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_9485(sc->sc_ah) ||
177 AR_SREV_9550(sc->sc_ah))
178 ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work,
179 msecs_to_jiffies(ATH_PLL_WORK_INTERVAL));
181 ath_start_rx_poll(sc, 3);
185 static bool ath_prepare_reset(struct ath_softc *sc)
187 struct ath_hw *ah = sc->sc_ah;
190 ieee80211_stop_queues(sc->hw);
192 sc->hw_busy_count = 0;
194 del_timer_sync(&sc->rx_poll_timer);
196 ath9k_hw_disable_interrupts(ah);
198 if (!ath_drain_all_txq(sc))
201 if (!ath_stoprecv(sc))
207 static bool ath_complete_reset(struct ath_softc *sc, bool start)
209 struct ath_hw *ah = sc->sc_ah;
210 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);
241 ieee80211_wake_queues(sc->hw);
246 static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan)
248 struct ath_hw *ah = sc->sc_ah;
249 struct ath_common *common = ath9k_hw_common(ah);
250 struct ath9k_hw_cal_data *caldata = NULL;
254 __ath_cancel_work(sc);
256 tasklet_disable(&sc->intr_tq);
257 spin_lock_bh(&sc->sc_pcu_lock);
259 if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) {
261 caldata = &sc->caldata;
269 if (!ath_prepare_reset(sc))
272 ath_dbg(common, CONFIG, "Reset to %u MHz, HT40: %d fastcc: %d\n",
273 hchan->channel, IS_CHAN_HT40(hchan), fastcc);
275 r = ath9k_hw_reset(ah, hchan, caldata, fastcc);
278 "Unable to reset channel, reset status %d\n", r);
280 ath9k_hw_enable_interrupts(ah);
281 ath9k_queue_reset(sc, RESET_TYPE_BB_HANG);
286 if (ath9k_hw_mci_is_enabled(sc->sc_ah) &&
287 (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
288 ath9k_mci_set_txpower(sc, true, false);
290 if (!ath_complete_reset(sc, true))
294 spin_unlock_bh(&sc->sc_pcu_lock);
295 tasklet_enable(&sc->intr_tq);
302 * Set/change channels. If the channel is really being changed, it's done
303 * by reseting the chip. To accomplish this we must first cleanup any pending
304 * DMA, then restart stuff.
306 static int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
307 struct ath9k_channel *hchan)
311 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
314 r = ath_reset_internal(sc, hchan);
319 static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
320 struct ieee80211_vif *vif)
323 an = (struct ath_node *)sta->drv_priv;
329 ath_tx_node_init(sc, an);
331 if (sta->ht_cap.ht_supported) {
332 an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
333 sta->ht_cap.ampdu_factor);
334 an->mpdudensity = ath9k_parse_mpdudensity(sta->ht_cap.ampdu_density);
338 static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
340 struct ath_node *an = (struct ath_node *)sta->drv_priv;
341 ath_tx_node_cleanup(sc, an);
344 void ath9k_tasklet(unsigned long data)
346 struct ath_softc *sc = (struct ath_softc *)data;
347 struct ath_hw *ah = sc->sc_ah;
348 struct ath_common *common = ath9k_hw_common(ah);
349 enum ath_reset_type type;
351 u32 status = sc->intrstatus;
355 spin_lock(&sc->sc_pcu_lock);
357 if ((status & ATH9K_INT_FATAL) ||
358 (status & ATH9K_INT_BB_WATCHDOG)) {
360 if (status & ATH9K_INT_FATAL)
361 type = RESET_TYPE_FATAL_INT;
363 type = RESET_TYPE_BB_WATCHDOG;
365 ath9k_queue_reset(sc, type);
369 spin_lock_irqsave(&sc->sc_pm_lock, flags);
370 if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) {
372 * TSF sync does not look correct; remain awake to sync with
375 ath_dbg(common, PS, "TSFOOR - Sync with next Beacon\n");
376 sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC;
378 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
380 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
381 rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL |
384 rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
386 if (status & rxmask) {
387 /* Check for high priority Rx first */
388 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
389 (status & ATH9K_INT_RXHP))
390 ath_rx_tasklet(sc, 0, true);
392 ath_rx_tasklet(sc, 0, false);
395 if (status & ATH9K_INT_TX) {
396 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
397 ath_tx_edma_tasklet(sc);
402 ath9k_btcoex_handle_interrupt(sc, status);
405 /* re-enable hardware interrupt */
406 ath9k_hw_enable_interrupts(ah);
408 spin_unlock(&sc->sc_pcu_lock);
409 ath9k_ps_restore(sc);
412 irqreturn_t ath_isr(int irq, void *dev)
414 #define SCHED_INTR ( \
416 ATH9K_INT_BB_WATCHDOG | \
426 ATH9K_INT_GENTIMER | \
429 struct ath_softc *sc = dev;
430 struct ath_hw *ah = sc->sc_ah;
431 struct ath_common *common = ath9k_hw_common(ah);
432 enum ath9k_int status;
436 * The hardware is not ready/present, don't
437 * touch anything. Note this can happen early
438 * on if the IRQ is shared.
440 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
443 /* shared irq, not for us */
445 if (!ath9k_hw_intrpend(ah))
448 if (test_bit(SC_OP_HW_RESET, &sc->sc_flags)) {
449 ath9k_hw_kill_interrupts(ah);
454 * Figure out the reason(s) for the interrupt. Note
455 * that the hal returns a pseudo-ISR that may include
456 * bits we haven't explicitly enabled so we mask the
457 * value to insure we only process bits we requested.
459 ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */
460 status &= ah->imask; /* discard unasked-for bits */
463 * If there are no status bits set, then this interrupt was not
464 * for me (should have been caught above).
469 /* Cache the status */
470 sc->intrstatus = status;
472 if (status & SCHED_INTR)
476 * If a FATAL or RXORN interrupt is received, we have to reset the
479 if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) &&
480 !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)))
483 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
484 (status & ATH9K_INT_BB_WATCHDOG)) {
486 spin_lock(&common->cc_lock);
487 ath_hw_cycle_counters_update(common);
488 ar9003_hw_bb_watchdog_dbg_info(ah);
489 spin_unlock(&common->cc_lock);
493 #ifdef CONFIG_PM_SLEEP
494 if (status & ATH9K_INT_BMISS) {
495 if (atomic_read(&sc->wow_sleep_proc_intr) == 0) {
496 ath_dbg(common, ANY, "during WoW we got a BMISS\n");
497 atomic_inc(&sc->wow_got_bmiss_intr);
498 atomic_dec(&sc->wow_sleep_proc_intr);
502 if (status & ATH9K_INT_SWBA)
503 tasklet_schedule(&sc->bcon_tasklet);
505 if (status & ATH9K_INT_TXURN)
506 ath9k_hw_updatetxtriglevel(ah, true);
508 if (status & ATH9K_INT_RXEOL) {
509 ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
510 ath9k_hw_set_interrupts(ah);
513 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
514 if (status & ATH9K_INT_TIM_TIMER) {
515 if (ATH_DBG_WARN_ON_ONCE(sc->ps_idle))
517 /* Clear RxAbort bit so that we can
519 ath9k_setpower(sc, ATH9K_PM_AWAKE);
520 spin_lock(&sc->sc_pm_lock);
521 ath9k_hw_setrxabort(sc->sc_ah, 0);
522 sc->ps_flags |= PS_WAIT_FOR_BEACON;
523 spin_unlock(&sc->sc_pm_lock);
528 ath_debug_stat_interrupt(sc, status);
531 /* turn off every interrupt */
532 ath9k_hw_disable_interrupts(ah);
533 tasklet_schedule(&sc->intr_tq);
541 static int ath_reset(struct ath_softc *sc)
547 r = ath_reset_internal(sc, NULL);
549 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
550 if (!ATH_TXQ_SETUP(sc, i))
553 spin_lock_bh(&sc->tx.txq[i].axq_lock);
554 ath_txq_schedule(sc, &sc->tx.txq[i]);
555 spin_unlock_bh(&sc->tx.txq[i].axq_lock);
558 ath9k_ps_restore(sc);
563 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type)
565 #ifdef CONFIG_ATH9K_DEBUGFS
566 RESET_STAT_INC(sc, type);
568 set_bit(SC_OP_HW_RESET, &sc->sc_flags);
569 ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
572 void ath_reset_work(struct work_struct *work)
574 struct ath_softc *sc = container_of(work, struct ath_softc, hw_reset_work);
579 /**********************/
580 /* mac80211 callbacks */
581 /**********************/
583 static int ath9k_start(struct ieee80211_hw *hw)
585 struct ath_softc *sc = hw->priv;
586 struct ath_hw *ah = sc->sc_ah;
587 struct ath_common *common = ath9k_hw_common(ah);
588 struct ieee80211_channel *curchan = hw->conf.chandef.chan;
589 struct ath9k_channel *init_channel;
592 ath_dbg(common, CONFIG,
593 "Starting driver with initial channel: %d MHz\n",
594 curchan->center_freq);
597 mutex_lock(&sc->mutex);
599 init_channel = ath9k_cmn_get_curchannel(hw, ah);
601 /* Reset SERDES registers */
602 ath9k_hw_configpcipowersave(ah, false);
605 * The basic interface to setting the hardware in a good
606 * state is ``reset''. On return the hardware is known to
607 * be powered up and with interrupts disabled. This must
608 * be followed by initialization of the appropriate bits
609 * and then setup of the interrupt mask.
611 spin_lock_bh(&sc->sc_pcu_lock);
613 atomic_set(&ah->intr_ref_cnt, -1);
615 r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
618 "Unable to reset hardware; reset status %d (freq %u MHz)\n",
619 r, curchan->center_freq);
620 ah->reset_power_on = false;
623 /* Setup our intr mask. */
624 ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL |
625 ATH9K_INT_RXORN | ATH9K_INT_FATAL |
628 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
629 ah->imask |= ATH9K_INT_RXHP |
631 ATH9K_INT_BB_WATCHDOG;
633 ah->imask |= ATH9K_INT_RX;
635 ah->imask |= ATH9K_INT_GTT;
637 if (ah->caps.hw_caps & ATH9K_HW_CAP_HT)
638 ah->imask |= ATH9K_INT_CST;
642 clear_bit(SC_OP_INVALID, &sc->sc_flags);
643 sc->sc_ah->is_monitoring = false;
645 if (!ath_complete_reset(sc, false))
646 ah->reset_power_on = false;
648 if (ah->led_pin >= 0) {
649 ath9k_hw_cfg_output(ah, ah->led_pin,
650 AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
651 ath9k_hw_set_gpio(ah, ah->led_pin, 0);
655 * Reset key cache to sane defaults (all entries cleared) instead of
656 * semi-random values after suspend/resume.
658 ath9k_cmn_init_crypto(sc->sc_ah);
660 spin_unlock_bh(&sc->sc_pcu_lock);
662 mutex_unlock(&sc->mutex);
664 ath9k_ps_restore(sc);
669 static void ath9k_tx(struct ieee80211_hw *hw,
670 struct ieee80211_tx_control *control,
673 struct ath_softc *sc = hw->priv;
674 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
675 struct ath_tx_control txctl;
676 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
679 if (sc->ps_enabled) {
681 * mac80211 does not set PM field for normal data frames, so we
682 * need to update that based on the current PS mode.
684 if (ieee80211_is_data(hdr->frame_control) &&
685 !ieee80211_is_nullfunc(hdr->frame_control) &&
686 !ieee80211_has_pm(hdr->frame_control)) {
688 "Add PM=1 for a TX frame while in PS mode\n");
689 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
693 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP)) {
695 * We are using PS-Poll and mac80211 can request TX while in
696 * power save mode. Need to wake up hardware for the TX to be
697 * completed and if needed, also for RX of buffered frames.
700 spin_lock_irqsave(&sc->sc_pm_lock, flags);
701 if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
702 ath9k_hw_setrxabort(sc->sc_ah, 0);
703 if (ieee80211_is_pspoll(hdr->frame_control)) {
705 "Sending PS-Poll to pick a buffered frame\n");
706 sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA;
708 ath_dbg(common, PS, "Wake up to complete TX\n");
709 sc->ps_flags |= PS_WAIT_FOR_TX_ACK;
712 * The actual restore operation will happen only after
713 * the ps_flags bit is cleared. We are just dropping
714 * the ps_usecount here.
716 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
717 ath9k_ps_restore(sc);
721 * Cannot tx while the hardware is in full sleep, it first needs a full
722 * chip reset to recover from that
724 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_FULL_SLEEP)) {
725 ath_err(common, "TX while HW is in FULL_SLEEP mode\n");
729 memset(&txctl, 0, sizeof(struct ath_tx_control));
730 txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)];
731 txctl.sta = control->sta;
733 ath_dbg(common, XMIT, "transmitting packet, skb: %p\n", skb);
735 if (ath_tx_start(hw, skb, &txctl) != 0) {
736 ath_dbg(common, XMIT, "TX failed\n");
737 TX_STAT_INC(txctl.txq->axq_qnum, txfailed);
743 ieee80211_free_txskb(hw, skb);
746 static void ath9k_stop(struct ieee80211_hw *hw)
748 struct ath_softc *sc = hw->priv;
749 struct ath_hw *ah = sc->sc_ah;
750 struct ath_common *common = ath9k_hw_common(ah);
753 mutex_lock(&sc->mutex);
756 del_timer_sync(&sc->rx_poll_timer);
758 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
759 ath_dbg(common, ANY, "Device not present\n");
760 mutex_unlock(&sc->mutex);
764 /* Ensure HW is awake when we try to shut it down. */
767 spin_lock_bh(&sc->sc_pcu_lock);
769 /* prevent tasklets to enable interrupts once we disable them */
770 ah->imask &= ~ATH9K_INT_GLOBAL;
772 /* make sure h/w will not generate any interrupt
773 * before setting the invalid flag. */
774 ath9k_hw_disable_interrupts(ah);
776 spin_unlock_bh(&sc->sc_pcu_lock);
778 /* we can now sync irq and kill any running tasklets, since we already
779 * disabled interrupts and not holding a spin lock */
780 synchronize_irq(sc->irq);
781 tasklet_kill(&sc->intr_tq);
782 tasklet_kill(&sc->bcon_tasklet);
784 prev_idle = sc->ps_idle;
787 spin_lock_bh(&sc->sc_pcu_lock);
789 if (ah->led_pin >= 0) {
790 ath9k_hw_set_gpio(ah, ah->led_pin, 1);
791 ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
794 ath_prepare_reset(sc);
797 dev_kfree_skb_any(sc->rx.frag);
802 ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
804 ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
805 ath9k_hw_phy_disable(ah);
807 ath9k_hw_configpcipowersave(ah, true);
809 spin_unlock_bh(&sc->sc_pcu_lock);
811 ath9k_ps_restore(sc);
813 set_bit(SC_OP_INVALID, &sc->sc_flags);
814 sc->ps_idle = prev_idle;
816 mutex_unlock(&sc->mutex);
818 ath_dbg(common, CONFIG, "Driver halt\n");
821 bool ath9k_uses_beacons(int type)
824 case NL80211_IFTYPE_AP:
825 case NL80211_IFTYPE_ADHOC:
826 case NL80211_IFTYPE_MESH_POINT:
833 static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
835 struct ath9k_vif_iter_data *iter_data = data;
838 if (iter_data->has_hw_macaddr) {
839 for (i = 0; i < ETH_ALEN; i++)
840 iter_data->mask[i] &=
841 ~(iter_data->hw_macaddr[i] ^ mac[i]);
843 memcpy(iter_data->hw_macaddr, mac, ETH_ALEN);
844 iter_data->has_hw_macaddr = true;
848 case NL80211_IFTYPE_AP:
851 case NL80211_IFTYPE_STATION:
852 iter_data->nstations++;
854 case NL80211_IFTYPE_ADHOC:
855 iter_data->nadhocs++;
857 case NL80211_IFTYPE_MESH_POINT:
858 iter_data->nmeshes++;
860 case NL80211_IFTYPE_WDS:
868 static void ath9k_sta_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
870 struct ath_softc *sc = data;
871 struct ath_vif *avp = (void *)vif->drv_priv;
873 if (vif->type != NL80211_IFTYPE_STATION)
876 if (avp->primary_sta_vif)
877 ath9k_set_assoc_state(sc, vif);
880 /* Called with sc->mutex held. */
881 void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
882 struct ieee80211_vif *vif,
883 struct ath9k_vif_iter_data *iter_data)
885 struct ath_softc *sc = hw->priv;
886 struct ath_hw *ah = sc->sc_ah;
887 struct ath_common *common = ath9k_hw_common(ah);
890 * Use the hardware MAC address as reference, the hardware uses it
891 * together with the BSSID mask when matching addresses.
893 memset(iter_data, 0, sizeof(*iter_data));
894 memset(&iter_data->mask, 0xff, ETH_ALEN);
897 ath9k_vif_iter(iter_data, vif->addr, vif);
899 /* Get list of all active MAC addresses */
900 ieee80211_iterate_active_interfaces_atomic(
901 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
902 ath9k_vif_iter, iter_data);
904 memcpy(common->macaddr, iter_data->hw_macaddr, ETH_ALEN);
907 /* Called with sc->mutex held. */
908 static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
909 struct ieee80211_vif *vif)
911 struct ath_softc *sc = hw->priv;
912 struct ath_hw *ah = sc->sc_ah;
913 struct ath_common *common = ath9k_hw_common(ah);
914 struct ath9k_vif_iter_data iter_data;
915 enum nl80211_iftype old_opmode = ah->opmode;
917 ath9k_calculate_iter_data(hw, vif, &iter_data);
919 memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
920 ath_hw_setbssidmask(common);
922 if (iter_data.naps > 0) {
923 ath9k_hw_set_tsfadjust(ah, true);
924 ah->opmode = NL80211_IFTYPE_AP;
926 ath9k_hw_set_tsfadjust(ah, false);
928 if (iter_data.nmeshes)
929 ah->opmode = NL80211_IFTYPE_MESH_POINT;
930 else if (iter_data.nwds)
931 ah->opmode = NL80211_IFTYPE_AP;
932 else if (iter_data.nadhocs)
933 ah->opmode = NL80211_IFTYPE_ADHOC;
935 ah->opmode = NL80211_IFTYPE_STATION;
938 ath9k_hw_setopmode(ah);
940 if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0)
941 ah->imask |= ATH9K_INT_TSFOOR;
943 ah->imask &= ~ATH9K_INT_TSFOOR;
945 ath9k_hw_set_interrupts(ah);
948 * If we are changing the opmode to STATION,
949 * a beacon sync needs to be done.
951 if (ah->opmode == NL80211_IFTYPE_STATION &&
952 old_opmode == NL80211_IFTYPE_AP &&
953 test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
954 ieee80211_iterate_active_interfaces_atomic(
955 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
956 ath9k_sta_vif_iter, sc);
960 static int ath9k_add_interface(struct ieee80211_hw *hw,
961 struct ieee80211_vif *vif)
963 struct ath_softc *sc = hw->priv;
964 struct ath_hw *ah = sc->sc_ah;
965 struct ath_common *common = ath9k_hw_common(ah);
966 struct ath_vif *avp = (void *)vif->drv_priv;
967 struct ath_node *an = &avp->mcast_node;
969 mutex_lock(&sc->mutex);
971 ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type);
975 ath9k_calculate_summary_state(hw, vif);
976 ath9k_ps_restore(sc);
978 if (ath9k_uses_beacons(vif->type))
979 ath9k_beacon_assign_slot(sc, vif);
984 an->no_ps_filter = true;
985 ath_tx_node_init(sc, an);
987 mutex_unlock(&sc->mutex);
991 static int ath9k_change_interface(struct ieee80211_hw *hw,
992 struct ieee80211_vif *vif,
993 enum nl80211_iftype new_type,
996 struct ath_softc *sc = hw->priv;
997 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
999 ath_dbg(common, CONFIG, "Change Interface\n");
1000 mutex_lock(&sc->mutex);
1002 if (ath9k_uses_beacons(vif->type))
1003 ath9k_beacon_remove_slot(sc, vif);
1005 vif->type = new_type;
1008 ath9k_ps_wakeup(sc);
1009 ath9k_calculate_summary_state(hw, vif);
1010 ath9k_ps_restore(sc);
1012 if (ath9k_uses_beacons(vif->type))
1013 ath9k_beacon_assign_slot(sc, vif);
1015 mutex_unlock(&sc->mutex);
1019 static void ath9k_remove_interface(struct ieee80211_hw *hw,
1020 struct ieee80211_vif *vif)
1022 struct ath_softc *sc = hw->priv;
1023 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1024 struct ath_vif *avp = (void *)vif->drv_priv;
1026 ath_dbg(common, CONFIG, "Detach Interface\n");
1028 mutex_lock(&sc->mutex);
1032 if (ath9k_uses_beacons(vif->type))
1033 ath9k_beacon_remove_slot(sc, vif);
1035 ath9k_ps_wakeup(sc);
1036 ath9k_calculate_summary_state(hw, NULL);
1037 ath9k_ps_restore(sc);
1039 ath_tx_node_cleanup(sc, &avp->mcast_node);
1041 mutex_unlock(&sc->mutex);
1044 static void ath9k_enable_ps(struct ath_softc *sc)
1046 struct ath_hw *ah = sc->sc_ah;
1047 struct ath_common *common = ath9k_hw_common(ah);
1049 sc->ps_enabled = true;
1050 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1051 if ((ah->imask & ATH9K_INT_TIM_TIMER) == 0) {
1052 ah->imask |= ATH9K_INT_TIM_TIMER;
1053 ath9k_hw_set_interrupts(ah);
1055 ath9k_hw_setrxabort(ah, 1);
1057 ath_dbg(common, PS, "PowerSave enabled\n");
1060 static void ath9k_disable_ps(struct ath_softc *sc)
1062 struct ath_hw *ah = sc->sc_ah;
1063 struct ath_common *common = ath9k_hw_common(ah);
1065 sc->ps_enabled = false;
1066 ath9k_hw_setpower(ah, ATH9K_PM_AWAKE);
1067 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1068 ath9k_hw_setrxabort(ah, 0);
1069 sc->ps_flags &= ~(PS_WAIT_FOR_BEACON |
1071 PS_WAIT_FOR_PSPOLL_DATA |
1072 PS_WAIT_FOR_TX_ACK);
1073 if (ah->imask & ATH9K_INT_TIM_TIMER) {
1074 ah->imask &= ~ATH9K_INT_TIM_TIMER;
1075 ath9k_hw_set_interrupts(ah);
1078 ath_dbg(common, PS, "PowerSave disabled\n");
1081 void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw)
1083 struct ath_softc *sc = hw->priv;
1084 struct ath_hw *ah = sc->sc_ah;
1085 struct ath_common *common = ath9k_hw_common(ah);
1088 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1089 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1093 ath9k_ps_wakeup(sc);
1094 rxfilter = ath9k_hw_getrxfilter(ah);
1095 ath9k_hw_setrxfilter(ah, rxfilter |
1096 ATH9K_RX_FILTER_PHYRADAR |
1097 ATH9K_RX_FILTER_PHYERR);
1099 /* TODO: usually this should not be neccesary, but for some reason
1100 * (or in some mode?) the trigger must be called after the
1101 * configuration, otherwise the register will have its values reset
1102 * (on my ar9220 to value 0x01002310)
1104 ath9k_spectral_scan_config(hw, sc->spectral_mode);
1105 ath9k_hw_ops(ah)->spectral_scan_trigger(ah);
1106 ath9k_ps_restore(sc);
1109 int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
1110 enum spectral_mode spectral_mode)
1112 struct ath_softc *sc = hw->priv;
1113 struct ath_hw *ah = sc->sc_ah;
1114 struct ath_common *common = ath9k_hw_common(ah);
1116 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1117 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1121 switch (spectral_mode) {
1122 case SPECTRAL_DISABLED:
1123 sc->spec_config.enabled = 0;
1125 case SPECTRAL_BACKGROUND:
1126 /* send endless samples.
1127 * TODO: is this really useful for "background"?
1129 sc->spec_config.endless = 1;
1130 sc->spec_config.enabled = 1;
1132 case SPECTRAL_CHANSCAN:
1133 case SPECTRAL_MANUAL:
1134 sc->spec_config.endless = 0;
1135 sc->spec_config.enabled = 1;
1141 ath9k_ps_wakeup(sc);
1142 ath9k_hw_ops(ah)->spectral_scan_config(ah, &sc->spec_config);
1143 ath9k_ps_restore(sc);
1145 sc->spectral_mode = spectral_mode;
1150 static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
1152 struct ath_softc *sc = hw->priv;
1153 struct ath_hw *ah = sc->sc_ah;
1154 struct ath_common *common = ath9k_hw_common(ah);
1155 struct ieee80211_conf *conf = &hw->conf;
1156 bool reset_channel = false;
1158 ath9k_ps_wakeup(sc);
1159 mutex_lock(&sc->mutex);
1161 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1162 sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1164 ath_cancel_work(sc);
1165 ath9k_stop_btcoex(sc);
1167 ath9k_start_btcoex(sc);
1169 * The chip needs a reset to properly wake up from
1172 reset_channel = ah->chip_fullsleep;
1177 * We just prepare to enable PS. We have to wait until our AP has
1178 * ACK'd our null data frame to disable RX otherwise we'll ignore
1179 * those ACKs and end up retransmitting the same null data frames.
1180 * IEEE80211_CONF_CHANGE_PS is only passed by mac80211 for STA mode.
1182 if (changed & IEEE80211_CONF_CHANGE_PS) {
1183 unsigned long flags;
1184 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1185 if (conf->flags & IEEE80211_CONF_PS)
1186 ath9k_enable_ps(sc);
1188 ath9k_disable_ps(sc);
1189 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1192 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
1193 if (conf->flags & IEEE80211_CONF_MONITOR) {
1194 ath_dbg(common, CONFIG, "Monitor mode is enabled\n");
1195 sc->sc_ah->is_monitoring = true;
1197 ath_dbg(common, CONFIG, "Monitor mode is disabled\n");
1198 sc->sc_ah->is_monitoring = false;
1202 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {
1203 struct ieee80211_channel *curchan = hw->conf.chandef.chan;
1204 int pos = curchan->hw_value;
1206 unsigned long flags;
1209 old_pos = ah->curchan - &ah->channels[0];
1211 ath_dbg(common, CONFIG, "Set channel: %d MHz width: %d\n",
1212 curchan->center_freq, hw->conf.chandef.width);
1214 /* update survey stats for the old channel before switching */
1215 spin_lock_irqsave(&common->cc_lock, flags);
1216 ath_update_survey_stats(sc);
1217 spin_unlock_irqrestore(&common->cc_lock, flags);
1219 ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
1223 * If the operating channel changes, change the survey in-use flags
1225 * Reset the survey data for the new channel, unless we're switching
1226 * back to the operating channel from an off-channel operation.
1228 if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) &&
1229 sc->cur_survey != &sc->survey[pos]) {
1232 sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
1234 sc->cur_survey = &sc->survey[pos];
1236 memset(sc->cur_survey, 0, sizeof(struct survey_info));
1237 sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
1238 } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
1239 memset(&sc->survey[pos], 0, sizeof(struct survey_info));
1242 if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
1243 ath_err(common, "Unable to set channel\n");
1244 mutex_unlock(&sc->mutex);
1245 ath9k_ps_restore(sc);
1250 * The most recent snapshot of channel->noisefloor for the old
1251 * channel is only available after the hardware reset. Copy it to
1252 * the survey stats now.
1255 ath_update_survey_nf(sc, old_pos);
1258 * Enable radar pulse detection if on a DFS channel. Spectral
1259 * scanning and radar detection can not be used concurrently.
1261 if (hw->conf.radar_enabled) {
1264 /* set HW specific DFS configuration */
1265 ath9k_hw_set_radar_params(ah);
1266 rxfilter = ath9k_hw_getrxfilter(ah);
1267 rxfilter |= ATH9K_RX_FILTER_PHYRADAR |
1268 ATH9K_RX_FILTER_PHYERR;
1269 ath9k_hw_setrxfilter(ah, rxfilter);
1270 ath_dbg(common, DFS, "DFS enabled at freq %d\n",
1271 curchan->center_freq);
1273 /* perform spectral scan if requested. */
1274 if (test_bit(SC_OP_SCANNING, &sc->sc_flags) &&
1275 sc->spectral_mode == SPECTRAL_CHANSCAN)
1276 ath9k_spectral_scan_trigger(hw);
1280 if (changed & IEEE80211_CONF_CHANGE_POWER) {
1281 ath_dbg(common, CONFIG, "Set power: %d\n", conf->power_level);
1282 sc->config.txpowlimit = 2 * conf->power_level;
1283 ath9k_cmn_update_txpow(ah, sc->curtxpow,
1284 sc->config.txpowlimit, &sc->curtxpow);
1287 mutex_unlock(&sc->mutex);
1288 ath9k_ps_restore(sc);
1293 #define SUPPORTED_FILTERS \
1294 (FIF_PROMISC_IN_BSS | \
1299 FIF_BCN_PRBRESP_PROMISC | \
1303 /* FIXME: sc->sc_full_reset ? */
1304 static void ath9k_configure_filter(struct ieee80211_hw *hw,
1305 unsigned int changed_flags,
1306 unsigned int *total_flags,
1309 struct ath_softc *sc = hw->priv;
1312 changed_flags &= SUPPORTED_FILTERS;
1313 *total_flags &= SUPPORTED_FILTERS;
1315 sc->rx.rxfilter = *total_flags;
1316 ath9k_ps_wakeup(sc);
1317 rfilt = ath_calcrxfilter(sc);
1318 ath9k_hw_setrxfilter(sc->sc_ah, rfilt);
1319 ath9k_ps_restore(sc);
1321 ath_dbg(ath9k_hw_common(sc->sc_ah), CONFIG, "Set HW RX filter: 0x%x\n",
1325 static int ath9k_sta_add(struct ieee80211_hw *hw,
1326 struct ieee80211_vif *vif,
1327 struct ieee80211_sta *sta)
1329 struct ath_softc *sc = hw->priv;
1330 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1331 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1332 struct ieee80211_key_conf ps_key = { };
1335 ath_node_attach(sc, sta, vif);
1337 if (vif->type != NL80211_IFTYPE_AP &&
1338 vif->type != NL80211_IFTYPE_AP_VLAN)
1341 key = ath_key_config(common, vif, sta, &ps_key);
1348 static void ath9k_del_ps_key(struct ath_softc *sc,
1349 struct ieee80211_vif *vif,
1350 struct ieee80211_sta *sta)
1352 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1353 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1354 struct ieee80211_key_conf ps_key = { .hw_key_idx = an->ps_key };
1359 ath_key_delete(common, &ps_key);
1363 static int ath9k_sta_remove(struct ieee80211_hw *hw,
1364 struct ieee80211_vif *vif,
1365 struct ieee80211_sta *sta)
1367 struct ath_softc *sc = hw->priv;
1369 ath9k_del_ps_key(sc, vif, sta);
1370 ath_node_detach(sc, sta);
1375 static void ath9k_sta_notify(struct ieee80211_hw *hw,
1376 struct ieee80211_vif *vif,
1377 enum sta_notify_cmd cmd,
1378 struct ieee80211_sta *sta)
1380 struct ath_softc *sc = hw->priv;
1381 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1384 case STA_NOTIFY_SLEEP:
1385 an->sleeping = true;
1386 ath_tx_aggr_sleep(sta, sc, an);
1388 case STA_NOTIFY_AWAKE:
1389 an->sleeping = false;
1390 ath_tx_aggr_wakeup(sc, an);
1395 static int ath9k_conf_tx(struct ieee80211_hw *hw,
1396 struct ieee80211_vif *vif, u16 queue,
1397 const struct ieee80211_tx_queue_params *params)
1399 struct ath_softc *sc = hw->priv;
1400 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1401 struct ath_txq *txq;
1402 struct ath9k_tx_queue_info qi;
1405 if (queue >= IEEE80211_NUM_ACS)
1408 txq = sc->tx.txq_map[queue];
1410 ath9k_ps_wakeup(sc);
1411 mutex_lock(&sc->mutex);
1413 memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
1415 qi.tqi_aifs = params->aifs;
1416 qi.tqi_cwmin = params->cw_min;
1417 qi.tqi_cwmax = params->cw_max;
1418 qi.tqi_burstTime = params->txop * 32;
1420 ath_dbg(common, CONFIG,
1421 "Configure tx [queue/halq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
1422 queue, txq->axq_qnum, params->aifs, params->cw_min,
1423 params->cw_max, params->txop);
1425 ath_update_max_aggr_framelen(sc, queue, qi.tqi_burstTime);
1426 ret = ath_txq_update(sc, txq->axq_qnum, &qi);
1428 ath_err(common, "TXQ Update failed\n");
1430 mutex_unlock(&sc->mutex);
1431 ath9k_ps_restore(sc);
1436 static int ath9k_set_key(struct ieee80211_hw *hw,
1437 enum set_key_cmd cmd,
1438 struct ieee80211_vif *vif,
1439 struct ieee80211_sta *sta,
1440 struct ieee80211_key_conf *key)
1442 struct ath_softc *sc = hw->priv;
1443 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1446 if (ath9k_modparam_nohwcrypt)
1449 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1450 vif->type == NL80211_IFTYPE_MESH_POINT) &&
1451 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
1452 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
1453 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
1455 * For now, disable hw crypto for the RSN IBSS group keys. This
1456 * could be optimized in the future to use a modified key cache
1457 * design to support per-STA RX GTK, but until that gets
1458 * implemented, use of software crypto for group addressed
1459 * frames is a acceptable to allow RSN IBSS to be used.
1464 mutex_lock(&sc->mutex);
1465 ath9k_ps_wakeup(sc);
1466 ath_dbg(common, CONFIG, "Set HW Key\n");
1471 ath9k_del_ps_key(sc, vif, sta);
1473 ret = ath_key_config(common, vif, sta, key);
1475 key->hw_key_idx = ret;
1476 /* push IV and Michael MIC generation to stack */
1477 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1478 if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
1479 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1480 if (sc->sc_ah->sw_mgmt_crypto &&
1481 key->cipher == WLAN_CIPHER_SUITE_CCMP)
1482 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
1487 ath_key_delete(common, key);
1493 ath9k_ps_restore(sc);
1494 mutex_unlock(&sc->mutex);
1499 static void ath9k_set_assoc_state(struct ath_softc *sc,
1500 struct ieee80211_vif *vif)
1502 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1503 struct ath_vif *avp = (void *)vif->drv_priv;
1504 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1505 unsigned long flags;
1507 set_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1508 avp->primary_sta_vif = true;
1511 * Set the AID, BSSID and do beacon-sync only when
1512 * the HW opmode is STATION.
1514 * But the primary bit is set above in any case.
1516 if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
1519 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1520 common->curaid = bss_conf->aid;
1521 ath9k_hw_write_associd(sc->sc_ah);
1523 sc->last_rssi = ATH_RSSI_DUMMY_MARKER;
1524 sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
1526 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1527 sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
1528 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1530 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1531 ath9k_mci_update_wlan_channels(sc, false);
1533 ath_dbg(common, CONFIG,
1534 "Primary Station interface: %pM, BSSID: %pM\n",
1535 vif->addr, common->curbssid);
1538 static void ath9k_bss_assoc_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
1540 struct ath_softc *sc = data;
1541 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1543 if (test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags))
1546 if (bss_conf->assoc)
1547 ath9k_set_assoc_state(sc, vif);
1550 static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
1551 struct ieee80211_vif *vif,
1552 struct ieee80211_bss_conf *bss_conf,
1556 (BSS_CHANGED_ASSOC | \
1557 BSS_CHANGED_IBSS | \
1558 BSS_CHANGED_BEACON_ENABLED)
1560 struct ath_softc *sc = hw->priv;
1561 struct ath_hw *ah = sc->sc_ah;
1562 struct ath_common *common = ath9k_hw_common(ah);
1563 struct ath_vif *avp = (void *)vif->drv_priv;
1566 ath9k_ps_wakeup(sc);
1567 mutex_lock(&sc->mutex);
1569 if (changed & BSS_CHANGED_ASSOC) {
1570 ath_dbg(common, CONFIG, "BSSID %pM Changed ASSOC %d\n",
1571 bss_conf->bssid, bss_conf->assoc);
1573 if (avp->primary_sta_vif && !bss_conf->assoc) {
1574 clear_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1575 avp->primary_sta_vif = false;
1577 if (ah->opmode == NL80211_IFTYPE_STATION)
1578 clear_bit(SC_OP_BEACONS, &sc->sc_flags);
1581 ieee80211_iterate_active_interfaces_atomic(
1582 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1583 ath9k_bss_assoc_iter, sc);
1585 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags) &&
1586 ah->opmode == NL80211_IFTYPE_STATION) {
1587 memset(common->curbssid, 0, ETH_ALEN);
1589 ath9k_hw_write_associd(sc->sc_ah);
1590 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1591 ath9k_mci_update_wlan_channels(sc, true);
1595 if (changed & BSS_CHANGED_IBSS) {
1596 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1597 common->curaid = bss_conf->aid;
1598 ath9k_hw_write_associd(sc->sc_ah);
1601 if ((changed & BSS_CHANGED_BEACON_ENABLED) ||
1602 (changed & BSS_CHANGED_BEACON_INT)) {
1603 if (ah->opmode == NL80211_IFTYPE_AP &&
1604 bss_conf->enable_beacon)
1605 ath9k_set_tsfadjust(sc, vif);
1606 if (ath9k_allow_beacon_config(sc, vif))
1607 ath9k_beacon_config(sc, vif, changed);
1610 if (changed & BSS_CHANGED_ERP_SLOT) {
1611 if (bss_conf->use_short_slot)
1615 if (vif->type == NL80211_IFTYPE_AP) {
1617 * Defer update, so that connected stations can adjust
1618 * their settings at the same time.
1619 * See beacon.c for more details
1621 sc->beacon.slottime = slottime;
1622 sc->beacon.updateslot = UPDATE;
1624 ah->slottime = slottime;
1625 ath9k_hw_init_global_settings(ah);
1629 if (changed & CHECK_ANI)
1632 mutex_unlock(&sc->mutex);
1633 ath9k_ps_restore(sc);
1638 static u64 ath9k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1640 struct ath_softc *sc = hw->priv;
1643 mutex_lock(&sc->mutex);
1644 ath9k_ps_wakeup(sc);
1645 tsf = ath9k_hw_gettsf64(sc->sc_ah);
1646 ath9k_ps_restore(sc);
1647 mutex_unlock(&sc->mutex);
1652 static void ath9k_set_tsf(struct ieee80211_hw *hw,
1653 struct ieee80211_vif *vif,
1656 struct ath_softc *sc = hw->priv;
1658 mutex_lock(&sc->mutex);
1659 ath9k_ps_wakeup(sc);
1660 ath9k_hw_settsf64(sc->sc_ah, tsf);
1661 ath9k_ps_restore(sc);
1662 mutex_unlock(&sc->mutex);
1665 static void ath9k_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1667 struct ath_softc *sc = hw->priv;
1669 mutex_lock(&sc->mutex);
1671 ath9k_ps_wakeup(sc);
1672 ath9k_hw_reset_tsf(sc->sc_ah);
1673 ath9k_ps_restore(sc);
1675 mutex_unlock(&sc->mutex);
1678 static int ath9k_ampdu_action(struct ieee80211_hw *hw,
1679 struct ieee80211_vif *vif,
1680 enum ieee80211_ampdu_mlme_action action,
1681 struct ieee80211_sta *sta,
1682 u16 tid, u16 *ssn, u8 buf_size)
1684 struct ath_softc *sc = hw->priv;
1688 mutex_lock(&sc->mutex);
1691 case IEEE80211_AMPDU_RX_START:
1693 case IEEE80211_AMPDU_RX_STOP:
1695 case IEEE80211_AMPDU_TX_START:
1696 ath9k_ps_wakeup(sc);
1697 ret = ath_tx_aggr_start(sc, sta, tid, ssn);
1699 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1700 ath9k_ps_restore(sc);
1702 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1703 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1705 case IEEE80211_AMPDU_TX_STOP_CONT:
1706 ath9k_ps_wakeup(sc);
1707 ath_tx_aggr_stop(sc, sta, tid);
1709 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1710 ath9k_ps_restore(sc);
1712 case IEEE80211_AMPDU_TX_OPERATIONAL:
1713 ath9k_ps_wakeup(sc);
1714 ath_tx_aggr_resume(sc, sta, tid);
1715 ath9k_ps_restore(sc);
1718 ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n");
1721 mutex_unlock(&sc->mutex);
1726 static int ath9k_get_survey(struct ieee80211_hw *hw, int idx,
1727 struct survey_info *survey)
1729 struct ath_softc *sc = hw->priv;
1730 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1731 struct ieee80211_supported_band *sband;
1732 struct ieee80211_channel *chan;
1733 unsigned long flags;
1736 spin_lock_irqsave(&common->cc_lock, flags);
1738 ath_update_survey_stats(sc);
1740 sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
1741 if (sband && idx >= sband->n_channels) {
1742 idx -= sband->n_channels;
1747 sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
1749 if (!sband || idx >= sband->n_channels) {
1750 spin_unlock_irqrestore(&common->cc_lock, flags);
1754 chan = &sband->channels[idx];
1755 pos = chan->hw_value;
1756 memcpy(survey, &sc->survey[pos], sizeof(*survey));
1757 survey->channel = chan;
1758 spin_unlock_irqrestore(&common->cc_lock, flags);
1763 static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
1765 struct ath_softc *sc = hw->priv;
1766 struct ath_hw *ah = sc->sc_ah;
1768 mutex_lock(&sc->mutex);
1769 ah->coverage_class = coverage_class;
1771 ath9k_ps_wakeup(sc);
1772 ath9k_hw_init_global_settings(ah);
1773 ath9k_ps_restore(sc);
1775 mutex_unlock(&sc->mutex);
1778 static void ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1780 struct ath_softc *sc = hw->priv;
1781 struct ath_hw *ah = sc->sc_ah;
1782 struct ath_common *common = ath9k_hw_common(ah);
1783 int timeout = 200; /* ms */
1787 mutex_lock(&sc->mutex);
1788 cancel_delayed_work_sync(&sc->tx_complete_work);
1790 if (ah->ah_flags & AH_UNPLUGGED) {
1791 ath_dbg(common, ANY, "Device has been unplugged!\n");
1792 mutex_unlock(&sc->mutex);
1796 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
1797 ath_dbg(common, ANY, "Device not present\n");
1798 mutex_unlock(&sc->mutex);
1802 for (j = 0; j < timeout; j++) {
1806 usleep_range(1000, 2000);
1808 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1809 if (!ATH_TXQ_SETUP(sc, i))
1812 npend = ath9k_has_pending_frames(sc, &sc->tx.txq[i]);
1823 ath9k_ps_wakeup(sc);
1824 spin_lock_bh(&sc->sc_pcu_lock);
1825 drain_txq = ath_drain_all_txq(sc);
1826 spin_unlock_bh(&sc->sc_pcu_lock);
1831 ath9k_ps_restore(sc);
1832 ieee80211_wake_queues(hw);
1835 ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
1836 mutex_unlock(&sc->mutex);
1839 static bool ath9k_tx_frames_pending(struct ieee80211_hw *hw)
1841 struct ath_softc *sc = hw->priv;
1844 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1845 if (!ATH_TXQ_SETUP(sc, i))
1848 if (ath9k_has_pending_frames(sc, &sc->tx.txq[i]))
1854 static int ath9k_tx_last_beacon(struct ieee80211_hw *hw)
1856 struct ath_softc *sc = hw->priv;
1857 struct ath_hw *ah = sc->sc_ah;
1858 struct ieee80211_vif *vif;
1859 struct ath_vif *avp;
1861 struct ath_tx_status ts;
1862 bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
1865 vif = sc->beacon.bslot[0];
1869 if (!vif->bss_conf.enable_beacon)
1872 avp = (void *)vif->drv_priv;
1874 if (!sc->beacon.tx_processed && !edma) {
1875 tasklet_disable(&sc->bcon_tasklet);
1878 if (!bf || !bf->bf_mpdu)
1881 status = ath9k_hw_txprocdesc(ah, bf->bf_desc, &ts);
1882 if (status == -EINPROGRESS)
1885 sc->beacon.tx_processed = true;
1886 sc->beacon.tx_last = !(ts.ts_status & ATH9K_TXERR_MASK);
1889 tasklet_enable(&sc->bcon_tasklet);
1892 return sc->beacon.tx_last;
1895 static int ath9k_get_stats(struct ieee80211_hw *hw,
1896 struct ieee80211_low_level_stats *stats)
1898 struct ath_softc *sc = hw->priv;
1899 struct ath_hw *ah = sc->sc_ah;
1900 struct ath9k_mib_stats *mib_stats = &ah->ah_mibStats;
1902 stats->dot11ACKFailureCount = mib_stats->ackrcv_bad;
1903 stats->dot11RTSFailureCount = mib_stats->rts_bad;
1904 stats->dot11FCSErrorCount = mib_stats->fcs_bad;
1905 stats->dot11RTSSuccessCount = mib_stats->rts_good;
1909 static u32 fill_chainmask(u32 cap, u32 new)
1914 for (i = 0; cap && new; i++, cap >>= 1) {
1915 if (!(cap & BIT(0)))
1927 static bool validate_antenna_mask(struct ath_hw *ah, u32 val)
1929 if (AR_SREV_9300_20_OR_LATER(ah))
1932 switch (val & 0x7) {
1938 return (ah->caps.rx_chainmask == 1);
1944 static int ath9k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
1946 struct ath_softc *sc = hw->priv;
1947 struct ath_hw *ah = sc->sc_ah;
1949 if (ah->caps.rx_chainmask != 1)
1952 if (!validate_antenna_mask(ah, rx_ant) || !tx_ant)
1955 sc->ant_rx = rx_ant;
1956 sc->ant_tx = tx_ant;
1958 if (ah->caps.rx_chainmask == 1)
1961 /* AR9100 runs into calibration issues if not all rx chains are enabled */
1962 if (AR_SREV_9100(ah))
1963 ah->rxchainmask = 0x7;
1965 ah->rxchainmask = fill_chainmask(ah->caps.rx_chainmask, rx_ant);
1967 ah->txchainmask = fill_chainmask(ah->caps.tx_chainmask, tx_ant);
1968 ath9k_reload_chainmask_settings(sc);
1973 static int ath9k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
1975 struct ath_softc *sc = hw->priv;
1977 *tx_ant = sc->ant_tx;
1978 *rx_ant = sc->ant_rx;
1982 #ifdef CONFIG_PM_SLEEP
1984 static void ath9k_wow_map_triggers(struct ath_softc *sc,
1985 struct cfg80211_wowlan *wowlan,
1988 if (wowlan->disconnect)
1989 *wow_triggers |= AH_WOW_LINK_CHANGE |
1991 if (wowlan->magic_pkt)
1992 *wow_triggers |= AH_WOW_MAGIC_PATTERN_EN;
1994 if (wowlan->n_patterns)
1995 *wow_triggers |= AH_WOW_USER_PATTERN_EN;
1997 sc->wow_enabled = *wow_triggers;
2001 static void ath9k_wow_add_disassoc_deauth_pattern(struct ath_softc *sc)
2003 struct ath_hw *ah = sc->sc_ah;
2004 struct ath_common *common = ath9k_hw_common(ah);
2005 int pattern_count = 0;
2007 u8 dis_deauth_pattern[MAX_PATTERN_SIZE];
2008 u8 dis_deauth_mask[MAX_PATTERN_SIZE];
2010 memset(dis_deauth_pattern, 0, MAX_PATTERN_SIZE);
2011 memset(dis_deauth_mask, 0, MAX_PATTERN_SIZE);
2014 * Create Dissassociate / Deauthenticate packet filter
2016 * 2 bytes 2 byte 6 bytes 6 bytes 6 bytes
2017 * +--------------+----------+---------+--------+--------+----
2018 * + Frame Control+ Duration + DA + SA + BSSID +
2019 * +--------------+----------+---------+--------+--------+----
2021 * The above is the management frame format for disassociate/
2022 * deauthenticate pattern, from this we need to match the first byte
2023 * of 'Frame Control' and DA, SA, and BSSID fields
2024 * (skipping 2nd byte of FC and Duration feild.
2026 * Disassociate pattern
2027 * --------------------
2028 * Frame control = 00 00 1010
2029 * DA, SA, BSSID = x:x:x:x:x:x
2030 * Pattern will be A0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2031 * | x:x:x:x:x:x -- 22 bytes
2033 * Deauthenticate pattern
2034 * ----------------------
2035 * Frame control = 00 00 1100
2036 * DA, SA, BSSID = x:x:x:x:x:x
2037 * Pattern will be C0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2038 * | x:x:x:x:x:x -- 22 bytes
2041 /* Create Disassociate Pattern first */
2045 /* Fill out the mask with all FF's */
2047 for (i = 0; i < MAX_PATTERN_MASK_SIZE; i++)
2048 dis_deauth_mask[i] = 0xff;
2050 /* copy the first byte of frame control field */
2051 dis_deauth_pattern[byte_cnt] = 0xa0;
2054 /* skip 2nd byte of frame control and Duration field */
2058 * need not match the destination mac address, it can be a broadcast
2059 * mac address or an unicast to this station
2063 /* copy the source mac address */
2064 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2068 /* copy the bssid, its same as the source mac address */
2070 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2072 /* Create Disassociate pattern mask */
2074 dis_deauth_mask[0] = 0xfe;
2075 dis_deauth_mask[1] = 0x03;
2076 dis_deauth_mask[2] = 0xc0;
2078 ath_dbg(common, WOW, "Adding disassoc/deauth patterns for WoW\n");
2080 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2081 pattern_count, byte_cnt);
2085 * for de-authenticate pattern, only the first byte of the frame
2086 * control field gets changed from 0xA0 to 0xC0
2088 dis_deauth_pattern[0] = 0xC0;
2090 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2091 pattern_count, byte_cnt);
2095 static void ath9k_wow_add_pattern(struct ath_softc *sc,
2096 struct cfg80211_wowlan *wowlan)
2098 struct ath_hw *ah = sc->sc_ah;
2099 struct ath9k_wow_pattern *wow_pattern = NULL;
2100 struct cfg80211_pkt_pattern *patterns = wowlan->patterns;
2104 if (!wowlan->n_patterns)
2108 * Add the new user configured patterns
2110 for (i = 0; i < wowlan->n_patterns; i++) {
2112 wow_pattern = kzalloc(sizeof(*wow_pattern), GFP_KERNEL);
2118 * TODO: convert the generic user space pattern to
2119 * appropriate chip specific/802.11 pattern.
2122 mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
2123 memset(wow_pattern->pattern_bytes, 0, MAX_PATTERN_SIZE);
2124 memset(wow_pattern->mask_bytes, 0, MAX_PATTERN_SIZE);
2125 memcpy(wow_pattern->pattern_bytes, patterns[i].pattern,
2126 patterns[i].pattern_len);
2127 memcpy(wow_pattern->mask_bytes, patterns[i].mask, mask_len);
2128 wow_pattern->pattern_len = patterns[i].pattern_len;
2131 * just need to take care of deauth and disssoc pattern,
2132 * make sure we don't overwrite them.
2135 ath9k_hw_wow_apply_pattern(ah, wow_pattern->pattern_bytes,
2136 wow_pattern->mask_bytes,
2138 wow_pattern->pattern_len);
2145 static int ath9k_suspend(struct ieee80211_hw *hw,
2146 struct cfg80211_wowlan *wowlan)
2148 struct ath_softc *sc = hw->priv;
2149 struct ath_hw *ah = sc->sc_ah;
2150 struct ath_common *common = ath9k_hw_common(ah);
2151 u32 wow_triggers_enabled = 0;
2154 mutex_lock(&sc->mutex);
2156 ath_cancel_work(sc);
2158 del_timer_sync(&sc->rx_poll_timer);
2160 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
2161 ath_dbg(common, ANY, "Device not present\n");
2166 if (WARN_ON(!wowlan)) {
2167 ath_dbg(common, WOW, "None of the WoW triggers enabled\n");
2172 if (!device_can_wakeup(sc->dev)) {
2173 ath_dbg(common, WOW, "device_can_wakeup failed, WoW is not enabled\n");
2179 * none of the sta vifs are associated
2180 * and we are not currently handling multivif
2181 * cases, for instance we have to seperately
2182 * configure 'keep alive frame' for each
2186 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
2187 ath_dbg(common, WOW, "None of the STA vifs are associated\n");
2192 if (sc->nvifs > 1) {
2193 ath_dbg(common, WOW, "WoW for multivif is not yet supported\n");
2198 ath9k_wow_map_triggers(sc, wowlan, &wow_triggers_enabled);
2200 ath_dbg(common, WOW, "WoW triggers enabled 0x%x\n",
2201 wow_triggers_enabled);
2203 ath9k_ps_wakeup(sc);
2205 ath9k_stop_btcoex(sc);
2208 * Enable wake up on recieving disassoc/deauth
2211 ath9k_wow_add_disassoc_deauth_pattern(sc);
2213 if (wow_triggers_enabled & AH_WOW_USER_PATTERN_EN)
2214 ath9k_wow_add_pattern(sc, wowlan);
2216 spin_lock_bh(&sc->sc_pcu_lock);
2218 * To avoid false wake, we enable beacon miss interrupt only
2219 * when we go to sleep. We save the current interrupt mask
2220 * so we can restore it after the system wakes up
2222 sc->wow_intr_before_sleep = ah->imask;
2223 ah->imask &= ~ATH9K_INT_GLOBAL;
2224 ath9k_hw_disable_interrupts(ah);
2225 ah->imask = ATH9K_INT_BMISS | ATH9K_INT_GLOBAL;
2226 ath9k_hw_set_interrupts(ah);
2227 ath9k_hw_enable_interrupts(ah);
2229 spin_unlock_bh(&sc->sc_pcu_lock);
2232 * we can now sync irq and kill any running tasklets, since we already
2233 * disabled interrupts and not holding a spin lock
2235 synchronize_irq(sc->irq);
2236 tasklet_kill(&sc->intr_tq);
2238 ath9k_hw_wow_enable(ah, wow_triggers_enabled);
2240 ath9k_ps_restore(sc);
2241 ath_dbg(common, ANY, "WoW enabled in ath9k\n");
2242 atomic_inc(&sc->wow_sleep_proc_intr);
2245 mutex_unlock(&sc->mutex);
2249 static int ath9k_resume(struct ieee80211_hw *hw)
2251 struct ath_softc *sc = hw->priv;
2252 struct ath_hw *ah = sc->sc_ah;
2253 struct ath_common *common = ath9k_hw_common(ah);
2256 mutex_lock(&sc->mutex);
2258 ath9k_ps_wakeup(sc);
2260 spin_lock_bh(&sc->sc_pcu_lock);
2262 ath9k_hw_disable_interrupts(ah);
2263 ah->imask = sc->wow_intr_before_sleep;
2264 ath9k_hw_set_interrupts(ah);
2265 ath9k_hw_enable_interrupts(ah);
2267 spin_unlock_bh(&sc->sc_pcu_lock);
2269 wow_status = ath9k_hw_wow_wakeup(ah);
2271 if (atomic_read(&sc->wow_got_bmiss_intr) == 0) {
2273 * some devices may not pick beacon miss
2274 * as the reason they woke up so we add
2275 * that here for that shortcoming.
2277 wow_status |= AH_WOW_BEACON_MISS;
2278 atomic_dec(&sc->wow_got_bmiss_intr);
2279 ath_dbg(common, ANY, "Beacon miss interrupt picked up during WoW sleep\n");
2282 atomic_dec(&sc->wow_sleep_proc_intr);
2285 ath_dbg(common, ANY, "Waking up due to WoW triggers %s with WoW status = %x\n",
2286 ath9k_hw_wow_event_to_string(wow_status), wow_status);
2289 ath_restart_work(sc);
2290 ath9k_start_btcoex(sc);
2292 ath9k_ps_restore(sc);
2293 mutex_unlock(&sc->mutex);
2298 static void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2300 struct ath_softc *sc = hw->priv;
2302 mutex_lock(&sc->mutex);
2303 device_init_wakeup(sc->dev, 1);
2304 device_set_wakeup_enable(sc->dev, enabled);
2305 mutex_unlock(&sc->mutex);
2309 static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
2311 struct ath_softc *sc = hw->priv;
2312 set_bit(SC_OP_SCANNING, &sc->sc_flags);
2315 static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
2317 struct ath_softc *sc = hw->priv;
2318 clear_bit(SC_OP_SCANNING, &sc->sc_flags);
2321 struct ieee80211_ops ath9k_ops = {
2323 .start = ath9k_start,
2325 .add_interface = ath9k_add_interface,
2326 .change_interface = ath9k_change_interface,
2327 .remove_interface = ath9k_remove_interface,
2328 .config = ath9k_config,
2329 .configure_filter = ath9k_configure_filter,
2330 .sta_add = ath9k_sta_add,
2331 .sta_remove = ath9k_sta_remove,
2332 .sta_notify = ath9k_sta_notify,
2333 .conf_tx = ath9k_conf_tx,
2334 .bss_info_changed = ath9k_bss_info_changed,
2335 .set_key = ath9k_set_key,
2336 .get_tsf = ath9k_get_tsf,
2337 .set_tsf = ath9k_set_tsf,
2338 .reset_tsf = ath9k_reset_tsf,
2339 .ampdu_action = ath9k_ampdu_action,
2340 .get_survey = ath9k_get_survey,
2341 .rfkill_poll = ath9k_rfkill_poll_state,
2342 .set_coverage_class = ath9k_set_coverage_class,
2343 .flush = ath9k_flush,
2344 .tx_frames_pending = ath9k_tx_frames_pending,
2345 .tx_last_beacon = ath9k_tx_last_beacon,
2346 .release_buffered_frames = ath9k_release_buffered_frames,
2347 .get_stats = ath9k_get_stats,
2348 .set_antenna = ath9k_set_antenna,
2349 .get_antenna = ath9k_get_antenna,
2351 #ifdef CONFIG_PM_SLEEP
2352 .suspend = ath9k_suspend,
2353 .resume = ath9k_resume,
2354 .set_wakeup = ath9k_set_wakeup,
2357 #ifdef CONFIG_ATH9K_DEBUGFS
2358 .get_et_sset_count = ath9k_get_et_sset_count,
2359 .get_et_stats = ath9k_get_et_stats,
2360 .get_et_strings = ath9k_get_et_strings,
2363 #if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_DEBUGFS)
2364 .sta_add_debugfs = ath9k_sta_add_debugfs,
2366 .sw_scan_start = ath9k_sw_scan_start,
2367 .sw_scan_complete = ath9k_sw_scan_complete,