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 ieee80211_hw *hw,
316 struct ath9k_channel *hchan)
320 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
323 r = ath_reset_internal(sc, hchan);
328 static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
329 struct ieee80211_vif *vif)
332 an = (struct ath_node *)sta->drv_priv;
338 ath_tx_node_init(sc, an);
340 if (sta->ht_cap.ht_supported) {
341 an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
342 sta->ht_cap.ampdu_factor);
343 an->mpdudensity = ath9k_parse_mpdudensity(sta->ht_cap.ampdu_density);
347 static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
349 struct ath_node *an = (struct ath_node *)sta->drv_priv;
350 ath_tx_node_cleanup(sc, an);
353 void ath9k_tasklet(unsigned long data)
355 struct ath_softc *sc = (struct ath_softc *)data;
356 struct ath_hw *ah = sc->sc_ah;
357 struct ath_common *common = ath9k_hw_common(ah);
358 enum ath_reset_type type;
360 u32 status = sc->intrstatus;
364 spin_lock(&sc->sc_pcu_lock);
366 if ((status & ATH9K_INT_FATAL) ||
367 (status & ATH9K_INT_BB_WATCHDOG)) {
369 if (status & ATH9K_INT_FATAL)
370 type = RESET_TYPE_FATAL_INT;
372 type = RESET_TYPE_BB_WATCHDOG;
374 ath9k_queue_reset(sc, type);
378 spin_lock_irqsave(&sc->sc_pm_lock, flags);
379 if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) {
381 * TSF sync does not look correct; remain awake to sync with
384 ath_dbg(common, PS, "TSFOOR - Sync with next Beacon\n");
385 sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC;
387 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
389 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
390 rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL |
393 rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
395 if (status & rxmask) {
396 /* Check for high priority Rx first */
397 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
398 (status & ATH9K_INT_RXHP))
399 ath_rx_tasklet(sc, 0, true);
401 ath_rx_tasklet(sc, 0, false);
404 if (status & ATH9K_INT_TX) {
405 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
406 ath_tx_edma_tasklet(sc);
411 ath9k_btcoex_handle_interrupt(sc, status);
414 /* re-enable hardware interrupt */
415 ath9k_hw_enable_interrupts(ah);
417 spin_unlock(&sc->sc_pcu_lock);
418 ath9k_ps_restore(sc);
421 irqreturn_t ath_isr(int irq, void *dev)
423 #define SCHED_INTR ( \
425 ATH9K_INT_BB_WATCHDOG | \
435 ATH9K_INT_GENTIMER | \
438 struct ath_softc *sc = dev;
439 struct ath_hw *ah = sc->sc_ah;
440 struct ath_common *common = ath9k_hw_common(ah);
441 enum ath9k_int status;
445 * The hardware is not ready/present, don't
446 * touch anything. Note this can happen early
447 * on if the IRQ is shared.
449 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
452 /* shared irq, not for us */
454 if (!ath9k_hw_intrpend(ah))
457 if (test_bit(SC_OP_HW_RESET, &sc->sc_flags)) {
458 ath9k_hw_kill_interrupts(ah);
463 * Figure out the reason(s) for the interrupt. Note
464 * that the hal returns a pseudo-ISR that may include
465 * bits we haven't explicitly enabled so we mask the
466 * value to insure we only process bits we requested.
468 ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */
469 status &= ah->imask; /* discard unasked-for bits */
472 * If there are no status bits set, then this interrupt was not
473 * for me (should have been caught above).
478 /* Cache the status */
479 sc->intrstatus = status;
481 if (status & SCHED_INTR)
485 * If a FATAL or RXORN interrupt is received, we have to reset the
488 if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) &&
489 !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)))
492 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
493 (status & ATH9K_INT_BB_WATCHDOG)) {
495 spin_lock(&common->cc_lock);
496 ath_hw_cycle_counters_update(common);
497 ar9003_hw_bb_watchdog_dbg_info(ah);
498 spin_unlock(&common->cc_lock);
502 #ifdef CONFIG_PM_SLEEP
503 if (status & ATH9K_INT_BMISS) {
504 if (atomic_read(&sc->wow_sleep_proc_intr) == 0) {
505 ath_dbg(common, ANY, "during WoW we got a BMISS\n");
506 atomic_inc(&sc->wow_got_bmiss_intr);
507 atomic_dec(&sc->wow_sleep_proc_intr);
511 if (status & ATH9K_INT_SWBA)
512 tasklet_schedule(&sc->bcon_tasklet);
514 if (status & ATH9K_INT_TXURN)
515 ath9k_hw_updatetxtriglevel(ah, true);
517 if (status & ATH9K_INT_RXEOL) {
518 ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
519 ath9k_hw_set_interrupts(ah);
522 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
523 if (status & ATH9K_INT_TIM_TIMER) {
524 if (ATH_DBG_WARN_ON_ONCE(sc->ps_idle))
526 /* Clear RxAbort bit so that we can
528 ath9k_setpower(sc, ATH9K_PM_AWAKE);
529 spin_lock(&sc->sc_pm_lock);
530 ath9k_hw_setrxabort(sc->sc_ah, 0);
531 sc->ps_flags |= PS_WAIT_FOR_BEACON;
532 spin_unlock(&sc->sc_pm_lock);
537 ath_debug_stat_interrupt(sc, status);
540 /* turn off every interrupt */
541 ath9k_hw_disable_interrupts(ah);
542 tasklet_schedule(&sc->intr_tq);
550 static int ath_reset(struct ath_softc *sc)
555 r = ath_reset_internal(sc, NULL);
556 ath9k_ps_restore(sc);
561 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type)
563 #ifdef CONFIG_ATH9K_DEBUGFS
564 RESET_STAT_INC(sc, type);
566 set_bit(SC_OP_HW_RESET, &sc->sc_flags);
567 ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
570 void ath_reset_work(struct work_struct *work)
572 struct ath_softc *sc = container_of(work, struct ath_softc, hw_reset_work);
577 /**********************/
578 /* mac80211 callbacks */
579 /**********************/
581 static int ath9k_start(struct ieee80211_hw *hw)
583 struct ath_softc *sc = hw->priv;
584 struct ath_hw *ah = sc->sc_ah;
585 struct ath_common *common = ath9k_hw_common(ah);
586 struct ieee80211_channel *curchan = hw->conf.chandef.chan;
587 struct ath9k_channel *init_channel;
590 ath_dbg(common, CONFIG,
591 "Starting driver with initial channel: %d MHz\n",
592 curchan->center_freq);
595 mutex_lock(&sc->mutex);
597 init_channel = ath9k_cmn_get_curchannel(hw, ah);
599 /* Reset SERDES registers */
600 ath9k_hw_configpcipowersave(ah, false);
603 * The basic interface to setting the hardware in a good
604 * state is ``reset''. On return the hardware is known to
605 * be powered up and with interrupts disabled. This must
606 * be followed by initialization of the appropriate bits
607 * and then setup of the interrupt mask.
609 spin_lock_bh(&sc->sc_pcu_lock);
611 atomic_set(&ah->intr_ref_cnt, -1);
613 r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
616 "Unable to reset hardware; reset status %d (freq %u MHz)\n",
617 r, curchan->center_freq);
618 ah->reset_power_on = false;
621 /* Setup our intr mask. */
622 ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL |
623 ATH9K_INT_RXORN | ATH9K_INT_FATAL |
626 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
627 ah->imask |= ATH9K_INT_RXHP |
629 ATH9K_INT_BB_WATCHDOG;
631 ah->imask |= ATH9K_INT_RX;
633 ah->imask |= ATH9K_INT_GTT;
635 if (ah->caps.hw_caps & ATH9K_HW_CAP_HT)
636 ah->imask |= ATH9K_INT_CST;
640 clear_bit(SC_OP_INVALID, &sc->sc_flags);
641 sc->sc_ah->is_monitoring = false;
643 if (!ath_complete_reset(sc, false))
644 ah->reset_power_on = false;
646 if (ah->led_pin >= 0) {
647 ath9k_hw_cfg_output(ah, ah->led_pin,
648 AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
649 ath9k_hw_set_gpio(ah, ah->led_pin, 0);
653 * Reset key cache to sane defaults (all entries cleared) instead of
654 * semi-random values after suspend/resume.
656 ath9k_cmn_init_crypto(sc->sc_ah);
658 spin_unlock_bh(&sc->sc_pcu_lock);
660 mutex_unlock(&sc->mutex);
662 ath9k_ps_restore(sc);
667 static void ath9k_tx(struct ieee80211_hw *hw,
668 struct ieee80211_tx_control *control,
671 struct ath_softc *sc = hw->priv;
672 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
673 struct ath_tx_control txctl;
674 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
677 if (sc->ps_enabled) {
679 * mac80211 does not set PM field for normal data frames, so we
680 * need to update that based on the current PS mode.
682 if (ieee80211_is_data(hdr->frame_control) &&
683 !ieee80211_is_nullfunc(hdr->frame_control) &&
684 !ieee80211_has_pm(hdr->frame_control)) {
686 "Add PM=1 for a TX frame while in PS mode\n");
687 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
691 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP)) {
693 * We are using PS-Poll and mac80211 can request TX while in
694 * power save mode. Need to wake up hardware for the TX to be
695 * completed and if needed, also for RX of buffered frames.
698 spin_lock_irqsave(&sc->sc_pm_lock, flags);
699 if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
700 ath9k_hw_setrxabort(sc->sc_ah, 0);
701 if (ieee80211_is_pspoll(hdr->frame_control)) {
703 "Sending PS-Poll to pick a buffered frame\n");
704 sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA;
706 ath_dbg(common, PS, "Wake up to complete TX\n");
707 sc->ps_flags |= PS_WAIT_FOR_TX_ACK;
710 * The actual restore operation will happen only after
711 * the ps_flags bit is cleared. We are just dropping
712 * the ps_usecount here.
714 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
715 ath9k_ps_restore(sc);
719 * Cannot tx while the hardware is in full sleep, it first needs a full
720 * chip reset to recover from that
722 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_FULL_SLEEP)) {
723 ath_err(common, "TX while HW is in FULL_SLEEP mode\n");
727 memset(&txctl, 0, sizeof(struct ath_tx_control));
728 txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)];
729 txctl.sta = control->sta;
731 ath_dbg(common, XMIT, "transmitting packet, skb: %p\n", skb);
733 if (ath_tx_start(hw, skb, &txctl) != 0) {
734 ath_dbg(common, XMIT, "TX failed\n");
735 TX_STAT_INC(txctl.txq->axq_qnum, txfailed);
741 ieee80211_free_txskb(hw, skb);
744 static void ath9k_stop(struct ieee80211_hw *hw)
746 struct ath_softc *sc = hw->priv;
747 struct ath_hw *ah = sc->sc_ah;
748 struct ath_common *common = ath9k_hw_common(ah);
751 mutex_lock(&sc->mutex);
754 del_timer_sync(&sc->rx_poll_timer);
756 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
757 ath_dbg(common, ANY, "Device not present\n");
758 mutex_unlock(&sc->mutex);
762 /* Ensure HW is awake when we try to shut it down. */
765 spin_lock_bh(&sc->sc_pcu_lock);
767 /* prevent tasklets to enable interrupts once we disable them */
768 ah->imask &= ~ATH9K_INT_GLOBAL;
770 /* make sure h/w will not generate any interrupt
771 * before setting the invalid flag. */
772 ath9k_hw_disable_interrupts(ah);
774 spin_unlock_bh(&sc->sc_pcu_lock);
776 /* we can now sync irq and kill any running tasklets, since we already
777 * disabled interrupts and not holding a spin lock */
778 synchronize_irq(sc->irq);
779 tasklet_kill(&sc->intr_tq);
780 tasklet_kill(&sc->bcon_tasklet);
782 prev_idle = sc->ps_idle;
785 spin_lock_bh(&sc->sc_pcu_lock);
787 if (ah->led_pin >= 0) {
788 ath9k_hw_set_gpio(ah, ah->led_pin, 1);
789 ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
792 ath_prepare_reset(sc);
795 dev_kfree_skb_any(sc->rx.frag);
800 ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
802 ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
803 ath9k_hw_phy_disable(ah);
805 ath9k_hw_configpcipowersave(ah, true);
807 spin_unlock_bh(&sc->sc_pcu_lock);
809 ath9k_ps_restore(sc);
811 set_bit(SC_OP_INVALID, &sc->sc_flags);
812 sc->ps_idle = prev_idle;
814 mutex_unlock(&sc->mutex);
816 ath_dbg(common, CONFIG, "Driver halt\n");
819 bool ath9k_uses_beacons(int type)
822 case NL80211_IFTYPE_AP:
823 case NL80211_IFTYPE_ADHOC:
824 case NL80211_IFTYPE_MESH_POINT:
831 static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
833 struct ath9k_vif_iter_data *iter_data = data;
836 if (iter_data->has_hw_macaddr) {
837 for (i = 0; i < ETH_ALEN; i++)
838 iter_data->mask[i] &=
839 ~(iter_data->hw_macaddr[i] ^ mac[i]);
841 memcpy(iter_data->hw_macaddr, mac, ETH_ALEN);
842 iter_data->has_hw_macaddr = true;
846 case NL80211_IFTYPE_AP:
849 case NL80211_IFTYPE_STATION:
850 iter_data->nstations++;
852 case NL80211_IFTYPE_ADHOC:
853 iter_data->nadhocs++;
855 case NL80211_IFTYPE_MESH_POINT:
856 iter_data->nmeshes++;
858 case NL80211_IFTYPE_WDS:
866 static void ath9k_sta_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
868 struct ath_softc *sc = data;
869 struct ath_vif *avp = (void *)vif->drv_priv;
871 if (vif->type != NL80211_IFTYPE_STATION)
874 if (avp->primary_sta_vif)
875 ath9k_set_assoc_state(sc, vif);
878 /* Called with sc->mutex held. */
879 void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
880 struct ieee80211_vif *vif,
881 struct ath9k_vif_iter_data *iter_data)
883 struct ath_softc *sc = hw->priv;
884 struct ath_hw *ah = sc->sc_ah;
885 struct ath_common *common = ath9k_hw_common(ah);
888 * Use the hardware MAC address as reference, the hardware uses it
889 * together with the BSSID mask when matching addresses.
891 memset(iter_data, 0, sizeof(*iter_data));
892 memset(&iter_data->mask, 0xff, ETH_ALEN);
895 ath9k_vif_iter(iter_data, vif->addr, vif);
897 /* Get list of all active MAC addresses */
898 ieee80211_iterate_active_interfaces_atomic(
899 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
900 ath9k_vif_iter, iter_data);
902 memcpy(common->macaddr, iter_data->hw_macaddr, ETH_ALEN);
905 /* Called with sc->mutex held. */
906 static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
907 struct ieee80211_vif *vif)
909 struct ath_softc *sc = hw->priv;
910 struct ath_hw *ah = sc->sc_ah;
911 struct ath_common *common = ath9k_hw_common(ah);
912 struct ath9k_vif_iter_data iter_data;
913 enum nl80211_iftype old_opmode = ah->opmode;
915 ath9k_calculate_iter_data(hw, vif, &iter_data);
917 memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
918 ath_hw_setbssidmask(common);
920 if (iter_data.naps > 0) {
921 ath9k_hw_set_tsfadjust(ah, true);
922 ah->opmode = NL80211_IFTYPE_AP;
924 ath9k_hw_set_tsfadjust(ah, false);
926 if (iter_data.nmeshes)
927 ah->opmode = NL80211_IFTYPE_MESH_POINT;
928 else if (iter_data.nwds)
929 ah->opmode = NL80211_IFTYPE_AP;
930 else if (iter_data.nadhocs)
931 ah->opmode = NL80211_IFTYPE_ADHOC;
933 ah->opmode = NL80211_IFTYPE_STATION;
936 ath9k_hw_setopmode(ah);
938 if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0)
939 ah->imask |= ATH9K_INT_TSFOOR;
941 ah->imask &= ~ATH9K_INT_TSFOOR;
943 ath9k_hw_set_interrupts(ah);
946 * If we are changing the opmode to STATION,
947 * a beacon sync needs to be done.
949 if (ah->opmode == NL80211_IFTYPE_STATION &&
950 old_opmode == NL80211_IFTYPE_AP &&
951 test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
952 ieee80211_iterate_active_interfaces_atomic(
953 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
954 ath9k_sta_vif_iter, sc);
958 static int ath9k_add_interface(struct ieee80211_hw *hw,
959 struct ieee80211_vif *vif)
961 struct ath_softc *sc = hw->priv;
962 struct ath_hw *ah = sc->sc_ah;
963 struct ath_common *common = ath9k_hw_common(ah);
964 struct ath_vif *avp = (void *)vif->drv_priv;
965 struct ath_node *an = &avp->mcast_node;
967 mutex_lock(&sc->mutex);
969 ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type);
973 ath9k_calculate_summary_state(hw, vif);
974 ath9k_ps_restore(sc);
976 if (ath9k_uses_beacons(vif->type))
977 ath9k_beacon_assign_slot(sc, vif);
982 an->no_ps_filter = true;
983 ath_tx_node_init(sc, an);
985 mutex_unlock(&sc->mutex);
989 static int ath9k_change_interface(struct ieee80211_hw *hw,
990 struct ieee80211_vif *vif,
991 enum nl80211_iftype new_type,
994 struct ath_softc *sc = hw->priv;
995 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
997 ath_dbg(common, CONFIG, "Change Interface\n");
998 mutex_lock(&sc->mutex);
1000 if (ath9k_uses_beacons(vif->type))
1001 ath9k_beacon_remove_slot(sc, vif);
1003 vif->type = new_type;
1006 ath9k_ps_wakeup(sc);
1007 ath9k_calculate_summary_state(hw, vif);
1008 ath9k_ps_restore(sc);
1010 if (ath9k_uses_beacons(vif->type))
1011 ath9k_beacon_assign_slot(sc, vif);
1013 mutex_unlock(&sc->mutex);
1017 static void ath9k_remove_interface(struct ieee80211_hw *hw,
1018 struct ieee80211_vif *vif)
1020 struct ath_softc *sc = hw->priv;
1021 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1022 struct ath_vif *avp = (void *)vif->drv_priv;
1024 ath_dbg(common, CONFIG, "Detach Interface\n");
1026 mutex_lock(&sc->mutex);
1030 if (ath9k_uses_beacons(vif->type))
1031 ath9k_beacon_remove_slot(sc, vif);
1033 if (sc->csa_vif == vif)
1036 ath9k_ps_wakeup(sc);
1037 ath9k_calculate_summary_state(hw, NULL);
1038 ath9k_ps_restore(sc);
1040 ath_tx_node_cleanup(sc, &avp->mcast_node);
1042 mutex_unlock(&sc->mutex);
1045 static void ath9k_enable_ps(struct ath_softc *sc)
1047 struct ath_hw *ah = sc->sc_ah;
1048 struct ath_common *common = ath9k_hw_common(ah);
1050 sc->ps_enabled = true;
1051 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1052 if ((ah->imask & ATH9K_INT_TIM_TIMER) == 0) {
1053 ah->imask |= ATH9K_INT_TIM_TIMER;
1054 ath9k_hw_set_interrupts(ah);
1056 ath9k_hw_setrxabort(ah, 1);
1058 ath_dbg(common, PS, "PowerSave enabled\n");
1061 static void ath9k_disable_ps(struct ath_softc *sc)
1063 struct ath_hw *ah = sc->sc_ah;
1064 struct ath_common *common = ath9k_hw_common(ah);
1066 sc->ps_enabled = false;
1067 ath9k_hw_setpower(ah, ATH9K_PM_AWAKE);
1068 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1069 ath9k_hw_setrxabort(ah, 0);
1070 sc->ps_flags &= ~(PS_WAIT_FOR_BEACON |
1072 PS_WAIT_FOR_PSPOLL_DATA |
1073 PS_WAIT_FOR_TX_ACK);
1074 if (ah->imask & ATH9K_INT_TIM_TIMER) {
1075 ah->imask &= ~ATH9K_INT_TIM_TIMER;
1076 ath9k_hw_set_interrupts(ah);
1079 ath_dbg(common, PS, "PowerSave disabled\n");
1082 void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw)
1084 struct ath_softc *sc = hw->priv;
1085 struct ath_hw *ah = sc->sc_ah;
1086 struct ath_common *common = ath9k_hw_common(ah);
1089 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1090 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1094 ath9k_ps_wakeup(sc);
1095 rxfilter = ath9k_hw_getrxfilter(ah);
1096 ath9k_hw_setrxfilter(ah, rxfilter |
1097 ATH9K_RX_FILTER_PHYRADAR |
1098 ATH9K_RX_FILTER_PHYERR);
1100 /* TODO: usually this should not be neccesary, but for some reason
1101 * (or in some mode?) the trigger must be called after the
1102 * configuration, otherwise the register will have its values reset
1103 * (on my ar9220 to value 0x01002310)
1105 ath9k_spectral_scan_config(hw, sc->spectral_mode);
1106 ath9k_hw_ops(ah)->spectral_scan_trigger(ah);
1107 ath9k_ps_restore(sc);
1110 int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
1111 enum spectral_mode spectral_mode)
1113 struct ath_softc *sc = hw->priv;
1114 struct ath_hw *ah = sc->sc_ah;
1115 struct ath_common *common = ath9k_hw_common(ah);
1117 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1118 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1122 switch (spectral_mode) {
1123 case SPECTRAL_DISABLED:
1124 sc->spec_config.enabled = 0;
1126 case SPECTRAL_BACKGROUND:
1127 /* send endless samples.
1128 * TODO: is this really useful for "background"?
1130 sc->spec_config.endless = 1;
1131 sc->spec_config.enabled = 1;
1133 case SPECTRAL_CHANSCAN:
1134 case SPECTRAL_MANUAL:
1135 sc->spec_config.endless = 0;
1136 sc->spec_config.enabled = 1;
1142 ath9k_ps_wakeup(sc);
1143 ath9k_hw_ops(ah)->spectral_scan_config(ah, &sc->spec_config);
1144 ath9k_ps_restore(sc);
1146 sc->spectral_mode = spectral_mode;
1151 static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
1153 struct ath_softc *sc = hw->priv;
1154 struct ath_hw *ah = sc->sc_ah;
1155 struct ath_common *common = ath9k_hw_common(ah);
1156 struct ieee80211_conf *conf = &hw->conf;
1157 bool reset_channel = false;
1159 ath9k_ps_wakeup(sc);
1160 mutex_lock(&sc->mutex);
1162 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1163 sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1165 ath_cancel_work(sc);
1166 ath9k_stop_btcoex(sc);
1168 ath9k_start_btcoex(sc);
1170 * The chip needs a reset to properly wake up from
1173 reset_channel = ah->chip_fullsleep;
1178 * We just prepare to enable PS. We have to wait until our AP has
1179 * ACK'd our null data frame to disable RX otherwise we'll ignore
1180 * those ACKs and end up retransmitting the same null data frames.
1181 * IEEE80211_CONF_CHANGE_PS is only passed by mac80211 for STA mode.
1183 if (changed & IEEE80211_CONF_CHANGE_PS) {
1184 unsigned long flags;
1185 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1186 if (conf->flags & IEEE80211_CONF_PS)
1187 ath9k_enable_ps(sc);
1189 ath9k_disable_ps(sc);
1190 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1193 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
1194 if (conf->flags & IEEE80211_CONF_MONITOR) {
1195 ath_dbg(common, CONFIG, "Monitor mode is enabled\n");
1196 sc->sc_ah->is_monitoring = true;
1198 ath_dbg(common, CONFIG, "Monitor mode is disabled\n");
1199 sc->sc_ah->is_monitoring = false;
1203 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {
1204 struct ieee80211_channel *curchan = hw->conf.chandef.chan;
1205 int pos = curchan->hw_value;
1207 unsigned long flags;
1210 old_pos = ah->curchan - &ah->channels[0];
1212 ath_dbg(common, CONFIG, "Set channel: %d MHz width: %d\n",
1213 curchan->center_freq, hw->conf.chandef.width);
1215 /* update survey stats for the old channel before switching */
1216 spin_lock_irqsave(&common->cc_lock, flags);
1217 ath_update_survey_stats(sc);
1218 spin_unlock_irqrestore(&common->cc_lock, flags);
1220 ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
1224 * If the operating channel changes, change the survey in-use flags
1226 * Reset the survey data for the new channel, unless we're switching
1227 * back to the operating channel from an off-channel operation.
1229 if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) &&
1230 sc->cur_survey != &sc->survey[pos]) {
1233 sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
1235 sc->cur_survey = &sc->survey[pos];
1237 memset(sc->cur_survey, 0, sizeof(struct survey_info));
1238 sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
1239 } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
1240 memset(&sc->survey[pos], 0, sizeof(struct survey_info));
1243 if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
1244 ath_err(common, "Unable to set channel\n");
1245 mutex_unlock(&sc->mutex);
1246 ath9k_ps_restore(sc);
1251 * The most recent snapshot of channel->noisefloor for the old
1252 * channel is only available after the hardware reset. Copy it to
1253 * the survey stats now.
1256 ath_update_survey_nf(sc, old_pos);
1259 * Enable radar pulse detection if on a DFS channel. Spectral
1260 * scanning and radar detection can not be used concurrently.
1262 if (hw->conf.radar_enabled) {
1265 /* set HW specific DFS configuration */
1266 ath9k_hw_set_radar_params(ah);
1267 rxfilter = ath9k_hw_getrxfilter(ah);
1268 rxfilter |= ATH9K_RX_FILTER_PHYRADAR |
1269 ATH9K_RX_FILTER_PHYERR;
1270 ath9k_hw_setrxfilter(ah, rxfilter);
1271 ath_dbg(common, DFS, "DFS enabled at freq %d\n",
1272 curchan->center_freq);
1274 /* perform spectral scan if requested. */
1275 if (test_bit(SC_OP_SCANNING, &sc->sc_flags) &&
1276 sc->spectral_mode == SPECTRAL_CHANSCAN)
1277 ath9k_spectral_scan_trigger(hw);
1281 if (changed & IEEE80211_CONF_CHANGE_POWER) {
1282 ath_dbg(common, CONFIG, "Set power: %d\n", conf->power_level);
1283 sc->config.txpowlimit = 2 * conf->power_level;
1284 ath9k_cmn_update_txpow(ah, sc->curtxpow,
1285 sc->config.txpowlimit, &sc->curtxpow);
1288 mutex_unlock(&sc->mutex);
1289 ath9k_ps_restore(sc);
1294 #define SUPPORTED_FILTERS \
1295 (FIF_PROMISC_IN_BSS | \
1300 FIF_BCN_PRBRESP_PROMISC | \
1304 /* FIXME: sc->sc_full_reset ? */
1305 static void ath9k_configure_filter(struct ieee80211_hw *hw,
1306 unsigned int changed_flags,
1307 unsigned int *total_flags,
1310 struct ath_softc *sc = hw->priv;
1313 changed_flags &= SUPPORTED_FILTERS;
1314 *total_flags &= SUPPORTED_FILTERS;
1316 sc->rx.rxfilter = *total_flags;
1317 ath9k_ps_wakeup(sc);
1318 rfilt = ath_calcrxfilter(sc);
1319 ath9k_hw_setrxfilter(sc->sc_ah, rfilt);
1320 ath9k_ps_restore(sc);
1322 ath_dbg(ath9k_hw_common(sc->sc_ah), CONFIG, "Set HW RX filter: 0x%x\n",
1326 static int ath9k_sta_add(struct ieee80211_hw *hw,
1327 struct ieee80211_vif *vif,
1328 struct ieee80211_sta *sta)
1330 struct ath_softc *sc = hw->priv;
1331 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1332 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1333 struct ieee80211_key_conf ps_key = { };
1336 ath_node_attach(sc, sta, vif);
1338 if (vif->type != NL80211_IFTYPE_AP &&
1339 vif->type != NL80211_IFTYPE_AP_VLAN)
1342 key = ath_key_config(common, vif, sta, &ps_key);
1349 static void ath9k_del_ps_key(struct ath_softc *sc,
1350 struct ieee80211_vif *vif,
1351 struct ieee80211_sta *sta)
1353 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1354 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1355 struct ieee80211_key_conf ps_key = { .hw_key_idx = an->ps_key };
1360 ath_key_delete(common, &ps_key);
1364 static int ath9k_sta_remove(struct ieee80211_hw *hw,
1365 struct ieee80211_vif *vif,
1366 struct ieee80211_sta *sta)
1368 struct ath_softc *sc = hw->priv;
1370 ath9k_del_ps_key(sc, vif, sta);
1371 ath_node_detach(sc, sta);
1376 static void ath9k_sta_notify(struct ieee80211_hw *hw,
1377 struct ieee80211_vif *vif,
1378 enum sta_notify_cmd cmd,
1379 struct ieee80211_sta *sta)
1381 struct ath_softc *sc = hw->priv;
1382 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1385 case STA_NOTIFY_SLEEP:
1386 an->sleeping = true;
1387 ath_tx_aggr_sleep(sta, sc, an);
1389 case STA_NOTIFY_AWAKE:
1390 an->sleeping = false;
1391 ath_tx_aggr_wakeup(sc, an);
1396 static int ath9k_conf_tx(struct ieee80211_hw *hw,
1397 struct ieee80211_vif *vif, u16 queue,
1398 const struct ieee80211_tx_queue_params *params)
1400 struct ath_softc *sc = hw->priv;
1401 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1402 struct ath_txq *txq;
1403 struct ath9k_tx_queue_info qi;
1406 if (queue >= IEEE80211_NUM_ACS)
1409 txq = sc->tx.txq_map[queue];
1411 ath9k_ps_wakeup(sc);
1412 mutex_lock(&sc->mutex);
1414 memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
1416 qi.tqi_aifs = params->aifs;
1417 qi.tqi_cwmin = params->cw_min;
1418 qi.tqi_cwmax = params->cw_max;
1419 qi.tqi_burstTime = params->txop * 32;
1421 ath_dbg(common, CONFIG,
1422 "Configure tx [queue/halq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
1423 queue, txq->axq_qnum, params->aifs, params->cw_min,
1424 params->cw_max, params->txop);
1426 ath_update_max_aggr_framelen(sc, queue, qi.tqi_burstTime);
1427 ret = ath_txq_update(sc, txq->axq_qnum, &qi);
1429 ath_err(common, "TXQ Update failed\n");
1431 mutex_unlock(&sc->mutex);
1432 ath9k_ps_restore(sc);
1437 static int ath9k_set_key(struct ieee80211_hw *hw,
1438 enum set_key_cmd cmd,
1439 struct ieee80211_vif *vif,
1440 struct ieee80211_sta *sta,
1441 struct ieee80211_key_conf *key)
1443 struct ath_softc *sc = hw->priv;
1444 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1447 if (ath9k_modparam_nohwcrypt)
1450 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1451 vif->type == NL80211_IFTYPE_MESH_POINT) &&
1452 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
1453 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
1454 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
1456 * For now, disable hw crypto for the RSN IBSS group keys. This
1457 * could be optimized in the future to use a modified key cache
1458 * design to support per-STA RX GTK, but until that gets
1459 * implemented, use of software crypto for group addressed
1460 * frames is a acceptable to allow RSN IBSS to be used.
1465 mutex_lock(&sc->mutex);
1466 ath9k_ps_wakeup(sc);
1467 ath_dbg(common, CONFIG, "Set HW Key\n");
1472 ath9k_del_ps_key(sc, vif, sta);
1474 ret = ath_key_config(common, vif, sta, key);
1476 key->hw_key_idx = ret;
1477 /* push IV and Michael MIC generation to stack */
1478 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1479 if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
1480 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1481 if (sc->sc_ah->sw_mgmt_crypto &&
1482 key->cipher == WLAN_CIPHER_SUITE_CCMP)
1483 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
1488 ath_key_delete(common, key);
1494 ath9k_ps_restore(sc);
1495 mutex_unlock(&sc->mutex);
1500 static void ath9k_set_assoc_state(struct ath_softc *sc,
1501 struct ieee80211_vif *vif)
1503 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1504 struct ath_vif *avp = (void *)vif->drv_priv;
1505 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1506 unsigned long flags;
1508 set_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1509 avp->primary_sta_vif = true;
1512 * Set the AID, BSSID and do beacon-sync only when
1513 * the HW opmode is STATION.
1515 * But the primary bit is set above in any case.
1517 if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
1520 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1521 common->curaid = bss_conf->aid;
1522 ath9k_hw_write_associd(sc->sc_ah);
1524 sc->last_rssi = ATH_RSSI_DUMMY_MARKER;
1525 sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
1527 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1528 sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
1529 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1531 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1532 ath9k_mci_update_wlan_channels(sc, false);
1534 ath_dbg(common, CONFIG,
1535 "Primary Station interface: %pM, BSSID: %pM\n",
1536 vif->addr, common->curbssid);
1539 static void ath9k_bss_assoc_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
1541 struct ath_softc *sc = data;
1542 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1544 if (test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags))
1547 if (bss_conf->assoc)
1548 ath9k_set_assoc_state(sc, vif);
1551 static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
1552 struct ieee80211_vif *vif,
1553 struct ieee80211_bss_conf *bss_conf,
1557 (BSS_CHANGED_ASSOC | \
1558 BSS_CHANGED_IBSS | \
1559 BSS_CHANGED_BEACON_ENABLED)
1561 struct ath_softc *sc = hw->priv;
1562 struct ath_hw *ah = sc->sc_ah;
1563 struct ath_common *common = ath9k_hw_common(ah);
1564 struct ath_vif *avp = (void *)vif->drv_priv;
1567 ath9k_ps_wakeup(sc);
1568 mutex_lock(&sc->mutex);
1570 if (changed & BSS_CHANGED_ASSOC) {
1571 ath_dbg(common, CONFIG, "BSSID %pM Changed ASSOC %d\n",
1572 bss_conf->bssid, bss_conf->assoc);
1574 if (avp->primary_sta_vif && !bss_conf->assoc) {
1575 clear_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1576 avp->primary_sta_vif = false;
1578 if (ah->opmode == NL80211_IFTYPE_STATION)
1579 clear_bit(SC_OP_BEACONS, &sc->sc_flags);
1582 ieee80211_iterate_active_interfaces_atomic(
1583 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1584 ath9k_bss_assoc_iter, sc);
1586 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags) &&
1587 ah->opmode == NL80211_IFTYPE_STATION) {
1588 memset(common->curbssid, 0, ETH_ALEN);
1590 ath9k_hw_write_associd(sc->sc_ah);
1591 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1592 ath9k_mci_update_wlan_channels(sc, true);
1596 if (changed & BSS_CHANGED_IBSS) {
1597 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1598 common->curaid = bss_conf->aid;
1599 ath9k_hw_write_associd(sc->sc_ah);
1602 if ((changed & BSS_CHANGED_BEACON_ENABLED) ||
1603 (changed & BSS_CHANGED_BEACON_INT)) {
1604 if (ah->opmode == NL80211_IFTYPE_AP &&
1605 bss_conf->enable_beacon)
1606 ath9k_set_tsfadjust(sc, vif);
1607 if (ath9k_allow_beacon_config(sc, vif))
1608 ath9k_beacon_config(sc, vif, changed);
1611 if (changed & BSS_CHANGED_ERP_SLOT) {
1612 if (bss_conf->use_short_slot)
1616 if (vif->type == NL80211_IFTYPE_AP) {
1618 * Defer update, so that connected stations can adjust
1619 * their settings at the same time.
1620 * See beacon.c for more details
1622 sc->beacon.slottime = slottime;
1623 sc->beacon.updateslot = UPDATE;
1625 ah->slottime = slottime;
1626 ath9k_hw_init_global_settings(ah);
1630 if (changed & CHECK_ANI)
1633 mutex_unlock(&sc->mutex);
1634 ath9k_ps_restore(sc);
1639 static u64 ath9k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1641 struct ath_softc *sc = hw->priv;
1644 mutex_lock(&sc->mutex);
1645 ath9k_ps_wakeup(sc);
1646 tsf = ath9k_hw_gettsf64(sc->sc_ah);
1647 ath9k_ps_restore(sc);
1648 mutex_unlock(&sc->mutex);
1653 static void ath9k_set_tsf(struct ieee80211_hw *hw,
1654 struct ieee80211_vif *vif,
1657 struct ath_softc *sc = hw->priv;
1659 mutex_lock(&sc->mutex);
1660 ath9k_ps_wakeup(sc);
1661 ath9k_hw_settsf64(sc->sc_ah, tsf);
1662 ath9k_ps_restore(sc);
1663 mutex_unlock(&sc->mutex);
1666 static void ath9k_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1668 struct ath_softc *sc = hw->priv;
1670 mutex_lock(&sc->mutex);
1672 ath9k_ps_wakeup(sc);
1673 ath9k_hw_reset_tsf(sc->sc_ah);
1674 ath9k_ps_restore(sc);
1676 mutex_unlock(&sc->mutex);
1679 static int ath9k_ampdu_action(struct ieee80211_hw *hw,
1680 struct ieee80211_vif *vif,
1681 enum ieee80211_ampdu_mlme_action action,
1682 struct ieee80211_sta *sta,
1683 u16 tid, u16 *ssn, u8 buf_size)
1685 struct ath_softc *sc = hw->priv;
1689 mutex_lock(&sc->mutex);
1692 case IEEE80211_AMPDU_RX_START:
1694 case IEEE80211_AMPDU_RX_STOP:
1696 case IEEE80211_AMPDU_TX_START:
1697 ath9k_ps_wakeup(sc);
1698 ret = ath_tx_aggr_start(sc, sta, tid, ssn);
1700 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1701 ath9k_ps_restore(sc);
1703 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1704 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1706 case IEEE80211_AMPDU_TX_STOP_CONT:
1707 ath9k_ps_wakeup(sc);
1708 ath_tx_aggr_stop(sc, sta, tid);
1710 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1711 ath9k_ps_restore(sc);
1713 case IEEE80211_AMPDU_TX_OPERATIONAL:
1714 ath9k_ps_wakeup(sc);
1715 ath_tx_aggr_resume(sc, sta, tid);
1716 ath9k_ps_restore(sc);
1719 ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n");
1722 mutex_unlock(&sc->mutex);
1727 static int ath9k_get_survey(struct ieee80211_hw *hw, int idx,
1728 struct survey_info *survey)
1730 struct ath_softc *sc = hw->priv;
1731 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1732 struct ieee80211_supported_band *sband;
1733 struct ieee80211_channel *chan;
1734 unsigned long flags;
1737 spin_lock_irqsave(&common->cc_lock, flags);
1739 ath_update_survey_stats(sc);
1741 sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
1742 if (sband && idx >= sband->n_channels) {
1743 idx -= sband->n_channels;
1748 sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
1750 if (!sband || idx >= sband->n_channels) {
1751 spin_unlock_irqrestore(&common->cc_lock, flags);
1755 chan = &sband->channels[idx];
1756 pos = chan->hw_value;
1757 memcpy(survey, &sc->survey[pos], sizeof(*survey));
1758 survey->channel = chan;
1759 spin_unlock_irqrestore(&common->cc_lock, flags);
1764 static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
1766 struct ath_softc *sc = hw->priv;
1767 struct ath_hw *ah = sc->sc_ah;
1769 mutex_lock(&sc->mutex);
1770 ah->coverage_class = coverage_class;
1772 ath9k_ps_wakeup(sc);
1773 ath9k_hw_init_global_settings(ah);
1774 ath9k_ps_restore(sc);
1776 mutex_unlock(&sc->mutex);
1779 static void ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1781 struct ath_softc *sc = hw->priv;
1782 struct ath_hw *ah = sc->sc_ah;
1783 struct ath_common *common = ath9k_hw_common(ah);
1784 int timeout = 200; /* ms */
1788 mutex_lock(&sc->mutex);
1789 cancel_delayed_work_sync(&sc->tx_complete_work);
1791 if (ah->ah_flags & AH_UNPLUGGED) {
1792 ath_dbg(common, ANY, "Device has been unplugged!\n");
1793 mutex_unlock(&sc->mutex);
1797 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
1798 ath_dbg(common, ANY, "Device not present\n");
1799 mutex_unlock(&sc->mutex);
1803 for (j = 0; j < timeout; j++) {
1807 usleep_range(1000, 2000);
1809 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1810 if (!ATH_TXQ_SETUP(sc, i))
1813 npend = ath9k_has_pending_frames(sc, &sc->tx.txq[i]);
1824 ath9k_ps_wakeup(sc);
1825 spin_lock_bh(&sc->sc_pcu_lock);
1826 drain_txq = ath_drain_all_txq(sc);
1827 spin_unlock_bh(&sc->sc_pcu_lock);
1832 ath9k_ps_restore(sc);
1833 ieee80211_wake_queues(hw);
1836 ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
1837 mutex_unlock(&sc->mutex);
1840 static bool ath9k_tx_frames_pending(struct ieee80211_hw *hw)
1842 struct ath_softc *sc = hw->priv;
1845 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1846 if (!ATH_TXQ_SETUP(sc, i))
1849 if (ath9k_has_pending_frames(sc, &sc->tx.txq[i]))
1855 static int ath9k_tx_last_beacon(struct ieee80211_hw *hw)
1857 struct ath_softc *sc = hw->priv;
1858 struct ath_hw *ah = sc->sc_ah;
1859 struct ieee80211_vif *vif;
1860 struct ath_vif *avp;
1862 struct ath_tx_status ts;
1863 bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
1866 vif = sc->beacon.bslot[0];
1870 if (!vif->bss_conf.enable_beacon)
1873 avp = (void *)vif->drv_priv;
1875 if (!sc->beacon.tx_processed && !edma) {
1876 tasklet_disable(&sc->bcon_tasklet);
1879 if (!bf || !bf->bf_mpdu)
1882 status = ath9k_hw_txprocdesc(ah, bf->bf_desc, &ts);
1883 if (status == -EINPROGRESS)
1886 sc->beacon.tx_processed = true;
1887 sc->beacon.tx_last = !(ts.ts_status & ATH9K_TXERR_MASK);
1890 tasklet_enable(&sc->bcon_tasklet);
1893 return sc->beacon.tx_last;
1896 static int ath9k_get_stats(struct ieee80211_hw *hw,
1897 struct ieee80211_low_level_stats *stats)
1899 struct ath_softc *sc = hw->priv;
1900 struct ath_hw *ah = sc->sc_ah;
1901 struct ath9k_mib_stats *mib_stats = &ah->ah_mibStats;
1903 stats->dot11ACKFailureCount = mib_stats->ackrcv_bad;
1904 stats->dot11RTSFailureCount = mib_stats->rts_bad;
1905 stats->dot11FCSErrorCount = mib_stats->fcs_bad;
1906 stats->dot11RTSSuccessCount = mib_stats->rts_good;
1910 static u32 fill_chainmask(u32 cap, u32 new)
1915 for (i = 0; cap && new; i++, cap >>= 1) {
1916 if (!(cap & BIT(0)))
1928 static bool validate_antenna_mask(struct ath_hw *ah, u32 val)
1930 if (AR_SREV_9300_20_OR_LATER(ah))
1933 switch (val & 0x7) {
1939 return (ah->caps.rx_chainmask == 1);
1945 static int ath9k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
1947 struct ath_softc *sc = hw->priv;
1948 struct ath_hw *ah = sc->sc_ah;
1950 if (ah->caps.rx_chainmask != 1)
1953 if (!validate_antenna_mask(ah, rx_ant) || !tx_ant)
1956 sc->ant_rx = rx_ant;
1957 sc->ant_tx = tx_ant;
1959 if (ah->caps.rx_chainmask == 1)
1962 /* AR9100 runs into calibration issues if not all rx chains are enabled */
1963 if (AR_SREV_9100(ah))
1964 ah->rxchainmask = 0x7;
1966 ah->rxchainmask = fill_chainmask(ah->caps.rx_chainmask, rx_ant);
1968 ah->txchainmask = fill_chainmask(ah->caps.tx_chainmask, tx_ant);
1969 ath9k_reload_chainmask_settings(sc);
1974 static int ath9k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
1976 struct ath_softc *sc = hw->priv;
1978 *tx_ant = sc->ant_tx;
1979 *rx_ant = sc->ant_rx;
1983 #ifdef CONFIG_PM_SLEEP
1985 static void ath9k_wow_map_triggers(struct ath_softc *sc,
1986 struct cfg80211_wowlan *wowlan,
1989 if (wowlan->disconnect)
1990 *wow_triggers |= AH_WOW_LINK_CHANGE |
1992 if (wowlan->magic_pkt)
1993 *wow_triggers |= AH_WOW_MAGIC_PATTERN_EN;
1995 if (wowlan->n_patterns)
1996 *wow_triggers |= AH_WOW_USER_PATTERN_EN;
1998 sc->wow_enabled = *wow_triggers;
2002 static void ath9k_wow_add_disassoc_deauth_pattern(struct ath_softc *sc)
2004 struct ath_hw *ah = sc->sc_ah;
2005 struct ath_common *common = ath9k_hw_common(ah);
2006 int pattern_count = 0;
2008 u8 dis_deauth_pattern[MAX_PATTERN_SIZE];
2009 u8 dis_deauth_mask[MAX_PATTERN_SIZE];
2011 memset(dis_deauth_pattern, 0, MAX_PATTERN_SIZE);
2012 memset(dis_deauth_mask, 0, MAX_PATTERN_SIZE);
2015 * Create Dissassociate / Deauthenticate packet filter
2017 * 2 bytes 2 byte 6 bytes 6 bytes 6 bytes
2018 * +--------------+----------+---------+--------+--------+----
2019 * + Frame Control+ Duration + DA + SA + BSSID +
2020 * +--------------+----------+---------+--------+--------+----
2022 * The above is the management frame format for disassociate/
2023 * deauthenticate pattern, from this we need to match the first byte
2024 * of 'Frame Control' and DA, SA, and BSSID fields
2025 * (skipping 2nd byte of FC and Duration feild.
2027 * Disassociate pattern
2028 * --------------------
2029 * Frame control = 00 00 1010
2030 * DA, SA, BSSID = x:x:x:x:x:x
2031 * Pattern will be A0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2032 * | x:x:x:x:x:x -- 22 bytes
2034 * Deauthenticate pattern
2035 * ----------------------
2036 * Frame control = 00 00 1100
2037 * DA, SA, BSSID = x:x:x:x:x:x
2038 * Pattern will be C0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2039 * | x:x:x:x:x:x -- 22 bytes
2042 /* Create Disassociate Pattern first */
2046 /* Fill out the mask with all FF's */
2048 for (i = 0; i < MAX_PATTERN_MASK_SIZE; i++)
2049 dis_deauth_mask[i] = 0xff;
2051 /* copy the first byte of frame control field */
2052 dis_deauth_pattern[byte_cnt] = 0xa0;
2055 /* skip 2nd byte of frame control and Duration field */
2059 * need not match the destination mac address, it can be a broadcast
2060 * mac address or an unicast to this station
2064 /* copy the source mac address */
2065 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2069 /* copy the bssid, its same as the source mac address */
2071 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2073 /* Create Disassociate pattern mask */
2075 dis_deauth_mask[0] = 0xfe;
2076 dis_deauth_mask[1] = 0x03;
2077 dis_deauth_mask[2] = 0xc0;
2079 ath_dbg(common, WOW, "Adding disassoc/deauth patterns for WoW\n");
2081 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2082 pattern_count, byte_cnt);
2086 * for de-authenticate pattern, only the first byte of the frame
2087 * control field gets changed from 0xA0 to 0xC0
2089 dis_deauth_pattern[0] = 0xC0;
2091 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2092 pattern_count, byte_cnt);
2096 static void ath9k_wow_add_pattern(struct ath_softc *sc,
2097 struct cfg80211_wowlan *wowlan)
2099 struct ath_hw *ah = sc->sc_ah;
2100 struct ath9k_wow_pattern *wow_pattern = NULL;
2101 struct cfg80211_pkt_pattern *patterns = wowlan->patterns;
2105 if (!wowlan->n_patterns)
2109 * Add the new user configured patterns
2111 for (i = 0; i < wowlan->n_patterns; i++) {
2113 wow_pattern = kzalloc(sizeof(*wow_pattern), GFP_KERNEL);
2119 * TODO: convert the generic user space pattern to
2120 * appropriate chip specific/802.11 pattern.
2123 mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
2124 memset(wow_pattern->pattern_bytes, 0, MAX_PATTERN_SIZE);
2125 memset(wow_pattern->mask_bytes, 0, MAX_PATTERN_SIZE);
2126 memcpy(wow_pattern->pattern_bytes, patterns[i].pattern,
2127 patterns[i].pattern_len);
2128 memcpy(wow_pattern->mask_bytes, patterns[i].mask, mask_len);
2129 wow_pattern->pattern_len = patterns[i].pattern_len;
2132 * just need to take care of deauth and disssoc pattern,
2133 * make sure we don't overwrite them.
2136 ath9k_hw_wow_apply_pattern(ah, wow_pattern->pattern_bytes,
2137 wow_pattern->mask_bytes,
2139 wow_pattern->pattern_len);
2146 static int ath9k_suspend(struct ieee80211_hw *hw,
2147 struct cfg80211_wowlan *wowlan)
2149 struct ath_softc *sc = hw->priv;
2150 struct ath_hw *ah = sc->sc_ah;
2151 struct ath_common *common = ath9k_hw_common(ah);
2152 u32 wow_triggers_enabled = 0;
2155 mutex_lock(&sc->mutex);
2157 ath_cancel_work(sc);
2159 del_timer_sync(&sc->rx_poll_timer);
2161 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
2162 ath_dbg(common, ANY, "Device not present\n");
2167 if (WARN_ON(!wowlan)) {
2168 ath_dbg(common, WOW, "None of the WoW triggers enabled\n");
2173 if (!device_can_wakeup(sc->dev)) {
2174 ath_dbg(common, WOW, "device_can_wakeup failed, WoW is not enabled\n");
2180 * none of the sta vifs are associated
2181 * and we are not currently handling multivif
2182 * cases, for instance we have to seperately
2183 * configure 'keep alive frame' for each
2187 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
2188 ath_dbg(common, WOW, "None of the STA vifs are associated\n");
2193 if (sc->nvifs > 1) {
2194 ath_dbg(common, WOW, "WoW for multivif is not yet supported\n");
2199 ath9k_wow_map_triggers(sc, wowlan, &wow_triggers_enabled);
2201 ath_dbg(common, WOW, "WoW triggers enabled 0x%x\n",
2202 wow_triggers_enabled);
2204 ath9k_ps_wakeup(sc);
2206 ath9k_stop_btcoex(sc);
2209 * Enable wake up on recieving disassoc/deauth
2212 ath9k_wow_add_disassoc_deauth_pattern(sc);
2214 if (wow_triggers_enabled & AH_WOW_USER_PATTERN_EN)
2215 ath9k_wow_add_pattern(sc, wowlan);
2217 spin_lock_bh(&sc->sc_pcu_lock);
2219 * To avoid false wake, we enable beacon miss interrupt only
2220 * when we go to sleep. We save the current interrupt mask
2221 * so we can restore it after the system wakes up
2223 sc->wow_intr_before_sleep = ah->imask;
2224 ah->imask &= ~ATH9K_INT_GLOBAL;
2225 ath9k_hw_disable_interrupts(ah);
2226 ah->imask = ATH9K_INT_BMISS | ATH9K_INT_GLOBAL;
2227 ath9k_hw_set_interrupts(ah);
2228 ath9k_hw_enable_interrupts(ah);
2230 spin_unlock_bh(&sc->sc_pcu_lock);
2233 * we can now sync irq and kill any running tasklets, since we already
2234 * disabled interrupts and not holding a spin lock
2236 synchronize_irq(sc->irq);
2237 tasklet_kill(&sc->intr_tq);
2239 ath9k_hw_wow_enable(ah, wow_triggers_enabled);
2241 ath9k_ps_restore(sc);
2242 ath_dbg(common, ANY, "WoW enabled in ath9k\n");
2243 atomic_inc(&sc->wow_sleep_proc_intr);
2246 mutex_unlock(&sc->mutex);
2250 static int ath9k_resume(struct ieee80211_hw *hw)
2252 struct ath_softc *sc = hw->priv;
2253 struct ath_hw *ah = sc->sc_ah;
2254 struct ath_common *common = ath9k_hw_common(ah);
2257 mutex_lock(&sc->mutex);
2259 ath9k_ps_wakeup(sc);
2261 spin_lock_bh(&sc->sc_pcu_lock);
2263 ath9k_hw_disable_interrupts(ah);
2264 ah->imask = sc->wow_intr_before_sleep;
2265 ath9k_hw_set_interrupts(ah);
2266 ath9k_hw_enable_interrupts(ah);
2268 spin_unlock_bh(&sc->sc_pcu_lock);
2270 wow_status = ath9k_hw_wow_wakeup(ah);
2272 if (atomic_read(&sc->wow_got_bmiss_intr) == 0) {
2274 * some devices may not pick beacon miss
2275 * as the reason they woke up so we add
2276 * that here for that shortcoming.
2278 wow_status |= AH_WOW_BEACON_MISS;
2279 atomic_dec(&sc->wow_got_bmiss_intr);
2280 ath_dbg(common, ANY, "Beacon miss interrupt picked up during WoW sleep\n");
2283 atomic_dec(&sc->wow_sleep_proc_intr);
2286 ath_dbg(common, ANY, "Waking up due to WoW triggers %s with WoW status = %x\n",
2287 ath9k_hw_wow_event_to_string(wow_status), wow_status);
2290 ath_restart_work(sc);
2291 ath9k_start_btcoex(sc);
2293 ath9k_ps_restore(sc);
2294 mutex_unlock(&sc->mutex);
2299 static void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2301 struct ath_softc *sc = hw->priv;
2303 mutex_lock(&sc->mutex);
2304 device_init_wakeup(sc->dev, 1);
2305 device_set_wakeup_enable(sc->dev, enabled);
2306 mutex_unlock(&sc->mutex);
2310 static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
2312 struct ath_softc *sc = hw->priv;
2313 set_bit(SC_OP_SCANNING, &sc->sc_flags);
2316 static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
2318 struct ath_softc *sc = hw->priv;
2319 clear_bit(SC_OP_SCANNING, &sc->sc_flags);
2322 static void ath9k_channel_switch_beacon(struct ieee80211_hw *hw,
2323 struct ieee80211_vif *vif,
2324 struct cfg80211_chan_def *chandef)
2326 struct ath_softc *sc = hw->priv;
2328 /* mac80211 does not support CSA in multi-if cases (yet) */
2329 if (WARN_ON(sc->csa_vif))
2335 struct ieee80211_ops ath9k_ops = {
2337 .start = ath9k_start,
2339 .add_interface = ath9k_add_interface,
2340 .change_interface = ath9k_change_interface,
2341 .remove_interface = ath9k_remove_interface,
2342 .config = ath9k_config,
2343 .configure_filter = ath9k_configure_filter,
2344 .sta_add = ath9k_sta_add,
2345 .sta_remove = ath9k_sta_remove,
2346 .sta_notify = ath9k_sta_notify,
2347 .conf_tx = ath9k_conf_tx,
2348 .bss_info_changed = ath9k_bss_info_changed,
2349 .set_key = ath9k_set_key,
2350 .get_tsf = ath9k_get_tsf,
2351 .set_tsf = ath9k_set_tsf,
2352 .reset_tsf = ath9k_reset_tsf,
2353 .ampdu_action = ath9k_ampdu_action,
2354 .get_survey = ath9k_get_survey,
2355 .rfkill_poll = ath9k_rfkill_poll_state,
2356 .set_coverage_class = ath9k_set_coverage_class,
2357 .flush = ath9k_flush,
2358 .tx_frames_pending = ath9k_tx_frames_pending,
2359 .tx_last_beacon = ath9k_tx_last_beacon,
2360 .release_buffered_frames = ath9k_release_buffered_frames,
2361 .get_stats = ath9k_get_stats,
2362 .set_antenna = ath9k_set_antenna,
2363 .get_antenna = ath9k_get_antenna,
2365 #ifdef CONFIG_PM_SLEEP
2366 .suspend = ath9k_suspend,
2367 .resume = ath9k_resume,
2368 .set_wakeup = ath9k_set_wakeup,
2371 #ifdef CONFIG_ATH9K_DEBUGFS
2372 .get_et_sset_count = ath9k_get_et_sset_count,
2373 .get_et_stats = ath9k_get_et_stats,
2374 .get_et_strings = ath9k_get_et_strings,
2377 #if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_DEBUGFS)
2378 .sta_add_debugfs = ath9k_sta_add_debugfs,
2380 .sw_scan_start = ath9k_sw_scan_start,
2381 .sw_scan_complete = ath9k_sw_scan_complete,
2382 .channel_switch_beacon = ath9k_channel_switch_beacon,