         case WI_INFO_LINK_STAT:
 1513                 wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat));
 1514                 DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat)));
 1515 
 1516                 if (vap == NULL)
 1517                         goto finish;
 1518 
 1519                 switch (le16toh(stat)) {
 1520                 case WI_INFO_LINK_STAT_CONNECTED:
 1521                         if (vap->iv_state == IEEE80211_S_RUN &&
 1522                             vap->iv_opmode != IEEE80211_M_IBSS)
 1523                                 break;
 1524                         /* fall thru... */
 1525                 case WI_INFO_LINK_STAT_AP_CHG:
 1526                         IEEE80211_LOCK(ic);
 1527                         vap->iv_bss->ni_associd = 1 | 0xc000;   /* NB: anything will do */
 1528                         ieee80211_new_state(vap, IEEE80211_S_RUN, 0);
 1529                         IEEE80211_UNLOCK(ic);
 1530                         break;
 1531                 case WI_INFO_LINK_STAT_AP_INR:
 1532                         break;
 1533                 case WI_INFO_LINK_STAT_DISCONNECTED:
 1534                         /* we dropped off the net; e.g. due to deauth/disassoc */
 1535                         IEEE80211_LOCK(ic);
 1536                         vap->iv_bss->ni_associd = 0;
 1537                         vap->iv_stats.is_rx_deauth++;
 1538                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
 1539                         IEEE80211_UNLOCK(ic);
 1540                         break;
 1541                 case WI_INFO_LINK_STAT_AP_OOR:
 1542                         /* XXX does this need to be per-vap? */
 1543                         ieee80211_beacon_miss(ic);
 1544                         break;
 1545                 case WI_INFO_LINK_STAT_ASSOC_FAILED:
 1546                         if (vap->iv_opmode == IEEE80211_M_STA)
 1547                                 ieee80211_new_state(vap, IEEE80211_S_SCAN,
 1548                                     IEEE80211_SCAN_FAIL_TIMEOUT);
 1549                         break;
 1550                 }
 1551                 break;
 1552         case WI_INFO_COUNTERS:
 1553                 /* some card versions have a larger stats structure */
 1554                 len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4);
 1555                 ptr = (u_int32_t *)&sc->sc_stats;
 1556                 off = sizeof(ltbuf);
 1557                 for (i = 0; i < len; i++, off += 2, ptr++) {
 1558                         wi_read_bap(sc, fid, off, &stat, sizeof(stat));
 1559 #ifdef WI_HERMES_STATS_WAR
 1560                         if (stat & 0xf000)
 1561                                 stat = ~stat;
 1562 #endif
 1563                         *ptr += stat;
 1564                 }
 1565                 ifp->if_collisions = sc->sc_stats.wi_tx_single_retries +
 1566                     sc->sc_stats.wi_tx_multi_retries +
 1567                     sc->sc_stats.wi_tx_retry_limit;
 1568                 break;
 1569         default:
 1570                 DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid,
 1571                     le16toh(ltbuf[1]), le16toh(ltbuf[0])));
 1572                 break;
 1573         }
 1574 finish:
 1575         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO);
 1576 }
 1577 
 1578 static int
 1579 wi_write_multi(struct wi_softc *sc)
 1580 {
 1581         struct ifnet *ifp = sc->sc_ifp;
 1582         int n;
 1583         struct ifmultiaddr *ifma;
 1584         struct wi_mcast mlist;
 1585 
 1586         if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
 1587 allmulti:
 1588                 memset(&mlist, 0, sizeof(mlist));
 1589                 return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
 1590                     sizeof(mlist));
 1591         }
 1592 
 1593         n = 0;
 1594         if_maddr_rlock(ifp);
 1595         TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
 1596                 if (ifma->ifma_addr->sa_family != AF_LINK)
 1597                         continue;
 1598                 if (n >= 16)
 1599                         goto allmulti;
 1600                 IEEE80211_ADDR_COPY(&mlist.wi_mcast[n],
 1601                     (LLADDR((struct sockaddr_dl *)ifma->ifma_addr)));
 1602                 n++;
 1603         }
 1604         if_maddr_runlock(ifp);
 1605         return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist,
 1606             IEEE80211_ADDR_LEN * n);
 1607 }
 1608 
 1609 static void
 1610 wi_update_mcast(struct ifnet *ifp)
 1611 {
 1612         wi_write_multi(ifp->if_softc);
 1613 }
 1614 
 1615 static void
 1616 wi_update_promisc(struct ifnet *ifp)
 1617 {
 1618         struct wi_softc *sc = ifp->if_softc;
 1619         struct ieee80211com *ic = ifp->if_l2com;
 1620 
 1621         WI_LOCK(sc);
 1622         /* XXX handle WEP special case handling? */
 1623         wi_write_val(sc, WI_RID_PROMISC, 
 1624             (ic->ic_opmode == IEEE80211_M_MONITOR ||
 1625              (ifp->if_flags & IFF_PROMISC)));
 1626         WI_UNLOCK(sc);
 1627 }
 1628 
 1629 static void
 1630 wi_read_nicid(struct wi_softc *sc)
 1631 {
 1632         struct wi_card_ident *id;
 1633         char *p;
 1634         int len;
 1635         u_int16_t ver[4];
 1636 
 1637         /* getting chip identity */
 1638         memset(ver, 0, sizeof(ver));
 1639         len = sizeof(ver);
 1640         wi_read_rid(sc, WI_RID_CARD_ID, ver, &len);
 1641 
 1642         sc->sc_firmware_type = WI_NOTYPE;
 1643         sc->sc_nic_id = le16toh(ver[0]);
 1644         for (id = wi_card_ident; id->card_name != NULL; id++) {
 1645                 if (sc->sc_nic_id == id->card_id) {
 1646                         sc->sc_nic_name = id->card_name;
 1647                         sc->sc_firmware_type = id->firm_type;
 1648                         break;
 1649                 }
 1650         }
 1651         if (sc->sc_firmware_type == WI_NOTYPE) {
 1652                 if (sc->sc_nic_id & 0x8000) {
 1653                         sc->sc_firmware_type = WI_INTERSIL;
 1654                         sc->sc_nic_name = "Unknown Prism chip";
 1655                 } else {
 1656                         sc->sc_firmware_type = WI_LUCENT;
 1657                         sc->sc_nic_name = "Unknown Lucent chip";
 1658                 }
 1659         }
 1660         if (bootverbose)
 1661                 device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name);
 1662 
 1663         /* get primary firmware version (Only Prism chips) */
 1664         if (sc->sc_firmware_type != WI_LUCENT) {
 1665                 memset(ver, 0, sizeof(ver));
 1666                 len = sizeof(ver);
 1667                 wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len);
 1668                 sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 +
 1669                     le16toh(ver[3]) * 100 + le16toh(ver[1]);
 1670         }
 1671 
 1672         /* get station firmware version */
 1673         memset(ver, 0, sizeof(ver));
 1674         len = sizeof(ver);
 1675         wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len);
 1676         sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 +
 1677             le16toh(ver[3]) * 100 + le16toh(ver[1]);
 1678         if (sc->sc_firmware_type == WI_INTERSIL &&
 1679             (sc->sc_sta_firmware_ver == 10102 ||
 1680              sc->sc_sta_firmware_ver == 20102)) {
 1681                 char ident[12];
 1682                 memset(ident, 0, sizeof(ident));
 1683                 len = sizeof(ident);
 1684                 /* value should be the format like "V2.00-11" */
 1685                 if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 &&
 1686                     *(p = (char *)ident) >= 'A' &&
 1687                     p[2] == '.' && p[5] == '-' && p[8] == '\0') {
 1688                         sc->sc_firmware_type = WI_SYMBOL;
 1689                         sc->sc_sta_firmware_ver = (p[1] - '') * 10000 +
 1690                             (p[3] - '') * 1000 + (p[4] - '') * 100 +
 1691                             (p[6] - '') * 10 + (p[7] - '');
 1692                 }
 1693         }
 1694         if (bootverbose) {
 1695                 device_printf(sc->sc_dev, "%s Firmware: ",
 1696                     wi_firmware_names[sc->sc_firmware_type]);
 1697                 if (sc->sc_firmware_type != WI_LUCENT)  /* XXX */
 1698                         printf("Primary (%u.%u.%u), ",
 1699                             sc->sc_pri_firmware_ver / 10000,
 1700                             (sc->sc_pri_firmware_ver % 10000) / 100,
 1701                             sc->sc_pri_firmware_ver % 100);
 1702                 printf("Station (%u.%u.%u)\n",
 1703                     sc->sc_sta_firmware_ver / 10000,
 1704                     (sc->sc_sta_firmware_ver % 10000) / 100,
 1705                     sc->sc_sta_firmware_ver % 100);
 1706         }
 1707 }
 1708 
 1709 static int
 1710 wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen)
 1711 {
 1712         struct wi_ssid ssid;
 1713 
 1714         if (buflen > IEEE80211_NWID_LEN)
 1715                 return ENOBUFS;
 1716         memset(&ssid, 0, sizeof(ssid));
 1717         ssid.wi_len = htole16(buflen);
 1718         memcpy(ssid.wi_ssid, buf, buflen);
 1719         return wi_write_rid(sc, rid, &ssid, sizeof(ssid));
 1720 }
 1721 
 1722 static int
 1723 wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap)
 1724 {
 1725         static const uint16_t lucent_rates[12] = {
 1726             [ 0] = 3,   /* auto */
 1727             [ 1] = 1,   /* 1Mb/s */
 1728             [ 2] = 2,   /* 2Mb/s */
 1729             [ 5] = 4,   /* 5.5Mb/s */
 1730             [11] = 5    /* 11Mb/s */
 1731         };
 1732         static const uint16_t intersil_rates[12] = {
 1733             [ 0] = 0xf, /* auto */
 1734             [ 1] = 0,   /* 1Mb/s */
 1735             [ 2] = 1,   /* 2Mb/s */
 1736             [ 5] = 2,   /* 5.5Mb/s */
 1737             [11] = 3,   /* 11Mb/s */
 1738         };
 1739         const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ?
 1740             lucent_rates : intersil_rates;
 1741         struct ieee80211com *ic = vap->iv_ic;
 1742         const struct ieee80211_txparam *tp;
 1743 
 1744         tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
 1745         return wi_write_val(sc, WI_RID_TX_RATE,
 1746             (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ?
 1747                 rates[0] : rates[tp->ucastrate / 2]));
 1748 }
 1749 
 1750 static int
 1751 wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap)
 1752 {
 1753         int error = 0;
 1754         int i, keylen;
 1755         u_int16_t val;
 1756         struct wi_key wkey[IEEE80211_WEP_NKID];
 1757 
 1758         switch (sc->sc_firmware_type) {
 1759         case WI_LUCENT:
 1760                 val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0;
 1761                 error = wi_write_val(sc, WI_RID_ENCRYPTION, val);
 1762                 if (error)
 1763                         break;
 1764                 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
 1765                         break;
 1766                 error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey);
 1767                 if (error)
 1768                         break;
 1769                 memset(wkey, 0, sizeof(wkey));
 1770                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
 1771                         keylen = vap->iv_nw_keys[i].wk_keylen;
 1772                         wkey[i].wi_keylen = htole16(keylen);
 1773                         memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key,
 1774                             keylen);
 1775                 }
 1776                 error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS,
 1777                     wkey, sizeof(wkey));
 1778                 sc->sc_encryption = 0;
 1779                 break;
 1780 
 1781         case WI_INTERSIL:
 1782                 val = HOST_ENCRYPT | HOST_DECRYPT;
 1783                 if (vap->iv_flags & IEEE80211_F_PRIVACY) {
 1784                         /*
 1785                          * ONLY HWB3163 EVAL-CARD Firmware version
 1786                          * less than 0.8 variant2
 1787                          *
 1788                          *   If promiscuous mode disable, Prism2 chip
 1789                          *  does not work with WEP .
 1790                          * It is under investigation for details.
 1791                          * (ichiro@netbsd.org)
 1792                          */
 1793                         if (sc->sc_sta_firmware_ver < 802 ) {
 1794                                 /* firm ver < 0.8 variant 2 */
 1795                                 wi_write_val(sc, WI_RID_PROMISC, 1);
 1796                         }
 1797                         wi_write_val(sc, WI_RID_CNFAUTHMODE,
 1798                             vap->iv_bss->ni_authmode);
 1799                         val |= PRIVACY_INVOKED;
 1800                 } else {
 1801                         wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN);
 1802                 }
 1803                 error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val);
 1804                 if (error)
 1805                         break;
 1806                 sc->sc_encryption = val;
 1807                 if ((val & PRIVACY_INVOKED) == 0)
 1808                         break;
 1809                 error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey);
 1810                 break;
 1811         }
 1812         return error;
 1813 }
 1814 
 1815 static int
 1816 wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2)
 1817 {
 1818         int i, s = 0;
 1819 
 1820         if (sc->wi_gone)
 1821                 return (ENODEV);
 1822 
 1823         /* wait for the busy bit to clear */
 1824         for (i = sc->wi_cmd_count; i > 0; i--) {        /* 500ms */
 1825                 if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
 1826                         break;
 1827                 DELAY(1*1000);  /* 1ms */
 1828         }
 1829         if (i == 0) {
 1830                 device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n",
 1831                    __func__, cmd);
 1832                 sc->wi_gone = 1;
 1833                 return(ETIMEDOUT);
 1834         }
 1835 
 1836         CSR_WRITE_2(sc, WI_PARAM0, val0);
 1837         CSR_WRITE_2(sc, WI_PARAM1, val1);
 1838         CSR_WRITE_2(sc, WI_PARAM2, val2);
 1839         CSR_WRITE_2(sc, WI_COMMAND, cmd);
 1840 
 1841         if (cmd == WI_CMD_INI) {
 1842                 /* XXX: should sleep here. */
 1843                 DELAY(100*1000);                /* 100ms delay for init */
 1844         }
 1845         for (i = 0; i < WI_TIMEOUT; i++) {
 1846                 /*
 1847                  * Wait for 'command complete' bit to be
 1848                  * set in the event status register.
 1849                  */
 1850                 s = CSR_READ_2(sc, WI_EVENT_STAT);
 1851                 if (s & WI_EV_CMD) {
 1852                         /* Ack the event and read result code. */
 1853                         s = CSR_READ_2(sc, WI_STATUS);
 1854                         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD);
 1855                         if (s & WI_STAT_CMD_RESULT) {
 1856                                 return(EIO);
 1857                         }
 1858                         break;
 1859                 }
 1860                 DELAY(WI_DELAY);
 1861         }
 1862 
 1863         if (i == WI_TIMEOUT) {
 1864                 device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; "
 1865                     "event status 0x%04x\n", __func__, cmd, s);
 1866                 if (s == 0xffff)
 1867                         sc->wi_gone = 1;
 1868                 return(ETIMEDOUT);
 1869         }
 1870         return (0);
 1871 }
 1872 
 1873 static int
 1874 wi_seek_bap(struct wi_softc *sc, int id, int off)
 1875 {
 1876         int i, status;
 1877 
 1878         CSR_WRITE_2(sc, WI_SEL0, id);
 1879         CSR_WRITE_2(sc, WI_OFF0, off);
 1880 
 1881         for (i = 0; ; i++) {
 1882                 status = CSR_READ_2(sc, WI_OFF0);
 1883                 if ((status & WI_OFF_BUSY) == 0)
 1884                         break;
 1885                 if (i == WI_TIMEOUT) {
 1886                         device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n",
 1887                             __func__, id, off);
 1888                         sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
 1889                         if (status == 0xffff)
 1890                                 sc->wi_gone = 1;
 1891                         return ETIMEDOUT;
 1892                 }
 1893                 DELAY(1);
 1894         }
 1895         if (status & WI_OFF_ERR) {
 1896                 device_printf(sc->sc_dev, "%s: error, id %x off %x\n",
 1897                     __func__, id, off);
 1898                 sc->sc_bap_off = WI_OFF_ERR;    /* invalidate */
 1899                 return EIO;
 1900         }
 1901         sc->sc_bap_id = id;
 1902         sc->sc_bap_off = off;
 1903         return 0;
 1904 }
 1905 
 1906 static int
 1907 wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
 1908 {
 1909         int error, cnt;
 1910 
 1911         if (buflen == 0)
 1912                 return 0;
 1913         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
 1914                 if ((error = wi_seek_bap(sc, id, off)) != 0)
 1915                         return error;
 1916         }
 1917         cnt = (buflen + 1) / 2;
 1918         CSR_READ_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt);
 1919         sc->sc_bap_off += cnt * 2;
 1920         return 0;
 1921 }
 1922 
 1923 static int
 1924 wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen)
 1925 {
 1926         int error, cnt;
 1927 
 1928         if (buflen == 0)
 1929                 return 0;
 1930 
 1931         if (id != sc->sc_bap_id || off != sc->sc_bap_off) {
 1932                 if ((error = wi_seek_bap(sc, id, off)) != 0)
 1933                         return error;
 1934         }
 1935         cnt = (buflen + 1) / 2;
 1936         CSR_WRITE_MULTI_STREAM_2(sc, WI_DATA0, (u_int16_t *)buf, cnt);
 1937         sc->sc_bap_off += cnt * 2;
 1938 
 1939         return 0;
 1940 }
 1941 
 1942 static int
 1943 wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen)
 1944 {
 1945         int error, len;
 1946         struct mbuf *m;
 1947 
 1948         for (m = m0; m != NULL && totlen > 0; m = m->m_next) {
 1949                 if (m->m_len == 0)
 1950                         continue;
 1951 
 1952                 len = min(m->m_len, totlen);
 1953 
 1954                 if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) {
 1955                         m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf);
 1956                         return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf,
 1957                             totlen);
 1958                 }
 1959 
 1960                 if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0)
 1961                         return error;
 1962 
 1963                 off += m->m_len;
 1964                 totlen -= len;
 1965         }
 1966         return 0;
 1967 }
 1968 
 1969 static int
 1970 wi_alloc_fid(struct wi_softc *sc, int len, int *idp)
 1971 {
 1972         int i;
 1973 
 1974         if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) {
 1975                 device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n",
 1976                     __func__, len);
 1977                 return ENOMEM;
 1978         }
 1979 
 1980         for (i = 0; i < WI_TIMEOUT; i++) {
 1981                 if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC)
 1982                         break;
 1983                 DELAY(1);
 1984         }
 1985         if (i == WI_TIMEOUT) {
 1986                 device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__);
 1987                 return ETIMEDOUT;
 1988         }
 1989         *idp = CSR_READ_2(sc, WI_ALLOC_FID);
 1990         CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC);
 1991         return 0;
 1992 }
 1993 
 1994 static int
 1995 wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp)
 1996 {
 1997         int error, len;
 1998         u_int16_t ltbuf[2];
 1999 
 2000         /* Tell the NIC to enter record read mode. */
 2001         error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0);
 2002         if (error)
 2003                 return error;
 2004 
 2005         error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
 2006         if (error)
 2007                 return error;
 2008 
 2009         if (le16toh(ltbuf[1]) != rid) {
 2010                 device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n",
 2011                     rid, le16toh(ltbuf[1]));
 2012                 return EIO;
 2013         }
 2014         len = (le16toh(ltbuf[0]) - 1) * 2;       /* already got rid */
 2015         if (*buflenp < len) {
 2016                 device_printf(sc->sc_dev, "record buffer is too small, "
 2017                     "rid=%x, size=%d, len=%d\n",
 2018                     rid, *buflenp, len);
 2019                 return ENOSPC;
 2020         }
 2021         *buflenp = len;
 2022         return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len);
 2023 }
 2024 
 2025 static int
 2026 wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen)
 2027 {
 2028         int error;
 2029         u_int16_t ltbuf[2];
 2030 
 2031         ltbuf[0] = htole16((buflen + 1) / 2 + 1);        /* includes rid */
 2032         ltbuf[1] = htole16(rid);
 2033 
 2034         error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf));
 2035         if (error) {
 2036                 device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n",
 2037                     __func__, rid);
 2038                 return error;
 2039         }
 2040         error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen);
 2041         if (error) {
 2042                 device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n",
 2043                     __func__, rid);
 2044                 return error;
 2045         }
 2046 
 2047         return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0);
 2048 }
 2049 
 2050 static int
 2051 wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie)
 2052 {
 2053         /* NB: 42 bytes is probably ok to have on the stack */
 2054         char buf[sizeof(uint16_t) + 40];
 2055 
 2056         if (ie->ie_len > 40)
 2057                 return EINVAL;
 2058         /* NB: firmware requires 16-bit ie length before ie data */
 2059         *(uint16_t *) buf = htole16(ie->ie_len);
 2060         memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len);
 2061         return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t));
 2062 }
 2063 
 2064 int
 2065 wi_alloc(device_t dev, int rid)
 2066 {
 2067         struct wi_softc *sc = device_get_softc(dev);
 2068 
 2069         if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
 2070                 sc->iobase_rid = rid;
 2071                 sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT,
 2072                     &sc->iobase_rid, 0, ~0, (1 << 6),
 2073                     rman_make_alignment_flags(1 << 6) | RF_ACTIVE);
 2074                 if (sc->iobase == NULL) {
 2075                         device_printf(dev, "No I/O space?!\n");
 2076                         return ENXIO;
 2077                 }
 2078 
 2079                 sc->wi_io_addr = rman_get_start(sc->iobase);
 2080                 sc->wi_btag = rman_get_bustag(sc->iobase);
 2081                 sc->wi_bhandle = rman_get_bushandle(sc->iobase);
 2082         } else {
 2083                 sc->mem_rid = rid;
 2084                 sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
 2085                     &sc->mem_rid, RF_ACTIVE);
 2086                 if (sc->mem == NULL) {
 2087                         device_printf(dev, "No Mem space on prism2.5?\n");
 2088                         return ENXIO;
 2089                 }
 2090 
 2091                 sc->wi_btag = rman_get_bustag(sc->mem);
 2092                 sc->wi_bhandle = rman_get_bushandle(sc->mem);
 2093         }
 2094 
 2095         sc->irq_rid = 0;
 2096         sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
 2097             RF_ACTIVE |
 2098             ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE));
 2099         if (sc->irq == NULL) {
 2100                 wi_free(dev);
 2101                 device_printf(dev, "No irq?!\n");
 2102                 return ENXIO;
 2103         }
 2104 
 2105         sc->sc_dev = dev;
 2106         sc->sc_unit = device_get_unit(dev);
 2107         return 0;
 2108 }
 2109 
 2110 void
 2111 wi_free(device_t dev)
 2112 {
 2113         struct wi_softc *sc = device_get_softc(dev);
 2114 
 2115         if (sc->iobase != NULL) {
 2116                 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
 2117                 sc->iobase = NULL;
 2118         }
 2119         if (sc->irq != NULL) {
 2120                 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
 2121                 sc->irq = NULL;
 2122         }
 2123         if (sc->mem != NULL) {
 2124                 bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem);
 2125                 sc->mem = NULL;
 2126         }
 2127 }

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