#include /* $OpenBSD: if_urtwn.c,v 1.16 2011/02/10 17:26:40 jakemsr Exp $ */ /*- * Copyright (c) 2010 Damien Bergamini * Copyright (c) 2014 Kevin Lo * Copyright (c) 2015-2016 Andriy Voskoboinyk * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include __FBSDID("$FreeBSD$"); /* * Driver for Realtek RTL8188CE-VAU/RTL8188CUS/RTL8188EU/RTL8188RU/RTL8192CU/RTL8812AU/RTL8821AU. */ #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 #include #include #include #include #include #include #include #include #include #include #include static void rtwn_radiotap_attach(struct rtwn_softc *); static void rtwn_vap_decrement_counters(struct rtwn_softc *, enum ieee80211_opmode, int); static void rtwn_set_ic_opmode(struct rtwn_softc *); static struct ieee80211vap *rtwn_vap_create(struct ieee80211com *, const char [IFNAMSIZ], int, enum ieee80211_opmode, int, const uint8_t [IEEE80211_ADDR_LEN], const uint8_t [IEEE80211_ADDR_LEN]); static void rtwn_vap_delete(struct ieee80211vap *); static int rtwn_read_chipid(struct rtwn_softc *); static int rtwn_ioctl_reset(struct ieee80211vap *, u_long); static void rtwn_set_media_status(struct rtwn_softc *, union sec_param *); #ifndef RTWN_WITHOUT_UCODE static int rtwn_tx_fwpkt_check(struct rtwn_softc *, struct ieee80211vap *); static int rtwn_construct_nulldata(struct rtwn_softc *, struct ieee80211vap *, uint8_t *, int); static int rtwn_push_nulldata(struct rtwn_softc *, struct ieee80211vap *); static void rtwn_pwrmode_init(void *); static void rtwn_set_pwrmode_cb(struct rtwn_softc *, union sec_param *); #endif static void rtwn_tsf_sync_adhoc(void *); static void rtwn_tsf_sync_adhoc_task(void *, int); static void rtwn_tsf_sync_enable(struct rtwn_softc *, struct ieee80211vap *); static void rtwn_set_ack_preamble(struct rtwn_softc *); static void rtwn_set_mode(struct rtwn_softc *, uint8_t, int); static int rtwn_monitor_newstate(struct ieee80211vap *, enum ieee80211_state, int); static int rtwn_newstate(struct ieee80211vap *, enum ieee80211_state, int); static void rtwn_calc_basicrates(struct rtwn_softc *); static int rtwn_run(struct rtwn_softc *, struct ieee80211vap *); #ifndef D4054 static void rtwn_watchdog(void *); #endif static void rtwn_parent(struct ieee80211com *); static int rtwn_dma_init(struct rtwn_softc *); static int rtwn_mac_init(struct rtwn_softc *); static void rtwn_mrr_init(struct rtwn_softc *); static void rtwn_scan_start(struct ieee80211com *); static void rtwn_scan_curchan(struct ieee80211_scan_state *, unsigned long); static void rtwn_scan_end(struct ieee80211com *); static void rtwn_getradiocaps(struct ieee80211com *, int, int *, struct ieee80211_channel[]); static void rtwn_update_chw(struct ieee80211com *); static void rtwn_set_channel(struct ieee80211com *); static int rtwn_wme_update(struct ieee80211com *); static void rtwn_update_slot(struct ieee80211com *); static void rtwn_update_slot_cb(struct rtwn_softc *, union sec_param *); static void rtwn_update_aifs(struct rtwn_softc *, uint8_t); static void rtwn_update_promisc(struct ieee80211com *); static void rtwn_update_mcast(struct ieee80211com *); static int rtwn_set_bssid(struct rtwn_softc *, const uint8_t *, int); static int rtwn_set_macaddr(struct rtwn_softc *, const uint8_t *, int); static struct ieee80211_node *rtwn_node_alloc(struct ieee80211vap *, const uint8_t mac[IEEE80211_ADDR_LEN]); static void rtwn_newassoc(struct ieee80211_node *, int); static void rtwn_node_free(struct ieee80211_node *); static void rtwn_init_beacon_reg(struct rtwn_softc *); static int rtwn_init(struct rtwn_softc *); static void rtwn_stop(struct rtwn_softc *); MALLOC_DEFINE(M_RTWN_PRIV, "rtwn_priv", "rtwn driver private state"); static const uint8_t rtwn_chan_2ghz[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 }; static const uint16_t wme2reg[] = { R92C_EDCA_BE_PARAM, R92C_EDCA_BK_PARAM, R92C_EDCA_VI_PARAM, R92C_EDCA_VO_PARAM }; int rtwn_attach(struct rtwn_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; int error; sc->cur_bcnq_id = RTWN_VAP_ID_INVALID; RTWN_NT_LOCK_INIT(sc); rtwn_cmdq_init(sc); #ifndef D4054 callout_init_mtx(&sc->sc_watchdog_to, &sc->sc_mtx, 0); #endif callout_init(&sc->sc_calib_to, 0); callout_init(&sc->sc_pwrmode_init, 0); mbufq_init(&sc->sc_snd, ifqmaxlen); RTWN_LOCK(sc); error = rtwn_read_chipid(sc); RTWN_UNLOCK(sc); if (error != 0) { device_printf(sc->sc_dev, "unsupported test chip\n"); goto detach; } error = rtwn_read_rom(sc); if (error != 0) { device_printf(sc->sc_dev, "%s: cannot read rom, error %d\n", __func__, error); goto detach; } if (sc->macid_limit > RTWN_MACID_LIMIT) { device_printf(sc->sc_dev, "macid limit will be reduced from %d to %d\n", sc->macid_limit, RTWN_MACID_LIMIT); sc->macid_limit = RTWN_MACID_LIMIT; } if (sc->cam_entry_limit > RTWN_CAM_ENTRY_LIMIT) { device_printf(sc->sc_dev, "cam entry limit will be reduced from %d to %d\n", sc->cam_entry_limit, RTWN_CAM_ENTRY_LIMIT); sc->cam_entry_limit = RTWN_CAM_ENTRY_LIMIT; } if (sc->txdesc_len > RTWN_TX_DESC_SIZE) { device_printf(sc->sc_dev, "adjust size for Tx descriptor (current %d, needed %d)\n", RTWN_TX_DESC_SIZE, sc->txdesc_len); goto detach; } device_printf(sc->sc_dev, "MAC/BB %s, RF 6052 %dT%dR\n", sc->name, sc->ntxchains, sc->nrxchains); ic->ic_softc = sc; ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ /* set device capabilities */ ic->ic_caps = IEEE80211_C_STA /* station mode */ | IEEE80211_C_MONITOR /* monitor mode */ | IEEE80211_C_IBSS /* adhoc mode */ | IEEE80211_C_HOSTAP /* hostap mode */ #if 0 /* TODO: HRPWM register setup */ #ifndef RTWN_WITHOUT_UCODE | IEEE80211_C_PMGT /* Station-side power mgmt */ #endif #endif | IEEE80211_C_SHPREAMBLE /* short preamble supported */ | IEEE80211_C_SHSLOT /* short slot time supported */ #if 0 | IEEE80211_C_BGSCAN /* capable of bg scanning */ #endif | IEEE80211_C_WPA /* 802.11i */ | IEEE80211_C_WME /* 802.11e */ | IEEE80211_C_SWAMSDUTX /* Do software A-MSDU TX */ | IEEE80211_C_FF /* Atheros fast-frames */ ; if (sc->sc_hwcrypto != RTWN_CRYPTO_SW) { ic->ic_cryptocaps = IEEE80211_CRYPTO_WEP | IEEE80211_CRYPTO_TKIP | IEEE80211_CRYPTO_AES_CCM; } ic->ic_htcaps = IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */ | IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */ | IEEE80211_HTCAP_SMPS_OFF /* SM PS mode disabled */ /* s/w capabilities */ | IEEE80211_HTC_HT /* HT operation */ | IEEE80211_HTC_AMPDU /* A-MPDU tx */ | IEEE80211_HTC_AMSDU /* A-MSDU tx */ ; if (sc->sc_ht40) { ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 /* 40 MHz channel width */ | IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */ ; } ic->ic_txstream = sc->ntxchains; ic->ic_rxstream = sc->nrxchains; /* Enable TX watchdog */ #ifdef D4054 ic->ic_flags_ext |= IEEE80211_FEXT_WATCHDOG; #endif /* Adjust capabilities. */ rtwn_adj_devcaps(sc); rtwn_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, ic->ic_channels); /* XXX TODO: setup regdomain if R92C_CHANNEL_PLAN_BY_HW bit is set. */ ieee80211_ifattach(ic); ic->ic_raw_xmit = rtwn_raw_xmit; ic->ic_scan_start = rtwn_scan_start; sc->sc_scan_curchan = ic->ic_scan_curchan; ic->ic_scan_curchan = rtwn_scan_curchan; ic->ic_scan_end = rtwn_scan_end; ic->ic_getradiocaps = rtwn_getradiocaps; ic->ic_update_chw = rtwn_update_chw; ic->ic_set_channel = rtwn_set_channel; ic->ic_transmit = rtwn_transmit; ic->ic_parent = rtwn_parent; ic->ic_vap_create = rtwn_vap_create; ic->ic_vap_delete = rtwn_vap_delete; ic->ic_wme.wme_update = rtwn_wme_update; ic->ic_updateslot = rtwn_update_slot; ic->ic_update_promisc = rtwn_update_promisc; ic->ic_update_mcast = rtwn_update_mcast; ic->ic_node_alloc = rtwn_node_alloc; ic->ic_newassoc = rtwn_newassoc; sc->sc_node_free = ic->ic_node_free; ic->ic_node_free = rtwn_node_free; rtwn_postattach(sc); rtwn_radiotap_attach(sc); if (bootverbose) ieee80211_announce(ic); return (0); detach: return (ENXIO); /* failure */ } static void rtwn_radiotap_attach(struct rtwn_softc *sc) { struct rtwn_rx_radiotap_header *rxtap = &sc->sc_rxtap; struct rtwn_tx_radiotap_header *txtap = &sc->sc_txtap; ieee80211_radiotap_attach(&sc->sc_ic, &txtap->wt_ihdr, sizeof(*txtap), RTWN_TX_RADIOTAP_PRESENT, &rxtap->wr_ihdr, sizeof(*rxtap), RTWN_RX_RADIOTAP_PRESENT); } void rtwn_sysctlattach(struct rtwn_softc *sc) { struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev); struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev); #if 1 sc->sc_ht40 = 0; SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "ht40", CTLFLAG_RDTUN, &sc->sc_ht40, sc->sc_ht40, "Enable 40 MHz mode support"); #endif #ifdef RTWN_DEBUG SYSCTL_ADD_U32(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "debug", CTLFLAG_RWTUN, &sc->sc_debug, sc->sc_debug, "Control debugging printfs"); #endif sc->sc_hwcrypto = RTWN_CRYPTO_PAIR; SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "hwcrypto", CTLFLAG_RDTUN, &sc->sc_hwcrypto, sc->sc_hwcrypto, "Enable h/w crypto: " "0 - disable, 1 - pairwise keys, 2 - all keys"); if (sc->sc_hwcrypto >= RTWN_CRYPTO_MAX) sc->sc_hwcrypto = RTWN_CRYPTO_FULL; sc->sc_ratectl_sysctl = RTWN_RATECTL_NET80211; SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "ratectl", CTLFLAG_RDTUN, &sc->sc_ratectl_sysctl, sc->sc_ratectl_sysctl, "Select rate control mechanism: " "0 - disabled, 1 - via net80211, 2 - via firmware"); if (sc->sc_ratectl_sysctl >= RTWN_RATECTL_MAX) sc->sc_ratectl_sysctl = RTWN_RATECTL_FW; sc->sc_ratectl = sc->sc_ratectl_sysctl; SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "ratectl_selected", CTLFLAG_RD, &sc->sc_ratectl, sc->sc_ratectl, "Currently selected rate control mechanism (by the driver)"); } void rtwn_detach(struct rtwn_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; if (ic->ic_softc == sc) { /* Stop command queue. */ RTWN_CMDQ_LOCK(sc); sc->sc_detached = 1; RTWN_CMDQ_UNLOCK(sc); ieee80211_draintask(ic, &sc->cmdq_task); ieee80211_ifdetach(ic); } rtwn_cmdq_destroy(sc); if (RTWN_NT_LOCK_INITIALIZED(sc)) RTWN_NT_LOCK_DESTROY(sc); } void rtwn_suspend(struct rtwn_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; ieee80211_suspend_all(ic); } void rtwn_resume(struct rtwn_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; ieee80211_resume_all(ic); } static void rtwn_vap_decrement_counters(struct rtwn_softc *sc, enum ieee80211_opmode opmode, int id) { RTWN_ASSERT_LOCKED(sc); if (id != RTWN_VAP_ID_INVALID) { KASSERT(id == 0 || id == 1, ("wrong vap id %d!\n", id)); KASSERT(sc->vaps[id] != NULL, ("vap pointer is NULL\n")); sc->vaps[id] = NULL; } switch (opmode) { case IEEE80211_M_HOSTAP: sc->ap_vaps--; /* FALLTHROUGH */ case IEEE80211_M_IBSS: sc->bcn_vaps--; /* FALLTHROUGH */ case IEEE80211_M_STA: sc->nvaps--; break; case IEEE80211_M_MONITOR: sc->mon_vaps--; break; default: KASSERT(0, ("wrong opmode %d\n", opmode)); break; } KASSERT(sc->vaps_running >= 0 && sc->monvaps_running >= 0, ("number of running vaps is negative (vaps %d, monvaps %d)\n", sc->vaps_running, sc->monvaps_running)); KASSERT(sc->vaps_running - sc->monvaps_running <= RTWN_PORT_COUNT, ("number of running vaps is too big (vaps %d, monvaps %d)\n", sc->vaps_running, sc->monvaps_running)); KASSERT(sc->nvaps >= 0 && sc->nvaps <= RTWN_PORT_COUNT, ("wrong value %d for nvaps\n", sc->nvaps)); KASSERT(sc->mon_vaps >= 0, ("mon_vaps is negative (%d)\n", sc->mon_vaps)); KASSERT(sc->bcn_vaps >= 0 && ((RTWN_CHIP_HAS_BCNQ1(sc) && sc->bcn_vaps <= RTWN_PORT_COUNT) || sc->bcn_vaps <= 1), ("bcn_vaps value %d is wrong\n", sc->bcn_vaps)); KASSERT(sc->ap_vaps >= 0 && ((RTWN_CHIP_HAS_BCNQ1(sc) && sc->ap_vaps <= RTWN_PORT_COUNT) || sc->ap_vaps <= 1), ("ap_vaps value %d is wrong\n", sc->ap_vaps)); } static void rtwn_set_ic_opmode(struct rtwn_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; RTWN_ASSERT_LOCKED(sc); /* for ieee80211_reset_erp() */ if (sc->bcn_vaps - sc->ap_vaps > 0) ic->ic_opmode = IEEE80211_M_IBSS; else if (sc->ap_vaps > 0) ic->ic_opmode = IEEE80211_M_HOSTAP; else if (sc->nvaps > 0) ic->ic_opmode = IEEE80211_M_STA; else ic->ic_opmode = IEEE80211_M_MONITOR; } static struct ieee80211vap * rtwn_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, enum ieee80211_opmode opmode, int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], const uint8_t mac[IEEE80211_ADDR_LEN]) { struct rtwn_softc *sc = ic->ic_softc; struct rtwn_vap *uvp; struct ieee80211vap *vap; int id = RTWN_VAP_ID_INVALID; RTWN_LOCK(sc); KASSERT(sc->nvaps <= RTWN_PORT_COUNT, ("nvaps overflow (%d > %d)\n", sc->nvaps, RTWN_PORT_COUNT)); KASSERT(sc->ap_vaps <= RTWN_PORT_COUNT, ("ap_vaps overflow (%d > %d)\n", sc->ap_vaps, RTWN_PORT_COUNT)); KASSERT(sc->bcn_vaps <= RTWN_PORT_COUNT, ("bcn_vaps overflow (%d > %d)\n", sc->bcn_vaps, RTWN_PORT_COUNT)); if (opmode != IEEE80211_M_MONITOR) { switch (sc->nvaps) { case 0: id = 0; break; case 1: if (sc->vaps[1] == NULL) id = 1; else if (sc->vaps[0] == NULL) id = 0; KASSERT(id != RTWN_VAP_ID_INVALID, ("no free ports left\n")); break; case 2: default: goto fail; } if (opmode == IEEE80211_M_IBSS || opmode == IEEE80211_M_HOSTAP) { if ((sc->bcn_vaps == 1 && !RTWN_CHIP_HAS_BCNQ1(sc)) || sc->bcn_vaps == RTWN_PORT_COUNT) goto fail; } } switch (opmode) { case IEEE80211_M_HOSTAP: sc->ap_vaps++; /* FALLTHROUGH */ case IEEE80211_M_IBSS: sc->bcn_vaps++; /* FALLTHROUGH */ case IEEE80211_M_STA: sc->nvaps++; break; case IEEE80211_M_MONITOR: sc->mon_vaps++; break; default: KASSERT(0, ("unknown opmode %d\n", opmode)); goto fail; } RTWN_UNLOCK(sc); uvp = malloc(sizeof(struct rtwn_vap), M_80211_VAP, M_WAITOK | M_ZERO); uvp->id = id; if (id != RTWN_VAP_ID_INVALID) { RTWN_LOCK(sc); sc->vaps[id] = uvp; RTWN_UNLOCK(sc); } vap = &uvp->vap; /* enable s/w bmiss handling for sta mode */ if (ieee80211_vap_setup(ic, vap, name, unit, opmode, flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { /* out of memory */ free(uvp, M_80211_VAP); RTWN_LOCK(sc); rtwn_vap_decrement_counters(sc, opmode, id); RTWN_UNLOCK(sc); return (NULL); } rtwn_beacon_init(sc, &uvp->bcn_desc.txd[0], uvp->id); rtwn_vap_preattach(sc, vap); /* override state transition machine */ uvp->newstate = vap->iv_newstate; if (opmode == IEEE80211_M_MONITOR) vap->iv_newstate = rtwn_monitor_newstate; else vap->iv_newstate = rtwn_newstate; vap->iv_update_beacon = rtwn_update_beacon; vap->iv_reset = rtwn_ioctl_reset; vap->iv_key_alloc = rtwn_key_alloc; vap->iv_key_set = rtwn_key_set; vap->iv_key_delete = rtwn_key_delete; vap->iv_max_aid = sc->macid_limit; /* 802.11n parameters */ vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_16; vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_64K; TIMEOUT_TASK_INIT(taskqueue_thread, &uvp->tx_beacon_csa, 0, rtwn_tx_beacon_csa, vap); if (opmode == IEEE80211_M_IBSS) { uvp->recv_mgmt = vap->iv_recv_mgmt; vap->iv_recv_mgmt = rtwn_adhoc_recv_mgmt; TASK_INIT(&uvp->tsf_sync_adhoc_task, 0, rtwn_tsf_sync_adhoc_task, vap); callout_init(&uvp->tsf_sync_adhoc, 0); } /* * NB: driver can select net80211 RA even when user requests * another mechanism. */ ieee80211_ratectl_init(vap); /* complete setup */ ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status, mac); RTWN_LOCK(sc); rtwn_set_ic_opmode(sc); if (sc->sc_flags & RTWN_RUNNING) { if (uvp->id != RTWN_VAP_ID_INVALID) rtwn_set_macaddr(sc, vap->iv_myaddr, uvp->id); rtwn_rxfilter_update(sc); } RTWN_UNLOCK(sc); return (vap); fail: RTWN_UNLOCK(sc); return (NULL); } static void rtwn_vap_delete(struct ieee80211vap *vap) { struct ieee80211com *ic = vap->iv_ic; struct rtwn_softc *sc = ic->ic_softc; struct rtwn_vap *uvp = RTWN_VAP(vap); /* Put vap into INIT state + stop device if needed. */ ieee80211_stop(vap); ieee80211_draintask(ic, &vap->iv_nstate_task); ieee80211_draintask(ic, &ic->ic_parent_task); RTWN_LOCK(sc); /* Cancel any unfinished Tx. */ rtwn_reset_lists(sc, vap); if (uvp->bcn_mbuf != NULL) m_freem(uvp->bcn_mbuf); rtwn_vap_decrement_counters(sc, vap->iv_opmode, uvp->id); rtwn_set_ic_opmode(sc); if (sc->sc_flags & RTWN_RUNNING) rtwn_rxfilter_update(sc); RTWN_UNLOCK(sc); if (vap->iv_opmode == IEEE80211_M_IBSS) { ieee80211_draintask(ic, &uvp->tsf_sync_adhoc_task); callout_drain(&uvp->tsf_sync_adhoc); } ieee80211_ratectl_deinit(vap); ieee80211_vap_detach(vap); free(uvp, M_80211_VAP); } static int rtwn_read_chipid(struct rtwn_softc *sc) { uint32_t reg; reg = rtwn_read_4(sc, R92C_SYS_CFG); if (reg & R92C_SYS_CFG_TRP_VAUX_EN) /* test chip */ return (EOPNOTSUPP); rtwn_read_chipid_vendor(sc, reg); return (0); } static int rtwn_ioctl_reset(struct ieee80211vap *vap, u_long cmd) { int error; switch (cmd) { #ifndef RTWN_WITHOUT_UCODE case IEEE80211_IOC_POWERSAVE: case IEEE80211_IOC_POWERSAVESLEEP: { struct rtwn_softc *sc = vap->iv_ic->ic_softc; struct rtwn_vap *uvp = RTWN_VAP(vap); if (vap->iv_opmode == IEEE80211_M_STA && uvp->id == 0) { RTWN_LOCK(sc); if (sc->sc_flags & RTWN_RUNNING) error = rtwn_set_pwrmode(sc, vap, 1); else error = 0; RTWN_UNLOCK(sc); if (error != 0) error = ENETRESET; } else error = EOPNOTSUPP; break; } #endif case IEEE80211_IOC_SHORTGI: case IEEE80211_IOC_RTSTHRESHOLD: case IEEE80211_IOC_PROTMODE: case IEEE80211_IOC_HTPROTMODE: case IEEE80211_IOC_LDPC: error = 0; break; default: error = ENETRESET; break; } return (error); } static void rtwn_set_media_status(struct rtwn_softc *sc, union sec_param *data) { sc->sc_set_media_status(sc, data->macid); } #ifndef RTWN_WITHOUT_UCODE static int rtwn_tx_fwpkt_check(struct rtwn_softc *sc, struct ieee80211vap *vap) { int ntries, error; for (ntries = 0; ntries < 5; ntries++) { error = rtwn_push_nulldata(sc, vap); if (error == 0) break; } if (ntries == 5) { device_printf(sc->sc_dev, "%s: cannot push f/w frames into chip, error %d!\n", __func__, error); return (error); } return (0); } static int rtwn_construct_nulldata(struct rtwn_softc *sc, struct ieee80211vap *vap, uint8_t *ptr, int qos) { struct rtwn_vap *uvp = RTWN_VAP(vap); struct ieee80211com *ic = &sc->sc_ic; struct rtwn_tx_desc_common *txd; struct ieee80211_frame *wh; int pktlen; /* XXX obtain from net80211 */ wh = (struct ieee80211_frame *)(ptr + sc->txdesc_len); wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA; wh->i_fc[1] = IEEE80211_FC1_DIR_TODS; IEEE80211_ADDR_COPY(wh->i_addr1, vap->iv_bss->ni_bssid); IEEE80211_ADDR_COPY(wh->i_addr2, vap->iv_myaddr); IEEE80211_ADDR_COPY(wh->i_addr3, vap->iv_bss->ni_macaddr); txd = (struct rtwn_tx_desc_common *)ptr; txd->offset = sc->txdesc_len; pktlen = sc->txdesc_len; if (qos) { struct ieee80211_qosframe *qwh; const int tid = WME_AC_TO_TID(WME_AC_BE); qwh = (struct ieee80211_qosframe *)wh; qwh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_QOS_NULL; qwh->i_qos[0] = tid & IEEE80211_QOS_TID; txd->pktlen = htole16(sizeof(struct ieee80211_qosframe)); pktlen += sizeof(struct ieee80211_qosframe); } else { wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA; txd->pktlen = htole16(sizeof(struct ieee80211_frame)); pktlen += sizeof(struct ieee80211_frame); } rtwn_fill_tx_desc_null(sc, ptr, ic->ic_curmode == IEEE80211_MODE_11B, qos, uvp->id); return (pktlen); } static int rtwn_push_nulldata(struct rtwn_softc *sc, struct ieee80211vap *vap) { struct rtwn_vap *uvp = RTWN_VAP(vap); struct ieee80211com *ic = vap->iv_ic; struct ieee80211_channel *c = ic->ic_curchan; struct mbuf *m; uint8_t *ptr; int required_size, bcn_size, null_size, null_data, error; if (!(sc->sc_flags & RTWN_FW_LOADED)) return (0); /* requires firmware */ KASSERT(sc->page_size > 0, ("page size was not set!\n")); /* Leave some space for beacon (multi-vap) */ bcn_size = roundup(RTWN_BCN_MAX_SIZE, sc->page_size); /* 1 page for Null Data + 1 page for Qos Null Data frames. */ required_size = bcn_size + sc->page_size * 2; m = m_get2(required_size, M_NOWAIT, MT_DATA, M_PKTHDR); if (m == NULL) return (ENOMEM); /* Setup beacon descriptor. */ rtwn_beacon_set_rate(sc, &uvp->bcn_desc.txd[0], IEEE80211_IS_CHAN_5GHZ(c)); ptr = mtod(m, uint8_t *); memset(ptr, 0, required_size - sc->txdesc_len); /* Construct Null Data frame. */ ptr += bcn_size - sc->txdesc_len; null_size = rtwn_construct_nulldata(sc, vap, ptr, 0); KASSERT(null_size < sc->page_size, ("recalculate size for Null Data frame\n")); /* Construct Qos Null Data frame. */ ptr += roundup(null_size, sc->page_size); null_size = rtwn_construct_nulldata(sc, vap, ptr, 1); KASSERT(null_size < sc->page_size, ("recalculate size for Qos Null Data frame\n")); /* Do not try to detect a beacon here. */ rtwn_setbits_1_shift(sc, R92C_CR, 0, R92C_CR_ENSWBCN, 1); rtwn_setbits_1_shift(sc, R92C_FWHW_TXQ_CTRL, R92C_FWHW_TXQ_CTRL_REAL_BEACON, 0, 2); if (uvp->bcn_mbuf != NULL) { rtwn_beacon_unload(sc, uvp->id); m_freem(uvp->bcn_mbuf); } m->m_pkthdr.len = m->m_len = required_size - sc->txdesc_len; uvp->bcn_mbuf = m; error = rtwn_tx_beacon_check(sc, uvp); if (error != 0) { RTWN_DPRINTF(sc, RTWN_DEBUG_BEACON, "%s: frame was not recognized!\n", __func__); goto fail; } /* Setup addresses in firmware. */ null_data = howmany(bcn_size, sc->page_size); error = rtwn_set_rsvd_page(sc, 0, null_data, null_data + 1); if (error != 0) { device_printf(sc->sc_dev, "%s: CMD_RSVD_PAGE was not sent, error %d\n", __func__, error); goto fail; } fail: /* Re-enable beacon detection. */ rtwn_setbits_1_shift(sc, R92C_FWHW_TXQ_CTRL, 0, R92C_FWHW_TXQ_CTRL_REAL_BEACON, 2); rtwn_setbits_1_shift(sc, R92C_CR, R92C_CR_ENSWBCN, 0, 1); /* Restore beacon (if present). */ if (sc->bcn_vaps > 0 && sc->vaps[!uvp->id] != NULL) { struct rtwn_vap *uvp2 = sc->vaps[!uvp->id]; if (uvp2->curr_mode != R92C_MSR_NOLINK) error = rtwn_tx_beacon_check(sc, uvp2); } return (error); } static void rtwn_pwrmode_init(void *arg) { struct rtwn_softc *sc = arg; rtwn_cmd_sleepable(sc, NULL, 0, rtwn_set_pwrmode_cb); } static void rtwn_set_pwrmode_cb(struct rtwn_softc *sc, union sec_param *data) { struct ieee80211vap *vap = &sc->vaps[0]->vap; if (vap != NULL) rtwn_set_pwrmode(sc, vap, 1); } #endif static void rtwn_tsf_sync_adhoc(void *arg) { struct ieee80211vap *vap = arg; struct ieee80211com *ic = vap->iv_ic; struct rtwn_vap *uvp = RTWN_VAP(vap); if (uvp->curr_mode != R92C_MSR_NOLINK) { /* Do it in process context. */ ieee80211_runtask(ic, &uvp->tsf_sync_adhoc_task); } } /* * Workaround for TSF synchronization: * when BSSID filter in IBSS mode is not set * (and TSF synchronization is enabled), then any beacon may update it. * This routine synchronizes it when BSSID matching is enabled (IBSS merge * is not possible during this period). * * NOTE: there is no race with rtwn_newstate(), since it uses the same * taskqueue. */ static void rtwn_tsf_sync_adhoc_task(void *arg, int pending) { struct ieee80211vap *vap = arg; struct rtwn_vap *uvp = RTWN_VAP(vap); struct rtwn_softc *sc = vap->iv_ic->ic_softc; struct ieee80211_node *ni; RTWN_LOCK(sc); ni = ieee80211_ref_node(vap->iv_bss); /* Accept beacons with the same BSSID. */ rtwn_set_rx_bssid_all(sc, 0); /* Deny RCR updates. */ sc->sc_flags |= RTWN_RCR_LOCKED; /* Enable synchronization. */ rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id), R92C_BCN_CTRL_DIS_TSF_UDT0, 0); /* Synchronize. */ rtwn_delay(sc, ni->ni_intval * 5 * 1000); /* Disable synchronization. */ rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id), 0, R92C_BCN_CTRL_DIS_TSF_UDT0); /* Accept all beacons. */ sc->sc_flags &= ~RTWN_RCR_LOCKED; rtwn_set_rx_bssid_all(sc, 1); /* Schedule next TSF synchronization. */ callout_reset(&uvp->tsf_sync_adhoc, 60*hz, rtwn_tsf_sync_adhoc, vap); ieee80211_free_node(ni); RTWN_UNLOCK(sc); } static void rtwn_tsf_sync_enable(struct rtwn_softc *sc, struct ieee80211vap *vap) { struct ieee80211com *ic = &sc->sc_ic; struct rtwn_vap *uvp = RTWN_VAP(vap); /* Reset TSF. */ rtwn_write_1(sc, R92C_DUAL_TSF_RST, R92C_DUAL_TSF_RESET(uvp->id)); switch (vap->iv_opmode) { case IEEE80211_M_STA: /* Enable TSF synchronization. */ rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id), R92C_BCN_CTRL_DIS_TSF_UDT0, 0); break; case IEEE80211_M_IBSS: ieee80211_runtask(ic, &uvp->tsf_sync_adhoc_task); /* FALLTHROUGH */ case IEEE80211_M_HOSTAP: /* Enable beaconing. */ rtwn_beacon_enable(sc, uvp->id, 1); break; default: device_printf(sc->sc_dev, "undefined opmode %d\n", vap->iv_opmode); return; } } static void rtwn_set_ack_preamble(struct rtwn_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; uint32_t reg; reg = rtwn_read_4(sc, R92C_WMAC_TRXPTCL_CTL); if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) reg |= R92C_WMAC_TRXPTCL_SHPRE; else reg &= ~R92C_WMAC_TRXPTCL_SHPRE; rtwn_write_4(sc, R92C_WMAC_TRXPTCL_CTL, reg); } static void rtwn_set_mode(struct rtwn_softc *sc, uint8_t mode, int id) { rtwn_setbits_1(sc, R92C_MSR, R92C_MSR_MASK << id * 2, mode << id * 2); if (sc->vaps[id] != NULL) sc->vaps[id]->curr_mode = mode; } static int rtwn_monitor_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) { struct ieee80211com *ic = vap->iv_ic; struct rtwn_softc *sc = ic->ic_softc; struct rtwn_vap *uvp = RTWN_VAP(vap); RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s -> %s\n", ieee80211_state_name[vap->iv_state], ieee80211_state_name[nstate]); if (vap->iv_state != nstate) { IEEE80211_UNLOCK(ic); RTWN_LOCK(sc); switch (nstate) { case IEEE80211_S_INIT: sc->vaps_running--; sc->monvaps_running--; if (sc->vaps_running == 0) { /* Turn link LED off. */ rtwn_set_led(sc, RTWN_LED_LINK, 0); } break; case IEEE80211_S_RUN: sc->vaps_running++; sc->monvaps_running++; if (sc->vaps_running == 1) { /* Turn link LED on. */ rtwn_set_led(sc, RTWN_LED_LINK, 1); } break; default: /* NOTREACHED */ break; } RTWN_UNLOCK(sc); IEEE80211_LOCK(ic); } return (uvp->newstate(vap, nstate, arg)); } static int rtwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) { struct rtwn_vap *uvp = RTWN_VAP(vap); struct ieee80211com *ic = vap->iv_ic; struct rtwn_softc *sc = ic->ic_softc; enum ieee80211_state ostate; int error, early_newstate; ostate = vap->iv_state; RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s -> %s\n", ieee80211_state_name[ostate], ieee80211_state_name[nstate]); if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC && ostate == IEEE80211_S_INIT && nstate == IEEE80211_S_RUN) { /* need to call iv_newstate() firstly */ error = uvp->newstate(vap, nstate, arg); if (error != 0) return (error); early_newstate = 1; } else early_newstate = 0; if (ostate == IEEE80211_S_CSA) { taskqueue_cancel_timeout(taskqueue_thread, &uvp->tx_beacon_csa, NULL); /* * In multi-vap case second counter may not be cleared * properly. */ vap->iv_csa_count = 0; } IEEE80211_UNLOCK(ic); RTWN_LOCK(sc); if (ostate == IEEE80211_S_CSA) { /* Unblock all queues (multi-vap case). */ rtwn_write_1(sc, R92C_TXPAUSE, 0); } if ((ostate == IEEE80211_S_RUN && nstate != IEEE80211_S_CSA) || ostate == IEEE80211_S_CSA) { sc->vaps_running--; /* Set media status to 'No Link'. */ rtwn_set_mode(sc, R92C_MSR_NOLINK, uvp->id); if (vap->iv_opmode == IEEE80211_M_IBSS) { /* Stop periodical TSF synchronization. */ callout_stop(&uvp->tsf_sync_adhoc); } /* Disable TSF synchronization / beaconing. */ rtwn_beacon_enable(sc, uvp->id, 0); rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id), 0, R92C_BCN_CTRL_DIS_TSF_UDT0); /* NB: monitor mode vaps are using port 0. */ if (uvp->id != 0 || sc->monvaps_running == 0) { /* Reset TSF. */ rtwn_write_1(sc, R92C_DUAL_TSF_RST, R92C_DUAL_TSF_RESET(uvp->id)); } #ifndef RTWN_WITHOUT_UCODE if ((ic->ic_caps & IEEE80211_C_PMGT) != 0 && uvp->id == 0) { /* Disable power management. */ callout_stop(&sc->sc_pwrmode_init); rtwn_set_pwrmode(sc, vap, 0); } #endif if (sc->vaps_running - sc->monvaps_running > 0) { /* Recalculate basic rates bitmap. */ rtwn_calc_basicrates(sc); } if (sc->vaps_running == sc->monvaps_running) { /* Stop calibration. */ callout_stop(&sc->sc_calib_to); /* Stop Rx of data frames. */ rtwn_write_2(sc, R92C_RXFLTMAP2, 0); /* Reset EDCA parameters. */ rtwn_write_4(sc, R92C_EDCA_VO_PARAM, 0x002f3217); rtwn_write_4(sc, R92C_EDCA_VI_PARAM, 0x005e4317); rtwn_write_4(sc, R92C_EDCA_BE_PARAM, 0x00105320); rtwn_write_4(sc, R92C_EDCA_BK_PARAM, 0x0000a444); if (sc->vaps_running == 0) { /* Turn link LED off. */ rtwn_set_led(sc, RTWN_LED_LINK, 0); } } } error = 0; switch (nstate) { case IEEE80211_S_SCAN: /* Pause AC Tx queues. */ if (sc->vaps_running == 0) rtwn_setbits_1(sc, R92C_TXPAUSE, 0, R92C_TX_QUEUE_AC); break; case IEEE80211_S_RUN: error = rtwn_run(sc, vap); if (error != 0) { device_printf(sc->sc_dev, "%s: could not move to RUN state\n", __func__); break; } sc->vaps_running++; break; case IEEE80211_S_CSA: /* Block all Tx queues (except beacon queue). */ rtwn_setbits_1(sc, R92C_TXPAUSE, 0, R92C_TX_QUEUE_AC | R92C_TX_QUEUE_MGT | R92C_TX_QUEUE_HIGH); break; default: break; } RTWN_UNLOCK(sc); IEEE80211_LOCK(ic); if (error != 0) return (error); return (early_newstate ? 0 : uvp->newstate(vap, nstate, arg)); } static void rtwn_calc_basicrates(struct rtwn_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; uint32_t basicrates; int i; RTWN_ASSERT_LOCKED(sc); if (ic->ic_flags & IEEE80211_F_SCAN) return; /* will be done by rtwn_scan_end(). */ basicrates = 0; for (i = 0; i < nitems(sc->vaps); i++) { struct rtwn_vap *rvp; struct ieee80211vap *vap; struct ieee80211_node *ni; uint32_t rates; rvp = sc->vaps[i]; if (rvp == NULL || rvp->curr_mode == R92C_MSR_NOLINK) continue; vap = &rvp->vap; if (vap->iv_bss == NULL) continue; ni = ieee80211_ref_node(vap->iv_bss); rtwn_get_rates(sc, &ni->ni_rates, NULL, &rates, NULL, 1); basicrates |= rates; ieee80211_free_node(ni); } if (basicrates == 0) return; /* XXX initial RTS rate? */ rtwn_set_basicrates(sc, basicrates); } static int rtwn_run(struct rtwn_softc *sc, struct ieee80211vap *vap) { struct ieee80211com *ic = vap->iv_ic; struct rtwn_vap *uvp = RTWN_VAP(vap); struct ieee80211_node *ni; uint8_t mode; int error; RTWN_ASSERT_LOCKED(sc); error = 0; ni = ieee80211_ref_node(vap->iv_bss); if (ic->ic_bsschan == IEEE80211_CHAN_ANYC || ni->ni_chan == IEEE80211_CHAN_ANYC) { error = EINVAL; goto fail; } switch (vap->iv_opmode) { case IEEE80211_M_STA: mode = R92C_MSR_INFRA; break; case IEEE80211_M_IBSS: mode = R92C_MSR_ADHOC; break; case IEEE80211_M_HOSTAP: mode = R92C_MSR_AP; break; default: KASSERT(0, ("undefined opmode %d\n", vap->iv_opmode)); error = EINVAL; goto fail; } /* Set media status to 'Associated'. */ rtwn_set_mode(sc, mode, uvp->id); /* Set AssocID. */ /* XXX multi-vap? */ rtwn_write_2(sc, R92C_BCN_PSR_RPT, 0xc000 | IEEE80211_NODE_AID(ni)); /* Set BSSID. */ rtwn_set_bssid(sc, ni->ni_bssid, uvp->id); /* Set beacon interval. */ rtwn_write_2(sc, R92C_BCN_INTERVAL(uvp->id), ni->ni_intval); if (sc->vaps_running == sc->monvaps_running) { /* Enable Rx of data frames. */ rtwn_write_2(sc, R92C_RXFLTMAP2, 0xffff); /* Flush all AC queues. */ rtwn_write_1(sc, R92C_TXPAUSE, 0); } #ifndef RTWN_WITHOUT_UCODE /* Upload (QoS) Null Data frame to firmware. */ /* Note: do this for port 0 only. */ if ((ic->ic_caps & IEEE80211_C_PMGT) != 0 && vap->iv_opmode == IEEE80211_M_STA && uvp->id == 0) { error = rtwn_tx_fwpkt_check(sc, vap); if (error != 0) goto fail; /* Setup power management. */ /* * NB: it will be enabled immediately - delay it, * so 4-Way handshake will not be interrupted. */ callout_reset(&sc->sc_pwrmode_init, 5*hz, rtwn_pwrmode_init, sc); } #endif /* Enable TSF synchronization. */ rtwn_tsf_sync_enable(sc, vap); if (vap->iv_opmode == IEEE80211_M_HOSTAP || vap->iv_opmode == IEEE80211_M_IBSS) { error = rtwn_setup_beacon(sc, ni); if (error != 0) { device_printf(sc->sc_dev, "unable to push beacon into the chip, " "error %d\n", error); goto fail; } } /* Set ACK preamble type. */ rtwn_set_ack_preamble(sc); /* Set basic rates mask. */ rtwn_calc_basicrates(sc); #ifdef RTWN_TODO rtwn_write_1(sc, R92C_SIFS_CCK + 1, 10); rtwn_write_1(sc, R92C_SIFS_OFDM + 1, 10); rtwn_write_1(sc, R92C_SPEC_SIFS + 1, 10); rtwn_write_1(sc, R92C_MAC_SPEC_SIFS + 1, 10); rtwn_write_1(sc, R92C_R2T_SIFS + 1, 10); rtwn_write_1(sc, R92C_T2T_SIFS + 1, 10); #endif if (sc->vaps_running == sc->monvaps_running) { /* Reset temperature calibration state machine. */ sc->sc_flags &= ~RTWN_TEMP_MEASURED; sc->thcal_temp = sc->thermal_meter; /* Start periodic calibration. */ callout_reset(&sc->sc_calib_to, 2*hz, rtwn_calib_to, sc); if (sc->vaps_running == 0) { /* Turn link LED on. */ rtwn_set_led(sc, RTWN_LED_LINK, 1); } } fail: ieee80211_free_node(ni); return (error); } #ifndef D4054 static void rtwn_watchdog(void *arg) { struct rtwn_softc *sc = arg; struct ieee80211com *ic = &sc->sc_ic; RTWN_ASSERT_LOCKED(sc); KASSERT(sc->sc_flags & RTWN_RUNNING, ("not running")); if (sc->sc_tx_timer != 0 && --sc->sc_tx_timer == 0) { ic_printf(ic, "device timeout\n"); ieee80211_restart_all(ic); return; } callout_reset(&sc->sc_watchdog_to, hz, rtwn_watchdog, sc); } #endif static void rtwn_parent(struct ieee80211com *ic) { struct rtwn_softc *sc = ic->ic_softc; struct ieee80211vap *vap; if (ic->ic_nrunning > 0) { if (rtwn_init(sc) != 0) { IEEE80211_LOCK(ic); TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) ieee80211_stop_locked(vap); IEEE80211_UNLOCK(ic); } else ieee80211_start_all(ic); } else rtwn_stop(sc); } static int rtwn_dma_init(struct rtwn_softc *sc) { #define RTWN_CHK(res) do { \ if (res != 0) \ return (EIO); \ } while(0) uint16_t reg; uint8_t tx_boundary; int error; /* Initialize LLT table. */ error = rtwn_llt_init(sc); if (error != 0) return (error); /* Set the number of pages for each queue. */ RTWN_DPRINTF(sc, RTWN_DEBUG_RESET, "%s: pages per queue: high %d, normal %d, low %d, public %d\n", __func__, sc->nhqpages, sc->nnqpages, sc->nlqpages, sc->npubqpages); RTWN_CHK(rtwn_write_1(sc, R92C_RQPN_NPQ, sc->nnqpages)); RTWN_CHK(rtwn_write_4(sc, R92C_RQPN, /* Set number of pages for public queue. */ SM(R92C_RQPN_PUBQ, sc->npubqpages) | /* Set number of pages for high priority queue. */ SM(R92C_RQPN_HPQ, sc->nhqpages) | /* Set number of pages for low priority queue. */ SM(R92C_RQPN_LPQ, sc->nlqpages) | /* Load values. */ R92C_RQPN_LD)); /* Initialize TX buffer boundary. */ KASSERT(sc->page_count < 255 && sc->page_count > 0, ("page_count is %d\n", sc->page_count)); tx_boundary = sc->page_count + 1; RTWN_CHK(rtwn_write_1(sc, R92C_TXPKTBUF_BCNQ_BDNY, tx_boundary)); RTWN_CHK(rtwn_write_1(sc, R92C_TXPKTBUF_MGQ_BDNY, tx_boundary)); RTWN_CHK(rtwn_write_1(sc, R92C_TXPKTBUF_WMAC_LBK_BF_HD, tx_boundary)); RTWN_CHK(rtwn_write_1(sc, R92C_TRXFF_BNDY, tx_boundary)); RTWN_CHK(rtwn_write_1(sc, R92C_TDECTRL + 1, tx_boundary)); error = rtwn_init_bcnq1_boundary(sc); if (error != 0) return (error); /* Set queue to USB pipe mapping. */ /* Note: PCIe devices are using some magic number here. */ reg = rtwn_get_qmap(sc); RTWN_CHK(rtwn_setbits_2(sc, R92C_TRXDMA_CTRL, R92C_TRXDMA_CTRL_QMAP_M, reg)); /* Configure Tx/Rx DMA (PCIe). */ rtwn_set_desc_addr(sc); /* Set Tx/Rx transfer page boundary. */ RTWN_CHK(rtwn_write_2(sc, R92C_TRXFF_BNDY + 2, sc->rx_dma_size - 1)); /* Set Tx/Rx transfer page size. */ rtwn_set_page_size(sc); return (0); } static int rtwn_mac_init(struct rtwn_softc *sc) { int i, error; /* Write MAC initialization values. */ for (i = 0; i < sc->mac_size; i++) { error = rtwn_write_1(sc, sc->mac_prog[i].reg, sc->mac_prog[i].val); if (error != 0) return (error); } return (0); } static void rtwn_mrr_init(struct rtwn_softc *sc) { int i; /* Drop rate index by 1 per retry. */ for (i = 0; i < R92C_DARFRC_SIZE; i++) { rtwn_write_1(sc, R92C_DARFRC + i, i + 1); rtwn_write_1(sc, R92C_RARFRC + i, i + 1); } } static void rtwn_scan_start(struct ieee80211com *ic) { struct rtwn_softc *sc = ic->ic_softc; RTWN_LOCK(sc); /* Pause beaconing. */ rtwn_setbits_1(sc, R92C_TXPAUSE, 0, R92C_TX_QUEUE_BCN); /* Receive beacons / probe responses from any BSSID. */ if (sc->bcn_vaps == 0) rtwn_set_rx_bssid_all(sc, 1); RTWN_UNLOCK(sc); } static void rtwn_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell) { struct rtwn_softc *sc = ss->ss_ic->ic_softc; /* Make link LED blink during scan. */ RTWN_LOCK(sc); rtwn_set_led(sc, RTWN_LED_LINK, !sc->ledlink); RTWN_UNLOCK(sc); sc->sc_scan_curchan(ss, maxdwell); } static void rtwn_scan_end(struct ieee80211com *ic) { struct rtwn_softc *sc = ic->ic_softc; RTWN_LOCK(sc); /* Restore limitations. */ if (ic->ic_promisc == 0 && sc->bcn_vaps == 0) rtwn_set_rx_bssid_all(sc, 0); /* Restore LED state. */ rtwn_set_led(sc, RTWN_LED_LINK, (sc->vaps_running != 0)); /* Restore basic rates mask. */ rtwn_calc_basicrates(sc); /* Resume beaconing. */ rtwn_setbits_1(sc, R92C_TXPAUSE, R92C_TX_QUEUE_BCN, 0); RTWN_UNLOCK(sc); } static void rtwn_getradiocaps(struct ieee80211com *ic, int maxchans, int *nchans, struct ieee80211_channel chans[]) { struct rtwn_softc *sc = ic->ic_softc; uint8_t bands[IEEE80211_MODE_BYTES]; int i; memset(bands, 0, sizeof(bands)); setbit(bands, IEEE80211_MODE_11B); setbit(bands, IEEE80211_MODE_11G); setbit(bands, IEEE80211_MODE_11NG); ieee80211_add_channel_list_2ghz(chans, maxchans, nchans, rtwn_chan_2ghz, nitems(rtwn_chan_2ghz), bands, !!(ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40)); /* XXX workaround add_channel_list() limitations */ setbit(bands, IEEE80211_MODE_11A); setbit(bands, IEEE80211_MODE_11NA); for (i = 0; i < nitems(sc->chan_num_5ghz); i++) { if (sc->chan_num_5ghz[i] == 0) continue; ieee80211_add_channel_list_5ghz(chans, maxchans, nchans, sc->chan_list_5ghz[i], sc->chan_num_5ghz[i], bands, !!(ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40)); } } static void rtwn_update_chw(struct ieee80211com *ic) { } static void rtwn_set_channel(struct ieee80211com *ic) { struct rtwn_softc *sc = ic->ic_softc; struct ieee80211_channel *c = ic->ic_curchan; RTWN_LOCK(sc); rtwn_set_chan(sc, c); sc->sc_rxtap.wr_chan_freq = htole16(c->ic_freq); sc->sc_rxtap.wr_chan_flags = htole16(c->ic_flags); sc->sc_txtap.wt_chan_freq = htole16(c->ic_freq); sc->sc_txtap.wt_chan_flags = htole16(c->ic_flags); RTWN_UNLOCK(sc); } static int rtwn_wme_update(struct ieee80211com *ic) { struct chanAccParams chp; struct ieee80211_channel *c = ic->ic_curchan; struct rtwn_softc *sc = ic->ic_softc; struct wmeParams *wmep = sc->cap_wmeParams; uint8_t aifs, acm, slottime; int ac; ieee80211_wme_ic_getparams(ic, &chp); /* Prevent possible races. */ IEEE80211_LOCK(ic); /* XXX */ RTWN_LOCK(sc); memcpy(wmep, chp.cap_wmeParams, sizeof(sc->cap_wmeParams)); RTWN_UNLOCK(sc); IEEE80211_UNLOCK(ic); acm = 0; slottime = IEEE80211_GET_SLOTTIME(ic); RTWN_LOCK(sc); for (ac = WME_AC_BE; ac < WME_NUM_AC; ac++) { /* AIFS[AC] = AIFSN[AC] * aSlotTime + aSIFSTime. */ aifs = wmep[ac].wmep_aifsn * slottime + (IEEE80211_IS_CHAN_5GHZ(c) ? IEEE80211_DUR_OFDM_SIFS : IEEE80211_DUR_SIFS); rtwn_write_4(sc, wme2reg[ac], SM(R92C_EDCA_PARAM_TXOP, wmep[ac].wmep_txopLimit) | SM(R92C_EDCA_PARAM_ECWMIN, wmep[ac].wmep_logcwmin) | SM(R92C_EDCA_PARAM_ECWMAX, wmep[ac].wmep_logcwmax) | SM(R92C_EDCA_PARAM_AIFS, aifs)); if (ac != WME_AC_BE) acm |= wmep[ac].wmep_acm << ac; } if (acm != 0) acm |= R92C_ACMHWCTRL_EN; rtwn_setbits_1(sc, R92C_ACMHWCTRL, R92C_ACMHWCTRL_ACM_MASK, acm); RTWN_UNLOCK(sc); return 0; } static void rtwn_update_slot(struct ieee80211com *ic) { rtwn_cmd_sleepable(ic->ic_softc, NULL, 0, rtwn_update_slot_cb); } static void rtwn_update_slot_cb(struct rtwn_softc *sc, union sec_param *data) { struct ieee80211com *ic = &sc->sc_ic; uint8_t slottime; slottime = IEEE80211_GET_SLOTTIME(ic); RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s: setting slot time to %uus\n", __func__, slottime); rtwn_write_1(sc, R92C_SLOT, slottime); rtwn_update_aifs(sc, slottime); } static void rtwn_update_aifs(struct rtwn_softc *sc, uint8_t slottime) { struct ieee80211_channel *c = sc->sc_ic.ic_curchan; const struct wmeParams *wmep = sc->cap_wmeParams; uint8_t aifs, ac; for (ac = WME_AC_BE; ac < WME_NUM_AC; ac++) { /* AIFS[AC] = AIFSN[AC] * aSlotTime + aSIFSTime. */ aifs = wmep[ac].wmep_aifsn * slottime + (IEEE80211_IS_CHAN_5GHZ(c) ? IEEE80211_DUR_OFDM_SIFS : IEEE80211_DUR_SIFS); rtwn_write_1(sc, wme2reg[ac], aifs); } } static void rtwn_update_promisc(struct ieee80211com *ic) { struct rtwn_softc *sc = ic->ic_softc; RTWN_LOCK(sc); if (sc->sc_flags & RTWN_RUNNING) rtwn_set_promisc(sc); RTWN_UNLOCK(sc); } static void rtwn_update_mcast(struct ieee80211com *ic) { struct rtwn_softc *sc = ic->ic_softc; RTWN_LOCK(sc); if (sc->sc_flags & RTWN_RUNNING) rtwn_set_multi(sc); RTWN_UNLOCK(sc); } static int rtwn_set_bssid(struct rtwn_softc *sc, const uint8_t *bssid, int id) { int error; error = rtwn_write_4(sc, R92C_BSSID(id), le32dec(&bssid[0])); if (error != 0) return (error); error = rtwn_write_2(sc, R92C_BSSID(id) + 4, le16dec(&bssid[4])); return (error); } static int rtwn_set_macaddr(struct rtwn_softc *sc, const uint8_t *addr, int id) { int error; error = rtwn_write_4(sc, R92C_MACID(id), le32dec(&addr[0])); if (error != 0) return (error); error = rtwn_write_2(sc, R92C_MACID(id) + 4, le16dec(&addr[4])); return (error); } static struct ieee80211_node * rtwn_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN]) { struct rtwn_node *un; un = malloc(sizeof (struct rtwn_node), M_80211_NODE, M_NOWAIT | M_ZERO); if (un == NULL) return NULL; un->id = RTWN_MACID_UNDEFINED; un->avg_pwdb = -1; return &un->ni; } static void rtwn_newassoc(struct ieee80211_node *ni, int isnew __unused) { struct rtwn_softc *sc = ni->ni_ic->ic_softc; struct rtwn_node *un = RTWN_NODE(ni); int id; if (un->id != RTWN_MACID_UNDEFINED) return; RTWN_NT_LOCK(sc); for (id = 0; id <= sc->macid_limit; id++) { if (id != RTWN_MACID_BC && sc->node_list[id] == NULL) { un->id = id; sc->node_list[id] = ni; break; } } RTWN_NT_UNLOCK(sc); if (id > sc->macid_limit) { device_printf(sc->sc_dev, "%s: node table is full\n", __func__); return; } /* Notify firmware. */ id |= RTWN_MACID_VALID; rtwn_cmd_sleepable(sc, &id, sizeof(id), rtwn_set_media_status); } static void rtwn_node_free(struct ieee80211_node *ni) { struct rtwn_softc *sc = ni->ni_ic->ic_softc; struct rtwn_node *un = RTWN_NODE(ni); RTWN_NT_LOCK(sc); if (un->id != RTWN_MACID_UNDEFINED) { sc->node_list[un->id] = NULL; rtwn_cmd_sleepable(sc, &un->id, sizeof(un->id), rtwn_set_media_status); } RTWN_NT_UNLOCK(sc); sc->sc_node_free(ni); } static void rtwn_init_beacon_reg(struct rtwn_softc *sc) { rtwn_write_1(sc, R92C_BCN_CTRL(0), R92C_BCN_CTRL_DIS_TSF_UDT0); rtwn_write_1(sc, R92C_BCN_CTRL(1), R92C_BCN_CTRL_DIS_TSF_UDT0); rtwn_write_2(sc, R92C_TBTT_PROHIBIT, 0x6404); rtwn_write_1(sc, R92C_DRVERLYINT, 0x05); rtwn_write_1(sc, R92C_BCNDMATIM, 0x02); rtwn_write_2(sc, R92C_BCNTCFG, 0x660f); } static int rtwn_init(struct rtwn_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; int i, error; RTWN_LOCK(sc); if (sc->sc_flags & RTWN_RUNNING) { RTWN_UNLOCK(sc); return (0); } sc->sc_flags |= RTWN_STARTED; /* Power on adapter. */ error = rtwn_power_on(sc); if (error != 0) goto fail; #ifndef RTWN_WITHOUT_UCODE /* Load 8051 microcode. */ error = rtwn_load_firmware(sc); if (error == 0) sc->sc_flags |= RTWN_FW_LOADED; /* Init firmware commands ring. */ sc->fwcur = 0; #endif /* Initialize MAC block. */ error = rtwn_mac_init(sc); if (error != 0) { device_printf(sc->sc_dev, "%s: error while initializing MAC block\n", __func__); goto fail; } /* Initialize DMA. */ error = rtwn_dma_init(sc); if (error != 0) goto fail; /* Drop incorrect TX (USB). */ rtwn_drop_incorrect_tx(sc); /* Set info size in Rx descriptors (in 64-bit words). */ rtwn_write_1(sc, R92C_RX_DRVINFO_SZ, R92C_RX_DRVINFO_SZ_DEF); /* Init interrupts. */ rtwn_init_intr(sc); for (i = 0; i < nitems(sc->vaps); i++) { struct rtwn_vap *uvp = sc->vaps[i]; /* Set initial network type. */ rtwn_set_mode(sc, R92C_MSR_NOLINK, i); if (uvp == NULL) continue; /* Set MAC address. */ error = rtwn_set_macaddr(sc, uvp->vap.iv_myaddr, uvp->id); if (error != 0) goto fail; } /* Initialize Rx filter. */ rtwn_rxfilter_init(sc); /* Set short/long retry limits. */ rtwn_write_2(sc, R92C_RL, SM(R92C_RL_SRL, 0x30) | SM(R92C_RL_LRL, 0x30)); /* Initialize EDCA parameters. */ rtwn_init_edca(sc); rtwn_setbits_1(sc, R92C_FWHW_TXQ_CTRL, 0, R92C_FWHW_TXQ_CTRL_AMPDU_RTY_NEW); /* Set ACK timeout. */ rtwn_write_1(sc, R92C_ACKTO, sc->ackto); /* Setup aggregation. */ /* Tx aggregation. */ rtwn_init_tx_agg(sc); rtwn_init_rx_agg(sc); /* Initialize beacon parameters. */ rtwn_init_beacon_reg(sc); /* Init A-MPDU parameters. */ rtwn_init_ampdu(sc); /* Init MACTXEN / MACRXEN after setting RxFF boundary. */ rtwn_setbits_1(sc, R92C_CR, 0, R92C_CR_MACTXEN | R92C_CR_MACRXEN); /* Initialize BB/RF blocks. */ rtwn_init_bb(sc); rtwn_init_rf(sc); /* Initialize wireless band. */ rtwn_set_chan(sc, ic->ic_curchan); /* Clear per-station keys table. */ rtwn_init_cam(sc); /* Enable decryption / encryption. */ rtwn_init_seccfg(sc); /* Install static keys (if any). */ for (i = 0; i < nitems(sc->vaps); i++) { if (sc->vaps[i] != NULL) { error = rtwn_init_static_keys(sc, sc->vaps[i]); if (error != 0) goto fail; } } /* Initialize antenna selection. */ rtwn_init_antsel(sc); /* Enable hardware sequence numbering. */ rtwn_write_1(sc, R92C_HWSEQ_CTRL, R92C_TX_QUEUE_ALL); /* Disable BAR. */ rtwn_write_4(sc, R92C_BAR_MODE_CTRL, 0x0201ffff); /* NAV limit. */ rtwn_write_1(sc, R92C_NAV_UPPER, 0); /* Initialize GPIO setting. */ rtwn_setbits_1(sc, R92C_GPIO_MUXCFG, R92C_GPIO_MUXCFG_ENBT, 0); /* Initialize MRR. */ rtwn_mrr_init(sc); /* Device-specific post initialization. */ rtwn_post_init(sc); rtwn_start_xfers(sc); #ifndef D4054 callout_reset(&sc->sc_watchdog_to, hz, rtwn_watchdog, sc); #endif sc->sc_flags |= RTWN_RUNNING; fail: RTWN_UNLOCK(sc); return (error); } static void rtwn_stop(struct rtwn_softc *sc) { RTWN_LOCK(sc); if (!(sc->sc_flags & RTWN_STARTED)) { RTWN_UNLOCK(sc); return; } #ifndef D4054 callout_stop(&sc->sc_watchdog_to); sc->sc_tx_timer = 0; #endif sc->sc_flags &= ~(RTWN_STARTED | RTWN_RUNNING | RTWN_FW_LOADED); sc->sc_flags &= ~RTWN_TEMP_MEASURED; sc->fwver = 0; sc->thcal_temp = 0; sc->cur_bcnq_id = RTWN_VAP_ID_INVALID; bzero(&sc->last_physt, sizeof(sc->last_physt)); #ifdef D4054 ieee80211_tx_watchdog_stop(&sc->sc_ic); #endif rtwn_abort_xfers(sc); rtwn_drain_mbufq(sc); rtwn_power_off(sc); rtwn_reset_lists(sc, NULL); RTWN_UNLOCK(sc); } MODULE_VERSION(rtwn, 2); MODULE_DEPEND(rtwn, wlan, 1, 1, 1); #ifndef RTWN_WITHOUT_UCODE MODULE_DEPEND(rtwn, firmware, 1, 1, 1); #endif