/*- * Copyright (c) 1997, 1998, 1999 * Bill Paul . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD: head/sys/dev/wi/if_wi.c 196970 2009-09-08 13:19:05Z phk $ */ /* * Lucent WaveLAN/IEEE 802.11 PCMCIA driver. * * Original FreeBSD driver written by Bill Paul * Electrical Engineering Department * Columbia University, New York City */ /* * The WaveLAN/IEEE adapter is the second generation of the WaveLAN * from Lucent. Unlike the older cards, the new ones are programmed * entirely via a firmware-driven controller called the Hermes. * Unfortunately, Lucent will not release the Hermes programming manual * without an NDA (if at all). What they do release is an API library * called the HCF (Hardware Control Functions) which is supposed to * do the device-specific operations of a device driver for you. The * publically available version of the HCF library (the 'HCF Light') is * a) extremely gross, b) lacks certain features, particularly support * for 802.11 frames, and c) is contaminated by the GNU Public License. * * This driver does not use the HCF or HCF Light at all. Instead, it * programs the Hermes controller directly, using information gleaned * from the HCF Light code and corresponding documentation. * * This driver supports the ISA, PCMCIA and PCI versions of the Lucent * WaveLan cards (based on the Hermes chipset), as well as the newer * Prism 2 chipsets with firmware from Intersil and Symbol. */ #define WI_HERMES_STATS_WAR /* Work around stats counter bug. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static struct ieee80211vap *wi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, int opmode, int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], const uint8_t mac[IEEE80211_ADDR_LEN]); static void wi_vap_delete(struct ieee80211vap *vap); static void wi_stop_locked(struct wi_softc *sc, int disable); static void wi_start_locked(struct ifnet *); static void wi_start(struct ifnet *); static int wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0); static int wi_raw_xmit(struct ieee80211_node *, struct mbuf *, const struct ieee80211_bpf_params *); static int wi_newstate_sta(struct ieee80211vap *, enum ieee80211_state, int); static int wi_newstate_hostap(struct ieee80211vap *, enum ieee80211_state, int); static void wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype, int rssi, int nf); static int wi_reset(struct wi_softc *); static void wi_watchdog_callout(void *); static int wi_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *); static void wi_media_status(struct ifnet *, struct ifmediareq *); static void wi_rx_intr(struct wi_softc *); static void wi_tx_intr(struct wi_softc *); static void wi_tx_ex_intr(struct wi_softc *); static void wi_info_intr(struct wi_softc *); static int wi_write_txrate(struct wi_softc *, struct ieee80211vap *); static int wi_write_wep(struct wi_softc *, struct ieee80211vap *); static int wi_write_multi(struct wi_softc *); static void wi_update_mcast(struct ifnet *); static void wi_update_promisc(struct ifnet *); static int wi_alloc_fid(struct wi_softc *, int, int *); static void wi_read_nicid(struct wi_softc *); static int wi_write_ssid(struct wi_softc *, int, u_int8_t *, int); static int wi_cmd(struct wi_softc *, int, int, int, int); static int wi_seek_bap(struct wi_softc *, int, int); static int wi_read_bap(struct wi_softc *, int, int, void *, int); static int wi_write_bap(struct wi_softc *, int, int, void *, int); static int wi_mwrite_bap(struct wi_softc *, int, int, struct mbuf *, int); static int wi_read_rid(struct wi_softc *, int, void *, int *); static int wi_write_rid(struct wi_softc *, int, void *, int); static int wi_write_appie(struct wi_softc *, int, const struct ieee80211_appie *); static void wi_scan_start(struct ieee80211com *); static void wi_scan_end(struct ieee80211com *); static void wi_set_channel(struct ieee80211com *); static __inline int wi_write_val(struct wi_softc *sc, int rid, u_int16_t val) { val = htole16(val); return wi_write_rid(sc, rid, &val, sizeof(val)); } SYSCTL_NODE(_hw, OID_AUTO, wi, CTLFLAG_RD, 0, "Wireless driver parameters"); static struct timeval lasttxerror; /* time of last tx error msg */ static int curtxeps; /* current tx error msgs/sec */ static int wi_txerate = 0; /* tx error rate: max msgs/sec */ SYSCTL_INT(_hw_wi, OID_AUTO, txerate, CTLFLAG_RW, &wi_txerate, 0, "max tx error msgs/sec; 0 to disable msgs"); #define WI_DEBUG #ifdef WI_DEBUG static int wi_debug = 0; SYSCTL_INT(_hw_wi, OID_AUTO, debug, CTLFLAG_RW, &wi_debug, 0, "control debugging printfs"); #define DPRINTF(X) if (wi_debug) kprintf X #else #define DPRINTF(X) #endif #define WI_INTRS (WI_EV_RX | WI_EV_ALLOC | WI_EV_INFO) struct wi_card_ident wi_card_ident[] = { /* CARD_ID CARD_NAME FIRM_TYPE */ { WI_NIC_LUCENT_ID, WI_NIC_LUCENT_STR, WI_LUCENT }, { WI_NIC_SONY_ID, WI_NIC_SONY_STR, WI_LUCENT }, { WI_NIC_LUCENT_EMB_ID, WI_NIC_LUCENT_EMB_STR, WI_LUCENT }, { WI_NIC_EVB2_ID, WI_NIC_EVB2_STR, WI_INTERSIL }, { WI_NIC_HWB3763_ID, WI_NIC_HWB3763_STR, WI_INTERSIL }, { WI_NIC_HWB3163_ID, WI_NIC_HWB3163_STR, WI_INTERSIL }, { WI_NIC_HWB3163B_ID, WI_NIC_HWB3163B_STR, WI_INTERSIL }, { WI_NIC_EVB3_ID, WI_NIC_EVB3_STR, WI_INTERSIL }, { WI_NIC_HWB1153_ID, WI_NIC_HWB1153_STR, WI_INTERSIL }, { WI_NIC_P2_SST_ID, WI_NIC_P2_SST_STR, WI_INTERSIL }, { WI_NIC_EVB2_SST_ID, WI_NIC_EVB2_SST_STR, WI_INTERSIL }, { WI_NIC_3842_EVA_ID, WI_NIC_3842_EVA_STR, WI_INTERSIL }, { WI_NIC_3842_PCMCIA_AMD_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, { WI_NIC_3842_PCMCIA_SST_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, { WI_NIC_3842_PCMCIA_ATL_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, { WI_NIC_3842_PCMCIA_ATS_ID, WI_NIC_3842_PCMCIA_STR, WI_INTERSIL }, { WI_NIC_3842_MINI_AMD_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, { WI_NIC_3842_MINI_SST_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, { WI_NIC_3842_MINI_ATL_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, { WI_NIC_3842_MINI_ATS_ID, WI_NIC_3842_MINI_STR, WI_INTERSIL }, { WI_NIC_3842_PCI_AMD_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, { WI_NIC_3842_PCI_SST_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, { WI_NIC_3842_PCI_ATS_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, { WI_NIC_3842_PCI_ATL_ID, WI_NIC_3842_PCI_STR, WI_INTERSIL }, { WI_NIC_P3_PCMCIA_AMD_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, { WI_NIC_P3_PCMCIA_SST_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, { WI_NIC_P3_PCMCIA_ATL_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, { WI_NIC_P3_PCMCIA_ATS_ID, WI_NIC_P3_PCMCIA_STR, WI_INTERSIL }, { WI_NIC_P3_MINI_AMD_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, { WI_NIC_P3_MINI_SST_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, { WI_NIC_P3_MINI_ATL_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, { WI_NIC_P3_MINI_ATS_ID, WI_NIC_P3_MINI_STR, WI_INTERSIL }, { 0, NULL, 0 }, }; static char *wi_firmware_names[] = { "none", "Hermes", "Intersil", "Symbol" }; devclass_t wi_devclass; int wi_attach(device_t dev) { struct wi_softc *sc = device_get_softc(dev); struct ieee80211com *ic; struct ifnet *ifp; int i, nrates, buflen; u_int16_t val; u_int8_t ratebuf[2 + IEEE80211_RATE_SIZE]; struct ieee80211_rateset *rs; struct sysctl_ctx_list *sctx; struct sysctl_oid *soid; static const u_int8_t empty_macaddr[IEEE80211_ADDR_LEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; int error; uint8_t macaddr[IEEE80211_ADDR_LEN]; ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); if (ifp == NULL) { device_printf(dev, "can not if_alloc\n"); wi_free(dev); return ENOSPC; } ic = ifp->if_l2com; sc->sc_firmware_type = WI_NOTYPE; sc->wi_cmd_count = 500; /* Reset the NIC. */ if (wi_reset(sc) != 0) { wi_free(dev); return ENXIO; /* XXX */ } /* Read NIC identification */ wi_read_nicid(sc); switch (sc->sc_firmware_type) { case WI_LUCENT: if (sc->sc_sta_firmware_ver < 60006) goto reject; break; case WI_INTERSIL: if (sc->sc_sta_firmware_ver < 800) goto reject; break; default: reject: device_printf(dev, "Sorry, this card is not supported " "(type %d, firmware ver %d)\n", sc->sc_firmware_type, sc->sc_sta_firmware_ver); wi_free(dev); return EOPNOTSUPP; } /* Export info about the device via sysctl */ sctx = &sc->sc_sysctl_ctx; sysctl_ctx_init(sctx); soid = SYSCTL_ADD_NODE(sctx, SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, device_get_nameunit(sc->sc_dev), CTLFLAG_RD, 0, ""); if (soid == NULL) { device_printf(sc->sc_dev, "can't add sysctl node\n"); return ENXIO; } SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "firmware_type", CTLFLAG_RD, wi_firmware_names[sc->sc_firmware_type], 0, "Firmware type string"); SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "sta_version", CTLFLAG_RD, &sc->sc_sta_firmware_ver, 0, "Station Firmware version"); if (sc->sc_firmware_type == WI_INTERSIL) SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "pri_version", CTLFLAG_RD, &sc->sc_pri_firmware_ver, 0, "Primary Firmware version"); SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_id", CTLFLAG_RD, &sc->sc_nic_id, 0, "NIC id"); SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "nic_name", CTLFLAG_RD, sc->sc_nic_name, 0, "NIC name"); callout_init(&sc->sc_watchdog); /* * Read the station address. * And do it twice. I've seen PRISM-based cards that return * an error when trying to read it the first time, which causes * the probe to fail. */ buflen = IEEE80211_ADDR_LEN; error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); if (error != 0) { buflen = IEEE80211_ADDR_LEN; error = wi_read_rid(sc, WI_RID_MAC_NODE, macaddr, &buflen); } if (error || IEEE80211_ADDR_EQ(macaddr, empty_macaddr)) { if (error != 0) device_printf(dev, "mac read failed %d\n", error); else { device_printf(dev, "mac read failed (all zeros)\n"); error = ENXIO; } wi_free(dev); return (error); } ifp->if_softc = sc; if_initname(ifp, device_get_name(dev), device_get_unit(dev)); ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_ioctl = wi_ioctl; ifp->if_start = wi_start; ifp->if_init = wi_init; ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN); ifq_set_ready(&ifp->if_snd); ic->ic_ifp = ifp; ic->ic_phytype = IEEE80211_T_DS; ic->ic_opmode = IEEE80211_M_STA; ic->ic_caps = IEEE80211_C_STA | IEEE80211_C_PMGT | IEEE80211_C_MONITOR ; /* * Query the card for available channels and setup the * channel table. We assume these are all 11b channels. */ buflen = sizeof(val); if (wi_read_rid(sc, WI_RID_CHANNEL_LIST, &val, &buflen) != 0) val = htole16(0x1fff); /* assume 1-11 */ KASSERT(val != 0, ("wi_attach: no available channels listed!")); val <<= 1; /* shift for base 1 indices */ for (i = 1; i < 16; i++) { struct ieee80211_channel *c; if (!isset((u_int8_t*)&val, i)) continue; c = &ic->ic_channels[ic->ic_nchans++]; c->ic_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); c->ic_flags = IEEE80211_CHAN_B; c->ic_ieee = i; /* XXX txpowers? */ } /* * Set flags based on firmware version. */ switch (sc->sc_firmware_type) { case WI_LUCENT: sc->sc_ntxbuf = 1; ic->ic_caps |= IEEE80211_C_IBSS; sc->sc_ibss_port = WI_PORTTYPE_BSS; sc->sc_monitor_port = WI_PORTTYPE_ADHOC; sc->sc_min_rssi = WI_LUCENT_MIN_RSSI; sc->sc_max_rssi = WI_LUCENT_MAX_RSSI; sc->sc_dbm_offset = WI_LUCENT_DBM_OFFSET; break; case WI_INTERSIL: sc->sc_ntxbuf = WI_NTXBUF; sc->sc_flags |= WI_FLAGS_HAS_FRAGTHR | WI_FLAGS_HAS_ROAMING; /* * Old firmware are slow, so give peace a chance. */ if (sc->sc_sta_firmware_ver < 10000) sc->wi_cmd_count = 5000; if (sc->sc_sta_firmware_ver > 10101) sc->sc_flags |= WI_FLAGS_HAS_DBMADJUST; ic->ic_caps |= IEEE80211_C_IBSS; /* * version 0.8.3 and newer are the only ones that are known * to currently work. Earlier versions can be made to work, * at least according to the Linux driver but we require * monitor mode so this is irrelevant. */ ic->ic_caps |= IEEE80211_C_HOSTAP; if (sc->sc_sta_firmware_ver >= 10603) sc->sc_flags |= WI_FLAGS_HAS_ENHSECURITY; if (sc->sc_sta_firmware_ver >= 10700) { /* * 1.7.0+ have the necessary support for sta mode WPA. */ sc->sc_flags |= WI_FLAGS_HAS_WPASUPPORT; ic->ic_caps |= IEEE80211_C_WPA; } sc->sc_ibss_port = WI_PORTTYPE_IBSS; sc->sc_monitor_port = WI_PORTTYPE_APSILENT; sc->sc_min_rssi = WI_PRISM_MIN_RSSI; sc->sc_max_rssi = WI_PRISM_MAX_RSSI; sc->sc_dbm_offset = WI_PRISM_DBM_OFFSET; break; } /* * Find out if we support WEP on this card. */ buflen = sizeof(val); if (wi_read_rid(sc, WI_RID_WEP_AVAIL, &val, &buflen) == 0 && val != htole16(0)) ic->ic_cryptocaps |= IEEE80211_CRYPTO_WEP; /* Find supported rates. */ buflen = sizeof(ratebuf); rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; if (wi_read_rid(sc, WI_RID_DATA_RATES, ratebuf, &buflen) == 0) { nrates = le16toh(*(u_int16_t *)ratebuf); if (nrates > IEEE80211_RATE_MAXSIZE) nrates = IEEE80211_RATE_MAXSIZE; rs->rs_nrates = 0; for (i = 0; i < nrates; i++) if (ratebuf[2+i]) rs->rs_rates[rs->rs_nrates++] = ratebuf[2+i]; } else { /* XXX fallback on error? */ } buflen = sizeof(val); if ((sc->sc_flags & WI_FLAGS_HAS_DBMADJUST) && wi_read_rid(sc, WI_RID_DBM_ADJUST, &val, &buflen) == 0) { sc->sc_dbm_offset = le16toh(val); } sc->sc_portnum = WI_DEFAULT_PORT; ieee80211_ifattach(ic, macaddr); ic->ic_raw_xmit = wi_raw_xmit; ic->ic_scan_start = wi_scan_start; ic->ic_scan_end = wi_scan_end; ic->ic_set_channel = wi_set_channel; ic->ic_vap_create = wi_vap_create; ic->ic_vap_delete = wi_vap_delete; ic->ic_update_mcast = wi_update_mcast; ic->ic_update_promisc = wi_update_promisc; ieee80211_radiotap_attach(ic, &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), WI_TX_RADIOTAP_PRESENT, &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), WI_RX_RADIOTAP_PRESENT); if (bootverbose) ieee80211_announce(ic); error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE, wi_intr, sc, &sc->wi_intrhand, NULL); if (error) { device_printf(dev, "bus_setup_intr() failed! (%d)\n", error); ieee80211_ifdetach(ic); if_free(sc->sc_ifp); wi_free(dev); return error; } return (0); } int wi_detach(device_t dev) { struct wi_softc *sc = device_get_softc(dev); struct ifnet *ifp = sc->sc_ifp; struct ieee80211com *ic = ifp->if_l2com; /* check if device was removed */ sc->wi_gone |= !bus_child_present(dev); wi_stop_locked(sc, 0); ieee80211_ifdetach(ic); bus_teardown_intr(dev, sc->irq, sc->wi_intrhand); if_free(sc->sc_ifp); wi_free(dev); return (0); } static struct ieee80211vap * wi_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, int opmode, int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], const uint8_t mac[IEEE80211_ADDR_LEN]) { struct wi_softc *sc = ic->ic_ifp->if_softc; struct wi_vap *wvp; struct ieee80211vap *vap; if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ return NULL; wvp = (struct wi_vap *) kmalloc(sizeof(struct wi_vap), M_80211_VAP, M_NOWAIT | M_ZERO); if (wvp == NULL) return NULL; vap = &wvp->wv_vap; ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); vap->iv_max_aid = WI_MAX_AID; switch (opmode) { case IEEE80211_M_STA: sc->sc_porttype = WI_PORTTYPE_BSS; wvp->wv_newstate = vap->iv_newstate; vap->iv_newstate = wi_newstate_sta; /* need to filter mgt frames to avoid confusing state machine */ wvp->wv_recv_mgmt = vap->iv_recv_mgmt; vap->iv_recv_mgmt = wi_recv_mgmt; break; case IEEE80211_M_IBSS: sc->sc_porttype = sc->sc_ibss_port; wvp->wv_newstate = vap->iv_newstate; vap->iv_newstate = wi_newstate_sta; break; case IEEE80211_M_AHDEMO: sc->sc_porttype = WI_PORTTYPE_ADHOC; break; case IEEE80211_M_HOSTAP: sc->sc_porttype = WI_PORTTYPE_HOSTAP; wvp->wv_newstate = vap->iv_newstate; vap->iv_newstate = wi_newstate_hostap; break; case IEEE80211_M_MONITOR: sc->sc_porttype = sc->sc_monitor_port; break; default: break; } /* complete setup */ ieee80211_vap_attach(vap, ieee80211_media_change, wi_media_status); ic->ic_opmode = opmode; return vap; } static void wi_vap_delete(struct ieee80211vap *vap) { struct wi_vap *wvp = WI_VAP(vap); ieee80211_vap_detach(vap); kfree(wvp, M_80211_VAP); } int wi_shutdown(device_t dev) { struct wi_softc *sc = device_get_softc(dev); wi_stop(sc, 1); return (0); } void wi_intr(void *arg) { struct wi_softc *sc = arg; struct ifnet *ifp = sc->sc_ifp; u_int16_t status; if (sc->wi_gone || !sc->sc_enabled || (ifp->if_flags & IFF_UP) == 0) { CSR_WRITE_2(sc, WI_INT_EN, 0); CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); return; } /* Disable interrupts. */ CSR_WRITE_2(sc, WI_INT_EN, 0); status = CSR_READ_2(sc, WI_EVENT_STAT); if (status & WI_EV_RX) wi_rx_intr(sc); if (status & WI_EV_ALLOC) wi_tx_intr(sc); if (status & WI_EV_TX_EXC) wi_tx_ex_intr(sc); if (status & WI_EV_INFO) wi_info_intr(sc); if (!ifq_is_oactive(&ifp->if_snd) && !ifq_is_empty(&ifp->if_snd)) wi_start_locked(ifp); /* Re-enable interrupts. */ CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); return; } static void wi_enable(struct wi_softc *sc) { /* Enable interrupts */ CSR_WRITE_2(sc, WI_INT_EN, WI_INTRS); /* enable port */ wi_cmd(sc, WI_CMD_ENABLE | sc->sc_portnum, 0, 0, 0); sc->sc_enabled = 1; } static int wi_setup_locked(struct wi_softc *sc, int porttype, int mode, uint8_t mac[IEEE80211_ADDR_LEN]) { int i; wi_reset(sc); wi_write_val(sc, WI_RID_PORTTYPE, porttype); wi_write_val(sc, WI_RID_CREATE_IBSS, mode); wi_write_val(sc, WI_RID_MAX_DATALEN, 2304); /* XXX IEEE80211_BPF_NOACK wants 0 */ wi_write_val(sc, WI_RID_ALT_RETRY_CNT, 2); if (sc->sc_flags & WI_FLAGS_HAS_ROAMING) wi_write_val(sc, WI_RID_ROAMING_MODE, 3); /* NB: disabled */ wi_write_rid(sc, WI_RID_MAC_NODE, mac, IEEE80211_ADDR_LEN); /* Allocate fids for the card */ sc->sc_buflen = IEEE80211_MAX_LEN + sizeof(struct wi_frame); for (i = 0; i < sc->sc_ntxbuf; i++) { int error = wi_alloc_fid(sc, sc->sc_buflen, &sc->sc_txd[i].d_fid); if (error) { device_printf(sc->sc_dev, "tx buffer allocation failed (error %u)\n", error); return error; } sc->sc_txd[i].d_len = 0; } sc->sc_txcur = sc->sc_txnext = 0; return 0; } static void wi_init_locked(struct wi_softc *sc) { struct ifnet *ifp = sc->sc_ifp; int wasenabled; wasenabled = sc->sc_enabled; if (wasenabled) wi_stop_locked(sc, 1); if (wi_setup_locked(sc, sc->sc_porttype, 3, IF_LLADDR(ifp)) != 0) { if_printf(ifp, "interface not running\n"); wi_stop_locked(sc, 1); return; } ifp->if_flags |= IFF_RUNNING; ifq_clr_oactive(&ifp->if_snd); callout_reset(&sc->sc_watchdog, hz, wi_watchdog_callout, sc); wi_enable(sc); /* Enable desired port */ } void wi_init(void *arg) { struct wi_softc *sc = arg; struct ifnet *ifp = sc->sc_ifp; struct ieee80211com *ic = ifp->if_l2com; wi_init_locked(sc); if (ifp->if_flags & IFF_RUNNING) ieee80211_start_all(ic); /* start all vap's */ } static void wi_stop_locked(struct wi_softc *sc, int disable) { struct ifnet *ifp = sc->sc_ifp; if (sc->sc_enabled && !sc->wi_gone) { CSR_WRITE_2(sc, WI_INT_EN, 0); wi_cmd(sc, WI_CMD_DISABLE | sc->sc_portnum, 0, 0, 0); if (disable) sc->sc_enabled = 0; } else if (sc->wi_gone && disable) /* gone --> not enabled */ sc->sc_enabled = 0; callout_stop(&sc->sc_watchdog); sc->sc_tx_timer = 0; sc->sc_false_syns = 0; ifp->if_flags &= ~IFF_RUNNING; ifq_clr_oactive(&ifp->if_snd); } void wi_stop(struct wi_softc *sc, int disable) { wi_stop_locked(sc, disable); } static void wi_set_channel(struct ieee80211com *ic) { struct ifnet *ifp = ic->ic_ifp; struct wi_softc *sc = ifp->if_softc; DPRINTF(("%s: channel %d, %sscanning\n", __func__, ieee80211_chan2ieee(ic, ic->ic_curchan), ic->ic_flags & IEEE80211_F_SCAN ? "" : "!")); wi_write_val(sc, WI_RID_OWN_CHNL, ieee80211_chan2ieee(ic, ic->ic_curchan)); } static void wi_scan_start(struct ieee80211com *ic) { struct ifnet *ifp = ic->ic_ifp; struct wi_softc *sc = ifp->if_softc; struct ieee80211_scan_state *ss = ic->ic_scan; DPRINTF(("%s\n", __func__)); /* * Switch device to monitor mode. */ wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_monitor_port); if (sc->sc_firmware_type == WI_INTERSIL) { wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); } /* force full dwell time to compensate for firmware overhead */ ss->ss_mindwell = ss->ss_maxdwell = msecs_to_ticks(400); } static void wi_scan_end(struct ieee80211com *ic) { struct ifnet *ifp = ic->ic_ifp; struct wi_softc *sc = ifp->if_softc; DPRINTF(("%s: restore port type %d\n", __func__, sc->sc_porttype)); wi_write_val(sc, WI_RID_PORTTYPE, sc->sc_porttype); if (sc->sc_firmware_type == WI_INTERSIL) { wi_cmd(sc, WI_CMD_DISABLE | WI_PORT0, 0, 0, 0); wi_cmd(sc, WI_CMD_ENABLE | WI_PORT0, 0, 0, 0); } } static void wi_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype, int rssi, int nf) { struct ieee80211vap *vap = ni->ni_vap; switch (subtype) { case IEEE80211_FC0_SUBTYPE_AUTH: case IEEE80211_FC0_SUBTYPE_ASSOC_RESP: case IEEE80211_FC0_SUBTYPE_REASSOC_RESP: /* NB: filter frames that trigger state changes */ return; } WI_VAP(vap)->wv_recv_mgmt(ni, m, subtype, rssi, nf); } static int wi_newstate_sta(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) { struct ieee80211com *ic = vap->iv_ic; struct ifnet *ifp = ic->ic_ifp; struct ieee80211_node *bss; struct wi_softc *sc = ifp->if_softc; DPRINTF(("%s: %s -> %s\n", __func__, ieee80211_state_name[vap->iv_state], ieee80211_state_name[nstate])); if (nstate == IEEE80211_S_AUTH) { wi_setup_locked(sc, WI_PORTTYPE_BSS, 3, vap->iv_myaddr); if (vap->iv_flags & IEEE80211_F_PMGTON) { wi_write_val(sc, WI_RID_MAX_SLEEP, ic->ic_lintval); wi_write_val(sc, WI_RID_PM_ENABLED, 1); } wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) wi_write_val(sc, WI_RID_FRAG_THRESH, vap->iv_fragthreshold); wi_write_txrate(sc, vap); bss = vap->iv_bss; wi_write_ssid(sc, WI_RID_DESIRED_SSID, bss->ni_essid, bss->ni_esslen); wi_write_val(sc, WI_RID_OWN_CHNL, ieee80211_chan2ieee(ic, bss->ni_chan)); /* Configure WEP. */ if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) wi_write_wep(sc, vap); else sc->sc_encryption = 0; if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && (vap->iv_flags & IEEE80211_F_WPA)) { wi_write_val(sc, WI_RID_WPA_HANDLING, 1); if (vap->iv_appie_wpa != NULL) wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa); } wi_enable(sc); /* enable port */ /* Lucent firmware does not support the JOIN RID. */ if (sc->sc_firmware_type == WI_INTERSIL) { struct wi_joinreq join; memset(&join, 0, sizeof(join)); IEEE80211_ADDR_COPY(&join.wi_bssid, bss->ni_bssid); join.wi_chan = htole16( ieee80211_chan2ieee(ic, bss->ni_chan)); wi_write_rid(sc, WI_RID_JOIN_REQ, &join, sizeof(join)); } /* * NB: don't go through 802.11 layer, it'll send auth frame; * instead we drive the state machine from the link status * notification we get on association. */ vap->iv_state = nstate; return (0); } return WI_VAP(vap)->wv_newstate(vap, nstate, arg); } static int wi_newstate_hostap(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) { struct ieee80211com *ic = vap->iv_ic; struct ifnet *ifp = ic->ic_ifp; struct ieee80211_node *bss; struct wi_softc *sc = ifp->if_softc; int error; DPRINTF(("%s: %s -> %s\n", __func__, ieee80211_state_name[vap->iv_state], ieee80211_state_name[nstate])); error = WI_VAP(vap)->wv_newstate(vap, nstate, arg); if (error == 0 && nstate == IEEE80211_S_RUN) { wi_setup_locked(sc, WI_PORTTYPE_HOSTAP, 0, vap->iv_myaddr); bss = vap->iv_bss; wi_write_ssid(sc, WI_RID_OWN_SSID, bss->ni_essid, bss->ni_esslen); wi_write_val(sc, WI_RID_OWN_CHNL, ieee80211_chan2ieee(ic, bss->ni_chan)); wi_write_val(sc, WI_RID_BASIC_RATE, 0x3); wi_write_val(sc, WI_RID_SUPPORT_RATE, 0xf); wi_write_txrate(sc, vap); wi_write_val(sc, WI_RID_OWN_BEACON_INT, bss->ni_intval); wi_write_val(sc, WI_RID_DTIM_PERIOD, vap->iv_dtim_period); wi_write_val(sc, WI_RID_RTS_THRESH, vap->iv_rtsthreshold); if (sc->sc_flags & WI_FLAGS_HAS_FRAGTHR) wi_write_val(sc, WI_RID_FRAG_THRESH, vap->iv_fragthreshold); if ((sc->sc_flags & WI_FLAGS_HAS_ENHSECURITY) && (vap->iv_flags & IEEE80211_F_HIDESSID)) { /* * bit 0 means hide SSID in beacons, * bit 1 means don't respond to bcast probe req */ wi_write_val(sc, WI_RID_ENH_SECURITY, 0x3); } if ((sc->sc_flags & WI_FLAGS_HAS_WPASUPPORT) && (vap->iv_flags & IEEE80211_F_WPA) && vap->iv_appie_wpa != NULL) wi_write_appie(sc, WI_RID_WPA_DATA, vap->iv_appie_wpa); wi_write_val(sc, WI_RID_PROMISC, 0); /* Configure WEP. */ if (ic->ic_cryptocaps & IEEE80211_CRYPTO_WEP) wi_write_wep(sc, vap); else sc->sc_encryption = 0; wi_enable(sc); /* enable port */ } return error; } static void wi_start_locked(struct ifnet *ifp) { struct wi_softc *sc = ifp->if_softc; struct ieee80211_node *ni; struct ieee80211_frame *wh; struct mbuf *m0; struct ieee80211_key *k; struct wi_frame frmhdr; const struct llc *llc; int cur; if (sc->wi_gone) return; memset(&frmhdr, 0, sizeof(frmhdr)); cur = sc->sc_txnext; for (;;) { IF_DEQUEUE(&ifp->if_snd, m0); if (m0 == NULL) break; if (sc->sc_txd[cur].d_len != 0) { IF_PREPEND(&ifp->if_snd, m0); ifq_set_oactive(&ifp->if_snd); break; } ni = (struct ieee80211_node *) m0->m_pkthdr.rcvif; /* reconstruct 802.3 header */ wh = mtod(m0, struct ieee80211_frame *); switch (wh->i_fc[1]) { case IEEE80211_FC1_DIR_TODS: IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, wh->i_addr2); IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, wh->i_addr3); break; case IEEE80211_FC1_DIR_NODS: IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, wh->i_addr2); IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, wh->i_addr1); break; case IEEE80211_FC1_DIR_FROMDS: IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_shost, wh->i_addr3); IEEE80211_ADDR_COPY(frmhdr.wi_ehdr.ether_dhost, wh->i_addr1); break; } llc = (const struct llc *)( mtod(m0, const uint8_t *) + ieee80211_hdrsize(wh)); frmhdr.wi_ehdr.ether_type = llc->llc_snap.ether_type; frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); if (wh->i_fc[1] & IEEE80211_FC1_WEP) { k = ieee80211_crypto_encap(ni, m0); if (k == NULL) { ieee80211_free_node(ni); m_freem(m0); continue; } frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); } if (ieee80211_radiotap_active_vap(ni->ni_vap)) { sc->sc_tx_th.wt_rate = ni->ni_txrate; ieee80211_radiotap_tx(ni->ni_vap, m0); } m_copydata(m0, 0, sizeof(struct ieee80211_frame), (caddr_t)&frmhdr.wi_whdr); m_adj(m0, sizeof(struct ieee80211_frame)); frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); ieee80211_free_node(ni); if (wi_start_tx(ifp, &frmhdr, m0)) continue; sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; ifp->if_opackets++; } } static void wi_start(struct ifnet *ifp) { wi_start_locked(ifp); } static int wi_start_tx(struct ifnet *ifp, struct wi_frame *frmhdr, struct mbuf *m0) { struct wi_softc *sc = ifp->if_softc; int cur = sc->sc_txnext; int fid, off, error; fid = sc->sc_txd[cur].d_fid; off = sizeof(*frmhdr); error = wi_write_bap(sc, fid, 0, frmhdr, sizeof(*frmhdr)) != 0 || wi_mwrite_bap(sc, fid, off, m0, m0->m_pkthdr.len) != 0; m_freem(m0); if (error) { ifp->if_oerrors++; return -1; } sc->sc_txd[cur].d_len = off; if (sc->sc_txcur == cur) { if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, fid, 0, 0)) { if_printf(ifp, "xmit failed\n"); sc->sc_txd[cur].d_len = 0; return -1; } sc->sc_tx_timer = 5; } return 0; } static int wi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m0, const struct ieee80211_bpf_params *params) { struct ieee80211com *ic = ni->ni_ic; struct ifnet *ifp = ic->ic_ifp; struct ieee80211vap *vap = ni->ni_vap; struct wi_softc *sc = ifp->if_softc; struct ieee80211_key *k; struct ieee80211_frame *wh; struct wi_frame frmhdr; int cur; int rc = 0; if (sc->wi_gone) { rc = ENETDOWN; goto out; } memset(&frmhdr, 0, sizeof(frmhdr)); cur = sc->sc_txnext; if (sc->sc_txd[cur].d_len != 0) { ifq_set_oactive(&ifp->if_snd); rc = ENOBUFS; goto out; } m0->m_pkthdr.rcvif = NULL; m_copydata(m0, 4, ETHER_ADDR_LEN * 2, (caddr_t)&frmhdr.wi_ehdr); frmhdr.wi_ehdr.ether_type = 0; wh = mtod(m0, struct ieee80211_frame *); frmhdr.wi_tx_ctl = htole16(WI_ENC_TX_802_11|WI_TXCNTL_TX_EX); if (params && (params->ibp_flags & IEEE80211_BPF_NOACK)) frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_ALTRTRY); if ((wh->i_fc[1] & IEEE80211_FC1_WEP) && (!params || (params && (params->ibp_flags & IEEE80211_BPF_CRYPTO)))) { k = ieee80211_crypto_encap(ni, m0); if (k == NULL) { rc = ENOMEM; goto out; } frmhdr.wi_tx_ctl |= htole16(WI_TXCNTL_NOCRYPT); } if (ieee80211_radiotap_active_vap(vap)) { sc->sc_tx_th.wt_rate = ni->ni_txrate; ieee80211_radiotap_tx(vap, m0); } m_copydata(m0, 0, sizeof(struct ieee80211_frame), (caddr_t)&frmhdr.wi_whdr); m_adj(m0, sizeof(struct ieee80211_frame)); frmhdr.wi_dat_len = htole16(m0->m_pkthdr.len); if (wi_start_tx(ifp, &frmhdr, m0) < 0) { m0 = NULL; rc = EIO; goto out; } m0 = NULL; sc->sc_txnext = cur = (cur + 1) % sc->sc_ntxbuf; out: if (m0 != NULL) m_freem(m0); ieee80211_free_node(ni); return rc; } static int wi_reset(struct wi_softc *sc) { #define WI_INIT_TRIES 3 int i, error = 0; for (i = 0; i < WI_INIT_TRIES; i++) { error = wi_cmd(sc, WI_CMD_INI, 0, 0, 0); if (error == 0) break; DELAY(WI_DELAY * 1000); } sc->sc_reset = 1; if (i == WI_INIT_TRIES) { if_printf(sc->sc_ifp, "reset failed\n"); return error; } CSR_WRITE_2(sc, WI_INT_EN, 0); CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF); /* Calibrate timer. */ wi_write_val(sc, WI_RID_TICK_TIME, 8); return 0; #undef WI_INIT_TRIES } static void wi_watchdog_callout(void *arg) { struct wi_softc *sc = arg; struct ifnet *ifp = sc->sc_ifp; if (!sc->sc_enabled) return; if (sc->sc_tx_timer && --sc->sc_tx_timer == 0) { if_printf(ifp, "device timeout\n"); ifp->if_oerrors++; wi_init_locked(ifp->if_softc); return; } callout_reset(&sc->sc_watchdog, hz, wi_watchdog_callout, sc); } static int wi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred) { struct wi_softc *sc = ifp->if_softc; struct ieee80211com *ic = ifp->if_l2com; struct ifreq *ifr = (struct ifreq *) data; int error = 0, startall = 0; switch (cmd) { case SIOCSIFFLAGS: /* * Can't do promisc and hostap at the same time. If all that's * changing is the promisc flag, try to short-circuit a call to * wi_init() by just setting PROMISC in the hardware. */ if (ifp->if_flags & IFF_UP) { if (ic->ic_opmode != IEEE80211_M_HOSTAP && ifp->if_flags & IFF_RUNNING) { if ((ifp->if_flags ^ sc->sc_if_flags) & IFF_PROMISC) { wi_write_val(sc, WI_RID_PROMISC, (ifp->if_flags & IFF_PROMISC) != 0); } else { wi_init_locked(sc); startall = 1; } } else { wi_init_locked(sc); startall = 1; } } else { if (ifp->if_flags & IFF_RUNNING) wi_stop_locked(sc, 1); sc->wi_gone = 0; } sc->sc_if_flags = ifp->if_flags; if (startall) ieee80211_start_all(ic); break; case SIOCGIFMEDIA: error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); break; case SIOCGIFADDR: error = ether_ioctl(ifp, cmd, data); break; default: error = EINVAL; break; } return error; } static void wi_media_status(struct ifnet *ifp, struct ifmediareq *imr) { struct ieee80211vap *vap = ifp->if_softc; struct ieee80211com *ic = vap->iv_ic; struct wi_softc *sc = ic->ic_ifp->if_softc; u_int16_t val; int rate, len; len = sizeof(val); if (sc->sc_enabled && wi_read_rid(sc, WI_RID_CUR_TX_RATE, &val, &len) == 0 && len == sizeof(val)) { /* convert to 802.11 rate */ val = le16toh(val); rate = val * 2; if (sc->sc_firmware_type == WI_LUCENT) { if (rate == 10) rate = 11; /* 5.5Mbps */ } else { if (rate == 4*2) rate = 11; /* 5.5Mbps */ else if (rate == 8*2) rate = 22; /* 11Mbps */ } vap->iv_bss->ni_txrate = rate; } ieee80211_media_status(ifp, imr); } static void wi_sync_bssid(struct wi_softc *sc, u_int8_t new_bssid[IEEE80211_ADDR_LEN]) { struct ifnet *ifp = sc->sc_ifp; struct ieee80211com *ic = ifp->if_l2com; struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); struct ieee80211_node *ni = vap->iv_bss; if (IEEE80211_ADDR_EQ(new_bssid, ni->ni_bssid)) return; DPRINTF(("wi_sync_bssid: bssid %6D -> ", ni->ni_bssid, ":")); DPRINTF(("%6D ?\n", new_bssid, ":")); /* In promiscuous mode, the BSSID field is not a reliable * indicator of the firmware's BSSID. Damp spurious * change-of-BSSID indications. */ if ((ifp->if_flags & IFF_PROMISC) != 0 && !ppsratecheck(&sc->sc_last_syn, &sc->sc_false_syns, WI_MAX_FALSE_SYNS)) return; sc->sc_false_syns = MAX(0, sc->sc_false_syns - 1); #if 0 /* * XXX hack; we should create a new node with the new bssid * and replace the existing ic_bss with it but since we don't * process management frames to collect state we cheat by * reusing the existing node as we know wi_newstate will be * called and it will overwrite the node state. */ ieee80211_sta_join(ic, ieee80211_ref_node(ni)); #endif } static __noinline void wi_rx_intr(struct wi_softc *sc) { struct ifnet *ifp = sc->sc_ifp; struct ieee80211com *ic = ifp->if_l2com; struct wi_frame frmhdr; struct mbuf *m; struct ieee80211_frame *wh; struct ieee80211_node *ni; int fid, len, off; u_int8_t dir; u_int16_t status; int8_t rssi, nf; fid = CSR_READ_2(sc, WI_RX_FID); /* First read in the frame header */ if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr))) { CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); ifp->if_ierrors++; DPRINTF(("wi_rx_intr: read fid %x failed\n", fid)); return; } /* * Drop undecryptable or packets with receive errors here */ status = le16toh(frmhdr.wi_status); if (status & WI_STAT_ERRSTAT) { CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); ifp->if_ierrors++; DPRINTF(("wi_rx_intr: fid %x error status %x\n", fid, status)); return; } len = le16toh(frmhdr.wi_dat_len); off = ALIGN(sizeof(struct ieee80211_frame)); /* * Sometimes the PRISM2.x returns bogusly large frames. Except * in monitor mode, just throw them away. */ if (off + len > MCLBYTES) { if (ic->ic_opmode != IEEE80211_M_MONITOR) { CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); ifp->if_ierrors++; DPRINTF(("wi_rx_intr: oversized packet\n")); return; } else len = 0; } if (off + len > MHLEN) m = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR); else m = m_gethdr(MB_DONTWAIT, MT_DATA); if (m == NULL) { CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); ifp->if_ierrors++; DPRINTF(("wi_rx_intr: MGET failed\n")); return; } m->m_data += off - sizeof(struct ieee80211_frame); memcpy(m->m_data, &frmhdr.wi_whdr, sizeof(struct ieee80211_frame)); wi_read_bap(sc, fid, sizeof(frmhdr), m->m_data + sizeof(struct ieee80211_frame), len); m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + len; m->m_pkthdr.rcvif = ifp; CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_RX); rssi = frmhdr.wi_rx_signal; nf = frmhdr.wi_rx_silence; if (ieee80211_radiotap_active(ic)) { struct wi_rx_radiotap_header *tap = &sc->sc_rx_th; uint32_t rstamp; rstamp = (le16toh(frmhdr.wi_rx_tstamp0) << 16) | le16toh(frmhdr.wi_rx_tstamp1); tap->wr_tsf = htole64((uint64_t)rstamp); /* XXX replace divide by table */ tap->wr_rate = frmhdr.wi_rx_rate / 5; tap->wr_flags = 0; if (frmhdr.wi_status & WI_STAT_PCF) tap->wr_flags |= IEEE80211_RADIOTAP_F_CFP; if (m->m_flags & M_WEP) tap->wr_flags |= IEEE80211_RADIOTAP_F_WEP; tap->wr_antsignal = rssi; tap->wr_antnoise = nf; } /* synchronize driver's BSSID with firmware's BSSID */ wh = mtod(m, struct ieee80211_frame *); dir = wh->i_fc[1] & IEEE80211_FC1_DIR_MASK; if (ic->ic_opmode == IEEE80211_M_IBSS && dir == IEEE80211_FC1_DIR_NODS) wi_sync_bssid(sc, wh->i_addr3); ni = ieee80211_find_rxnode(ic, mtod(m, struct ieee80211_frame_min *)); if (ni != NULL) { (void) ieee80211_input(ni, m, rssi, nf); ieee80211_free_node(ni); } else (void) ieee80211_input_all(ic, m, rssi, nf); } static __noinline void wi_tx_ex_intr(struct wi_softc *sc) { struct ifnet *ifp = sc->sc_ifp; struct wi_frame frmhdr; int fid; fid = CSR_READ_2(sc, WI_TX_CMP_FID); /* Read in the frame header */ if (wi_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) == 0) { u_int16_t status = le16toh(frmhdr.wi_status); /* * Spontaneous station disconnects appear as xmit * errors. Don't announce them and/or count them * as an output error. */ if ((status & WI_TXSTAT_DISCONNECT) == 0) { if (ppsratecheck(&lasttxerror, &curtxeps, wi_txerate)) { if_printf(ifp, "tx failed"); if (status & WI_TXSTAT_RET_ERR) kprintf(", retry limit exceeded"); if (status & WI_TXSTAT_AGED_ERR) kprintf(", max transmit lifetime exceeded"); if (status & WI_TXSTAT_DISCONNECT) kprintf(", port disconnected"); if (status & WI_TXSTAT_FORM_ERR) kprintf(", invalid format (data len %u src %6D)", le16toh(frmhdr.wi_dat_len), frmhdr.wi_ehdr.ether_shost, ":"); if (status & ~0xf) kprintf(", status=0x%x", status); kprintf("\n"); } ifp->if_oerrors++; } else { DPRINTF(("port disconnected\n")); ifp->if_collisions++; /* XXX */ } } else DPRINTF(("wi_tx_ex_intr: read fid %x failed\n", fid)); CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_TX_EXC); } static __noinline void wi_tx_intr(struct wi_softc *sc) { struct ifnet *ifp = sc->sc_ifp; int fid, cur; if (sc->wi_gone) return; fid = CSR_READ_2(sc, WI_ALLOC_FID); CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); cur = sc->sc_txcur; if (sc->sc_txd[cur].d_fid != fid) { if_printf(ifp, "bad alloc %x != %x, cur %d nxt %d\n", fid, sc->sc_txd[cur].d_fid, cur, sc->sc_txnext); return; } sc->sc_tx_timer = 0; sc->sc_txd[cur].d_len = 0; sc->sc_txcur = cur = (cur + 1) % sc->sc_ntxbuf; if (sc->sc_txd[cur].d_len == 0) ifq_clr_oactive(&ifp->if_snd); else { if (wi_cmd(sc, WI_CMD_TX | WI_RECLAIM, sc->sc_txd[cur].d_fid, 0, 0)) { if_printf(ifp, "xmit failed\n"); sc->sc_txd[cur].d_len = 0; } else { sc->sc_tx_timer = 5; } } } static __noinline void wi_info_intr(struct wi_softc *sc) { struct ifnet *ifp = sc->sc_ifp; struct ieee80211com *ic = ifp->if_l2com; struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); int i, fid, len, off; u_int16_t ltbuf[2]; u_int16_t stat; u_int32_t *ptr; fid = CSR_READ_2(sc, WI_INFO_FID); wi_read_bap(sc, fid, 0, ltbuf, sizeof(ltbuf)); switch (le16toh(ltbuf[1])) { case WI_INFO_LINK_STAT: wi_read_bap(sc, fid, sizeof(ltbuf), &stat, sizeof(stat)); DPRINTF(("wi_info_intr: LINK_STAT 0x%x\n", le16toh(stat))); switch (le16toh(stat)) { case WI_INFO_LINK_STAT_CONNECTED: if (vap->iv_state == IEEE80211_S_RUN && vap->iv_opmode != IEEE80211_M_IBSS) break; /* fall thru... */ case WI_INFO_LINK_STAT_AP_CHG: vap->iv_bss->ni_associd = 1 | 0xc000; /* NB: anything will do */ ieee80211_new_state(vap, IEEE80211_S_RUN, 0); break; case WI_INFO_LINK_STAT_AP_INR: break; case WI_INFO_LINK_STAT_DISCONNECTED: /* we dropped off the net; e.g. due to deauth/disassoc */ vap->iv_bss->ni_associd = 0; vap->iv_stats.is_rx_deauth++; ieee80211_new_state(vap, IEEE80211_S_SCAN, 0); break; case WI_INFO_LINK_STAT_AP_OOR: /* XXX does this need to be per-vap? */ ieee80211_beacon_miss(ic); break; case WI_INFO_LINK_STAT_ASSOC_FAILED: if (vap->iv_opmode == IEEE80211_M_STA) ieee80211_new_state(vap, IEEE80211_S_SCAN, IEEE80211_SCAN_FAIL_TIMEOUT); break; } break; case WI_INFO_COUNTERS: /* some card versions have a larger stats structure */ len = min(le16toh(ltbuf[0]) - 1, sizeof(sc->sc_stats) / 4); ptr = (u_int32_t *)&sc->sc_stats; off = sizeof(ltbuf); for (i = 0; i < len; i++, off += 2, ptr++) { wi_read_bap(sc, fid, off, &stat, sizeof(stat)); #ifdef WI_HERMES_STATS_WAR if (stat & 0xf000) stat = ~stat; #endif *ptr += stat; } ifp->if_collisions = sc->sc_stats.wi_tx_single_retries + sc->sc_stats.wi_tx_multi_retries + sc->sc_stats.wi_tx_retry_limit; break; default: DPRINTF(("wi_info_intr: got fid %x type %x len %d\n", fid, le16toh(ltbuf[1]), le16toh(ltbuf[0]))); break; } CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_INFO); } static int wi_write_multi(struct wi_softc *sc) { struct ifnet *ifp = sc->sc_ifp; int n; struct ifmultiaddr *ifma; struct wi_mcast mlist; if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { allmulti: memset(&mlist, 0, sizeof(mlist)); return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, sizeof(mlist)); } n = 0; #ifdef __FreeBSD__ if_maddr_rlock(ifp); #endif TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { if (ifma->ifma_addr->sa_family != AF_LINK) continue; if (n >= 16) goto allmulti; IEEE80211_ADDR_COPY(&mlist.wi_mcast[n], (LLADDR((struct sockaddr_dl *)ifma->ifma_addr))); n++; } #ifdef __FreeBSD__ if_maddr_runlock(ifp); #endif return wi_write_rid(sc, WI_RID_MCAST_LIST, &mlist, IEEE80211_ADDR_LEN * n); } static void wi_update_mcast(struct ifnet *ifp) { wi_write_multi(ifp->if_softc); } static void wi_update_promisc(struct ifnet *ifp) { struct wi_softc *sc = ifp->if_softc; struct ieee80211com *ic = ifp->if_l2com; /* XXX handle WEP special case handling? */ wi_write_val(sc, WI_RID_PROMISC, (ic->ic_opmode == IEEE80211_M_MONITOR || (ifp->if_flags & IFF_PROMISC))); } static void wi_read_nicid(struct wi_softc *sc) { struct wi_card_ident *id; char *p; int len; u_int16_t ver[4]; /* getting chip identity */ memset(ver, 0, sizeof(ver)); len = sizeof(ver); wi_read_rid(sc, WI_RID_CARD_ID, ver, &len); sc->sc_firmware_type = WI_NOTYPE; sc->sc_nic_id = le16toh(ver[0]); for (id = wi_card_ident; id->card_name != NULL; id++) { if (sc->sc_nic_id == id->card_id) { sc->sc_nic_name = id->card_name; sc->sc_firmware_type = id->firm_type; break; } } if (sc->sc_firmware_type == WI_NOTYPE) { if (sc->sc_nic_id & 0x8000) { sc->sc_firmware_type = WI_INTERSIL; sc->sc_nic_name = "Unknown Prism chip"; } else { sc->sc_firmware_type = WI_LUCENT; sc->sc_nic_name = "Unknown Lucent chip"; } } if (bootverbose) device_printf(sc->sc_dev, "using %s\n", sc->sc_nic_name); /* get primary firmware version (Only Prism chips) */ if (sc->sc_firmware_type != WI_LUCENT) { memset(ver, 0, sizeof(ver)); len = sizeof(ver); wi_read_rid(sc, WI_RID_PRI_IDENTITY, ver, &len); sc->sc_pri_firmware_ver = le16toh(ver[2]) * 10000 + le16toh(ver[3]) * 100 + le16toh(ver[1]); } /* get station firmware version */ memset(ver, 0, sizeof(ver)); len = sizeof(ver); wi_read_rid(sc, WI_RID_STA_IDENTITY, ver, &len); sc->sc_sta_firmware_ver = le16toh(ver[2]) * 10000 + le16toh(ver[3]) * 100 + le16toh(ver[1]); if (sc->sc_firmware_type == WI_INTERSIL && (sc->sc_sta_firmware_ver == 10102 || sc->sc_sta_firmware_ver == 20102)) { char ident[12]; memset(ident, 0, sizeof(ident)); len = sizeof(ident); /* value should be the format like "V2.00-11" */ if (wi_read_rid(sc, WI_RID_SYMBOL_IDENTITY, ident, &len) == 0 && *(p = (char *)ident) >= 'A' && p[2] == '.' && p[5] == '-' && p[8] == '\0') { sc->sc_firmware_type = WI_SYMBOL; sc->sc_sta_firmware_ver = (p[1] - '0') * 10000 + (p[3] - '0') * 1000 + (p[4] - '0') * 100 + (p[6] - '0') * 10 + (p[7] - '0'); } } if (bootverbose) { device_printf(sc->sc_dev, "%s Firmware: ", wi_firmware_names[sc->sc_firmware_type]); if (sc->sc_firmware_type != WI_LUCENT) /* XXX */ kprintf("Primary (%u.%u.%u), ", sc->sc_pri_firmware_ver / 10000, (sc->sc_pri_firmware_ver % 10000) / 100, sc->sc_pri_firmware_ver % 100); kprintf("Station (%u.%u.%u)\n", sc->sc_sta_firmware_ver / 10000, (sc->sc_sta_firmware_ver % 10000) / 100, sc->sc_sta_firmware_ver % 100); } } static int wi_write_ssid(struct wi_softc *sc, int rid, u_int8_t *buf, int buflen) { struct wi_ssid ssid; if (buflen > IEEE80211_NWID_LEN) return ENOBUFS; memset(&ssid, 0, sizeof(ssid)); ssid.wi_len = htole16(buflen); memcpy(ssid.wi_ssid, buf, buflen); return wi_write_rid(sc, rid, &ssid, sizeof(ssid)); } static int wi_write_txrate(struct wi_softc *sc, struct ieee80211vap *vap) { static const uint16_t lucent_rates[12] = { [ 0] = 3, /* auto */ [ 1] = 1, /* 1Mb/s */ [ 2] = 2, /* 2Mb/s */ [ 5] = 4, /* 5.5Mb/s */ [11] = 5 /* 11Mb/s */ }; static const uint16_t intersil_rates[12] = { [ 0] = 0xf, /* auto */ [ 1] = 0, /* 1Mb/s */ [ 2] = 1, /* 2Mb/s */ [ 5] = 2, /* 5.5Mb/s */ [11] = 3, /* 11Mb/s */ }; const uint16_t *rates = sc->sc_firmware_type == WI_LUCENT ? lucent_rates : intersil_rates; struct ieee80211com *ic = vap->iv_ic; const struct ieee80211_txparam *tp; tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; return wi_write_val(sc, WI_RID_TX_RATE, (tp->ucastrate == IEEE80211_FIXED_RATE_NONE ? rates[0] : rates[tp->ucastrate / 2])); } static int wi_write_wep(struct wi_softc *sc, struct ieee80211vap *vap) { int error = 0; int i, keylen; u_int16_t val; struct wi_key wkey[IEEE80211_WEP_NKID]; switch (sc->sc_firmware_type) { case WI_LUCENT: val = (vap->iv_flags & IEEE80211_F_PRIVACY) ? 1 : 0; error = wi_write_val(sc, WI_RID_ENCRYPTION, val); if (error) break; if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0) break; error = wi_write_val(sc, WI_RID_TX_CRYPT_KEY, vap->iv_def_txkey); if (error) break; memset(wkey, 0, sizeof(wkey)); for (i = 0; i < IEEE80211_WEP_NKID; i++) { keylen = vap->iv_nw_keys[i].wk_keylen; wkey[i].wi_keylen = htole16(keylen); memcpy(wkey[i].wi_keydat, vap->iv_nw_keys[i].wk_key, keylen); } error = wi_write_rid(sc, WI_RID_DEFLT_CRYPT_KEYS, wkey, sizeof(wkey)); sc->sc_encryption = 0; break; case WI_INTERSIL: val = HOST_ENCRYPT | HOST_DECRYPT; if (vap->iv_flags & IEEE80211_F_PRIVACY) { /* * ONLY HWB3163 EVAL-CARD Firmware version * less than 0.8 variant2 * * If promiscuous mode disable, Prism2 chip * does not work with WEP . * It is under investigation for details. * (ichiro@netbsd.org) */ if (sc->sc_sta_firmware_ver < 802 ) { /* firm ver < 0.8 variant 2 */ wi_write_val(sc, WI_RID_PROMISC, 1); } wi_write_val(sc, WI_RID_CNFAUTHMODE, vap->iv_bss->ni_authmode); val |= PRIVACY_INVOKED; } else { wi_write_val(sc, WI_RID_CNFAUTHMODE, IEEE80211_AUTH_OPEN); } error = wi_write_val(sc, WI_RID_P2_ENCRYPTION, val); if (error) break; sc->sc_encryption = val; if ((val & PRIVACY_INVOKED) == 0) break; error = wi_write_val(sc, WI_RID_P2_TX_CRYPT_KEY, vap->iv_def_txkey); break; } return error; } static int wi_cmd(struct wi_softc *sc, int cmd, int val0, int val1, int val2) { int i, s = 0; if (sc->wi_gone) return (ENODEV); /* wait for the busy bit to clear */ for (i = sc->wi_cmd_count; i > 0; i--) { /* 500ms */ if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) break; DELAY(1*1000); /* 1ms */ } if (i == 0) { device_printf(sc->sc_dev, "%s: busy bit won't clear, cmd 0x%x\n", __func__, cmd); sc->wi_gone = 1; return(ETIMEDOUT); } CSR_WRITE_2(sc, WI_PARAM0, val0); CSR_WRITE_2(sc, WI_PARAM1, val1); CSR_WRITE_2(sc, WI_PARAM2, val2); CSR_WRITE_2(sc, WI_COMMAND, cmd); if (cmd == WI_CMD_INI) { /* XXX: should sleep here. */ DELAY(100*1000); /* 100ms delay for init */ } for (i = 0; i < WI_TIMEOUT; i++) { /* * Wait for 'command complete' bit to be * set in the event status register. */ s = CSR_READ_2(sc, WI_EVENT_STAT); if (s & WI_EV_CMD) { /* Ack the event and read result code. */ s = CSR_READ_2(sc, WI_STATUS); CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_CMD); if (s & WI_STAT_CMD_RESULT) { return(EIO); } break; } DELAY(WI_DELAY); } if (i == WI_TIMEOUT) { device_printf(sc->sc_dev, "%s: timeout on cmd 0x%04x; " "event status 0x%04x\n", __func__, cmd, s); if (s == 0xffff) sc->wi_gone = 1; return(ETIMEDOUT); } return (0); } static int wi_seek_bap(struct wi_softc *sc, int id, int off) { int i, status; CSR_WRITE_2(sc, WI_SEL0, id); CSR_WRITE_2(sc, WI_OFF0, off); for (i = 0; ; i++) { status = CSR_READ_2(sc, WI_OFF0); if ((status & WI_OFF_BUSY) == 0) break; if (i == WI_TIMEOUT) { device_printf(sc->sc_dev, "%s: timeout, id %x off %x\n", __func__, id, off); sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ if (status == 0xffff) sc->wi_gone = 1; return ETIMEDOUT; } DELAY(1); } if (status & WI_OFF_ERR) { device_printf(sc->sc_dev, "%s: error, id %x off %x\n", __func__, id, off); sc->sc_bap_off = WI_OFF_ERR; /* invalidate */ return EIO; } sc->sc_bap_id = id; sc->sc_bap_off = off; return 0; } static int wi_read_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) { u_int16_t *ptr; int i, error, cnt; if (buflen == 0) return 0; if (id != sc->sc_bap_id || off != sc->sc_bap_off) { if ((error = wi_seek_bap(sc, id, off)) != 0) return error; } cnt = (buflen + 1) / 2; ptr = (u_int16_t *)buf; for (i = 0; i < cnt; i++) *ptr++ = CSR_READ_2(sc, WI_DATA0); sc->sc_bap_off += cnt * 2; return 0; } static int wi_write_bap(struct wi_softc *sc, int id, int off, void *buf, int buflen) { u_int16_t *ptr; int i, error, cnt; if (buflen == 0) return 0; if (id != sc->sc_bap_id || off != sc->sc_bap_off) { if ((error = wi_seek_bap(sc, id, off)) != 0) return error; } cnt = (buflen + 1) / 2; ptr = (u_int16_t *)buf; for (i = 0; i < cnt; i++) CSR_WRITE_2(sc, WI_DATA0, ptr[i]); sc->sc_bap_off += cnt * 2; return 0; } static int wi_mwrite_bap(struct wi_softc *sc, int id, int off, struct mbuf *m0, int totlen) { int error, len; struct mbuf *m; for (m = m0; m != NULL && totlen > 0; m = m->m_next) { if (m->m_len == 0) continue; len = min(m->m_len, totlen); if (((u_long)m->m_data) % 2 != 0 || len % 2 != 0) { m_copydata(m, 0, totlen, (caddr_t)&sc->sc_txbuf); return wi_write_bap(sc, id, off, (caddr_t)&sc->sc_txbuf, totlen); } if ((error = wi_write_bap(sc, id, off, m->m_data, len)) != 0) return error; off += m->m_len; totlen -= len; } return 0; } static int wi_alloc_fid(struct wi_softc *sc, int len, int *idp) { int i; if (wi_cmd(sc, WI_CMD_ALLOC_MEM, len, 0, 0)) { device_printf(sc->sc_dev, "%s: failed to allocate %d bytes on NIC\n", __func__, len); return ENOMEM; } for (i = 0; i < WI_TIMEOUT; i++) { if (CSR_READ_2(sc, WI_EVENT_STAT) & WI_EV_ALLOC) break; DELAY(1); } if (i == WI_TIMEOUT) { device_printf(sc->sc_dev, "%s: timeout in alloc\n", __func__); return ETIMEDOUT; } *idp = CSR_READ_2(sc, WI_ALLOC_FID); CSR_WRITE_2(sc, WI_EVENT_ACK, WI_EV_ALLOC); return 0; } static int wi_read_rid(struct wi_softc *sc, int rid, void *buf, int *buflenp) { int error, len; u_int16_t ltbuf[2]; /* Tell the NIC to enter record read mode. */ error = wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_READ, rid, 0, 0); if (error) return error; error = wi_read_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); if (error) return error; if (le16toh(ltbuf[1]) != rid) { device_printf(sc->sc_dev, "record read mismatch, rid=%x, got=%x\n", rid, le16toh(ltbuf[1])); return EIO; } len = (le16toh(ltbuf[0]) - 1) * 2; /* already got rid */ if (*buflenp < len) { device_printf(sc->sc_dev, "record buffer is too small, " "rid=%x, size=%d, len=%d\n", rid, *buflenp, len); return ENOSPC; } *buflenp = len; return wi_read_bap(sc, rid, sizeof(ltbuf), buf, len); } static int wi_write_rid(struct wi_softc *sc, int rid, void *buf, int buflen) { int error; u_int16_t ltbuf[2]; ltbuf[0] = htole16((buflen + 1) / 2 + 1); /* includes rid */ ltbuf[1] = htole16(rid); error = wi_write_bap(sc, rid, 0, ltbuf, sizeof(ltbuf)); if (error) { device_printf(sc->sc_dev, "%s: bap0 write failure, rid 0x%x\n", __func__, rid); return error; } error = wi_write_bap(sc, rid, sizeof(ltbuf), buf, buflen); if (error) { device_printf(sc->sc_dev, "%s: bap1 write failure, rid 0x%x\n", __func__, rid); return error; } return wi_cmd(sc, WI_CMD_ACCESS | WI_ACCESS_WRITE, rid, 0, 0); } static int wi_write_appie(struct wi_softc *sc, int rid, const struct ieee80211_appie *ie) { /* NB: 42 bytes is probably ok to have on the stack */ char buf[sizeof(uint16_t) + 40]; if (ie->ie_len > 40) return EINVAL; /* NB: firmware requires 16-bit ie length before ie data */ *(uint16_t *) buf = htole16(ie->ie_len); memcpy(buf + sizeof(uint16_t), ie->ie_data, ie->ie_len); return wi_write_rid(sc, rid, buf, ie->ie_len + sizeof(uint16_t)); } int wi_alloc(device_t dev, int rid) { struct wi_softc *sc = device_get_softc(dev); if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) { sc->iobase_rid = rid; sc->iobase = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->iobase_rid, 0, ~0, (1 << 6), rman_make_alignment_flags(1 << 6) | RF_ACTIVE); if (sc->iobase == NULL) { device_printf(dev, "No I/O space?!\n"); return ENXIO; } sc->wi_io_addr = rman_get_start(sc->iobase); sc->wi_btag = rman_get_bustag(sc->iobase); sc->wi_bhandle = rman_get_bushandle(sc->iobase); } else { sc->mem_rid = rid; sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid, RF_ACTIVE); if (sc->mem == NULL) { device_printf(dev, "No Mem space on prism2.5?\n"); return ENXIO; } sc->wi_btag = rman_get_bustag(sc->mem); sc->wi_bhandle = rman_get_bushandle(sc->mem); } sc->irq_rid = 0; sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, RF_ACTIVE | ((sc->wi_bus_type == WI_BUS_PCCARD) ? 0 : RF_SHAREABLE)); if (sc->irq == NULL) { wi_free(dev); device_printf(dev, "No irq?!\n"); return ENXIO; } sc->sc_dev = dev; sc->sc_unit = device_get_unit(dev); return 0; } void wi_free(device_t dev) { struct wi_softc *sc = device_get_softc(dev); if (sc->iobase != NULL) { bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase); sc->iobase = NULL; } if (sc->irq != NULL) { bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); sc->irq = NULL; } if (sc->mem != NULL) { bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); sc->mem = NULL; } }