2 * Copyright (c) 2008-2011 Atheros Communications Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #include <linux/nl80211.h>
18 #include <linux/delay.h>
22 static void ath9k_set_assoc_state(struct ath_softc *sc,
23 struct ieee80211_vif *vif);
25 u8 ath9k_parse_mpdudensity(u8 mpdudensity)
28 * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
29 * 0 for no restriction
38 switch (mpdudensity) {
44 /* Our lower layer calculations limit our precision to
60 static bool ath9k_has_pending_frames(struct ath_softc *sc, struct ath_txq *txq)
64 spin_lock_bh(&txq->axq_lock);
66 if (txq->axq_depth || !list_empty(&txq->axq_acq))
69 spin_unlock_bh(&txq->axq_lock);
73 static bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode)
78 spin_lock_irqsave(&sc->sc_pm_lock, flags);
79 ret = ath9k_hw_setpower(sc->sc_ah, mode);
80 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
85 void ath9k_ps_wakeup(struct ath_softc *sc)
87 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
89 enum ath9k_power_mode power_mode;
91 spin_lock_irqsave(&sc->sc_pm_lock, flags);
92 if (++sc->ps_usecount != 1)
95 power_mode = sc->sc_ah->power_mode;
96 ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE);
99 * While the hardware is asleep, the cycle counters contain no
100 * useful data. Better clear them now so that they don't mess up
101 * survey data results.
103 if (power_mode != ATH9K_PM_AWAKE) {
104 spin_lock(&common->cc_lock);
105 ath_hw_cycle_counters_update(common);
106 memset(&common->cc_survey, 0, sizeof(common->cc_survey));
107 memset(&common->cc_ani, 0, sizeof(common->cc_ani));
108 spin_unlock(&common->cc_lock);
112 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
115 void ath9k_ps_restore(struct ath_softc *sc)
117 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
118 enum ath9k_power_mode mode;
122 spin_lock_irqsave(&sc->sc_pm_lock, flags);
123 if (--sc->ps_usecount != 0)
127 ath9k_hw_setrxabort(sc->sc_ah, 1);
128 ath9k_hw_stopdmarecv(sc->sc_ah, &reset);
129 mode = ATH9K_PM_FULL_SLEEP;
130 } else if (sc->ps_enabled &&
131 !(sc->ps_flags & (PS_WAIT_FOR_BEACON |
133 PS_WAIT_FOR_PSPOLL_DATA |
136 mode = ATH9K_PM_NETWORK_SLEEP;
137 if (ath9k_hw_btcoex_is_enabled(sc->sc_ah))
138 ath9k_btcoex_stop_gen_timer(sc);
143 spin_lock(&common->cc_lock);
144 ath_hw_cycle_counters_update(common);
145 spin_unlock(&common->cc_lock);
147 ath9k_hw_setpower(sc->sc_ah, mode);
150 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
153 static void __ath_cancel_work(struct ath_softc *sc)
155 cancel_work_sync(&sc->paprd_work);
156 cancel_work_sync(&sc->hw_check_work);
157 cancel_delayed_work_sync(&sc->tx_complete_work);
158 cancel_delayed_work_sync(&sc->hw_pll_work);
160 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
161 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
162 cancel_work_sync(&sc->mci_work);
166 static void ath_cancel_work(struct ath_softc *sc)
168 __ath_cancel_work(sc);
169 cancel_work_sync(&sc->hw_reset_work);
172 static void ath_restart_work(struct ath_softc *sc)
174 ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
176 if (AR_SREV_9340(sc->sc_ah) || AR_SREV_9330(sc->sc_ah))
177 ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work,
178 msecs_to_jiffies(ATH_PLL_WORK_INTERVAL));
180 ath_start_rx_poll(sc, 3);
184 static bool ath_prepare_reset(struct ath_softc *sc)
186 struct ath_hw *ah = sc->sc_ah;
189 ieee80211_stop_queues(sc->hw);
191 sc->hw_busy_count = 0;
193 del_timer_sync(&sc->rx_poll_timer);
195 ath9k_hw_disable_interrupts(ah);
197 if (!ath_drain_all_txq(sc))
200 if (!ath_stoprecv(sc))
206 static bool ath_complete_reset(struct ath_softc *sc, bool start)
208 struct ath_hw *ah = sc->sc_ah;
209 struct ath_common *common = ath9k_hw_common(ah);
213 if (ath_startrecv(sc) != 0) {
214 ath_err(common, "Unable to restart recv logic\n");
218 ath9k_cmn_update_txpow(ah, sc->curtxpow,
219 sc->config.txpowlimit, &sc->curtxpow);
221 clear_bit(SC_OP_HW_RESET, &sc->sc_flags);
222 ath9k_hw_set_interrupts(ah);
223 ath9k_hw_enable_interrupts(ah);
225 if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) && start) {
226 if (!test_bit(SC_OP_BEACONS, &sc->sc_flags))
229 if (ah->opmode == NL80211_IFTYPE_STATION &&
230 test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
231 spin_lock_irqsave(&sc->sc_pm_lock, flags);
232 sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
233 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
235 ath9k_set_beacon(sc);
238 ath_restart_work(sc);
240 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
241 if (!ATH_TXQ_SETUP(sc, i))
244 spin_lock_bh(&sc->tx.txq[i].axq_lock);
245 ath_txq_schedule(sc, &sc->tx.txq[i]);
246 spin_unlock_bh(&sc->tx.txq[i].axq_lock);
250 ieee80211_wake_queues(sc->hw);
255 static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan)
257 struct ath_hw *ah = sc->sc_ah;
258 struct ath_common *common = ath9k_hw_common(ah);
259 struct ath9k_hw_cal_data *caldata = NULL;
263 __ath_cancel_work(sc);
265 tasklet_disable(&sc->intr_tq);
266 spin_lock_bh(&sc->sc_pcu_lock);
268 if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) {
270 caldata = &sc->caldata;
278 if (!ath_prepare_reset(sc))
281 ath_dbg(common, CONFIG, "Reset to %u MHz, HT40: %d fastcc: %d\n",
282 hchan->channel, IS_CHAN_HT40(hchan), fastcc);
284 r = ath9k_hw_reset(ah, hchan, caldata, fastcc);
287 "Unable to reset channel, reset status %d\n", r);
289 ath9k_hw_enable_interrupts(ah);
290 ath9k_queue_reset(sc, RESET_TYPE_BB_HANG);
295 if (ath9k_hw_mci_is_enabled(sc->sc_ah) &&
296 (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
297 ath9k_mci_set_txpower(sc, true, false);
299 if (!ath_complete_reset(sc, true))
303 spin_unlock_bh(&sc->sc_pcu_lock);
304 tasklet_enable(&sc->intr_tq);
311 * Set/change channels. If the channel is really being changed, it's done
312 * by reseting the chip. To accomplish this we must first cleanup any pending
313 * DMA, then restart stuff.
315 static int ath_set_channel(struct ath_softc *sc, struct cfg80211_chan_def *chandef)
317 struct ath_hw *ah = sc->sc_ah;
318 struct ath_common *common = ath9k_hw_common(ah);
319 struct ieee80211_hw *hw = sc->hw;
320 struct ath9k_channel *hchan;
321 struct ieee80211_channel *chan = chandef->chan;
324 int pos = chan->hw_value;
328 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
331 offchannel = !!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL);
334 old_pos = ah->curchan - &ah->channels[0];
336 ath_dbg(common, CONFIG, "Set channel: %d MHz width: %d\n",
337 chan->center_freq, chandef->width);
339 /* update survey stats for the old channel before switching */
340 spin_lock_irqsave(&common->cc_lock, flags);
341 ath_update_survey_stats(sc);
342 spin_unlock_irqrestore(&common->cc_lock, flags);
344 ath9k_cmn_get_channel(hw, ah, chandef);
347 * If the operating channel changes, change the survey in-use flags
349 * Reset the survey data for the new channel, unless we're switching
350 * back to the operating channel from an off-channel operation.
352 if (!offchannel && sc->cur_survey != &sc->survey[pos]) {
354 sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
356 sc->cur_survey = &sc->survey[pos];
358 memset(sc->cur_survey, 0, sizeof(struct survey_info));
359 sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
360 } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
361 memset(&sc->survey[pos], 0, sizeof(struct survey_info));
364 hchan = &sc->sc_ah->channels[pos];
365 r = ath_reset_internal(sc, hchan);
370 * The most recent snapshot of channel->noisefloor for the old
371 * channel is only available after the hardware reset. Copy it to
372 * the survey stats now.
375 ath_update_survey_nf(sc, old_pos);
378 * Enable radar pulse detection if on a DFS channel. Spectral
379 * scanning and radar detection can not be used concurrently.
381 if (hw->conf.radar_enabled) {
384 /* set HW specific DFS configuration */
385 ath9k_hw_set_radar_params(ah);
386 rxfilter = ath9k_hw_getrxfilter(ah);
387 rxfilter |= ATH9K_RX_FILTER_PHYRADAR |
388 ATH9K_RX_FILTER_PHYERR;
389 ath9k_hw_setrxfilter(ah, rxfilter);
390 ath_dbg(common, DFS, "DFS enabled at freq %d\n",
393 /* perform spectral scan if requested. */
394 if (test_bit(SC_OP_SCANNING, &sc->sc_flags) &&
395 sc->spectral_mode == SPECTRAL_CHANSCAN)
396 ath9k_spectral_scan_trigger(hw);
402 static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
403 struct ieee80211_vif *vif)
406 an = (struct ath_node *)sta->drv_priv;
412 ath_tx_node_init(sc, an);
414 if (sta->ht_cap.ht_supported) {
415 an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
416 sta->ht_cap.ampdu_factor);
417 an->mpdudensity = ath9k_parse_mpdudensity(sta->ht_cap.ampdu_density);
421 static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
423 struct ath_node *an = (struct ath_node *)sta->drv_priv;
424 ath_tx_node_cleanup(sc, an);
427 void ath9k_tasklet(unsigned long data)
429 struct ath_softc *sc = (struct ath_softc *)data;
430 struct ath_hw *ah = sc->sc_ah;
431 struct ath_common *common = ath9k_hw_common(ah);
432 enum ath_reset_type type;
434 u32 status = sc->intrstatus;
438 spin_lock(&sc->sc_pcu_lock);
440 if ((status & ATH9K_INT_FATAL) ||
441 (status & ATH9K_INT_BB_WATCHDOG)) {
443 if (status & ATH9K_INT_FATAL)
444 type = RESET_TYPE_FATAL_INT;
446 type = RESET_TYPE_BB_WATCHDOG;
448 ath9k_queue_reset(sc, type);
451 * Increment the ref. counter here so that
452 * interrupts are enabled in the reset routine.
454 atomic_inc(&ah->intr_ref_cnt);
455 ath_dbg(common, ANY, "FATAL: Skipping interrupts\n");
459 spin_lock_irqsave(&sc->sc_pm_lock, flags);
460 if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) {
462 * TSF sync does not look correct; remain awake to sync with
465 ath_dbg(common, PS, "TSFOOR - Sync with next Beacon\n");
466 sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC;
468 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
470 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
471 rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL |
474 rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
476 if (status & rxmask) {
477 /* Check for high priority Rx first */
478 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
479 (status & ATH9K_INT_RXHP))
480 ath_rx_tasklet(sc, 0, true);
482 ath_rx_tasklet(sc, 0, false);
485 if (status & ATH9K_INT_TX) {
486 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
487 ath_tx_edma_tasklet(sc);
492 ath9k_btcoex_handle_interrupt(sc, status);
494 /* re-enable hardware interrupt */
495 ath9k_hw_enable_interrupts(ah);
497 spin_unlock(&sc->sc_pcu_lock);
498 ath9k_ps_restore(sc);
501 irqreturn_t ath_isr(int irq, void *dev)
503 #define SCHED_INTR ( \
505 ATH9K_INT_BB_WATCHDOG | \
515 ATH9K_INT_GENTIMER | \
518 struct ath_softc *sc = dev;
519 struct ath_hw *ah = sc->sc_ah;
520 struct ath_common *common = ath9k_hw_common(ah);
521 enum ath9k_int status;
525 * The hardware is not ready/present, don't
526 * touch anything. Note this can happen early
527 * on if the IRQ is shared.
529 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
532 /* shared irq, not for us */
534 if (!ath9k_hw_intrpend(ah))
537 if (test_bit(SC_OP_HW_RESET, &sc->sc_flags)) {
538 ath9k_hw_kill_interrupts(ah);
543 * Figure out the reason(s) for the interrupt. Note
544 * that the hal returns a pseudo-ISR that may include
545 * bits we haven't explicitly enabled so we mask the
546 * value to insure we only process bits we requested.
548 ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */
549 status &= ah->imask; /* discard unasked-for bits */
552 * If there are no status bits set, then this interrupt was not
553 * for me (should have been caught above).
558 /* Cache the status */
559 sc->intrstatus = status;
561 if (status & SCHED_INTR)
565 * If a FATAL or RXORN interrupt is received, we have to reset the
568 if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) &&
569 !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)))
572 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
573 (status & ATH9K_INT_BB_WATCHDOG)) {
575 spin_lock(&common->cc_lock);
576 ath_hw_cycle_counters_update(common);
577 ar9003_hw_bb_watchdog_dbg_info(ah);
578 spin_unlock(&common->cc_lock);
582 #ifdef CONFIG_PM_SLEEP
583 if (status & ATH9K_INT_BMISS) {
584 if (atomic_read(&sc->wow_sleep_proc_intr) == 0) {
585 ath_dbg(common, ANY, "during WoW we got a BMISS\n");
586 atomic_inc(&sc->wow_got_bmiss_intr);
587 atomic_dec(&sc->wow_sleep_proc_intr);
591 if (status & ATH9K_INT_SWBA)
592 tasklet_schedule(&sc->bcon_tasklet);
594 if (status & ATH9K_INT_TXURN)
595 ath9k_hw_updatetxtriglevel(ah, true);
597 if (status & ATH9K_INT_RXEOL) {
598 ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
599 ath9k_hw_set_interrupts(ah);
602 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
603 if (status & ATH9K_INT_TIM_TIMER) {
604 if (ATH_DBG_WARN_ON_ONCE(sc->ps_idle))
606 /* Clear RxAbort bit so that we can
608 ath9k_setpower(sc, ATH9K_PM_AWAKE);
609 spin_lock(&sc->sc_pm_lock);
610 ath9k_hw_setrxabort(sc->sc_ah, 0);
611 sc->ps_flags |= PS_WAIT_FOR_BEACON;
612 spin_unlock(&sc->sc_pm_lock);
617 ath_debug_stat_interrupt(sc, status);
620 /* turn off every interrupt */
621 ath9k_hw_disable_interrupts(ah);
622 tasklet_schedule(&sc->intr_tq);
630 static int ath_reset(struct ath_softc *sc)
635 r = ath_reset_internal(sc, NULL);
636 ath9k_ps_restore(sc);
641 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type)
643 #ifdef CONFIG_ATH9K_DEBUGFS
644 RESET_STAT_INC(sc, type);
646 set_bit(SC_OP_HW_RESET, &sc->sc_flags);
647 ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
650 void ath_reset_work(struct work_struct *work)
652 struct ath_softc *sc = container_of(work, struct ath_softc, hw_reset_work);
657 /**********************/
658 /* mac80211 callbacks */
659 /**********************/
661 static int ath9k_start(struct ieee80211_hw *hw)
663 struct ath_softc *sc = hw->priv;
664 struct ath_hw *ah = sc->sc_ah;
665 struct ath_common *common = ath9k_hw_common(ah);
666 struct ieee80211_channel *curchan = hw->conf.chandef.chan;
667 struct ath9k_channel *init_channel;
670 ath_dbg(common, CONFIG,
671 "Starting driver with initial channel: %d MHz\n",
672 curchan->center_freq);
675 mutex_lock(&sc->mutex);
677 init_channel = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef);
679 /* Reset SERDES registers */
680 ath9k_hw_configpcipowersave(ah, false);
683 * The basic interface to setting the hardware in a good
684 * state is ``reset''. On return the hardware is known to
685 * be powered up and with interrupts disabled. This must
686 * be followed by initialization of the appropriate bits
687 * and then setup of the interrupt mask.
689 spin_lock_bh(&sc->sc_pcu_lock);
691 atomic_set(&ah->intr_ref_cnt, -1);
693 r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
696 "Unable to reset hardware; reset status %d (freq %u MHz)\n",
697 r, curchan->center_freq);
698 ah->reset_power_on = false;
701 /* Setup our intr mask. */
702 ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL |
703 ATH9K_INT_RXORN | ATH9K_INT_FATAL |
706 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
707 ah->imask |= ATH9K_INT_RXHP |
709 ATH9K_INT_BB_WATCHDOG;
711 ah->imask |= ATH9K_INT_RX;
713 ah->imask |= ATH9K_INT_GTT;
715 if (ah->caps.hw_caps & ATH9K_HW_CAP_HT)
716 ah->imask |= ATH9K_INT_CST;
720 clear_bit(SC_OP_INVALID, &sc->sc_flags);
721 sc->sc_ah->is_monitoring = false;
723 if (!ath_complete_reset(sc, false))
724 ah->reset_power_on = false;
726 if (ah->led_pin >= 0) {
727 ath9k_hw_cfg_output(ah, ah->led_pin,
728 AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
729 ath9k_hw_set_gpio(ah, ah->led_pin, 0);
733 * Reset key cache to sane defaults (all entries cleared) instead of
734 * semi-random values after suspend/resume.
736 ath9k_cmn_init_crypto(sc->sc_ah);
738 spin_unlock_bh(&sc->sc_pcu_lock);
740 mutex_unlock(&sc->mutex);
742 ath9k_ps_restore(sc);
747 static void ath9k_tx(struct ieee80211_hw *hw,
748 struct ieee80211_tx_control *control,
751 struct ath_softc *sc = hw->priv;
752 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
753 struct ath_tx_control txctl;
754 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
757 if (sc->ps_enabled) {
759 * mac80211 does not set PM field for normal data frames, so we
760 * need to update that based on the current PS mode.
762 if (ieee80211_is_data(hdr->frame_control) &&
763 !ieee80211_is_nullfunc(hdr->frame_control) &&
764 !ieee80211_has_pm(hdr->frame_control)) {
766 "Add PM=1 for a TX frame while in PS mode\n");
767 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
771 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP)) {
773 * We are using PS-Poll and mac80211 can request TX while in
774 * power save mode. Need to wake up hardware for the TX to be
775 * completed and if needed, also for RX of buffered frames.
778 spin_lock_irqsave(&sc->sc_pm_lock, flags);
779 if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
780 ath9k_hw_setrxabort(sc->sc_ah, 0);
781 if (ieee80211_is_pspoll(hdr->frame_control)) {
783 "Sending PS-Poll to pick a buffered frame\n");
784 sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA;
786 ath_dbg(common, PS, "Wake up to complete TX\n");
787 sc->ps_flags |= PS_WAIT_FOR_TX_ACK;
790 * The actual restore operation will happen only after
791 * the ps_flags bit is cleared. We are just dropping
792 * the ps_usecount here.
794 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
795 ath9k_ps_restore(sc);
799 * Cannot tx while the hardware is in full sleep, it first needs a full
800 * chip reset to recover from that
802 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_FULL_SLEEP)) {
803 ath_err(common, "TX while HW is in FULL_SLEEP mode\n");
807 memset(&txctl, 0, sizeof(struct ath_tx_control));
808 txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)];
809 txctl.sta = control->sta;
811 ath_dbg(common, XMIT, "transmitting packet, skb: %p\n", skb);
813 if (ath_tx_start(hw, skb, &txctl) != 0) {
814 ath_dbg(common, XMIT, "TX failed\n");
815 TX_STAT_INC(txctl.txq->axq_qnum, txfailed);
821 ieee80211_free_txskb(hw, skb);
824 static void ath9k_stop(struct ieee80211_hw *hw)
826 struct ath_softc *sc = hw->priv;
827 struct ath_hw *ah = sc->sc_ah;
828 struct ath_common *common = ath9k_hw_common(ah);
831 mutex_lock(&sc->mutex);
834 del_timer_sync(&sc->rx_poll_timer);
836 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
837 ath_dbg(common, ANY, "Device not present\n");
838 mutex_unlock(&sc->mutex);
842 /* Ensure HW is awake when we try to shut it down. */
845 spin_lock_bh(&sc->sc_pcu_lock);
847 /* prevent tasklets to enable interrupts once we disable them */
848 ah->imask &= ~ATH9K_INT_GLOBAL;
850 /* make sure h/w will not generate any interrupt
851 * before setting the invalid flag. */
852 ath9k_hw_disable_interrupts(ah);
854 spin_unlock_bh(&sc->sc_pcu_lock);
856 /* we can now sync irq and kill any running tasklets, since we already
857 * disabled interrupts and not holding a spin lock */
858 synchronize_irq(sc->irq);
859 tasklet_kill(&sc->intr_tq);
860 tasklet_kill(&sc->bcon_tasklet);
862 prev_idle = sc->ps_idle;
865 spin_lock_bh(&sc->sc_pcu_lock);
867 if (ah->led_pin >= 0) {
868 ath9k_hw_set_gpio(ah, ah->led_pin, 1);
869 ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
872 ath_prepare_reset(sc);
875 dev_kfree_skb_any(sc->rx.frag);
880 ah->curchan = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef);
882 ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
883 ath9k_hw_phy_disable(ah);
885 ath9k_hw_configpcipowersave(ah, true);
887 spin_unlock_bh(&sc->sc_pcu_lock);
889 ath9k_ps_restore(sc);
891 set_bit(SC_OP_INVALID, &sc->sc_flags);
892 sc->ps_idle = prev_idle;
894 mutex_unlock(&sc->mutex);
896 ath_dbg(common, CONFIG, "Driver halt\n");
899 static bool ath9k_uses_beacons(int type)
902 case NL80211_IFTYPE_AP:
903 case NL80211_IFTYPE_ADHOC:
904 case NL80211_IFTYPE_MESH_POINT:
911 static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
913 struct ath9k_vif_iter_data *iter_data = data;
916 if (iter_data->has_hw_macaddr) {
917 for (i = 0; i < ETH_ALEN; i++)
918 iter_data->mask[i] &=
919 ~(iter_data->hw_macaddr[i] ^ mac[i]);
921 memcpy(iter_data->hw_macaddr, mac, ETH_ALEN);
922 iter_data->has_hw_macaddr = true;
926 case NL80211_IFTYPE_AP:
929 case NL80211_IFTYPE_STATION:
930 iter_data->nstations++;
932 case NL80211_IFTYPE_ADHOC:
933 iter_data->nadhocs++;
935 case NL80211_IFTYPE_MESH_POINT:
936 iter_data->nmeshes++;
938 case NL80211_IFTYPE_WDS:
946 static void ath9k_sta_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
948 struct ath_softc *sc = data;
949 struct ath_vif *avp = (void *)vif->drv_priv;
951 if (vif->type != NL80211_IFTYPE_STATION)
954 if (avp->primary_sta_vif)
955 ath9k_set_assoc_state(sc, vif);
958 /* Called with sc->mutex held. */
959 void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
960 struct ieee80211_vif *vif,
961 struct ath9k_vif_iter_data *iter_data)
963 struct ath_softc *sc = hw->priv;
964 struct ath_hw *ah = sc->sc_ah;
965 struct ath_common *common = ath9k_hw_common(ah);
968 * Use the hardware MAC address as reference, the hardware uses it
969 * together with the BSSID mask when matching addresses.
971 memset(iter_data, 0, sizeof(*iter_data));
972 memset(&iter_data->mask, 0xff, ETH_ALEN);
975 ath9k_vif_iter(iter_data, vif->addr, vif);
977 /* Get list of all active MAC addresses */
978 ieee80211_iterate_active_interfaces_atomic(
979 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
980 ath9k_vif_iter, iter_data);
982 memcpy(common->macaddr, iter_data->hw_macaddr, ETH_ALEN);
985 /* Called with sc->mutex held. */
986 static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
987 struct ieee80211_vif *vif)
989 struct ath_softc *sc = hw->priv;
990 struct ath_hw *ah = sc->sc_ah;
991 struct ath_common *common = ath9k_hw_common(ah);
992 struct ath9k_vif_iter_data iter_data;
993 enum nl80211_iftype old_opmode = ah->opmode;
995 ath9k_calculate_iter_data(hw, vif, &iter_data);
997 memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
998 ath_hw_setbssidmask(common);
1000 if (iter_data.naps > 0) {
1001 ath9k_hw_set_tsfadjust(ah, true);
1002 ah->opmode = NL80211_IFTYPE_AP;
1004 ath9k_hw_set_tsfadjust(ah, false);
1006 if (iter_data.nmeshes)
1007 ah->opmode = NL80211_IFTYPE_MESH_POINT;
1008 else if (iter_data.nwds)
1009 ah->opmode = NL80211_IFTYPE_AP;
1010 else if (iter_data.nadhocs)
1011 ah->opmode = NL80211_IFTYPE_ADHOC;
1013 ah->opmode = NL80211_IFTYPE_STATION;
1016 ath9k_hw_setopmode(ah);
1018 if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0)
1019 ah->imask |= ATH9K_INT_TSFOOR;
1021 ah->imask &= ~ATH9K_INT_TSFOOR;
1023 ath9k_hw_set_interrupts(ah);
1026 * If we are changing the opmode to STATION,
1027 * a beacon sync needs to be done.
1029 if (ah->opmode == NL80211_IFTYPE_STATION &&
1030 old_opmode == NL80211_IFTYPE_AP &&
1031 test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
1032 ieee80211_iterate_active_interfaces_atomic(
1033 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1034 ath9k_sta_vif_iter, sc);
1038 static int ath9k_add_interface(struct ieee80211_hw *hw,
1039 struct ieee80211_vif *vif)
1041 struct ath_softc *sc = hw->priv;
1042 struct ath_hw *ah = sc->sc_ah;
1043 struct ath_common *common = ath9k_hw_common(ah);
1044 struct ath_vif *avp = (void *)vif->drv_priv;
1045 struct ath_node *an = &avp->mcast_node;
1047 mutex_lock(&sc->mutex);
1049 ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type);
1052 ath9k_ps_wakeup(sc);
1053 ath9k_calculate_summary_state(hw, vif);
1054 ath9k_ps_restore(sc);
1056 if (ath9k_uses_beacons(vif->type))
1057 ath9k_beacon_assign_slot(sc, vif);
1062 an->no_ps_filter = true;
1063 ath_tx_node_init(sc, an);
1065 mutex_unlock(&sc->mutex);
1069 static int ath9k_change_interface(struct ieee80211_hw *hw,
1070 struct ieee80211_vif *vif,
1071 enum nl80211_iftype new_type,
1074 struct ath_softc *sc = hw->priv;
1075 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1077 ath_dbg(common, CONFIG, "Change Interface\n");
1078 mutex_lock(&sc->mutex);
1080 if (ath9k_uses_beacons(vif->type))
1081 ath9k_beacon_remove_slot(sc, vif);
1083 vif->type = new_type;
1086 ath9k_ps_wakeup(sc);
1087 ath9k_calculate_summary_state(hw, vif);
1088 ath9k_ps_restore(sc);
1090 if (ath9k_uses_beacons(vif->type))
1091 ath9k_beacon_assign_slot(sc, vif);
1093 mutex_unlock(&sc->mutex);
1097 static void ath9k_remove_interface(struct ieee80211_hw *hw,
1098 struct ieee80211_vif *vif)
1100 struct ath_softc *sc = hw->priv;
1101 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1102 struct ath_vif *avp = (void *)vif->drv_priv;
1104 ath_dbg(common, CONFIG, "Detach Interface\n");
1106 mutex_lock(&sc->mutex);
1110 if (ath9k_uses_beacons(vif->type))
1111 ath9k_beacon_remove_slot(sc, vif);
1113 if (sc->csa_vif == vif)
1116 ath9k_ps_wakeup(sc);
1117 ath9k_calculate_summary_state(hw, NULL);
1118 ath9k_ps_restore(sc);
1120 ath_tx_node_cleanup(sc, &avp->mcast_node);
1122 mutex_unlock(&sc->mutex);
1125 static void ath9k_enable_ps(struct ath_softc *sc)
1127 struct ath_hw *ah = sc->sc_ah;
1128 struct ath_common *common = ath9k_hw_common(ah);
1130 sc->ps_enabled = true;
1131 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1132 if ((ah->imask & ATH9K_INT_TIM_TIMER) == 0) {
1133 ah->imask |= ATH9K_INT_TIM_TIMER;
1134 ath9k_hw_set_interrupts(ah);
1136 ath9k_hw_setrxabort(ah, 1);
1138 ath_dbg(common, PS, "PowerSave enabled\n");
1141 static void ath9k_disable_ps(struct ath_softc *sc)
1143 struct ath_hw *ah = sc->sc_ah;
1144 struct ath_common *common = ath9k_hw_common(ah);
1146 sc->ps_enabled = false;
1147 ath9k_hw_setpower(ah, ATH9K_PM_AWAKE);
1148 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1149 ath9k_hw_setrxabort(ah, 0);
1150 sc->ps_flags &= ~(PS_WAIT_FOR_BEACON |
1152 PS_WAIT_FOR_PSPOLL_DATA |
1153 PS_WAIT_FOR_TX_ACK);
1154 if (ah->imask & ATH9K_INT_TIM_TIMER) {
1155 ah->imask &= ~ATH9K_INT_TIM_TIMER;
1156 ath9k_hw_set_interrupts(ah);
1159 ath_dbg(common, PS, "PowerSave disabled\n");
1162 void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw)
1164 struct ath_softc *sc = hw->priv;
1165 struct ath_hw *ah = sc->sc_ah;
1166 struct ath_common *common = ath9k_hw_common(ah);
1169 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1170 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1174 ath9k_ps_wakeup(sc);
1175 rxfilter = ath9k_hw_getrxfilter(ah);
1176 ath9k_hw_setrxfilter(ah, rxfilter |
1177 ATH9K_RX_FILTER_PHYRADAR |
1178 ATH9K_RX_FILTER_PHYERR);
1180 /* TODO: usually this should not be neccesary, but for some reason
1181 * (or in some mode?) the trigger must be called after the
1182 * configuration, otherwise the register will have its values reset
1183 * (on my ar9220 to value 0x01002310)
1185 ath9k_spectral_scan_config(hw, sc->spectral_mode);
1186 ath9k_hw_ops(ah)->spectral_scan_trigger(ah);
1187 ath9k_ps_restore(sc);
1190 int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
1191 enum spectral_mode spectral_mode)
1193 struct ath_softc *sc = hw->priv;
1194 struct ath_hw *ah = sc->sc_ah;
1195 struct ath_common *common = ath9k_hw_common(ah);
1197 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1198 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1202 switch (spectral_mode) {
1203 case SPECTRAL_DISABLED:
1204 sc->spec_config.enabled = 0;
1206 case SPECTRAL_BACKGROUND:
1207 /* send endless samples.
1208 * TODO: is this really useful for "background"?
1210 sc->spec_config.endless = 1;
1211 sc->spec_config.enabled = 1;
1213 case SPECTRAL_CHANSCAN:
1214 case SPECTRAL_MANUAL:
1215 sc->spec_config.endless = 0;
1216 sc->spec_config.enabled = 1;
1222 ath9k_ps_wakeup(sc);
1223 ath9k_hw_ops(ah)->spectral_scan_config(ah, &sc->spec_config);
1224 ath9k_ps_restore(sc);
1226 sc->spectral_mode = spectral_mode;
1231 static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
1233 struct ath_softc *sc = hw->priv;
1234 struct ath_hw *ah = sc->sc_ah;
1235 struct ath_common *common = ath9k_hw_common(ah);
1236 struct ieee80211_conf *conf = &hw->conf;
1237 bool reset_channel = false;
1239 ath9k_ps_wakeup(sc);
1240 mutex_lock(&sc->mutex);
1242 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1243 sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1245 ath_cancel_work(sc);
1246 ath9k_stop_btcoex(sc);
1248 ath9k_start_btcoex(sc);
1250 * The chip needs a reset to properly wake up from
1253 reset_channel = ah->chip_fullsleep;
1258 * We just prepare to enable PS. We have to wait until our AP has
1259 * ACK'd our null data frame to disable RX otherwise we'll ignore
1260 * those ACKs and end up retransmitting the same null data frames.
1261 * IEEE80211_CONF_CHANGE_PS is only passed by mac80211 for STA mode.
1263 if (changed & IEEE80211_CONF_CHANGE_PS) {
1264 unsigned long flags;
1265 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1266 if (conf->flags & IEEE80211_CONF_PS)
1267 ath9k_enable_ps(sc);
1269 ath9k_disable_ps(sc);
1270 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1273 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
1274 if (conf->flags & IEEE80211_CONF_MONITOR) {
1275 ath_dbg(common, CONFIG, "Monitor mode is enabled\n");
1276 sc->sc_ah->is_monitoring = true;
1278 ath_dbg(common, CONFIG, "Monitor mode is disabled\n");
1279 sc->sc_ah->is_monitoring = false;
1283 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {
1284 if (ath_set_channel(sc, &hw->conf.chandef) < 0) {
1285 ath_err(common, "Unable to set channel\n");
1286 mutex_unlock(&sc->mutex);
1287 ath9k_ps_restore(sc);
1292 if (changed & IEEE80211_CONF_CHANGE_POWER) {
1293 ath_dbg(common, CONFIG, "Set power: %d\n", conf->power_level);
1294 sc->config.txpowlimit = 2 * conf->power_level;
1295 ath9k_cmn_update_txpow(ah, sc->curtxpow,
1296 sc->config.txpowlimit, &sc->curtxpow);
1299 mutex_unlock(&sc->mutex);
1300 ath9k_ps_restore(sc);
1305 #define SUPPORTED_FILTERS \
1306 (FIF_PROMISC_IN_BSS | \
1311 FIF_BCN_PRBRESP_PROMISC | \
1315 /* FIXME: sc->sc_full_reset ? */
1316 static void ath9k_configure_filter(struct ieee80211_hw *hw,
1317 unsigned int changed_flags,
1318 unsigned int *total_flags,
1321 struct ath_softc *sc = hw->priv;
1324 changed_flags &= SUPPORTED_FILTERS;
1325 *total_flags &= SUPPORTED_FILTERS;
1327 sc->rx.rxfilter = *total_flags;
1328 ath9k_ps_wakeup(sc);
1329 rfilt = ath_calcrxfilter(sc);
1330 ath9k_hw_setrxfilter(sc->sc_ah, rfilt);
1331 ath9k_ps_restore(sc);
1333 ath_dbg(ath9k_hw_common(sc->sc_ah), CONFIG, "Set HW RX filter: 0x%x\n",
1337 static int ath9k_sta_add(struct ieee80211_hw *hw,
1338 struct ieee80211_vif *vif,
1339 struct ieee80211_sta *sta)
1341 struct ath_softc *sc = hw->priv;
1342 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1343 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1344 struct ieee80211_key_conf ps_key = { };
1347 ath_node_attach(sc, sta, vif);
1349 if (vif->type != NL80211_IFTYPE_AP &&
1350 vif->type != NL80211_IFTYPE_AP_VLAN)
1353 key = ath_key_config(common, vif, sta, &ps_key);
1360 static void ath9k_del_ps_key(struct ath_softc *sc,
1361 struct ieee80211_vif *vif,
1362 struct ieee80211_sta *sta)
1364 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1365 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1366 struct ieee80211_key_conf ps_key = { .hw_key_idx = an->ps_key };
1371 ath_key_delete(common, &ps_key);
1375 static int ath9k_sta_remove(struct ieee80211_hw *hw,
1376 struct ieee80211_vif *vif,
1377 struct ieee80211_sta *sta)
1379 struct ath_softc *sc = hw->priv;
1381 ath9k_del_ps_key(sc, vif, sta);
1382 ath_node_detach(sc, sta);
1387 static void ath9k_sta_notify(struct ieee80211_hw *hw,
1388 struct ieee80211_vif *vif,
1389 enum sta_notify_cmd cmd,
1390 struct ieee80211_sta *sta)
1392 struct ath_softc *sc = hw->priv;
1393 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1396 case STA_NOTIFY_SLEEP:
1397 an->sleeping = true;
1398 ath_tx_aggr_sleep(sta, sc, an);
1400 case STA_NOTIFY_AWAKE:
1401 an->sleeping = false;
1402 ath_tx_aggr_wakeup(sc, an);
1407 static int ath9k_conf_tx(struct ieee80211_hw *hw,
1408 struct ieee80211_vif *vif, u16 queue,
1409 const struct ieee80211_tx_queue_params *params)
1411 struct ath_softc *sc = hw->priv;
1412 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1413 struct ath_txq *txq;
1414 struct ath9k_tx_queue_info qi;
1417 if (queue >= IEEE80211_NUM_ACS)
1420 txq = sc->tx.txq_map[queue];
1422 ath9k_ps_wakeup(sc);
1423 mutex_lock(&sc->mutex);
1425 memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
1427 qi.tqi_aifs = params->aifs;
1428 qi.tqi_cwmin = params->cw_min;
1429 qi.tqi_cwmax = params->cw_max;
1430 qi.tqi_burstTime = params->txop * 32;
1432 ath_dbg(common, CONFIG,
1433 "Configure tx [queue/halq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
1434 queue, txq->axq_qnum, params->aifs, params->cw_min,
1435 params->cw_max, params->txop);
1437 ath_update_max_aggr_framelen(sc, queue, qi.tqi_burstTime);
1438 ret = ath_txq_update(sc, txq->axq_qnum, &qi);
1440 ath_err(common, "TXQ Update failed\n");
1442 mutex_unlock(&sc->mutex);
1443 ath9k_ps_restore(sc);
1448 static int ath9k_set_key(struct ieee80211_hw *hw,
1449 enum set_key_cmd cmd,
1450 struct ieee80211_vif *vif,
1451 struct ieee80211_sta *sta,
1452 struct ieee80211_key_conf *key)
1454 struct ath_softc *sc = hw->priv;
1455 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1458 if (ath9k_modparam_nohwcrypt)
1461 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1462 vif->type == NL80211_IFTYPE_MESH_POINT) &&
1463 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
1464 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
1465 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
1467 * For now, disable hw crypto for the RSN IBSS group keys. This
1468 * could be optimized in the future to use a modified key cache
1469 * design to support per-STA RX GTK, but until that gets
1470 * implemented, use of software crypto for group addressed
1471 * frames is a acceptable to allow RSN IBSS to be used.
1476 mutex_lock(&sc->mutex);
1477 ath9k_ps_wakeup(sc);
1478 ath_dbg(common, CONFIG, "Set HW Key\n");
1483 ath9k_del_ps_key(sc, vif, sta);
1485 ret = ath_key_config(common, vif, sta, key);
1487 key->hw_key_idx = ret;
1488 /* push IV and Michael MIC generation to stack */
1489 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1490 if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
1491 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1492 if (sc->sc_ah->sw_mgmt_crypto &&
1493 key->cipher == WLAN_CIPHER_SUITE_CCMP)
1494 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
1499 ath_key_delete(common, key);
1505 ath9k_ps_restore(sc);
1506 mutex_unlock(&sc->mutex);
1511 static void ath9k_set_assoc_state(struct ath_softc *sc,
1512 struct ieee80211_vif *vif)
1514 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1515 struct ath_vif *avp = (void *)vif->drv_priv;
1516 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1517 unsigned long flags;
1519 set_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1520 avp->primary_sta_vif = true;
1523 * Set the AID, BSSID and do beacon-sync only when
1524 * the HW opmode is STATION.
1526 * But the primary bit is set above in any case.
1528 if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
1531 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1532 common->curaid = bss_conf->aid;
1533 ath9k_hw_write_associd(sc->sc_ah);
1535 sc->last_rssi = ATH_RSSI_DUMMY_MARKER;
1536 sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
1538 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1539 sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
1540 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1542 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1543 ath9k_mci_update_wlan_channels(sc, false);
1545 ath_dbg(common, CONFIG,
1546 "Primary Station interface: %pM, BSSID: %pM\n",
1547 vif->addr, common->curbssid);
1550 static void ath9k_bss_assoc_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
1552 struct ath_softc *sc = data;
1553 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1555 if (test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags))
1558 if (bss_conf->assoc)
1559 ath9k_set_assoc_state(sc, vif);
1562 static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
1563 struct ieee80211_vif *vif,
1564 struct ieee80211_bss_conf *bss_conf,
1568 (BSS_CHANGED_ASSOC | \
1569 BSS_CHANGED_IBSS | \
1570 BSS_CHANGED_BEACON_ENABLED)
1572 struct ath_softc *sc = hw->priv;
1573 struct ath_hw *ah = sc->sc_ah;
1574 struct ath_common *common = ath9k_hw_common(ah);
1575 struct ath_vif *avp = (void *)vif->drv_priv;
1578 ath9k_ps_wakeup(sc);
1579 mutex_lock(&sc->mutex);
1581 if (changed & BSS_CHANGED_ASSOC) {
1582 ath_dbg(common, CONFIG, "BSSID %pM Changed ASSOC %d\n",
1583 bss_conf->bssid, bss_conf->assoc);
1585 if (avp->primary_sta_vif && !bss_conf->assoc) {
1586 clear_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1587 avp->primary_sta_vif = false;
1589 if (ah->opmode == NL80211_IFTYPE_STATION)
1590 clear_bit(SC_OP_BEACONS, &sc->sc_flags);
1593 ieee80211_iterate_active_interfaces_atomic(
1594 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1595 ath9k_bss_assoc_iter, sc);
1597 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags) &&
1598 ah->opmode == NL80211_IFTYPE_STATION) {
1599 memset(common->curbssid, 0, ETH_ALEN);
1601 ath9k_hw_write_associd(sc->sc_ah);
1602 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1603 ath9k_mci_update_wlan_channels(sc, true);
1607 if (changed & BSS_CHANGED_IBSS) {
1608 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1609 common->curaid = bss_conf->aid;
1610 ath9k_hw_write_associd(sc->sc_ah);
1613 if ((changed & BSS_CHANGED_BEACON_ENABLED) ||
1614 (changed & BSS_CHANGED_BEACON_INT)) {
1615 if (ah->opmode == NL80211_IFTYPE_AP &&
1616 bss_conf->enable_beacon)
1617 ath9k_set_tsfadjust(sc, vif);
1618 if (ath9k_allow_beacon_config(sc, vif))
1619 ath9k_beacon_config(sc, vif, changed);
1622 if (changed & BSS_CHANGED_ERP_SLOT) {
1623 if (bss_conf->use_short_slot)
1627 if (vif->type == NL80211_IFTYPE_AP) {
1629 * Defer update, so that connected stations can adjust
1630 * their settings at the same time.
1631 * See beacon.c for more details
1633 sc->beacon.slottime = slottime;
1634 sc->beacon.updateslot = UPDATE;
1636 ah->slottime = slottime;
1637 ath9k_hw_init_global_settings(ah);
1641 if (changed & CHECK_ANI)
1644 mutex_unlock(&sc->mutex);
1645 ath9k_ps_restore(sc);
1650 static u64 ath9k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1652 struct ath_softc *sc = hw->priv;
1655 mutex_lock(&sc->mutex);
1656 ath9k_ps_wakeup(sc);
1657 tsf = ath9k_hw_gettsf64(sc->sc_ah);
1658 ath9k_ps_restore(sc);
1659 mutex_unlock(&sc->mutex);
1664 static void ath9k_set_tsf(struct ieee80211_hw *hw,
1665 struct ieee80211_vif *vif,
1668 struct ath_softc *sc = hw->priv;
1670 mutex_lock(&sc->mutex);
1671 ath9k_ps_wakeup(sc);
1672 ath9k_hw_settsf64(sc->sc_ah, tsf);
1673 ath9k_ps_restore(sc);
1674 mutex_unlock(&sc->mutex);
1677 static void ath9k_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1679 struct ath_softc *sc = hw->priv;
1681 mutex_lock(&sc->mutex);
1683 ath9k_ps_wakeup(sc);
1684 ath9k_hw_reset_tsf(sc->sc_ah);
1685 ath9k_ps_restore(sc);
1687 mutex_unlock(&sc->mutex);
1690 static int ath9k_ampdu_action(struct ieee80211_hw *hw,
1691 struct ieee80211_vif *vif,
1692 enum ieee80211_ampdu_mlme_action action,
1693 struct ieee80211_sta *sta,
1694 u16 tid, u16 *ssn, u8 buf_size)
1696 struct ath_softc *sc = hw->priv;
1700 mutex_lock(&sc->mutex);
1703 case IEEE80211_AMPDU_RX_START:
1705 case IEEE80211_AMPDU_RX_STOP:
1707 case IEEE80211_AMPDU_TX_START:
1708 ath9k_ps_wakeup(sc);
1709 ret = ath_tx_aggr_start(sc, sta, tid, ssn);
1711 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1712 ath9k_ps_restore(sc);
1714 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1715 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1717 case IEEE80211_AMPDU_TX_STOP_CONT:
1718 ath9k_ps_wakeup(sc);
1719 ath_tx_aggr_stop(sc, sta, tid);
1721 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1722 ath9k_ps_restore(sc);
1724 case IEEE80211_AMPDU_TX_OPERATIONAL:
1725 ath9k_ps_wakeup(sc);
1726 ath_tx_aggr_resume(sc, sta, tid);
1727 ath9k_ps_restore(sc);
1730 ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n");
1733 mutex_unlock(&sc->mutex);
1738 static int ath9k_get_survey(struct ieee80211_hw *hw, int idx,
1739 struct survey_info *survey)
1741 struct ath_softc *sc = hw->priv;
1742 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1743 struct ieee80211_supported_band *sband;
1744 struct ieee80211_channel *chan;
1745 unsigned long flags;
1748 spin_lock_irqsave(&common->cc_lock, flags);
1750 ath_update_survey_stats(sc);
1752 sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
1753 if (sband && idx >= sband->n_channels) {
1754 idx -= sband->n_channels;
1759 sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
1761 if (!sband || idx >= sband->n_channels) {
1762 spin_unlock_irqrestore(&common->cc_lock, flags);
1766 chan = &sband->channels[idx];
1767 pos = chan->hw_value;
1768 memcpy(survey, &sc->survey[pos], sizeof(*survey));
1769 survey->channel = chan;
1770 spin_unlock_irqrestore(&common->cc_lock, flags);
1775 static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
1777 struct ath_softc *sc = hw->priv;
1778 struct ath_hw *ah = sc->sc_ah;
1780 mutex_lock(&sc->mutex);
1781 ah->coverage_class = coverage_class;
1783 ath9k_ps_wakeup(sc);
1784 ath9k_hw_init_global_settings(ah);
1785 ath9k_ps_restore(sc);
1787 mutex_unlock(&sc->mutex);
1790 static void ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1792 struct ath_softc *sc = hw->priv;
1793 struct ath_hw *ah = sc->sc_ah;
1794 struct ath_common *common = ath9k_hw_common(ah);
1795 int timeout = 200; /* ms */
1799 mutex_lock(&sc->mutex);
1800 cancel_delayed_work_sync(&sc->tx_complete_work);
1802 if (ah->ah_flags & AH_UNPLUGGED) {
1803 ath_dbg(common, ANY, "Device has been unplugged!\n");
1804 mutex_unlock(&sc->mutex);
1808 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
1809 ath_dbg(common, ANY, "Device not present\n");
1810 mutex_unlock(&sc->mutex);
1814 for (j = 0; j < timeout; j++) {
1818 usleep_range(1000, 2000);
1820 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1821 if (!ATH_TXQ_SETUP(sc, i))
1824 npend = ath9k_has_pending_frames(sc, &sc->tx.txq[i]);
1835 ath9k_ps_wakeup(sc);
1836 spin_lock_bh(&sc->sc_pcu_lock);
1837 drain_txq = ath_drain_all_txq(sc);
1838 spin_unlock_bh(&sc->sc_pcu_lock);
1843 ath9k_ps_restore(sc);
1844 ieee80211_wake_queues(hw);
1847 ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
1848 mutex_unlock(&sc->mutex);
1851 static bool ath9k_tx_frames_pending(struct ieee80211_hw *hw)
1853 struct ath_softc *sc = hw->priv;
1856 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1857 if (!ATH_TXQ_SETUP(sc, i))
1860 if (ath9k_has_pending_frames(sc, &sc->tx.txq[i]))
1866 static int ath9k_tx_last_beacon(struct ieee80211_hw *hw)
1868 struct ath_softc *sc = hw->priv;
1869 struct ath_hw *ah = sc->sc_ah;
1870 struct ieee80211_vif *vif;
1871 struct ath_vif *avp;
1873 struct ath_tx_status ts;
1874 bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
1877 vif = sc->beacon.bslot[0];
1881 if (!vif->bss_conf.enable_beacon)
1884 avp = (void *)vif->drv_priv;
1886 if (!sc->beacon.tx_processed && !edma) {
1887 tasklet_disable(&sc->bcon_tasklet);
1890 if (!bf || !bf->bf_mpdu)
1893 status = ath9k_hw_txprocdesc(ah, bf->bf_desc, &ts);
1894 if (status == -EINPROGRESS)
1897 sc->beacon.tx_processed = true;
1898 sc->beacon.tx_last = !(ts.ts_status & ATH9K_TXERR_MASK);
1901 tasklet_enable(&sc->bcon_tasklet);
1904 return sc->beacon.tx_last;
1907 static int ath9k_get_stats(struct ieee80211_hw *hw,
1908 struct ieee80211_low_level_stats *stats)
1910 struct ath_softc *sc = hw->priv;
1911 struct ath_hw *ah = sc->sc_ah;
1912 struct ath9k_mib_stats *mib_stats = &ah->ah_mibStats;
1914 stats->dot11ACKFailureCount = mib_stats->ackrcv_bad;
1915 stats->dot11RTSFailureCount = mib_stats->rts_bad;
1916 stats->dot11FCSErrorCount = mib_stats->fcs_bad;
1917 stats->dot11RTSSuccessCount = mib_stats->rts_good;
1921 static u32 fill_chainmask(u32 cap, u32 new)
1926 for (i = 0; cap && new; i++, cap >>= 1) {
1927 if (!(cap & BIT(0)))
1939 static bool validate_antenna_mask(struct ath_hw *ah, u32 val)
1941 if (AR_SREV_9300_20_OR_LATER(ah))
1944 switch (val & 0x7) {
1950 return (ah->caps.rx_chainmask == 1);
1956 static int ath9k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
1958 struct ath_softc *sc = hw->priv;
1959 struct ath_hw *ah = sc->sc_ah;
1961 if (ah->caps.rx_chainmask != 1)
1964 if (!validate_antenna_mask(ah, rx_ant) || !tx_ant)
1967 sc->ant_rx = rx_ant;
1968 sc->ant_tx = tx_ant;
1970 if (ah->caps.rx_chainmask == 1)
1973 /* AR9100 runs into calibration issues if not all rx chains are enabled */
1974 if (AR_SREV_9100(ah))
1975 ah->rxchainmask = 0x7;
1977 ah->rxchainmask = fill_chainmask(ah->caps.rx_chainmask, rx_ant);
1979 ah->txchainmask = fill_chainmask(ah->caps.tx_chainmask, tx_ant);
1980 ath9k_reload_chainmask_settings(sc);
1985 static int ath9k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
1987 struct ath_softc *sc = hw->priv;
1989 *tx_ant = sc->ant_tx;
1990 *rx_ant = sc->ant_rx;
1994 #ifdef CONFIG_PM_SLEEP
1996 static void ath9k_wow_map_triggers(struct ath_softc *sc,
1997 struct cfg80211_wowlan *wowlan,
2000 if (wowlan->disconnect)
2001 *wow_triggers |= AH_WOW_LINK_CHANGE |
2003 if (wowlan->magic_pkt)
2004 *wow_triggers |= AH_WOW_MAGIC_PATTERN_EN;
2006 if (wowlan->n_patterns)
2007 *wow_triggers |= AH_WOW_USER_PATTERN_EN;
2009 sc->wow_enabled = *wow_triggers;
2013 static void ath9k_wow_add_disassoc_deauth_pattern(struct ath_softc *sc)
2015 struct ath_hw *ah = sc->sc_ah;
2016 struct ath_common *common = ath9k_hw_common(ah);
2017 int pattern_count = 0;
2019 u8 dis_deauth_pattern[MAX_PATTERN_SIZE];
2020 u8 dis_deauth_mask[MAX_PATTERN_SIZE];
2022 memset(dis_deauth_pattern, 0, MAX_PATTERN_SIZE);
2023 memset(dis_deauth_mask, 0, MAX_PATTERN_SIZE);
2026 * Create Dissassociate / Deauthenticate packet filter
2028 * 2 bytes 2 byte 6 bytes 6 bytes 6 bytes
2029 * +--------------+----------+---------+--------+--------+----
2030 * + Frame Control+ Duration + DA + SA + BSSID +
2031 * +--------------+----------+---------+--------+--------+----
2033 * The above is the management frame format for disassociate/
2034 * deauthenticate pattern, from this we need to match the first byte
2035 * of 'Frame Control' and DA, SA, and BSSID fields
2036 * (skipping 2nd byte of FC and Duration feild.
2038 * Disassociate pattern
2039 * --------------------
2040 * Frame control = 00 00 1010
2041 * DA, SA, BSSID = x:x:x:x:x:x
2042 * Pattern will be A0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2043 * | x:x:x:x:x:x -- 22 bytes
2045 * Deauthenticate pattern
2046 * ----------------------
2047 * Frame control = 00 00 1100
2048 * DA, SA, BSSID = x:x:x:x:x:x
2049 * Pattern will be C0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2050 * | x:x:x:x:x:x -- 22 bytes
2053 /* Create Disassociate Pattern first */
2057 /* Fill out the mask with all FF's */
2059 for (i = 0; i < MAX_PATTERN_MASK_SIZE; i++)
2060 dis_deauth_mask[i] = 0xff;
2062 /* copy the first byte of frame control field */
2063 dis_deauth_pattern[byte_cnt] = 0xa0;
2066 /* skip 2nd byte of frame control and Duration field */
2070 * need not match the destination mac address, it can be a broadcast
2071 * mac address or an unicast to this station
2075 /* copy the source mac address */
2076 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2080 /* copy the bssid, its same as the source mac address */
2082 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2084 /* Create Disassociate pattern mask */
2086 dis_deauth_mask[0] = 0xfe;
2087 dis_deauth_mask[1] = 0x03;
2088 dis_deauth_mask[2] = 0xc0;
2090 ath_dbg(common, WOW, "Adding disassoc/deauth patterns for WoW\n");
2092 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2093 pattern_count, byte_cnt);
2097 * for de-authenticate pattern, only the first byte of the frame
2098 * control field gets changed from 0xA0 to 0xC0
2100 dis_deauth_pattern[0] = 0xC0;
2102 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2103 pattern_count, byte_cnt);
2107 static void ath9k_wow_add_pattern(struct ath_softc *sc,
2108 struct cfg80211_wowlan *wowlan)
2110 struct ath_hw *ah = sc->sc_ah;
2111 struct ath9k_wow_pattern *wow_pattern = NULL;
2112 struct cfg80211_pkt_pattern *patterns = wowlan->patterns;
2116 if (!wowlan->n_patterns)
2120 * Add the new user configured patterns
2122 for (i = 0; i < wowlan->n_patterns; i++) {
2124 wow_pattern = kzalloc(sizeof(*wow_pattern), GFP_KERNEL);
2130 * TODO: convert the generic user space pattern to
2131 * appropriate chip specific/802.11 pattern.
2134 mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
2135 memset(wow_pattern->pattern_bytes, 0, MAX_PATTERN_SIZE);
2136 memset(wow_pattern->mask_bytes, 0, MAX_PATTERN_SIZE);
2137 memcpy(wow_pattern->pattern_bytes, patterns[i].pattern,
2138 patterns[i].pattern_len);
2139 memcpy(wow_pattern->mask_bytes, patterns[i].mask, mask_len);
2140 wow_pattern->pattern_len = patterns[i].pattern_len;
2143 * just need to take care of deauth and disssoc pattern,
2144 * make sure we don't overwrite them.
2147 ath9k_hw_wow_apply_pattern(ah, wow_pattern->pattern_bytes,
2148 wow_pattern->mask_bytes,
2150 wow_pattern->pattern_len);
2157 static int ath9k_suspend(struct ieee80211_hw *hw,
2158 struct cfg80211_wowlan *wowlan)
2160 struct ath_softc *sc = hw->priv;
2161 struct ath_hw *ah = sc->sc_ah;
2162 struct ath_common *common = ath9k_hw_common(ah);
2163 u32 wow_triggers_enabled = 0;
2166 mutex_lock(&sc->mutex);
2168 ath_cancel_work(sc);
2170 del_timer_sync(&sc->rx_poll_timer);
2172 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
2173 ath_dbg(common, ANY, "Device not present\n");
2178 if (WARN_ON(!wowlan)) {
2179 ath_dbg(common, WOW, "None of the WoW triggers enabled\n");
2184 if (!device_can_wakeup(sc->dev)) {
2185 ath_dbg(common, WOW, "device_can_wakeup failed, WoW is not enabled\n");
2191 * none of the sta vifs are associated
2192 * and we are not currently handling multivif
2193 * cases, for instance we have to seperately
2194 * configure 'keep alive frame' for each
2198 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
2199 ath_dbg(common, WOW, "None of the STA vifs are associated\n");
2204 if (sc->nvifs > 1) {
2205 ath_dbg(common, WOW, "WoW for multivif is not yet supported\n");
2210 ath9k_wow_map_triggers(sc, wowlan, &wow_triggers_enabled);
2212 ath_dbg(common, WOW, "WoW triggers enabled 0x%x\n",
2213 wow_triggers_enabled);
2215 ath9k_ps_wakeup(sc);
2217 ath9k_stop_btcoex(sc);
2220 * Enable wake up on recieving disassoc/deauth
2223 ath9k_wow_add_disassoc_deauth_pattern(sc);
2225 if (wow_triggers_enabled & AH_WOW_USER_PATTERN_EN)
2226 ath9k_wow_add_pattern(sc, wowlan);
2228 spin_lock_bh(&sc->sc_pcu_lock);
2230 * To avoid false wake, we enable beacon miss interrupt only
2231 * when we go to sleep. We save the current interrupt mask
2232 * so we can restore it after the system wakes up
2234 sc->wow_intr_before_sleep = ah->imask;
2235 ah->imask &= ~ATH9K_INT_GLOBAL;
2236 ath9k_hw_disable_interrupts(ah);
2237 ah->imask = ATH9K_INT_BMISS | ATH9K_INT_GLOBAL;
2238 ath9k_hw_set_interrupts(ah);
2239 ath9k_hw_enable_interrupts(ah);
2241 spin_unlock_bh(&sc->sc_pcu_lock);
2244 * we can now sync irq and kill any running tasklets, since we already
2245 * disabled interrupts and not holding a spin lock
2247 synchronize_irq(sc->irq);
2248 tasklet_kill(&sc->intr_tq);
2250 ath9k_hw_wow_enable(ah, wow_triggers_enabled);
2252 ath9k_ps_restore(sc);
2253 ath_dbg(common, ANY, "WoW enabled in ath9k\n");
2254 atomic_inc(&sc->wow_sleep_proc_intr);
2257 mutex_unlock(&sc->mutex);
2261 static int ath9k_resume(struct ieee80211_hw *hw)
2263 struct ath_softc *sc = hw->priv;
2264 struct ath_hw *ah = sc->sc_ah;
2265 struct ath_common *common = ath9k_hw_common(ah);
2268 mutex_lock(&sc->mutex);
2270 ath9k_ps_wakeup(sc);
2272 spin_lock_bh(&sc->sc_pcu_lock);
2274 ath9k_hw_disable_interrupts(ah);
2275 ah->imask = sc->wow_intr_before_sleep;
2276 ath9k_hw_set_interrupts(ah);
2277 ath9k_hw_enable_interrupts(ah);
2279 spin_unlock_bh(&sc->sc_pcu_lock);
2281 wow_status = ath9k_hw_wow_wakeup(ah);
2283 if (atomic_read(&sc->wow_got_bmiss_intr) == 0) {
2285 * some devices may not pick beacon miss
2286 * as the reason they woke up so we add
2287 * that here for that shortcoming.
2289 wow_status |= AH_WOW_BEACON_MISS;
2290 atomic_dec(&sc->wow_got_bmiss_intr);
2291 ath_dbg(common, ANY, "Beacon miss interrupt picked up during WoW sleep\n");
2294 atomic_dec(&sc->wow_sleep_proc_intr);
2297 ath_dbg(common, ANY, "Waking up due to WoW triggers %s with WoW status = %x\n",
2298 ath9k_hw_wow_event_to_string(wow_status), wow_status);
2301 ath_restart_work(sc);
2302 ath9k_start_btcoex(sc);
2304 ath9k_ps_restore(sc);
2305 mutex_unlock(&sc->mutex);
2310 static void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2312 struct ath_softc *sc = hw->priv;
2314 mutex_lock(&sc->mutex);
2315 device_init_wakeup(sc->dev, 1);
2316 device_set_wakeup_enable(sc->dev, enabled);
2317 mutex_unlock(&sc->mutex);
2321 static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
2323 struct ath_softc *sc = hw->priv;
2324 set_bit(SC_OP_SCANNING, &sc->sc_flags);
2327 static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
2329 struct ath_softc *sc = hw->priv;
2330 clear_bit(SC_OP_SCANNING, &sc->sc_flags);
2333 static void ath9k_channel_switch_beacon(struct ieee80211_hw *hw,
2334 struct ieee80211_vif *vif,
2335 struct cfg80211_chan_def *chandef)
2337 struct ath_softc *sc = hw->priv;
2339 /* mac80211 does not support CSA in multi-if cases (yet) */
2340 if (WARN_ON(sc->csa_vif))
2346 struct ieee80211_ops ath9k_ops = {
2348 .start = ath9k_start,
2350 .add_interface = ath9k_add_interface,
2351 .change_interface = ath9k_change_interface,
2352 .remove_interface = ath9k_remove_interface,
2353 .config = ath9k_config,
2354 .configure_filter = ath9k_configure_filter,
2355 .sta_add = ath9k_sta_add,
2356 .sta_remove = ath9k_sta_remove,
2357 .sta_notify = ath9k_sta_notify,
2358 .conf_tx = ath9k_conf_tx,
2359 .bss_info_changed = ath9k_bss_info_changed,
2360 .set_key = ath9k_set_key,
2361 .get_tsf = ath9k_get_tsf,
2362 .set_tsf = ath9k_set_tsf,
2363 .reset_tsf = ath9k_reset_tsf,
2364 .ampdu_action = ath9k_ampdu_action,
2365 .get_survey = ath9k_get_survey,
2366 .rfkill_poll = ath9k_rfkill_poll_state,
2367 .set_coverage_class = ath9k_set_coverage_class,
2368 .flush = ath9k_flush,
2369 .tx_frames_pending = ath9k_tx_frames_pending,
2370 .tx_last_beacon = ath9k_tx_last_beacon,
2371 .release_buffered_frames = ath9k_release_buffered_frames,
2372 .get_stats = ath9k_get_stats,
2373 .set_antenna = ath9k_set_antenna,
2374 .get_antenna = ath9k_get_antenna,
2376 #ifdef CONFIG_PM_SLEEP
2377 .suspend = ath9k_suspend,
2378 .resume = ath9k_resume,
2379 .set_wakeup = ath9k_set_wakeup,
2382 #ifdef CONFIG_ATH9K_DEBUGFS
2383 .get_et_sset_count = ath9k_get_et_sset_count,
2384 .get_et_stats = ath9k_get_et_stats,
2385 .get_et_strings = ath9k_get_et_strings,
2388 #if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_DEBUGFS)
2389 .sta_add_debugfs = ath9k_sta_add_debugfs,
2391 .sw_scan_start = ath9k_sw_scan_start,
2392 .sw_scan_complete = ath9k_sw_scan_complete,
2393 .channel_switch_beacon = ath9k_channel_switch_beacon,