diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 1805 |
1 files changed, 812 insertions, 993 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 4a00806e285..62ac95d6bb9 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -19,7 +19,10 @@ #include "ath9k.h" #include "btcoex.h" -static u8 parse_mpdudensity(u8 mpdudensity) +static void ath9k_set_assoc_state(struct ath_softc *sc, + struct ieee80211_vif *vif); + +u8 ath9k_parse_mpdudensity(u8 mpdudensity) { /* * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": @@ -79,6 +82,22 @@ static bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode) return ret; } +void ath_ps_full_sleep(unsigned long data) +{ + struct ath_softc *sc = (struct ath_softc *) data; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + bool reset; + + spin_lock(&common->cc_lock); + ath_hw_cycle_counters_update(common); + spin_unlock(&common->cc_lock); + + ath9k_hw_setrxabort(sc->sc_ah, 1); + ath9k_hw_stopdmarecv(sc->sc_ah, &reset); + + ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP); +} + void ath9k_ps_wakeup(struct ath_softc *sc) { struct ath_common *common = ath9k_hw_common(sc->sc_ah); @@ -89,6 +108,7 @@ void ath9k_ps_wakeup(struct ath_softc *sc) if (++sc->ps_usecount != 1) goto unlock; + del_timer_sync(&sc->sleep_timer); power_mode = sc->sc_ah->power_mode; ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); @@ -101,6 +121,7 @@ void ath9k_ps_wakeup(struct ath_softc *sc) spin_lock(&common->cc_lock); ath_hw_cycle_counters_update(common); memset(&common->cc_survey, 0, sizeof(common->cc_survey)); + memset(&common->cc_ani, 0, sizeof(common->cc_ani)); spin_unlock(&common->cc_lock); } @@ -118,16 +139,23 @@ void ath9k_ps_restore(struct ath_softc *sc) if (--sc->ps_usecount != 0) goto unlock; - if (sc->ps_idle && (sc->ps_flags & PS_WAIT_FOR_TX_ACK)) - mode = ATH9K_PM_FULL_SLEEP; - else if (sc->ps_enabled && - !(sc->ps_flags & (PS_WAIT_FOR_BEACON | - PS_WAIT_FOR_CAB | - PS_WAIT_FOR_PSPOLL_DATA | - PS_WAIT_FOR_TX_ACK))) + if (sc->ps_idle) { + mod_timer(&sc->sleep_timer, jiffies + HZ / 10); + goto unlock; + } + + if (sc->ps_enabled && + !(sc->ps_flags & (PS_WAIT_FOR_BEACON | + PS_WAIT_FOR_CAB | + PS_WAIT_FOR_PSPOLL_DATA | + PS_WAIT_FOR_TX_ACK | + PS_WAIT_FOR_ANI))) { mode = ATH9K_PM_NETWORK_SLEEP; - else + if (ath9k_hw_btcoex_is_enabled(sc->sc_ah)) + ath9k_btcoex_stop_gen_timer(sc); + } else { goto unlock; + } spin_lock(&common->cc_lock); ath_hw_cycle_counters_update(common); @@ -139,125 +167,50 @@ void ath9k_ps_restore(struct ath_softc *sc) spin_unlock_irqrestore(&sc->sc_pm_lock, flags); } -void ath_start_ani(struct ath_common *common) -{ - struct ath_hw *ah = common->ah; - unsigned long timestamp = jiffies_to_msecs(jiffies); - struct ath_softc *sc = (struct ath_softc *) common->priv; - - if (!(sc->sc_flags & SC_OP_ANI_RUN)) - return; - - if (sc->sc_flags & SC_OP_OFFCHANNEL) - return; - - common->ani.longcal_timer = timestamp; - common->ani.shortcal_timer = timestamp; - common->ani.checkani_timer = timestamp; - - mod_timer(&common->ani.timer, - jiffies + - msecs_to_jiffies((u32)ah->config.ani_poll_interval)); -} - -static void ath_update_survey_nf(struct ath_softc *sc, int channel) -{ - struct ath_hw *ah = sc->sc_ah; - struct ath9k_channel *chan = &ah->channels[channel]; - struct survey_info *survey = &sc->survey[channel]; - - if (chan->noisefloor) { - survey->filled |= SURVEY_INFO_NOISE_DBM; - survey->noise = ath9k_hw_getchan_noise(ah, chan); - } -} - -/* - * Updates the survey statistics and returns the busy time since last - * update in %, if the measurement duration was long enough for the - * result to be useful, -1 otherwise. - */ -static int ath_update_survey_stats(struct ath_softc *sc) -{ - struct ath_hw *ah = sc->sc_ah; - struct ath_common *common = ath9k_hw_common(ah); - int pos = ah->curchan - &ah->channels[0]; - struct survey_info *survey = &sc->survey[pos]; - struct ath_cycle_counters *cc = &common->cc_survey; - unsigned int div = common->clockrate * 1000; - int ret = 0; - - if (!ah->curchan) - return -1; - - if (ah->power_mode == ATH9K_PM_AWAKE) - ath_hw_cycle_counters_update(common); - - if (cc->cycles > 0) { - survey->filled |= SURVEY_INFO_CHANNEL_TIME | - SURVEY_INFO_CHANNEL_TIME_BUSY | - SURVEY_INFO_CHANNEL_TIME_RX | - SURVEY_INFO_CHANNEL_TIME_TX; - survey->channel_time += cc->cycles / div; - survey->channel_time_busy += cc->rx_busy / div; - survey->channel_time_rx += cc->rx_frame / div; - survey->channel_time_tx += cc->tx_frame / div; - } - - if (cc->cycles < div) - return -1; - - if (cc->cycles > 0) - ret = cc->rx_busy * 100 / cc->cycles; - - memset(cc, 0, sizeof(*cc)); - - ath_update_survey_nf(sc, pos); - - return ret; -} - static void __ath_cancel_work(struct ath_softc *sc) { cancel_work_sync(&sc->paprd_work); - cancel_work_sync(&sc->hw_check_work); cancel_delayed_work_sync(&sc->tx_complete_work); cancel_delayed_work_sync(&sc->hw_pll_work); + +#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT + if (ath9k_hw_mci_is_enabled(sc->sc_ah)) + cancel_work_sync(&sc->mci_work); +#endif } -static void ath_cancel_work(struct ath_softc *sc) +void ath_cancel_work(struct ath_softc *sc) { __ath_cancel_work(sc); cancel_work_sync(&sc->hw_reset_work); } -static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx, bool flush) +void ath_restart_work(struct ath_softc *sc) { - struct ath_hw *ah = sc->sc_ah; - struct ath_common *common = ath9k_hw_common(ah); - bool ret; + ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); - ieee80211_stop_queues(sc->hw); + if (AR_SREV_9340(sc->sc_ah) || AR_SREV_9330(sc->sc_ah)) + ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work, + msecs_to_jiffies(ATH_PLL_WORK_INTERVAL)); - sc->hw_busy_count = 0; - del_timer_sync(&common->ani.timer); + ath_start_ani(sc); +} - ath9k_debug_samp_bb_mac(sc); +static bool ath_prepare_reset(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + bool ret = true; + + ieee80211_stop_queues(sc->hw); + ath_stop_ani(sc); ath9k_hw_disable_interrupts(ah); - ret = ath_drain_all_txq(sc, retry_tx); + if (!ath_drain_all_txq(sc)) + ret = false; if (!ath_stoprecv(sc)) ret = false; - if (!flush) { - if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) - ath_rx_tasklet(sc, 1, true); - ath_rx_tasklet(sc, 1, false); - } else { - ath_flushrecv(sc); - } - return ret; } @@ -265,6 +218,8 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start) { struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); + unsigned long flags; + int i; if (ath_startrecv(sc) != 0) { ath_err(common, "Unable to restart recv logic\n"); @@ -273,89 +228,95 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start) ath9k_cmn_update_txpow(ah, sc->curtxpow, sc->config.txpowlimit, &sc->curtxpow); + + clear_bit(ATH_OP_HW_RESET, &common->op_flags); ath9k_hw_set_interrupts(ah); ath9k_hw_enable_interrupts(ah); - if (!(sc->sc_flags & (SC_OP_OFFCHANNEL)) && start) { - if (sc->sc_flags & SC_OP_BEACONS) - ath_set_beacon(sc); - - ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); - ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work, HZ/2); - if (!common->disable_ani) - ath_start_ani(common); - } + if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) && start) { + if (!test_bit(ATH_OP_BEACONS, &common->op_flags)) + goto work; - if ((ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) && sc->ant_rx != 3) { - struct ath_hw_antcomb_conf div_ant_conf; - u8 lna_conf; - - ath9k_hw_antdiv_comb_conf_get(ah, &div_ant_conf); + if (ah->opmode == NL80211_IFTYPE_STATION && + test_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags)) { + spin_lock_irqsave(&sc->sc_pm_lock, flags); + sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON; + spin_unlock_irqrestore(&sc->sc_pm_lock, flags); + } else { + ath9k_set_beacon(sc); + } + work: + ath_restart_work(sc); - if (sc->ant_rx == 1) - lna_conf = ATH_ANT_DIV_COMB_LNA1; - else - lna_conf = ATH_ANT_DIV_COMB_LNA2; - div_ant_conf.main_lna_conf = lna_conf; - div_ant_conf.alt_lna_conf = lna_conf; + for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { + if (!ATH_TXQ_SETUP(sc, i)) + continue; - ath9k_hw_antdiv_comb_conf_set(ah, &div_ant_conf); + spin_lock_bh(&sc->tx.txq[i].axq_lock); + ath_txq_schedule(sc, &sc->tx.txq[i]); + spin_unlock_bh(&sc->tx.txq[i].axq_lock); + } } + sc->gtt_cnt = 0; ieee80211_wake_queues(sc->hw); + ath9k_p2p_ps_timer(sc); + return true; } -static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan, - bool retry_tx) +static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan) { struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); struct ath9k_hw_cal_data *caldata = NULL; bool fastcc = true; - bool flush = false; int r; __ath_cancel_work(sc); + tasklet_disable(&sc->intr_tq); spin_lock_bh(&sc->sc_pcu_lock); - if (!(sc->sc_flags & SC_OP_OFFCHANNEL)) { + if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) { fastcc = false; caldata = &sc->caldata; } if (!hchan) { fastcc = false; - flush = true; hchan = ah->curchan; } - if (fastcc && (ah->chip_fullsleep || - !ath9k_hw_check_alive(ah))) - fastcc = false; - - if (!ath_prepare_reset(sc, retry_tx, flush)) + if (!ath_prepare_reset(sc)) fastcc = false; ath_dbg(common, CONFIG, "Reset to %u MHz, HT40: %d fastcc: %d\n", - hchan->channel, !!(hchan->channelFlags & (CHANNEL_HT40MINUS | - CHANNEL_HT40PLUS)), - fastcc); + hchan->channel, IS_CHAN_HT40(hchan), fastcc); r = ath9k_hw_reset(ah, hchan, caldata, fastcc); if (r) { ath_err(common, "Unable to reset channel, reset status %d\n", r); + + ath9k_hw_enable_interrupts(ah); + ath9k_queue_reset(sc, RESET_TYPE_BB_HANG); + goto out; } + if (ath9k_hw_mci_is_enabled(sc->sc_ah) && + (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) + ath9k_mci_set_txpower(sc, true, false); + if (!ath_complete_reset(sc, true)) r = -EIO; out: spin_unlock_bh(&sc->sc_pcu_lock); + tasklet_enable(&sc->intr_tq); + return r; } @@ -365,273 +326,90 @@ out: * by reseting the chip. To accomplish this we must first cleanup any pending * DMA, then restart stuff. */ -static int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, - struct ath9k_channel *hchan) -{ - int r; - - if (sc->sc_flags & SC_OP_INVALID) - return -EIO; - - ath9k_ps_wakeup(sc); - - r = ath_reset_internal(sc, hchan, false); - - ath9k_ps_restore(sc); - - return r; -} - -static void ath_paprd_activate(struct ath_softc *sc) +static int ath_set_channel(struct ath_softc *sc, struct cfg80211_chan_def *chandef) { struct ath_hw *ah = sc->sc_ah; - struct ath9k_hw_cal_data *caldata = ah->caldata; - int chain; - - if (!caldata || !caldata->paprd_done) - return; - - ath9k_ps_wakeup(sc); - ar9003_paprd_enable(ah, false); - for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { - if (!(ah->txchainmask & BIT(chain))) - continue; - - ar9003_paprd_populate_single_table(ah, caldata, chain); - } - - ar9003_paprd_enable(ah, true); - ath9k_ps_restore(sc); -} - -static bool ath_paprd_send_frame(struct ath_softc *sc, struct sk_buff *skb, int chain) -{ - struct ieee80211_hw *hw = sc->hw; - struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); - struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); - struct ath_tx_control txctl; - int time_left; - - memset(&txctl, 0, sizeof(txctl)); - txctl.txq = sc->tx.txq_map[WME_AC_BE]; - - memset(tx_info, 0, sizeof(*tx_info)); - tx_info->band = hw->conf.channel->band; - tx_info->flags |= IEEE80211_TX_CTL_NO_ACK; - tx_info->control.rates[0].idx = 0; - tx_info->control.rates[0].count = 1; - tx_info->control.rates[0].flags = IEEE80211_TX_RC_MCS; - tx_info->control.rates[1].idx = -1; - - init_completion(&sc->paprd_complete); - txctl.paprd = BIT(chain); - - if (ath_tx_start(hw, skb, &txctl) != 0) { - ath_dbg(common, CALIBRATE, "PAPRD TX failed\n"); - dev_kfree_skb_any(skb); - return false; - } - - time_left = wait_for_completion_timeout(&sc->paprd_complete, - msecs_to_jiffies(ATH_PAPRD_TIMEOUT)); - - if (!time_left) - ath_dbg(common, CALIBRATE, - "Timeout waiting for paprd training on TX chain %d\n", - chain); - - return !!time_left; -} - -void ath_paprd_calibrate(struct work_struct *work) -{ - struct ath_softc *sc = container_of(work, struct ath_softc, paprd_work); struct ieee80211_hw *hw = sc->hw; - struct ath_hw *ah = sc->sc_ah; - struct ieee80211_hdr *hdr; - struct sk_buff *skb = NULL; - struct ath9k_hw_cal_data *caldata = ah->caldata; - struct ath_common *common = ath9k_hw_common(ah); - int ftype; - int chain_ok = 0; - int chain; - int len = 1800; - - if (!caldata) - return; - - ath9k_ps_wakeup(sc); + struct ath9k_channel *hchan; + struct ieee80211_channel *chan = chandef->chan; + bool offchannel; + int pos = chan->hw_value; + int old_pos = -1; + int r; - if (ar9003_paprd_init_table(ah) < 0) - goto fail_paprd; - - skb = alloc_skb(len, GFP_KERNEL); - if (!skb) - goto fail_paprd; - - skb_put(skb, len); - memset(skb->data, 0, len); - hdr = (struct ieee80211_hdr *)skb->data; - ftype = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC; - hdr->frame_control = cpu_to_le16(ftype); - hdr->duration_id = cpu_to_le16(10); - memcpy(hdr->addr1, hw->wiphy->perm_addr, ETH_ALEN); - memcpy(hdr->addr2, hw->wiphy->perm_addr, ETH_ALEN); - memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN); - - for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { - if (!(ah->txchainmask & BIT(chain))) - continue; + if (test_bit(ATH_OP_INVALID, &common->op_flags)) + return -EIO; - chain_ok = 0; + offchannel = !!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL); - ath_dbg(common, CALIBRATE, - "Sending PAPRD frame for thermal measurement on chain %d\n", - chain); - if (!ath_paprd_send_frame(sc, skb, chain)) - goto fail_paprd; + if (ah->curchan) + old_pos = ah->curchan - &ah->channels[0]; - ar9003_paprd_setup_gain_table(ah, chain); + ath_dbg(common, CONFIG, "Set channel: %d MHz width: %d\n", + chan->center_freq, chandef->width); - ath_dbg(common, CALIBRATE, - "Sending PAPRD training frame on chain %d\n", chain); - if (!ath_paprd_send_frame(sc, skb, chain)) - goto fail_paprd; + /* update survey stats for the old channel before switching */ + spin_lock_bh(&common->cc_lock); + ath_update_survey_stats(sc); + spin_unlock_bh(&common->cc_lock); - if (!ar9003_paprd_is_done(ah)) { - ath_dbg(common, CALIBRATE, - "PAPRD not yet done on chain %d\n", chain); - break; - } + ath9k_cmn_get_channel(hw, ah, chandef); - if (ar9003_paprd_create_curve(ah, caldata, chain)) { - ath_dbg(common, CALIBRATE, - "PAPRD create curve failed on chain %d\n", - chain); - break; - } + /* + * If the operating channel changes, change the survey in-use flags + * along with it. + * Reset the survey data for the new channel, unless we're switching + * back to the operating channel from an off-channel operation. + */ + if (!offchannel && sc->cur_survey != &sc->survey[pos]) { + if (sc->cur_survey) + sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE; - chain_ok = 1; - } - kfree_skb(skb); + sc->cur_survey = &sc->survey[pos]; - if (chain_ok) { - caldata->paprd_done = true; - ath_paprd_activate(sc); + memset(sc->cur_survey, 0, sizeof(struct survey_info)); + sc->cur_survey->filled |= SURVEY_INFO_IN_USE; + } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) { + memset(&sc->survey[pos], 0, sizeof(struct survey_info)); } -fail_paprd: - ath9k_ps_restore(sc); -} + hchan = &sc->sc_ah->channels[pos]; + r = ath_reset_internal(sc, hchan); + if (r) + return r; -/* - * This routine performs the periodic noise floor calibration function - * that is used to adjust and optimize the chip performance. This - * takes environmental changes (location, temperature) into account. - * When the task is complete, it reschedules itself depending on the - * appropriate interval that was calculated. - */ -void ath_ani_calibrate(unsigned long data) -{ - struct ath_softc *sc = (struct ath_softc *)data; - struct ath_hw *ah = sc->sc_ah; - struct ath_common *common = ath9k_hw_common(ah); - bool longcal = false; - bool shortcal = false; - bool aniflag = false; - unsigned int timestamp = jiffies_to_msecs(jiffies); - u32 cal_interval, short_cal_interval, long_cal_interval; - unsigned long flags; - - if (ah->caldata && ah->caldata->nfcal_interference) - long_cal_interval = ATH_LONG_CALINTERVAL_INT; - else - long_cal_interval = ATH_LONG_CALINTERVAL; - - short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? - ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; - - /* Only calibrate if awake */ - if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) - goto set_timer; - - ath9k_ps_wakeup(sc); - - /* Long calibration runs independently of short calibration. */ - if ((timestamp - common->ani.longcal_timer) >= long_cal_interval) { - longcal = true; - common->ani.longcal_timer = timestamp; - } + /* + * The most recent snapshot of channel->noisefloor for the old + * channel is only available after the hardware reset. Copy it to + * the survey stats now. + */ + if (old_pos >= 0) + ath_update_survey_nf(sc, old_pos); - /* Short calibration applies only while caldone is false */ - if (!common->ani.caldone) { - if ((timestamp - common->ani.shortcal_timer) >= short_cal_interval) { - shortcal = true; - common->ani.shortcal_timer = timestamp; - common->ani.resetcal_timer = timestamp; - } + /* + * Enable radar pulse detection if on a DFS channel. Spectral + * scanning and radar detection can not be used concurrently. + */ + if (hw->conf.radar_enabled) { + u32 rxfilter; + + /* set HW specific DFS configuration */ + ath9k_hw_set_radar_params(ah); + rxfilter = ath9k_hw_getrxfilter(ah); + rxfilter |= ATH9K_RX_FILTER_PHYRADAR | + ATH9K_RX_FILTER_PHYERR; + ath9k_hw_setrxfilter(ah, rxfilter); + ath_dbg(common, DFS, "DFS enabled at freq %d\n", + chan->center_freq); } else { - if ((timestamp - common->ani.resetcal_timer) >= - ATH_RESTART_CALINTERVAL) { - common->ani.caldone = ath9k_hw_reset_calvalid(ah); - if (common->ani.caldone) - common->ani.resetcal_timer = timestamp; - } + /* perform spectral scan if requested. */ + if (test_bit(ATH_OP_SCANNING, &common->op_flags) && + sc->spectral_mode == SPECTRAL_CHANSCAN) + ath9k_spectral_scan_trigger(hw); } - /* Verify whether we must check ANI */ - if (sc->sc_ah->config.enable_ani - && (timestamp - common->ani.checkani_timer) >= - ah->config.ani_poll_interval) { - aniflag = true; - common->ani.checkani_timer = timestamp; - } - - /* Call ANI routine if necessary */ - if (aniflag) { - spin_lock_irqsave(&common->cc_lock, flags); - ath9k_hw_ani_monitor(ah, ah->curchan); - ath_update_survey_stats(sc); - spin_unlock_irqrestore(&common->cc_lock, flags); - } - - /* Perform calibration if necessary */ - if (longcal || shortcal) { - common->ani.caldone = - ath9k_hw_calibrate(ah, ah->curchan, - ah->rxchainmask, longcal); - } - - ath_dbg(common, ANI, - "Calibration @%lu finished: %s %s %s, caldone: %s\n", - jiffies, - longcal ? "long" : "", shortcal ? "short" : "", - aniflag ? "ani" : "", common->ani.caldone ? "true" : "false"); - - ath9k_ps_restore(sc); - -set_timer: - /* - * Set timer interval based on previous results. - * The interval must be the shortest necessary to satisfy ANI, - * short calibration and long calibration. - */ - ath9k_debug_samp_bb_mac(sc); - cal_interval = ATH_LONG_CALINTERVAL; - if (sc->sc_ah->config.enable_ani) - cal_interval = min(cal_interval, - (u32)ah->config.ani_poll_interval); - if (!common->ani.caldone) - cal_interval = min(cal_interval, (u32)short_cal_interval); - - mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies(cal_interval)); - if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && ah->caldata) { - if (!ah->caldata->paprd_done) - ieee80211_queue_work(sc->hw, &sc->paprd_work); - else if (!ah->paprd_table_write_done) - ath_paprd_activate(sc); - } + return 0; } static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta, @@ -640,76 +418,82 @@ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta, struct ath_node *an; an = (struct ath_node *)sta->drv_priv; -#ifdef CONFIG_ATH9K_DEBUGFS - spin_lock(&sc->nodes_lock); - list_add(&an->list, &sc->nodes); - spin_unlock(&sc->nodes_lock); -#endif + an->sc = sc; an->sta = sta; an->vif = vif; - if (sc->sc_flags & SC_OP_TXAGGR) { - ath_tx_node_init(sc, an); - an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + - sta->ht_cap.ampdu_factor); - an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density); - } + memset(&an->key_idx, 0, sizeof(an->key_idx)); + + ath_tx_node_init(sc, an); } static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) { struct ath_node *an = (struct ath_node *)sta->drv_priv; - -#ifdef CONFIG_ATH9K_DEBUGFS - spin_lock(&sc->nodes_lock); - list_del(&an->list); - spin_unlock(&sc->nodes_lock); - an->sta = NULL; -#endif - - if (sc->sc_flags & SC_OP_TXAGGR) - ath_tx_node_cleanup(sc, an); + ath_tx_node_cleanup(sc, an); } - void ath9k_tasklet(unsigned long data) { struct ath_softc *sc = (struct ath_softc *)data; struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); - + enum ath_reset_type type; + unsigned long flags; u32 status = sc->intrstatus; u32 rxmask; ath9k_ps_wakeup(sc); spin_lock(&sc->sc_pcu_lock); - if ((status & ATH9K_INT_FATAL) || + if (status & ATH9K_INT_FATAL) { + type = RESET_TYPE_FATAL_INT; + ath9k_queue_reset(sc, type); + + /* + * Increment the ref. counter here so that + * interrupts are enabled in the reset routine. + */ + atomic_inc(&ah->intr_ref_cnt); + ath_dbg(common, RESET, "FATAL: Skipping interrupts\n"); + goto out; + } + + if ((ah->config.hw_hang_checks & HW_BB_WATCHDOG) && (status & ATH9K_INT_BB_WATCHDOG)) { -#ifdef CONFIG_ATH9K_DEBUGFS - enum ath_reset_type type; + spin_lock(&common->cc_lock); + ath_hw_cycle_counters_update(common); + ar9003_hw_bb_watchdog_dbg_info(ah); + spin_unlock(&common->cc_lock); - if (status & ATH9K_INT_FATAL) - type = RESET_TYPE_FATAL_INT; - else + if (ar9003_hw_bb_watchdog_check(ah)) { type = RESET_TYPE_BB_WATCHDOG; + ath9k_queue_reset(sc, type); - RESET_STAT_INC(sc, type); -#endif - ieee80211_queue_work(sc->hw, &sc->hw_reset_work); - goto out; + /* + * Increment the ref. counter here so that + * interrupts are enabled in the reset routine. + */ + atomic_inc(&ah->intr_ref_cnt); + ath_dbg(common, RESET, + "BB_WATCHDOG: Skipping interrupts\n"); + goto out; + } } - /* - * Only run the baseband hang check if beacons stop working in AP or - * IBSS mode, because it has a high false positive rate. For station - * mode it should not be necessary, since the upper layers will detect - * this through a beacon miss automatically and the following channel - * change will trigger a hardware reset anyway - */ - if (ath9k_hw_numtxpending(ah, sc->beacon.beaconq) != 0 && - !ath9k_hw_check_alive(ah)) - ieee80211_queue_work(sc->hw, &sc->hw_check_work); + if (status & ATH9K_INT_GTT) { + sc->gtt_cnt++; + + if ((sc->gtt_cnt >= MAX_GTT_CNT) && !ath9k_hw_check_alive(ah)) { + type = RESET_TYPE_TX_GTT; + ath9k_queue_reset(sc, type); + atomic_inc(&ah->intr_ref_cnt); + ath_dbg(common, RESET, + "GTT: Skipping interrupts\n"); + goto out; + } + } + spin_lock_irqsave(&sc->sc_pm_lock, flags); if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) { /* * TSF sync does not look correct; remain awake to sync with @@ -718,6 +502,7 @@ void ath9k_tasklet(unsigned long data) ath_dbg(common, PS, "TSFOOR - Sync with next Beacon\n"); sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC; } + spin_unlock_irqrestore(&sc->sc_pm_lock, flags); if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL | @@ -735,23 +520,31 @@ void ath9k_tasklet(unsigned long data) } if (status & ATH9K_INT_TX) { - if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) + if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { + /* + * For EDMA chips, TX completion is enabled for the + * beacon queue, so if a beacon has been transmitted + * successfully after a GTT interrupt, the GTT counter + * gets reset to zero here. + */ + sc->gtt_cnt = 0; + ath_tx_edma_tasklet(sc); - else + } else { ath_tx_tasklet(sc); + } + + wake_up(&sc->tx_wait); } - if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) - if (status & ATH9K_INT_GENTIMER) - ath_gen_timer_isr(sc->sc_ah); + if (status & ATH9K_INT_GENTIMER) + ath_gen_timer_isr(sc->sc_ah); - if ((status & ATH9K_INT_MCI) && ATH9K_HW_CAP_MCI) - ath_mci_intr(sc); + ath9k_btcoex_handle_interrupt(sc, status); -out: /* re-enable hardware interrupt */ ath9k_hw_enable_interrupts(ah); - +out: spin_unlock(&sc->sc_pcu_lock); ath9k_ps_restore(sc); } @@ -769,6 +562,7 @@ irqreturn_t ath_isr(int irq, void *dev) ATH9K_INT_TX | \ ATH9K_INT_BMISS | \ ATH9K_INT_CST | \ + ATH9K_INT_GTT | \ ATH9K_INT_TSFOOR | \ ATH9K_INT_GENTIMER | \ ATH9K_INT_MCI) @@ -777,6 +571,7 @@ irqreturn_t ath_isr(int irq, void *dev) struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); enum ath9k_int status; + u32 sync_cause = 0; bool sched = false; /* @@ -784,22 +579,27 @@ irqreturn_t ath_isr(int irq, void *dev) * touch anything. Note this can happen early * on if the IRQ is shared. */ - if (sc->sc_flags & SC_OP_INVALID) + if (test_bit(ATH_OP_INVALID, &common->op_flags)) return IRQ_NONE; - /* shared irq, not for us */ if (!ath9k_hw_intrpend(ah)) return IRQ_NONE; + if (test_bit(ATH_OP_HW_RESET, &common->op_flags)) { + ath9k_hw_kill_interrupts(ah); + return IRQ_HANDLED; + } + /* * Figure out the reason(s) for the interrupt. Note * that the hal returns a pseudo-ISR that may include * bits we haven't explicitly enabled so we mask the * value to insure we only process bits we requested. */ - ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ + ath9k_hw_getisr(ah, &status, &sync_cause); /* NB: clears ISR too */ + ath9k_debug_sync_cause(sc, sync_cause); status &= ah->imask; /* discard unasked-for bits */ /* @@ -823,16 +623,18 @@ irqreturn_t ath_isr(int irq, void *dev) !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA))) goto chip_reset; - if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) && - (status & ATH9K_INT_BB_WATCHDOG)) { - - spin_lock(&common->cc_lock); - ath_hw_cycle_counters_update(common); - ar9003_hw_bb_watchdog_dbg_info(ah); - spin_unlock(&common->cc_lock); - + if ((ah->config.hw_hang_checks & HW_BB_WATCHDOG) && + (status & ATH9K_INT_BB_WATCHDOG)) goto chip_reset; + +#ifdef CONFIG_ATH9K_WOW + if (status & ATH9K_INT_BMISS) { + if (atomic_read(&sc->wow_sleep_proc_intr) == 0) { + atomic_inc(&sc->wow_got_bmiss_intr); + atomic_dec(&sc->wow_sleep_proc_intr); + } } +#endif if (status & ATH9K_INT_SWBA) tasklet_schedule(&sc->bcon_tasklet); @@ -845,24 +647,6 @@ irqreturn_t ath_isr(int irq, void *dev) ath9k_hw_set_interrupts(ah); } - if (status & ATH9K_INT_MIB) { - /* - * Disable interrupts until we service the MIB - * interrupt; otherwise it will continue to - * fire. - */ - ath9k_hw_disable_interrupts(ah); - /* - * Let the hal handle the event. We assume - * it will clear whatever condition caused - * the interrupt. - */ - spin_lock(&common->cc_lock); - ath9k_hw_proc_mib_event(ah); - spin_unlock(&common->cc_lock); - ath9k_hw_enable_interrupts(ah); - } - if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) if (status & ATH9K_INT_TIM_TIMER) { if (ATH_DBG_WARN_ON_ONCE(sc->ps_idle)) @@ -870,8 +654,10 @@ irqreturn_t ath_isr(int irq, void *dev) /* Clear RxAbort bit so that we can * receive frames */ ath9k_setpower(sc, ATH9K_PM_AWAKE); + spin_lock(&sc->sc_pm_lock); ath9k_hw_setrxabort(sc->sc_ah, 0); sc->ps_flags |= PS_WAIT_FOR_BEACON; + spin_unlock(&sc->sc_pm_lock); } chip_reset: @@ -889,101 +675,32 @@ chip_reset: #undef SCHED_INTR } -static int ath_reset(struct ath_softc *sc, bool retry_tx) +int ath_reset(struct ath_softc *sc) { int r; ath9k_ps_wakeup(sc); - - r = ath_reset_internal(sc, NULL, retry_tx); - - if (retry_tx) { - int i; - for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { - if (ATH_TXQ_SETUP(sc, i)) { - spin_lock_bh(&sc->tx.txq[i].axq_lock); - ath_txq_schedule(sc, &sc->tx.txq[i]); - spin_unlock_bh(&sc->tx.txq[i].axq_lock); - } - } - } - + r = ath_reset_internal(sc, NULL); ath9k_ps_restore(sc); return r; } -void ath_reset_work(struct work_struct *work) -{ - struct ath_softc *sc = container_of(work, struct ath_softc, hw_reset_work); - - ath_reset(sc, true); -} - -void ath_hw_check(struct work_struct *work) +void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type) { - struct ath_softc *sc = container_of(work, struct ath_softc, hw_check_work); struct ath_common *common = ath9k_hw_common(sc->sc_ah); - unsigned long flags; - int busy; - - ath9k_ps_wakeup(sc); - if (ath9k_hw_check_alive(sc->sc_ah)) - goto out; - - spin_lock_irqsave(&common->cc_lock, flags); - busy = ath_update_survey_stats(sc); - spin_unlock_irqrestore(&common->cc_lock, flags); - - ath_dbg(common, RESET, "Possible baseband hang, busy=%d (try %d)\n", - busy, sc->hw_busy_count + 1); - if (busy >= 99) { - if (++sc->hw_busy_count >= 3) { - RESET_STAT_INC(sc, RESET_TYPE_BB_HANG); - ieee80211_queue_work(sc->hw, &sc->hw_reset_work); - } - - } else if (busy >= 0) - sc->hw_busy_count = 0; - -out: - ath9k_ps_restore(sc); -} - -static void ath_hw_pll_rx_hang_check(struct ath_softc *sc, u32 pll_sqsum) -{ - static int count; - struct ath_common *common = ath9k_hw_common(sc->sc_ah); - - if (pll_sqsum >= 0x40000) { - count++; - if (count == 3) { - /* Rx is hung for more than 500ms. Reset it */ - ath_dbg(common, RESET, "Possible RX hang, resetting\n"); - RESET_STAT_INC(sc, RESET_TYPE_PLL_HANG); - ieee80211_queue_work(sc->hw, &sc->hw_reset_work); - count = 0; - } - } else - count = 0; +#ifdef CONFIG_ATH9K_DEBUGFS + RESET_STAT_INC(sc, type); +#endif + set_bit(ATH_OP_HW_RESET, &common->op_flags); + ieee80211_queue_work(sc->hw, &sc->hw_reset_work); } -void ath_hw_pll_work(struct work_struct *work) +void ath_reset_work(struct work_struct *work) { - struct ath_softc *sc = container_of(work, struct ath_softc, - hw_pll_work.work); - u32 pll_sqsum; - - if (AR_SREV_9485(sc->sc_ah)) { - - ath9k_ps_wakeup(sc); - pll_sqsum = ar9003_get_pll_sqsum_dvc(sc->sc_ah); - ath9k_ps_restore(sc); - - ath_hw_pll_rx_hang_check(sc, pll_sqsum); + struct ath_softc *sc = container_of(work, struct ath_softc, hw_reset_work); - ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work, HZ/5); - } + ath_reset(sc); } /**********************/ @@ -995,7 +712,7 @@ static int ath9k_start(struct ieee80211_hw *hw) struct ath_softc *sc = hw->priv; struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); - struct ieee80211_channel *curchan = hw->conf.channel; + struct ieee80211_channel *curchan = hw->conf.chandef.chan; struct ath9k_channel *init_channel; int r; @@ -1004,13 +721,9 @@ static int ath9k_start(struct ieee80211_hw *hw) curchan->center_freq); ath9k_ps_wakeup(sc); - mutex_lock(&sc->mutex); - /* setup initial channel */ - sc->chan_idx = curchan->hw_value; - - init_channel = ath9k_cmn_get_curchannel(hw, ah); + init_channel = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef); /* Reset SERDES registers */ ath9k_hw_configpcipowersave(ah, false); @@ -1031,8 +744,7 @@ static int ath9k_start(struct ieee80211_hw *hw) ath_err(common, "Unable to reset hardware; reset status %d (freq %u MHz)\n", r, curchan->center_freq); - spin_unlock_bh(&sc->sc_pcu_lock); - goto mutex_unlock; + ah->reset_power_on = false; } /* Setup our intr mask. */ @@ -1042,30 +754,30 @@ static int ath9k_start(struct ieee80211_hw *hw) if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) ah->imask |= ATH9K_INT_RXHP | - ATH9K_INT_RXLP | - ATH9K_INT_BB_WATCHDOG; + ATH9K_INT_RXLP; else ah->imask |= ATH9K_INT_RX; - ah->imask |= ATH9K_INT_GTT; + if (ah->config.hw_hang_checks & HW_BB_WATCHDOG) + ah->imask |= ATH9K_INT_BB_WATCHDOG; + + /* + * Enable GTT interrupts only for AR9003/AR9004 chips + * for now. + */ + if (AR_SREV_9300_20_OR_LATER(ah)) + ah->imask |= ATH9K_INT_GTT; if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) ah->imask |= ATH9K_INT_CST; - if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) - ah->imask |= ATH9K_INT_MCI; + ath_mci_enable(sc); - sc->sc_flags &= ~SC_OP_INVALID; + clear_bit(ATH_OP_INVALID, &common->op_flags); sc->sc_ah->is_monitoring = false; - /* Disable BMISS interrupt when we're not associated */ - ah->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); - - if (!ath_complete_reset(sc, false)) { - r = -EIO; - spin_unlock_bh(&sc->sc_pcu_lock); - goto mutex_unlock; - } + if (!ath_complete_reset(sc, false)) + ah->reset_power_on = false; if (ah->led_pin >= 0) { ath9k_hw_cfg_output(ah, ah->led_pin, @@ -1079,36 +791,26 @@ static int ath9k_start(struct ieee80211_hw *hw) */ ath9k_cmn_init_crypto(sc->sc_ah); - spin_unlock_bh(&sc->sc_pcu_lock); + ath9k_hw_reset_tsf(ah); - if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) && - !ah->btcoex_hw.enabled) { - if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) - ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, - AR_STOMP_LOW_WLAN_WGHT); - ath9k_hw_btcoex_enable(ah); - - if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) - ath9k_btcoex_timer_resume(sc); - } - - if (ah->caps.pcie_lcr_extsync_en && common->bus_ops->extn_synch_en) - common->bus_ops->extn_synch_en(common); + spin_unlock_bh(&sc->sc_pcu_lock); -mutex_unlock: mutex_unlock(&sc->mutex); ath9k_ps_restore(sc); - return r; + return 0; } -static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) +static void ath9k_tx(struct ieee80211_hw *hw, + struct ieee80211_tx_control *control, + struct sk_buff *skb) { struct ath_softc *sc = hw->priv; struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_tx_control txctl; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + unsigned long flags; if (sc->ps_enabled) { /* @@ -1124,20 +826,14 @@ static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) } } - /* - * Cannot tx while the hardware is in full sleep, it first needs a full - * chip reset to recover from that - */ - if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_FULL_SLEEP)) - goto exit; - - if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) { + if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP)) { /* * We are using PS-Poll and mac80211 can request TX while in * power save mode. Need to wake up hardware for the TX to be * completed and if needed, also for RX of buffered frames. */ ath9k_ps_wakeup(sc); + spin_lock_irqsave(&sc->sc_pm_lock, flags); if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) ath9k_hw_setrxabort(sc->sc_ah, 0); if (ieee80211_is_pspoll(hdr->frame_control)) { @@ -1150,25 +846,37 @@ static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) } /* * The actual restore operation will happen only after - * the sc_flags bit is cleared. We are just dropping + * the ps_flags bit is cleared. We are just dropping * the ps_usecount here. */ + spin_unlock_irqrestore(&sc->sc_pm_lock, flags); ath9k_ps_restore(sc); } + /* + * Cannot tx while the hardware is in full sleep, it first needs a full + * chip reset to recover from that + */ + if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_FULL_SLEEP)) { + ath_err(common, "TX while HW is in FULL_SLEEP mode\n"); + goto exit; + } + memset(&txctl, 0, sizeof(struct ath_tx_control)); txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)]; + txctl.sta = control->sta; ath_dbg(common, XMIT, "transmitting packet, skb: %p\n", skb); if (ath_tx_start(hw, skb, &txctl) != 0) { ath_dbg(common, XMIT, "TX failed\n"); + TX_STAT_INC(txctl.txq->axq_qnum, txfailed); goto exit; } return; exit: - dev_kfree_skb_any(skb); + ieee80211_free_txskb(hw, skb); } static void ath9k_stop(struct ieee80211_hw *hw) @@ -1182,7 +890,7 @@ static void ath9k_stop(struct ieee80211_hw *hw) ath_cancel_work(sc); - if (sc->sc_flags & SC_OP_INVALID) { + if (test_bit(ATH_OP_INVALID, &common->op_flags)) { ath_dbg(common, ANY, "Device not present\n"); mutex_unlock(&sc->mutex); return; @@ -1191,14 +899,6 @@ static void ath9k_stop(struct ieee80211_hw *hw) /* Ensure HW is awake when we try to shut it down. */ ath9k_ps_wakeup(sc); - if (ah->btcoex_hw.enabled && - ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) { - ath9k_hw_btcoex_disable(ah); - if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) - ath9k_btcoex_timer_pause(sc); - ath_mci_flush_profile(&sc->btcoex.mci); - } - spin_lock_bh(&sc->sc_pcu_lock); /* prevent tasklets to enable interrupts once we disable them */ @@ -1226,7 +926,7 @@ static void ath9k_stop(struct ieee80211_hw *hw) ath9k_hw_cfg_gpio_input(ah, ah->led_pin); } - ath_prepare_reset(sc, false, true); + ath_prepare_reset(sc); if (sc->rx.frag) { dev_kfree_skb_any(sc->rx.frag); @@ -1234,7 +934,7 @@ static void ath9k_stop(struct ieee80211_hw *hw) } if (!ah->curchan) - ah->curchan = ath9k_cmn_get_curchannel(hw, ah); + ah->curchan = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef); ath9k_hw_reset(ah, ah->curchan, ah->caldata, false); ath9k_hw_phy_disable(ah); @@ -1245,7 +945,7 @@ static void ath9k_stop(struct ieee80211_hw *hw) ath9k_ps_restore(sc); - sc->sc_flags |= SC_OP_INVALID; + set_bit(ATH_OP_INVALID, &common->op_flags); sc->ps_idle = prev_idle; mutex_unlock(&sc->mutex); @@ -1253,7 +953,7 @@ static void ath9k_stop(struct ieee80211_hw *hw) ath_dbg(common, CONFIG, "Driver halt\n"); } -bool ath9k_uses_beacons(int type) +static bool ath9k_uses_beacons(int type) { switch (type) { case NL80211_IFTYPE_AP: @@ -1265,26 +965,19 @@ bool ath9k_uses_beacons(int type) } } -static void ath9k_reclaim_beacon(struct ath_softc *sc, - struct ieee80211_vif *vif) -{ - struct ath_vif *avp = (void *)vif->drv_priv; - - ath9k_set_beaconing_status(sc, false); - ath_beacon_return(sc, avp); - ath9k_set_beaconing_status(sc, true); - sc->sc_flags &= ~SC_OP_BEACONS; -} - static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif) { struct ath9k_vif_iter_data *iter_data = data; int i; - if (iter_data->hw_macaddr) + if (iter_data->has_hw_macaddr) { for (i = 0; i < ETH_ALEN; i++) iter_data->mask[i] &= ~(iter_data->hw_macaddr[i] ^ mac[i]); + } else { + memcpy(iter_data->hw_macaddr, mac, ETH_ALEN); + iter_data->has_hw_macaddr = true; + } switch (vif->type) { case NL80211_IFTYPE_AP: @@ -1303,11 +996,22 @@ static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif) iter_data->nwds++; break; default: - iter_data->nothers++; break; } } +static void ath9k_sta_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif) +{ + struct ath_softc *sc = data; + struct ath_vif *avp = (void *)vif->drv_priv; + + if (vif->type != NL80211_IFTYPE_STATION) + return; + + if (avp->primary_sta_vif) + ath9k_set_assoc_state(sc, vif); +} + /* Called with sc->mutex held. */ void ath9k_calculate_iter_data(struct ieee80211_hw *hw, struct ieee80211_vif *vif, @@ -1318,19 +1022,22 @@ void ath9k_calculate_iter_data(struct ieee80211_hw *hw, struct ath_common *common = ath9k_hw_common(ah); /* - * Use the hardware MAC address as reference, the hardware uses it - * together with the BSSID mask when matching addresses. + * Pick the MAC address of the first interface as the new hardware + * MAC address. The hardware will use it together with the BSSID mask + * when matching addresses. */ memset(iter_data, 0, sizeof(*iter_data)); - iter_data->hw_macaddr = common->macaddr; memset(&iter_data->mask, 0xff, ETH_ALEN); if (vif) ath9k_vif_iter(iter_data, vif->addr, vif); /* Get list of all active MAC addresses */ - ieee80211_iterate_active_interfaces_atomic(sc->hw, ath9k_vif_iter, - iter_data); + ieee80211_iterate_active_interfaces_atomic( + sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL, + ath9k_vif_iter, iter_data); + + memcpy(common->macaddr, iter_data->hw_macaddr, ETH_ALEN); } /* Called with sc->mutex held. */ @@ -1341,21 +1048,18 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw, struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); struct ath9k_vif_iter_data iter_data; + enum nl80211_iftype old_opmode = ah->opmode; ath9k_calculate_iter_data(hw, vif, &iter_data); - /* Set BSSID mask. */ memcpy(common->bssidmask, iter_data.mask, ETH_ALEN); ath_hw_setbssidmask(common); - /* Set op-mode & TSF */ if (iter_data.naps > 0) { - ath9k_hw_set_tsfadjust(ah, 1); - sc->sc_flags |= SC_OP_TSF_RESET; + ath9k_hw_set_tsfadjust(ah, true); ah->opmode = NL80211_IFTYPE_AP; } else { - ath9k_hw_set_tsfadjust(ah, 0); - sc->sc_flags &= ~SC_OP_TSF_RESET; + ath9k_hw_set_tsfadjust(ah, false); if (iter_data.nmeshes) ah->opmode = NL80211_IFTYPE_MESH_POINT; @@ -1367,113 +1071,67 @@ static void ath9k_calculate_summary_state(struct ieee80211_hw *hw, ah->opmode = NL80211_IFTYPE_STATION; } - /* - * Enable MIB interrupts when there are hardware phy counters. - */ - if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0) { - if (ah->config.enable_ani) - ah->imask |= ATH9K_INT_MIB; + ath9k_hw_setopmode(ah); + + if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0) ah->imask |= ATH9K_INT_TSFOOR; - } else { - ah->imask &= ~ATH9K_INT_MIB; + else ah->imask &= ~ATH9K_INT_TSFOOR; - } ath9k_hw_set_interrupts(ah); - /* Set up ANI */ - if (iter_data.naps > 0) { - sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER; - - if (!common->disable_ani) { - sc->sc_flags |= SC_OP_ANI_RUN; - ath_start_ani(common); - } - - } else { - sc->sc_flags &= ~SC_OP_ANI_RUN; - del_timer_sync(&common->ani.timer); - } -} - -/* Called with sc->mutex held, vif counts set up properly. */ -static void ath9k_do_vif_add_setup(struct ieee80211_hw *hw, - struct ieee80211_vif *vif) -{ - struct ath_softc *sc = hw->priv; - - ath9k_calculate_summary_state(hw, vif); - - if (ath9k_uses_beacons(vif->type)) { - int error; - /* This may fail because upper levels do not have beacons - * properly configured yet. That's OK, we assume it - * will be properly configured and then we will be notified - * in the info_changed method and set up beacons properly - * there. - */ - ath9k_set_beaconing_status(sc, false); - error = ath_beacon_alloc(sc, vif); - if (!error) - ath_beacon_config(sc, vif); - ath9k_set_beaconing_status(sc, true); + /* + * If we are changing the opmode to STATION, + * a beacon sync needs to be done. + */ + if (ah->opmode == NL80211_IFTYPE_STATION && + old_opmode == NL80211_IFTYPE_AP && + test_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags)) { + ieee80211_iterate_active_interfaces_atomic( + sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL, + ath9k_sta_vif_iter, sc); } } - static int ath9k_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct ath_softc *sc = hw->priv; struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); - int ret = 0; + struct ath_vif *avp = (void *)vif->drv_priv; + struct ath_node *an = &avp->mcast_node; - ath9k_ps_wakeup(sc); mutex_lock(&sc->mutex); - switch (vif->type) { - case NL80211_IFTYPE_STATION: - case NL80211_IFTYPE_WDS: - case NL80211_IFTYPE_ADHOC: - case NL80211_IFTYPE_AP: - case NL80211_IFTYPE_MESH_POINT: - break; - default: - ath_err(common, "Interface type %d not yet supported\n", - vif->type); - ret = -EOPNOTSUPP; - goto out; - } - - if (ath9k_uses_beacons(vif->type)) { - if (sc->nbcnvifs >= ATH_BCBUF) { - ath_err(common, "Not enough beacon buffers when adding" - " new interface of type: %i\n", - vif->type); - ret = -ENOBUFS; - goto out; + if (config_enabled(CONFIG_ATH9K_TX99)) { + if (sc->nvifs >= 1) { + mutex_unlock(&sc->mutex); + return -EOPNOTSUPP; } - } - - if ((ah->opmode == NL80211_IFTYPE_ADHOC) || - ((vif->type == NL80211_IFTYPE_ADHOC) && - sc->nvifs > 0)) { - ath_err(common, "Cannot create ADHOC interface when other" - " interfaces already exist.\n"); - ret = -EINVAL; - goto out; + sc->tx99_vif = vif; } ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type); - sc->nvifs++; - ath9k_do_vif_add_setup(hw, vif); -out: - mutex_unlock(&sc->mutex); + ath9k_ps_wakeup(sc); + ath9k_calculate_summary_state(hw, vif); ath9k_ps_restore(sc); - return ret; + + if (ath9k_uses_beacons(vif->type)) + ath9k_beacon_assign_slot(sc, vif); + + avp->vif = vif; + + an->sc = sc; + an->sta = NULL; + an->vif = vif; + an->no_ps_filter = true; + ath_tx_node_init(sc, an); + + mutex_unlock(&sc->mutex); + return 0; } static int ath9k_change_interface(struct ieee80211_hw *hw, @@ -1483,43 +1141,54 @@ static int ath9k_change_interface(struct ieee80211_hw *hw, { struct ath_softc *sc = hw->priv; struct ath_common *common = ath9k_hw_common(sc->sc_ah); - int ret = 0; - ath_dbg(common, CONFIG, "Change Interface\n"); mutex_lock(&sc->mutex); - ath9k_ps_wakeup(sc); - /* See if new interface type is valid. */ - if ((new_type == NL80211_IFTYPE_ADHOC) && - (sc->nvifs > 1)) { - ath_err(common, "When using ADHOC, it must be the only" - " interface.\n"); - ret = -EINVAL; - goto out; + if (config_enabled(CONFIG_ATH9K_TX99)) { + mutex_unlock(&sc->mutex); + return -EOPNOTSUPP; } - if (ath9k_uses_beacons(new_type) && - !ath9k_uses_beacons(vif->type)) { - if (sc->nbcnvifs >= ATH_BCBUF) { - ath_err(common, "No beacon slot available\n"); - ret = -ENOBUFS; - goto out; - } - } + ath_dbg(common, CONFIG, "Change Interface\n"); - /* Clean up old vif stuff */ if (ath9k_uses_beacons(vif->type)) - ath9k_reclaim_beacon(sc, vif); + ath9k_beacon_remove_slot(sc, vif); - /* Add new settings */ vif->type = new_type; vif->p2p = p2p; - ath9k_do_vif_add_setup(hw, vif); -out: + ath9k_ps_wakeup(sc); + ath9k_calculate_summary_state(hw, vif); ath9k_ps_restore(sc); + + if (ath9k_uses_beacons(vif->type)) + ath9k_beacon_assign_slot(sc, vif); + mutex_unlock(&sc->mutex); - return ret; + return 0; +} + +static void +ath9k_update_p2p_ps_timer(struct ath_softc *sc, struct ath_vif *avp) +{ + struct ath_hw *ah = sc->sc_ah; + s32 tsf, target_tsf; + + if (!avp || !avp->noa.has_next_tsf) + return; + + ath9k_hw_gen_timer_stop(ah, sc->p2p_ps_timer); + + tsf = ath9k_hw_gettsf32(sc->sc_ah); + + target_tsf = avp->noa.next_tsf; + if (!avp->noa.absent) + target_tsf -= ATH_P2P_PS_STOP_TIME; + + if (target_tsf - tsf < ATH_P2P_PS_STOP_TIME) + target_tsf = tsf + ATH_P2P_PS_STOP_TIME; + + ath9k_hw_gen_timer_start(ah, sc->p2p_ps_timer, (u32) target_tsf, 1000000); } static void ath9k_remove_interface(struct ieee80211_hw *hw, @@ -1527,27 +1196,41 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, { struct ath_softc *sc = hw->priv; struct ath_common *common = ath9k_hw_common(sc->sc_ah); + struct ath_vif *avp = (void *)vif->drv_priv; ath_dbg(common, CONFIG, "Detach Interface\n"); - ath9k_ps_wakeup(sc); mutex_lock(&sc->mutex); + spin_lock_bh(&sc->sc_pcu_lock); + if (avp == sc->p2p_ps_vif) { + sc->p2p_ps_vif = NULL; + ath9k_update_p2p_ps_timer(sc, NULL); + } + spin_unlock_bh(&sc->sc_pcu_lock); + sc->nvifs--; + sc->tx99_vif = NULL; - /* Reclaim beacon resources */ if (ath9k_uses_beacons(vif->type)) - ath9k_reclaim_beacon(sc, vif); + ath9k_beacon_remove_slot(sc, vif); + ath9k_ps_wakeup(sc); ath9k_calculate_summary_state(hw, NULL); + ath9k_ps_restore(sc); + + ath_tx_node_cleanup(sc, &avp->mcast_node); mutex_unlock(&sc->mutex); - ath9k_ps_restore(sc); } static void ath9k_enable_ps(struct ath_softc *sc) { struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + + if (config_enabled(CONFIG_ATH9K_TX99)) + return; sc->ps_enabled = true; if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { @@ -1557,11 +1240,16 @@ static void ath9k_enable_ps(struct ath_softc *sc) } ath9k_hw_setrxabort(ah, 1); } + ath_dbg(common, PS, "PowerSave enabled\n"); } static void ath9k_disable_ps(struct ath_softc *sc) { struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + + if (config_enabled(CONFIG_ATH9K_TX99)) + return; sc->ps_enabled = false; ath9k_hw_setpower(ah, ATH9K_PM_AWAKE); @@ -1576,7 +1264,79 @@ static void ath9k_disable_ps(struct ath_softc *sc) ath9k_hw_set_interrupts(ah); } } + ath_dbg(common, PS, "PowerSave disabled\n"); +} + +void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw) +{ + struct ath_softc *sc = hw->priv; + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + u32 rxfilter; + + if (config_enabled(CONFIG_ATH9K_TX99)) + return; + + if (!ath9k_hw_ops(ah)->spectral_scan_trigger) { + ath_err(common, "spectrum analyzer not implemented on this hardware\n"); + return; + } + + ath9k_ps_wakeup(sc); + rxfilter = ath9k_hw_getrxfilter(ah); + ath9k_hw_setrxfilter(ah, rxfilter | + ATH9K_RX_FILTER_PHYRADAR | + ATH9K_RX_FILTER_PHYERR); + + /* TODO: usually this should not be neccesary, but for some reason + * (or in some mode?) the trigger must be called after the + * configuration, otherwise the register will have its values reset + * (on my ar9220 to value 0x01002310) + */ + ath9k_spectral_scan_config(hw, sc->spectral_mode); + ath9k_hw_ops(ah)->spectral_scan_trigger(ah); + ath9k_ps_restore(sc); +} + +int ath9k_spectral_scan_config(struct ieee80211_hw *hw, + enum spectral_mode spectral_mode) +{ + struct ath_softc *sc = hw->priv; + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + + if (!ath9k_hw_ops(ah)->spectral_scan_trigger) { + ath_err(common, "spectrum analyzer not implemented on this hardware\n"); + return -1; + } + + switch (spectral_mode) { + case SPECTRAL_DISABLED: + sc->spec_config.enabled = 0; + break; + case SPECTRAL_BACKGROUND: + /* send endless samples. + * TODO: is this really useful for "background"? + */ + sc->spec_config.endless = 1; + sc->spec_config.enabled = 1; + break; + case SPECTRAL_CHANSCAN: + case SPECTRAL_MANUAL: + sc->spec_config.endless = 0; + sc->spec_config.enabled = 1; + break; + default: + return -1; + } + + ath9k_ps_wakeup(sc); + ath9k_hw_ops(ah)->spectral_scan_config(ah, &sc->spec_config); + ath9k_ps_restore(sc); + + sc->spectral_mode = spectral_mode; + return 0; } static int ath9k_config(struct ieee80211_hw *hw, u32 changed) @@ -1585,20 +1345,24 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); struct ieee80211_conf *conf = &hw->conf; + bool reset_channel = false; ath9k_ps_wakeup(sc); mutex_lock(&sc->mutex); - /* - * Leave this as the first check because we need to turn on the - * radio if it was disabled before prior to processing the rest - * of the changes. Likewise we must only disable the radio towards - * the end. - */ if (changed & IEEE80211_CONF_CHANGE_IDLE) { sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE); - if (sc->ps_idle) + if (sc->ps_idle) { ath_cancel_work(sc); + ath9k_stop_btcoex(sc); + } else { + ath9k_start_btcoex(sc); + /* + * The chip needs a reset to properly wake up from + * full sleep + */ + reset_channel = ah->chip_fullsleep; + } } /* @@ -1627,71 +1391,13 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) } } - if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { - struct ieee80211_channel *curchan = hw->conf.channel; - int pos = curchan->hw_value; - int old_pos = -1; - unsigned long flags; - - if (ah->curchan) - old_pos = ah->curchan - &ah->channels[0]; - - if (hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) - sc->sc_flags |= SC_OP_OFFCHANNEL; - else - sc->sc_flags &= ~SC_OP_OFFCHANNEL; - - ath_dbg(common, CONFIG, "Set channel: %d MHz type: %d\n", - curchan->center_freq, conf->channel_type); - - /* update survey stats for the old channel before switching */ - spin_lock_irqsave(&common->cc_lock, flags); - ath_update_survey_stats(sc); - spin_unlock_irqrestore(&common->cc_lock, flags); - - /* - * Preserve the current channel values, before updating - * the same channel - */ - if (ah->curchan && (old_pos == pos)) - ath9k_hw_getnf(ah, ah->curchan); - - ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos], - curchan, conf->channel_type); - - /* - * If the operating channel changes, change the survey in-use flags - * along with it. - * Reset the survey data for the new channel, unless we're switching - * back to the operating channel from an off-channel operation. - */ - if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) && - sc->cur_survey != &sc->survey[pos]) { - - if (sc->cur_survey) - sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE; - - sc->cur_survey = &sc->survey[pos]; - - memset(sc->cur_survey, 0, sizeof(struct survey_info)); - sc->cur_survey->filled |= SURVEY_INFO_IN_USE; - } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) { - memset(&sc->survey[pos], 0, sizeof(struct survey_info)); - } - - if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { + if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) { + if (ath_set_channel(sc, &hw->conf.chandef) < 0) { ath_err(common, "Unable to set channel\n"); mutex_unlock(&sc->mutex); + ath9k_ps_restore(sc); return -EINVAL; } - - /* - * The most recent snapshot of channel->noisefloor for the old - * channel is only available after the hardware reset. Copy it to - * the survey stats now. - */ - if (old_pos >= 0) - ath_update_survey_nf(sc, old_pos); } if (changed & IEEE80211_CONF_CHANGE_POWER) { @@ -1747,6 +1453,7 @@ static int ath9k_sta_add(struct ieee80211_hw *hw, struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_node *an = (struct ath_node *) sta->drv_priv; struct ieee80211_key_conf ps_key = { }; + int key; ath_node_attach(sc, sta, vif); @@ -1754,7 +1461,11 @@ static int ath9k_sta_add(struct ieee80211_hw *hw, vif->type != NL80211_IFTYPE_AP_VLAN) return 0; - an->ps_key = ath_key_config(common, vif, sta, &ps_key); + key = ath_key_config(common, vif, sta, &ps_key); + if (key > 0) { + an->ps_key = key; + an->key_idx[0] = key; + } return 0; } @@ -1771,6 +1482,8 @@ static void ath9k_del_ps_key(struct ath_softc *sc, return; ath_key_delete(common, &ps_key); + an->ps_key = 0; + an->key_idx[0] = 0; } static int ath9k_sta_remove(struct ieee80211_hw *hw, @@ -1785,6 +1498,19 @@ static int ath9k_sta_remove(struct ieee80211_hw *hw, return 0; } +static void ath9k_sta_set_tx_filter(struct ath_hw *ah, + struct ath_node *an, + bool set) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(an->key_idx); i++) { + if (!an->key_idx[i]) + continue; + ath9k_hw_set_tx_filter(ah, an->key_idx[i], set); + } +} + static void ath9k_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum sta_notify_cmd cmd, @@ -1793,15 +1519,14 @@ static void ath9k_sta_notify(struct ieee80211_hw *hw, struct ath_softc *sc = hw->priv; struct ath_node *an = (struct ath_node *) sta->drv_priv; - if (!(sc->sc_flags & SC_OP_TXAGGR)) - return; - switch (cmd) { case STA_NOTIFY_SLEEP: an->sleeping = true; ath_tx_aggr_sleep(sta, sc, an); + ath9k_sta_set_tx_filter(sc->sc_ah, an, true); break; case STA_NOTIFY_AWAKE: + ath9k_sta_set_tx_filter(sc->sc_ah, an, false); an->sleeping = false; ath_tx_aggr_wakeup(sc, an); break; @@ -1818,7 +1543,7 @@ static int ath9k_conf_tx(struct ieee80211_hw *hw, struct ath9k_tx_queue_info qi; int ret = 0; - if (queue >= WME_NUM_AC) + if (queue >= IEEE80211_NUM_ACS) return 0; txq = sc->tx.txq_map[queue]; @@ -1831,21 +1556,18 @@ static int ath9k_conf_tx(struct ieee80211_hw *hw, qi.tqi_aifs = params->aifs; qi.tqi_cwmin = params->cw_min; qi.tqi_cwmax = params->cw_max; - qi.tqi_burstTime = params->txop; + qi.tqi_burstTime = params->txop * 32; ath_dbg(common, CONFIG, "Configure tx [queue/halq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", queue, txq->axq_qnum, params->aifs, params->cw_min, params->cw_max, params->txop); + ath_update_max_aggr_framelen(sc, queue, qi.tqi_burstTime); ret = ath_txq_update(sc, txq->axq_qnum, &qi); if (ret) ath_err(common, "TXQ Update failed\n"); - if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) - if (queue == WME_AC_BE && !ret) - ath_beaconq_config(sc); - mutex_unlock(&sc->mutex); ath9k_ps_restore(sc); @@ -1860,7 +1582,8 @@ static int ath9k_set_key(struct ieee80211_hw *hw, { struct ath_softc *sc = hw->priv; struct ath_common *common = ath9k_hw_common(sc->sc_ah); - int ret = 0; + struct ath_node *an = NULL; + int ret = 0, i; if (ath9k_modparam_nohwcrypt) return -ENOSPC; @@ -1882,13 +1605,16 @@ static int ath9k_set_key(struct ieee80211_hw *hw, mutex_lock(&sc->mutex); ath9k_ps_wakeup(sc); - ath_dbg(common, CONFIG, "Set HW Key\n"); + ath_dbg(common, CONFIG, "Set HW Key %d\n", cmd); + if (sta) + an = (struct ath_node *)sta->drv_priv; switch (cmd) { case SET_KEY: if (sta) ath9k_del_ps_key(sc, vif, sta); + key->hw_key_idx = 0; ret = ath_key_config(common, vif, sta, key); if (ret >= 0) { key->hw_key_idx = ret; @@ -1898,12 +1624,30 @@ static int ath9k_set_key(struct ieee80211_hw *hw, key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; if (sc->sc_ah->sw_mgmt_crypto && key->cipher == WLAN_CIPHER_SUITE_CCMP) - key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; + key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; ret = 0; } + if (an && key->hw_key_idx) { + for (i = 0; i < ARRAY_SIZE(an->key_idx); i++) { + if (an->key_idx[i]) + continue; + an->key_idx[i] = key->hw_key_idx; + break; + } + WARN_ON(i == ARRAY_SIZE(an->key_idx)); + } break; case DISABLE_KEY: ath_key_delete(common, key); + if (an) { + for (i = 0; i < ARRAY_SIZE(an->key_idx); i++) { + if (an->key_idx[i] != key->hw_key_idx) + continue; + an->key_idx[i] = 0; + break; + } + } + key->hw_key_idx = 0; break; default: ret = -EINVAL; @@ -1914,80 +1658,117 @@ static int ath9k_set_key(struct ieee80211_hw *hw, return ret; } -static void ath9k_bss_iter(void *data, u8 *mac, struct ieee80211_vif *vif) + +static void ath9k_set_assoc_state(struct ath_softc *sc, + struct ieee80211_vif *vif) { - struct ath_softc *sc = data; struct ath_common *common = ath9k_hw_common(sc->sc_ah); - struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; struct ath_vif *avp = (void *)vif->drv_priv; + struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; + unsigned long flags; + + set_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags); + avp->primary_sta_vif = true; /* - * Skip iteration if primary station vif's bss info - * was not changed + * Set the AID, BSSID and do beacon-sync only when + * the HW opmode is STATION. + * + * But the primary bit is set above in any case. */ - if (sc->sc_flags & SC_OP_PRIM_STA_VIF) + if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION) return; - if (bss_conf->assoc) { - sc->sc_flags |= SC_OP_PRIM_STA_VIF; - avp->primary_sta_vif = true; - memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); - common->curaid = bss_conf->aid; - ath9k_hw_write_associd(sc->sc_ah); - ath_dbg(common, CONFIG, "Bss Info ASSOC %d, bssid: %pM\n", - bss_conf->aid, common->curbssid); - ath_beacon_config(sc, vif); - /* - * Request a re-configuration of Beacon related timers - * on the receipt of the first Beacon frame (i.e., - * after time sync with the AP). - */ - sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON; - /* Reset rssi stats */ - sc->last_rssi = ATH_RSSI_DUMMY_MARKER; - sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER; - - if (!common->disable_ani) { - sc->sc_flags |= SC_OP_ANI_RUN; - ath_start_ani(common); - } + memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); + common->curaid = bss_conf->aid; + ath9k_hw_write_associd(sc->sc_ah); - } + common->last_rssi = ATH_RSSI_DUMMY_MARKER; + sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER; + + spin_lock_irqsave(&sc->sc_pm_lock, flags); + sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON; + spin_unlock_irqrestore(&sc->sc_pm_lock, flags); + + if (ath9k_hw_mci_is_enabled(sc->sc_ah)) + ath9k_mci_update_wlan_channels(sc, false); + + ath_dbg(common, CONFIG, + "Primary Station interface: %pM, BSSID: %pM\n", + vif->addr, common->curbssid); } -static void ath9k_config_bss(struct ath_softc *sc, struct ieee80211_vif *vif) +static void ath9k_bss_assoc_iter(void *data, u8 *mac, struct ieee80211_vif *vif) { - struct ath_common *common = ath9k_hw_common(sc->sc_ah); + struct ath_softc *sc = data; struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; - struct ath_vif *avp = (void *)vif->drv_priv; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); - if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION) + if (test_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags)) return; - /* Reconfigure bss info */ - if (avp->primary_sta_vif && !bss_conf->assoc) { - ath_dbg(common, CONFIG, "Bss Info DISASSOC %d, bssid %pM\n", - common->curaid, common->curbssid); - sc->sc_flags &= ~(SC_OP_PRIM_STA_VIF | SC_OP_BEACONS); - avp->primary_sta_vif = false; - memset(common->curbssid, 0, ETH_ALEN); - common->curaid = 0; - } + if (bss_conf->assoc) + ath9k_set_assoc_state(sc, vif); +} - ieee80211_iterate_active_interfaces_atomic( - sc->hw, ath9k_bss_iter, sc); +void ath9k_p2p_ps_timer(void *priv) +{ + struct ath_softc *sc = priv; + struct ath_vif *avp = sc->p2p_ps_vif; + struct ieee80211_vif *vif; + struct ieee80211_sta *sta; + struct ath_node *an; + u32 tsf; - /* - * None of station vifs are associated. - * Clear bssid & aid - */ - if (!(sc->sc_flags & SC_OP_PRIM_STA_VIF)) { - ath9k_hw_write_associd(sc->sc_ah); - /* Stop ANI */ - sc->sc_flags &= ~SC_OP_ANI_RUN; - del_timer_sync(&common->ani.timer); - memset(&sc->caldata, 0, sizeof(sc->caldata)); - } + if (!avp) + return; + + tsf = ath9k_hw_gettsf32(sc->sc_ah); + if (!avp->noa.absent) + tsf += ATH_P2P_PS_STOP_TIME; + + if (!avp->noa.has_next_tsf || + avp->noa.next_tsf - tsf > BIT(31)) + ieee80211_update_p2p_noa(&avp->noa, tsf); + + ath9k_update_p2p_ps_timer(sc, avp); + + rcu_read_lock(); + + vif = avp->vif; + sta = ieee80211_find_sta(vif, vif->bss_conf.bssid); + if (!sta) + goto out; + + an = (void *) sta->drv_priv; + if (an->sleeping == !!avp->noa.absent) + goto out; + + an->sleeping = avp->noa.absent; + if (an->sleeping) + ath_tx_aggr_sleep(sta, sc, an); + else + ath_tx_aggr_wakeup(sc, an); + +out: + rcu_read_unlock(); +} + +void ath9k_update_p2p_ps(struct ath_softc *sc, struct ieee80211_vif *vif) +{ + struct ath_vif *avp = (void *)vif->drv_priv; + u32 tsf; + + if (!sc->p2p_ps_timer) + return; + + if (vif->type != NL80211_IFTYPE_STATION || !vif->p2p) + return; + + sc->p2p_ps_vif = avp; + tsf = ath9k_hw_gettsf32(sc->sc_ah); + ieee80211_parse_p2p_noa(&vif->bss_conf.p2p_noa_attr, &avp->noa, tsf); + ath9k_update_p2p_ps_timer(sc, avp); } static void ath9k_bss_info_changed(struct ieee80211_hw *hw, @@ -1995,52 +1776,56 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_bss_conf *bss_conf, u32 changed) { +#define CHECK_ANI \ + (BSS_CHANGED_ASSOC | \ + BSS_CHANGED_IBSS | \ + BSS_CHANGED_BEACON_ENABLED) + struct ath_softc *sc = hw->priv; struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); struct ath_vif *avp = (void *)vif->drv_priv; + unsigned long flags; int slottime; - int error; ath9k_ps_wakeup(sc); mutex_lock(&sc->mutex); - if (changed & BSS_CHANGED_BSSID) { - ath9k_config_bss(sc, vif); + if (changed & BSS_CHANGED_ASSOC) { + ath_dbg(common, CONFIG, "BSSID %pM Changed ASSOC %d\n", + bss_conf->bssid, bss_conf->assoc); + + if (avp->primary_sta_vif && !bss_conf->assoc) { + clear_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags); + avp->primary_sta_vif = false; - ath_dbg(common, CONFIG, "BSSID: %pM aid: 0x%x\n", - common->curbssid, common->curaid); + if (ah->opmode == NL80211_IFTYPE_STATION) + clear_bit(ATH_OP_BEACONS, &common->op_flags); + } + + ieee80211_iterate_active_interfaces_atomic( + sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL, + ath9k_bss_assoc_iter, sc); + + if (!test_bit(ATH_OP_PRIM_STA_VIF, &common->op_flags) && + ah->opmode == NL80211_IFTYPE_STATION) { + memset(common->curbssid, 0, ETH_ALEN); + common->curaid = 0; + ath9k_hw_write_associd(sc->sc_ah); + if (ath9k_hw_mci_is_enabled(sc->sc_ah)) + ath9k_mci_update_wlan_channels(sc, true); + } } if (changed & BSS_CHANGED_IBSS) { - /* There can be only one vif available */ memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); common->curaid = bss_conf->aid; ath9k_hw_write_associd(sc->sc_ah); - - if (bss_conf->ibss_joined) { - sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER; - - if (!common->disable_ani) { - sc->sc_flags |= SC_OP_ANI_RUN; - ath_start_ani(common); - } - - } else { - sc->sc_flags &= ~SC_OP_ANI_RUN; - del_timer_sync(&common->ani.timer); - } } - /* Enable transmission of beacons (AP, IBSS, MESH) */ - if ((changed & BSS_CHANGED_BEACON) || - ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon)) { - ath9k_set_beaconing_status(sc, false); - error = ath_beacon_alloc(sc, vif); - if (!error) - ath_beacon_config(sc, vif); - ath9k_set_beaconing_status(sc, true); - } + if ((changed & BSS_CHANGED_BEACON_ENABLED) || + (changed & BSS_CHANGED_BEACON_INT)) + ath9k_beacon_config(sc, vif, changed); if (changed & BSS_CHANGED_ERP_SLOT) { if (bss_conf->use_short_slot) @@ -2061,51 +1846,22 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, } } - /* Disable transmission of beacons */ - if ((changed & BSS_CHANGED_BEACON_ENABLED) && - !bss_conf->enable_beacon) { - ath9k_set_beaconing_status(sc, false); - avp->is_bslot_active = false; - ath9k_set_beaconing_status(sc, true); - } - - if (changed & BSS_CHANGED_BEACON_INT) { - /* - * In case of AP mode, the HW TSF has to be reset - * when the beacon interval changes. - */ - if (vif->type == NL80211_IFTYPE_AP) { - sc->sc_flags |= SC_OP_TSF_RESET; - ath9k_set_beaconing_status(sc, false); - error = ath_beacon_alloc(sc, vif); - if (!error) - ath_beacon_config(sc, vif); - ath9k_set_beaconing_status(sc, true); - } else - ath_beacon_config(sc, vif); - } - - if (changed & BSS_CHANGED_ERP_PREAMBLE) { - ath_dbg(common, CONFIG, "BSS Changed PREAMBLE %d\n", - bss_conf->use_short_preamble); - if (bss_conf->use_short_preamble) - sc->sc_flags |= SC_OP_PREAMBLE_SHORT; - else - sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT; + if (changed & BSS_CHANGED_P2P_PS) { + spin_lock_bh(&sc->sc_pcu_lock); + spin_lock_irqsave(&sc->sc_pm_lock, flags); + if (!(sc->ps_flags & PS_BEACON_SYNC)) + ath9k_update_p2p_ps(sc, vif); + spin_unlock_irqrestore(&sc->sc_pm_lock, flags); + spin_unlock_bh(&sc->sc_pcu_lock); } - if (changed & BSS_CHANGED_ERP_CTS_PROT) { - ath_dbg(common, CONFIG, "BSS Changed CTS PROT %d\n", - bss_conf->use_cts_prot); - if (bss_conf->use_cts_prot && - hw->conf.channel->band != IEEE80211_BAND_5GHZ) - sc->sc_flags |= SC_OP_PROTECT_ENABLE; - else - sc->sc_flags &= ~SC_OP_PROTECT_ENABLE; - } + if (changed & CHECK_ANI) + ath_check_ani(sc); mutex_unlock(&sc->mutex); ath9k_ps_restore(sc); + +#undef CHECK_ANI } static u64 ath9k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) @@ -2155,31 +1911,31 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw, u16 tid, u16 *ssn, u8 buf_size) { struct ath_softc *sc = hw->priv; + bool flush = false; int ret = 0; - local_bh_disable(); + mutex_lock(&sc->mutex); switch (action) { case IEEE80211_AMPDU_RX_START: - if (!(sc->sc_flags & SC_OP_RXAGGR)) - ret = -ENOTSUPP; break; case IEEE80211_AMPDU_RX_STOP: break; case IEEE80211_AMPDU_TX_START: - if (!(sc->sc_flags & SC_OP_TXAGGR)) - return -EOPNOTSUPP; - ath9k_ps_wakeup(sc); ret = ath_tx_aggr_start(sc, sta, tid, ssn); if (!ret) ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); ath9k_ps_restore(sc); break; - case IEEE80211_AMPDU_TX_STOP: + case IEEE80211_AMPDU_TX_STOP_FLUSH: + case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: + flush = true; + case IEEE80211_AMPDU_TX_STOP_CONT: ath9k_ps_wakeup(sc); ath_tx_aggr_stop(sc, sta, tid); - ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); + if (!flush) + ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); ath9k_ps_restore(sc); break; case IEEE80211_AMPDU_TX_OPERATIONAL: @@ -2191,7 +1947,7 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw, ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n"); } - local_bh_enable(); + mutex_unlock(&sc->mutex); return ret; } @@ -2203,10 +1959,12 @@ static int ath9k_get_survey(struct ieee80211_hw *hw, int idx, struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ieee80211_supported_band *sband; struct ieee80211_channel *chan; - unsigned long flags; int pos; - spin_lock_irqsave(&common->cc_lock, flags); + if (config_enabled(CONFIG_ATH9K_TX99)) + return -EOPNOTSUPP; + + spin_lock_bh(&common->cc_lock); if (idx == 0) ath_update_survey_stats(sc); @@ -2220,7 +1978,7 @@ static int ath9k_get_survey(struct ieee80211_hw *hw, int idx, sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ]; if (!sband || idx >= sband->n_channels) { - spin_unlock_irqrestore(&common->cc_lock, flags); + spin_unlock_bh(&common->cc_lock); return -ENOENT; } @@ -2228,7 +1986,7 @@ static int ath9k_get_survey(struct ieee80211_hw *hw, int idx, pos = chan->hw_value; memcpy(survey, &sc->survey[pos], sizeof(*survey)); survey->channel = chan; - spin_unlock_irqrestore(&common->cc_lock, flags); + spin_unlock_bh(&common->cc_lock); return 0; } @@ -2238,6 +1996,9 @@ static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class) struct ath_softc *sc = hw->priv; struct ath_hw *ah = sc->sc_ah; + if (config_enabled(CONFIG_ATH9K_TX99)) + return; + mutex_lock(&sc->mutex); ah->coverage_class = coverage_class; @@ -2248,13 +2009,32 @@ static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class) mutex_unlock(&sc->mutex); } -static void ath9k_flush(struct ieee80211_hw *hw, bool drop) +static bool ath9k_has_tx_pending(struct ath_softc *sc) +{ + int i, npend = 0; + + for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { + if (!ATH_TXQ_SETUP(sc, i)) + continue; + + if (!sc->tx.txq[i].axq_depth) + continue; + + npend = ath9k_has_pending_frames(sc, &sc->tx.txq[i]); + if (npend) + break; + } + + return !!npend; +} + +static void ath9k_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + u32 queues, bool drop) { struct ath_softc *sc = hw->priv; struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); - int timeout = 200; /* ms */ - int i, j; + int timeout = HZ / 5; /* 200 ms */ bool drain_txq; mutex_lock(&sc->mutex); @@ -2266,40 +2046,24 @@ static void ath9k_flush(struct ieee80211_hw *hw, bool drop) return; } - if (sc->sc_flags & SC_OP_INVALID) { + if (test_bit(ATH_OP_INVALID, &common->op_flags)) { ath_dbg(common, ANY, "Device not present\n"); mutex_unlock(&sc->mutex); return; } - for (j = 0; j < timeout; j++) { - bool npend = false; - - if (j) - usleep_range(1000, 2000); - - for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { - if (!ATH_TXQ_SETUP(sc, i)) - continue; - - npend = ath9k_has_pending_frames(sc, &sc->tx.txq[i]); - - if (npend) - break; - } - - if (!npend) - break; - } + if (wait_event_timeout(sc->tx_wait, !ath9k_has_tx_pending(sc), + timeout) > 0) + drop = false; if (drop) { ath9k_ps_wakeup(sc); spin_lock_bh(&sc->sc_pcu_lock); - drain_txq = ath_drain_all_txq(sc, false); + drain_txq = ath_drain_all_txq(sc); spin_unlock_bh(&sc->sc_pcu_lock); if (!drain_txq) - ath_reset(sc, false); + ath_reset(sc); ath9k_ps_restore(sc); ieee80211_wake_queues(hw); @@ -2332,17 +2096,19 @@ static int ath9k_tx_last_beacon(struct ieee80211_hw *hw) struct ath_vif *avp; struct ath_buf *bf; struct ath_tx_status ts; + bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA); int status; vif = sc->beacon.bslot[0]; if (!vif) return 0; - avp = (void *)vif->drv_priv; - if (!avp->is_bslot_active) + if (!vif->bss_conf.enable_beacon) return 0; - if (!sc->beacon.tx_processed) { + avp = (void *)vif->drv_priv; + + if (!sc->beacon.tx_processed && !edma) { tasklet_disable(&sc->bcon_tasklet); bf = avp->av_bcbuf; @@ -2395,12 +2161,32 @@ static u32 fill_chainmask(u32 cap, u32 new) return filled; } +static bool validate_antenna_mask(struct ath_hw *ah, u32 val) +{ + if (AR_SREV_9300_20_OR_LATER(ah)) + return true; + + switch (val & 0x7) { + case 0x1: + case 0x3: + case 0x7: + return true; + case 0x2: + return (ah->caps.rx_chainmask == 1); + default: + return false; + } +} + static int ath9k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) { struct ath_softc *sc = hw->priv; struct ath_hw *ah = sc->sc_ah; - if (!rx_ant || !tx_ant) + if (ah->caps.rx_chainmask != 1) + rx_ant |= tx_ant; + + if (!validate_antenna_mask(ah, rx_ant) || !tx_ant) return -EINVAL; sc->ant_rx = rx_ant; @@ -2416,7 +2202,7 @@ static int ath9k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) ah->rxchainmask = fill_chainmask(ah->caps.rx_chainmask, rx_ant); ah->txchainmask = fill_chainmask(ah->caps.tx_chainmask, tx_ant); - ath9k_reload_chainmask_settings(sc); + ath9k_cmn_reload_chainmask(ah); return 0; } @@ -2430,6 +2216,20 @@ static int ath9k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) return 0; } +static void ath9k_sw_scan_start(struct ieee80211_hw *hw) +{ + struct ath_softc *sc = hw->priv; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + set_bit(ATH_OP_SCANNING, &common->op_flags); +} + +static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) +{ + struct ath_softc *sc = hw->priv; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + clear_bit(ATH_OP_SCANNING, &common->op_flags); +} + struct ieee80211_ops ath9k_ops = { .tx = ath9k_tx, .start = ath9k_start, @@ -2455,7 +2255,26 @@ struct ieee80211_ops ath9k_ops = { .flush = ath9k_flush, .tx_frames_pending = ath9k_tx_frames_pending, .tx_last_beacon = ath9k_tx_last_beacon, + .release_buffered_frames = ath9k_release_buffered_frames, .get_stats = ath9k_get_stats, .set_antenna = ath9k_set_antenna, .get_antenna = ath9k_get_antenna, + +#ifdef CONFIG_ATH9K_WOW + .suspend = ath9k_suspend, + .resume = ath9k_resume, + .set_wakeup = ath9k_set_wakeup, +#endif + +#ifdef CONFIG_ATH9K_DEBUGFS + .get_et_sset_count = ath9k_get_et_sset_count, + .get_et_stats = ath9k_get_et_stats, + .get_et_strings = ath9k_get_et_strings, +#endif + +#if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_STATION_STATISTICS) + .sta_add_debugfs = ath9k_sta_add_debugfs, +#endif + .sw_scan_start = ath9k_sw_scan_start, + .sw_scan_complete = ath9k_sw_scan_complete, }; |