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);
212 if (ath_startrecv(sc) != 0) {
213 ath_err(common, "Unable to restart recv logic\n");
217 ath9k_cmn_update_txpow(ah, sc->curtxpow,
218 sc->config.txpowlimit, &sc->curtxpow);
220 clear_bit(SC_OP_HW_RESET, &sc->sc_flags);
221 ath9k_hw_set_interrupts(ah);
222 ath9k_hw_enable_interrupts(ah);
224 if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) && start) {
225 if (!test_bit(SC_OP_BEACONS, &sc->sc_flags))
228 if (ah->opmode == NL80211_IFTYPE_STATION &&
229 test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
230 spin_lock_irqsave(&sc->sc_pm_lock, flags);
231 sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
232 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
234 ath9k_set_beacon(sc);
237 ath_restart_work(sc);
240 if ((ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) && sc->ant_rx != 3)
241 ath_ant_comb_update(sc);
243 ieee80211_wake_queues(sc->hw);
248 static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan)
250 struct ath_hw *ah = sc->sc_ah;
251 struct ath_common *common = ath9k_hw_common(ah);
252 struct ath9k_hw_cal_data *caldata = NULL;
256 __ath_cancel_work(sc);
258 tasklet_disable(&sc->intr_tq);
259 spin_lock_bh(&sc->sc_pcu_lock);
261 if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) {
263 caldata = &sc->caldata;
271 if (!ath_prepare_reset(sc))
274 ath_dbg(common, CONFIG, "Reset to %u MHz, HT40: %d fastcc: %d\n",
275 hchan->channel, IS_CHAN_HT40(hchan), fastcc);
277 r = ath9k_hw_reset(ah, hchan, caldata, fastcc);
280 "Unable to reset channel, reset status %d\n", r);
282 ath9k_hw_enable_interrupts(ah);
283 ath9k_queue_reset(sc, RESET_TYPE_BB_HANG);
288 if (ath9k_hw_mci_is_enabled(sc->sc_ah) &&
289 (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
290 ath9k_mci_set_txpower(sc, true, false);
292 if (!ath_complete_reset(sc, true))
296 spin_unlock_bh(&sc->sc_pcu_lock);
297 tasklet_enable(&sc->intr_tq);
304 * Set/change channels. If the channel is really being changed, it's done
305 * by reseting the chip. To accomplish this we must first cleanup any pending
306 * DMA, then restart stuff.
308 static int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
309 struct ath9k_channel *hchan)
313 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
316 r = ath_reset_internal(sc, hchan);
321 static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
322 struct ieee80211_vif *vif)
325 an = (struct ath_node *)sta->drv_priv;
331 ath_tx_node_init(sc, an);
333 if (sta->ht_cap.ht_supported) {
334 an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
335 sta->ht_cap.ampdu_factor);
336 an->mpdudensity = ath9k_parse_mpdudensity(sta->ht_cap.ampdu_density);
340 static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
342 struct ath_node *an = (struct ath_node *)sta->drv_priv;
343 ath_tx_node_cleanup(sc, an);
346 void ath9k_tasklet(unsigned long data)
348 struct ath_softc *sc = (struct ath_softc *)data;
349 struct ath_hw *ah = sc->sc_ah;
350 struct ath_common *common = ath9k_hw_common(ah);
351 enum ath_reset_type type;
353 u32 status = sc->intrstatus;
357 spin_lock(&sc->sc_pcu_lock);
359 if ((status & ATH9K_INT_FATAL) ||
360 (status & ATH9K_INT_BB_WATCHDOG)) {
362 if (status & ATH9K_INT_FATAL)
363 type = RESET_TYPE_FATAL_INT;
365 type = RESET_TYPE_BB_WATCHDOG;
367 ath9k_queue_reset(sc, type);
371 spin_lock_irqsave(&sc->sc_pm_lock, flags);
372 if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) {
374 * TSF sync does not look correct; remain awake to sync with
377 ath_dbg(common, PS, "TSFOOR - Sync with next Beacon\n");
378 sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC;
380 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
382 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
383 rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL |
386 rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
388 if (status & rxmask) {
389 /* Check for high priority Rx first */
390 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
391 (status & ATH9K_INT_RXHP))
392 ath_rx_tasklet(sc, 0, true);
394 ath_rx_tasklet(sc, 0, false);
397 if (status & ATH9K_INT_TX) {
398 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
399 ath_tx_edma_tasklet(sc);
404 ath9k_btcoex_handle_interrupt(sc, status);
407 /* re-enable hardware interrupt */
408 ath9k_hw_enable_interrupts(ah);
410 spin_unlock(&sc->sc_pcu_lock);
411 ath9k_ps_restore(sc);
414 irqreturn_t ath_isr(int irq, void *dev)
416 #define SCHED_INTR ( \
418 ATH9K_INT_BB_WATCHDOG | \
428 ATH9K_INT_GENTIMER | \
431 struct ath_softc *sc = dev;
432 struct ath_hw *ah = sc->sc_ah;
433 struct ath_common *common = ath9k_hw_common(ah);
434 enum ath9k_int status;
438 * The hardware is not ready/present, don't
439 * touch anything. Note this can happen early
440 * on if the IRQ is shared.
442 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
445 /* shared irq, not for us */
447 if (!ath9k_hw_intrpend(ah))
450 if (test_bit(SC_OP_HW_RESET, &sc->sc_flags)) {
451 ath9k_hw_kill_interrupts(ah);
456 * Figure out the reason(s) for the interrupt. Note
457 * that the hal returns a pseudo-ISR that may include
458 * bits we haven't explicitly enabled so we mask the
459 * value to insure we only process bits we requested.
461 ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */
462 status &= ah->imask; /* discard unasked-for bits */
465 * If there are no status bits set, then this interrupt was not
466 * for me (should have been caught above).
471 /* Cache the status */
472 sc->intrstatus = status;
474 if (status & SCHED_INTR)
478 * If a FATAL or RXORN interrupt is received, we have to reset the
481 if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) &&
482 !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)))
485 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
486 (status & ATH9K_INT_BB_WATCHDOG)) {
488 spin_lock(&common->cc_lock);
489 ath_hw_cycle_counters_update(common);
490 ar9003_hw_bb_watchdog_dbg_info(ah);
491 spin_unlock(&common->cc_lock);
495 #ifdef CONFIG_PM_SLEEP
496 if (status & ATH9K_INT_BMISS) {
497 if (atomic_read(&sc->wow_sleep_proc_intr) == 0) {
498 ath_dbg(common, ANY, "during WoW we got a BMISS\n");
499 atomic_inc(&sc->wow_got_bmiss_intr);
500 atomic_dec(&sc->wow_sleep_proc_intr);
504 if (status & ATH9K_INT_SWBA)
505 tasklet_schedule(&sc->bcon_tasklet);
507 if (status & ATH9K_INT_TXURN)
508 ath9k_hw_updatetxtriglevel(ah, true);
510 if (status & ATH9K_INT_RXEOL) {
511 ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
512 ath9k_hw_set_interrupts(ah);
515 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
516 if (status & ATH9K_INT_TIM_TIMER) {
517 if (ATH_DBG_WARN_ON_ONCE(sc->ps_idle))
519 /* Clear RxAbort bit so that we can
521 ath9k_setpower(sc, ATH9K_PM_AWAKE);
522 spin_lock(&sc->sc_pm_lock);
523 ath9k_hw_setrxabort(sc->sc_ah, 0);
524 sc->ps_flags |= PS_WAIT_FOR_BEACON;
525 spin_unlock(&sc->sc_pm_lock);
530 ath_debug_stat_interrupt(sc, status);
533 /* turn off every interrupt */
534 ath9k_hw_disable_interrupts(ah);
535 tasklet_schedule(&sc->intr_tq);
543 static int ath_reset(struct ath_softc *sc)
549 r = ath_reset_internal(sc, NULL);
551 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
552 if (!ATH_TXQ_SETUP(sc, i))
555 spin_lock_bh(&sc->tx.txq[i].axq_lock);
556 ath_txq_schedule(sc, &sc->tx.txq[i]);
557 spin_unlock_bh(&sc->tx.txq[i].axq_lock);
560 ath9k_ps_restore(sc);
565 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type)
567 #ifdef CONFIG_ATH9K_DEBUGFS
568 RESET_STAT_INC(sc, type);
570 set_bit(SC_OP_HW_RESET, &sc->sc_flags);
571 ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
574 void ath_reset_work(struct work_struct *work)
576 struct ath_softc *sc = container_of(work, struct ath_softc, hw_reset_work);
581 /**********************/
582 /* mac80211 callbacks */
583 /**********************/
585 static int ath9k_start(struct ieee80211_hw *hw)
587 struct ath_softc *sc = hw->priv;
588 struct ath_hw *ah = sc->sc_ah;
589 struct ath_common *common = ath9k_hw_common(ah);
590 struct ieee80211_channel *curchan = hw->conf.chandef.chan;
591 struct ath9k_channel *init_channel;
594 ath_dbg(common, CONFIG,
595 "Starting driver with initial channel: %d MHz\n",
596 curchan->center_freq);
599 mutex_lock(&sc->mutex);
601 init_channel = ath9k_cmn_get_curchannel(hw, ah);
603 /* Reset SERDES registers */
604 ath9k_hw_configpcipowersave(ah, false);
607 * The basic interface to setting the hardware in a good
608 * state is ``reset''. On return the hardware is known to
609 * be powered up and with interrupts disabled. This must
610 * be followed by initialization of the appropriate bits
611 * and then setup of the interrupt mask.
613 spin_lock_bh(&sc->sc_pcu_lock);
615 atomic_set(&ah->intr_ref_cnt, -1);
617 r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
620 "Unable to reset hardware; reset status %d (freq %u MHz)\n",
621 r, curchan->center_freq);
622 ah->reset_power_on = false;
625 /* Setup our intr mask. */
626 ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL |
627 ATH9K_INT_RXORN | ATH9K_INT_FATAL |
630 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
631 ah->imask |= ATH9K_INT_RXHP |
633 ATH9K_INT_BB_WATCHDOG;
635 ah->imask |= ATH9K_INT_RX;
637 ah->imask |= ATH9K_INT_GTT;
639 if (ah->caps.hw_caps & ATH9K_HW_CAP_HT)
640 ah->imask |= ATH9K_INT_CST;
644 clear_bit(SC_OP_INVALID, &sc->sc_flags);
645 sc->sc_ah->is_monitoring = false;
647 if (!ath_complete_reset(sc, false))
648 ah->reset_power_on = false;
650 if (ah->led_pin >= 0) {
651 ath9k_hw_cfg_output(ah, ah->led_pin,
652 AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
653 ath9k_hw_set_gpio(ah, ah->led_pin, 0);
657 * Reset key cache to sane defaults (all entries cleared) instead of
658 * semi-random values after suspend/resume.
660 ath9k_cmn_init_crypto(sc->sc_ah);
662 spin_unlock_bh(&sc->sc_pcu_lock);
664 mutex_unlock(&sc->mutex);
666 ath9k_ps_restore(sc);
671 static void ath9k_tx(struct ieee80211_hw *hw,
672 struct ieee80211_tx_control *control,
675 struct ath_softc *sc = hw->priv;
676 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
677 struct ath_tx_control txctl;
678 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
681 if (sc->ps_enabled) {
683 * mac80211 does not set PM field for normal data frames, so we
684 * need to update that based on the current PS mode.
686 if (ieee80211_is_data(hdr->frame_control) &&
687 !ieee80211_is_nullfunc(hdr->frame_control) &&
688 !ieee80211_has_pm(hdr->frame_control)) {
690 "Add PM=1 for a TX frame while in PS mode\n");
691 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
695 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP)) {
697 * We are using PS-Poll and mac80211 can request TX while in
698 * power save mode. Need to wake up hardware for the TX to be
699 * completed and if needed, also for RX of buffered frames.
702 spin_lock_irqsave(&sc->sc_pm_lock, flags);
703 if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
704 ath9k_hw_setrxabort(sc->sc_ah, 0);
705 if (ieee80211_is_pspoll(hdr->frame_control)) {
707 "Sending PS-Poll to pick a buffered frame\n");
708 sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA;
710 ath_dbg(common, PS, "Wake up to complete TX\n");
711 sc->ps_flags |= PS_WAIT_FOR_TX_ACK;
714 * The actual restore operation will happen only after
715 * the ps_flags bit is cleared. We are just dropping
716 * the ps_usecount here.
718 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
719 ath9k_ps_restore(sc);
723 * Cannot tx while the hardware is in full sleep, it first needs a full
724 * chip reset to recover from that
726 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_FULL_SLEEP)) {
727 ath_err(common, "TX while HW is in FULL_SLEEP mode\n");
731 memset(&txctl, 0, sizeof(struct ath_tx_control));
732 txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)];
733 txctl.sta = control->sta;
735 ath_dbg(common, XMIT, "transmitting packet, skb: %p\n", skb);
737 if (ath_tx_start(hw, skb, &txctl) != 0) {
738 ath_dbg(common, XMIT, "TX failed\n");
739 TX_STAT_INC(txctl.txq->axq_qnum, txfailed);
745 ieee80211_free_txskb(hw, skb);
748 static void ath9k_stop(struct ieee80211_hw *hw)
750 struct ath_softc *sc = hw->priv;
751 struct ath_hw *ah = sc->sc_ah;
752 struct ath_common *common = ath9k_hw_common(ah);
755 mutex_lock(&sc->mutex);
758 del_timer_sync(&sc->rx_poll_timer);
760 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
761 ath_dbg(common, ANY, "Device not present\n");
762 mutex_unlock(&sc->mutex);
766 /* Ensure HW is awake when we try to shut it down. */
769 spin_lock_bh(&sc->sc_pcu_lock);
771 /* prevent tasklets to enable interrupts once we disable them */
772 ah->imask &= ~ATH9K_INT_GLOBAL;
774 /* make sure h/w will not generate any interrupt
775 * before setting the invalid flag. */
776 ath9k_hw_disable_interrupts(ah);
778 spin_unlock_bh(&sc->sc_pcu_lock);
780 /* we can now sync irq and kill any running tasklets, since we already
781 * disabled interrupts and not holding a spin lock */
782 synchronize_irq(sc->irq);
783 tasklet_kill(&sc->intr_tq);
784 tasklet_kill(&sc->bcon_tasklet);
786 prev_idle = sc->ps_idle;
789 spin_lock_bh(&sc->sc_pcu_lock);
791 if (ah->led_pin >= 0) {
792 ath9k_hw_set_gpio(ah, ah->led_pin, 1);
793 ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
796 ath_prepare_reset(sc);
799 dev_kfree_skb_any(sc->rx.frag);
804 ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
806 ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
807 ath9k_hw_phy_disable(ah);
809 ath9k_hw_configpcipowersave(ah, true);
811 spin_unlock_bh(&sc->sc_pcu_lock);
813 ath9k_ps_restore(sc);
815 set_bit(SC_OP_INVALID, &sc->sc_flags);
816 sc->ps_idle = prev_idle;
818 mutex_unlock(&sc->mutex);
820 ath_dbg(common, CONFIG, "Driver halt\n");
823 bool ath9k_uses_beacons(int type)
826 case NL80211_IFTYPE_AP:
827 case NL80211_IFTYPE_ADHOC:
828 case NL80211_IFTYPE_MESH_POINT:
835 static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
837 struct ath9k_vif_iter_data *iter_data = data;
840 if (iter_data->has_hw_macaddr) {
841 for (i = 0; i < ETH_ALEN; i++)
842 iter_data->mask[i] &=
843 ~(iter_data->hw_macaddr[i] ^ mac[i]);
845 memcpy(iter_data->hw_macaddr, mac, ETH_ALEN);
846 iter_data->has_hw_macaddr = true;
850 case NL80211_IFTYPE_AP:
853 case NL80211_IFTYPE_STATION:
854 iter_data->nstations++;
856 case NL80211_IFTYPE_ADHOC:
857 iter_data->nadhocs++;
859 case NL80211_IFTYPE_MESH_POINT:
860 iter_data->nmeshes++;
862 case NL80211_IFTYPE_WDS:
870 static void ath9k_sta_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
872 struct ath_softc *sc = data;
873 struct ath_vif *avp = (void *)vif->drv_priv;
875 if (vif->type != NL80211_IFTYPE_STATION)
878 if (avp->primary_sta_vif)
879 ath9k_set_assoc_state(sc, vif);
882 /* Called with sc->mutex held. */
883 void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
884 struct ieee80211_vif *vif,
885 struct ath9k_vif_iter_data *iter_data)
887 struct ath_softc *sc = hw->priv;
888 struct ath_hw *ah = sc->sc_ah;
889 struct ath_common *common = ath9k_hw_common(ah);
892 * Use the hardware MAC address as reference, the hardware uses it
893 * together with the BSSID mask when matching addresses.
895 memset(iter_data, 0, sizeof(*iter_data));
896 memset(&iter_data->mask, 0xff, ETH_ALEN);
899 ath9k_vif_iter(iter_data, vif->addr, vif);
901 /* Get list of all active MAC addresses */
902 ieee80211_iterate_active_interfaces_atomic(
903 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
904 ath9k_vif_iter, iter_data);
906 memcpy(common->macaddr, iter_data->hw_macaddr, ETH_ALEN);
909 /* Called with sc->mutex held. */
910 static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
911 struct ieee80211_vif *vif)
913 struct ath_softc *sc = hw->priv;
914 struct ath_hw *ah = sc->sc_ah;
915 struct ath_common *common = ath9k_hw_common(ah);
916 struct ath9k_vif_iter_data iter_data;
917 enum nl80211_iftype old_opmode = ah->opmode;
919 ath9k_calculate_iter_data(hw, vif, &iter_data);
921 memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
922 ath_hw_setbssidmask(common);
924 if (iter_data.naps > 0) {
925 ath9k_hw_set_tsfadjust(ah, true);
926 ah->opmode = NL80211_IFTYPE_AP;
928 ath9k_hw_set_tsfadjust(ah, false);
930 if (iter_data.nmeshes)
931 ah->opmode = NL80211_IFTYPE_MESH_POINT;
932 else if (iter_data.nwds)
933 ah->opmode = NL80211_IFTYPE_AP;
934 else if (iter_data.nadhocs)
935 ah->opmode = NL80211_IFTYPE_ADHOC;
937 ah->opmode = NL80211_IFTYPE_STATION;
940 ath9k_hw_setopmode(ah);
942 if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0)
943 ah->imask |= ATH9K_INT_TSFOOR;
945 ah->imask &= ~ATH9K_INT_TSFOOR;
947 ath9k_hw_set_interrupts(ah);
950 * If we are changing the opmode to STATION,
951 * a beacon sync needs to be done.
953 if (ah->opmode == NL80211_IFTYPE_STATION &&
954 old_opmode == NL80211_IFTYPE_AP &&
955 test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
956 ieee80211_iterate_active_interfaces_atomic(
957 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
958 ath9k_sta_vif_iter, sc);
962 static int ath9k_add_interface(struct ieee80211_hw *hw,
963 struct ieee80211_vif *vif)
965 struct ath_softc *sc = hw->priv;
966 struct ath_hw *ah = sc->sc_ah;
967 struct ath_common *common = ath9k_hw_common(ah);
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);
981 mutex_unlock(&sc->mutex);
985 static int ath9k_change_interface(struct ieee80211_hw *hw,
986 struct ieee80211_vif *vif,
987 enum nl80211_iftype new_type,
990 struct ath_softc *sc = hw->priv;
991 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
993 ath_dbg(common, CONFIG, "Change Interface\n");
994 mutex_lock(&sc->mutex);
996 if (ath9k_uses_beacons(vif->type))
997 ath9k_beacon_remove_slot(sc, vif);
999 vif->type = new_type;
1002 ath9k_ps_wakeup(sc);
1003 ath9k_calculate_summary_state(hw, vif);
1004 ath9k_ps_restore(sc);
1006 if (ath9k_uses_beacons(vif->type))
1007 ath9k_beacon_assign_slot(sc, vif);
1009 mutex_unlock(&sc->mutex);
1013 static void ath9k_remove_interface(struct ieee80211_hw *hw,
1014 struct ieee80211_vif *vif)
1016 struct ath_softc *sc = hw->priv;
1017 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1019 ath_dbg(common, CONFIG, "Detach Interface\n");
1021 mutex_lock(&sc->mutex);
1025 if (ath9k_uses_beacons(vif->type))
1026 ath9k_beacon_remove_slot(sc, vif);
1028 ath9k_ps_wakeup(sc);
1029 ath9k_calculate_summary_state(hw, NULL);
1030 ath9k_ps_restore(sc);
1032 mutex_unlock(&sc->mutex);
1035 static void ath9k_enable_ps(struct ath_softc *sc)
1037 struct ath_hw *ah = sc->sc_ah;
1038 struct ath_common *common = ath9k_hw_common(ah);
1040 sc->ps_enabled = true;
1041 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1042 if ((ah->imask & ATH9K_INT_TIM_TIMER) == 0) {
1043 ah->imask |= ATH9K_INT_TIM_TIMER;
1044 ath9k_hw_set_interrupts(ah);
1046 ath9k_hw_setrxabort(ah, 1);
1048 ath_dbg(common, PS, "PowerSave enabled\n");
1051 static void ath9k_disable_ps(struct ath_softc *sc)
1053 struct ath_hw *ah = sc->sc_ah;
1054 struct ath_common *common = ath9k_hw_common(ah);
1056 sc->ps_enabled = false;
1057 ath9k_hw_setpower(ah, ATH9K_PM_AWAKE);
1058 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1059 ath9k_hw_setrxabort(ah, 0);
1060 sc->ps_flags &= ~(PS_WAIT_FOR_BEACON |
1062 PS_WAIT_FOR_PSPOLL_DATA |
1063 PS_WAIT_FOR_TX_ACK);
1064 if (ah->imask & ATH9K_INT_TIM_TIMER) {
1065 ah->imask &= ~ATH9K_INT_TIM_TIMER;
1066 ath9k_hw_set_interrupts(ah);
1069 ath_dbg(common, PS, "PowerSave disabled\n");
1072 void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw)
1074 struct ath_softc *sc = hw->priv;
1075 struct ath_hw *ah = sc->sc_ah;
1076 struct ath_common *common = ath9k_hw_common(ah);
1079 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1080 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1084 ath9k_ps_wakeup(sc);
1085 rxfilter = ath9k_hw_getrxfilter(ah);
1086 ath9k_hw_setrxfilter(ah, rxfilter |
1087 ATH9K_RX_FILTER_PHYRADAR |
1088 ATH9K_RX_FILTER_PHYERR);
1090 /* TODO: usually this should not be neccesary, but for some reason
1091 * (or in some mode?) the trigger must be called after the
1092 * configuration, otherwise the register will have its values reset
1093 * (on my ar9220 to value 0x01002310)
1095 ath9k_spectral_scan_config(hw, sc->spectral_mode);
1096 ath9k_hw_ops(ah)->spectral_scan_trigger(ah);
1097 ath9k_ps_restore(sc);
1100 int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
1101 enum spectral_mode spectral_mode)
1103 struct ath_softc *sc = hw->priv;
1104 struct ath_hw *ah = sc->sc_ah;
1105 struct ath_common *common = ath9k_hw_common(ah);
1107 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1108 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1112 switch (spectral_mode) {
1113 case SPECTRAL_DISABLED:
1114 sc->spec_config.enabled = 0;
1116 case SPECTRAL_BACKGROUND:
1117 /* send endless samples.
1118 * TODO: is this really useful for "background"?
1120 sc->spec_config.endless = 1;
1121 sc->spec_config.enabled = 1;
1123 case SPECTRAL_CHANSCAN:
1124 case SPECTRAL_MANUAL:
1125 sc->spec_config.endless = 0;
1126 sc->spec_config.enabled = 1;
1132 ath9k_ps_wakeup(sc);
1133 ath9k_hw_ops(ah)->spectral_scan_config(ah, &sc->spec_config);
1134 ath9k_ps_restore(sc);
1136 sc->spectral_mode = spectral_mode;
1141 static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
1143 struct ath_softc *sc = hw->priv;
1144 struct ath_hw *ah = sc->sc_ah;
1145 struct ath_common *common = ath9k_hw_common(ah);
1146 struct ieee80211_conf *conf = &hw->conf;
1147 bool reset_channel = false;
1149 ath9k_ps_wakeup(sc);
1150 mutex_lock(&sc->mutex);
1152 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1153 sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1155 ath_cancel_work(sc);
1156 ath9k_stop_btcoex(sc);
1158 ath9k_start_btcoex(sc);
1160 * The chip needs a reset to properly wake up from
1163 reset_channel = ah->chip_fullsleep;
1168 * We just prepare to enable PS. We have to wait until our AP has
1169 * ACK'd our null data frame to disable RX otherwise we'll ignore
1170 * those ACKs and end up retransmitting the same null data frames.
1171 * IEEE80211_CONF_CHANGE_PS is only passed by mac80211 for STA mode.
1173 if (changed & IEEE80211_CONF_CHANGE_PS) {
1174 unsigned long flags;
1175 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1176 if (conf->flags & IEEE80211_CONF_PS)
1177 ath9k_enable_ps(sc);
1179 ath9k_disable_ps(sc);
1180 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1183 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
1184 if (conf->flags & IEEE80211_CONF_MONITOR) {
1185 ath_dbg(common, CONFIG, "Monitor mode is enabled\n");
1186 sc->sc_ah->is_monitoring = true;
1188 ath_dbg(common, CONFIG, "Monitor mode is disabled\n");
1189 sc->sc_ah->is_monitoring = false;
1193 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {
1194 struct ieee80211_channel *curchan = hw->conf.chandef.chan;
1195 enum nl80211_channel_type channel_type =
1196 cfg80211_get_chandef_type(&conf->chandef);
1197 int pos = curchan->hw_value;
1199 unsigned long flags;
1202 old_pos = ah->curchan - &ah->channels[0];
1204 ath_dbg(common, CONFIG, "Set channel: %d MHz type: %d\n",
1205 curchan->center_freq, channel_type);
1207 /* update survey stats for the old channel before switching */
1208 spin_lock_irqsave(&common->cc_lock, flags);
1209 ath_update_survey_stats(sc);
1210 spin_unlock_irqrestore(&common->cc_lock, flags);
1212 ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
1213 curchan, channel_type);
1216 * If the operating channel changes, change the survey in-use flags
1218 * Reset the survey data for the new channel, unless we're switching
1219 * back to the operating channel from an off-channel operation.
1221 if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) &&
1222 sc->cur_survey != &sc->survey[pos]) {
1225 sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
1227 sc->cur_survey = &sc->survey[pos];
1229 memset(sc->cur_survey, 0, sizeof(struct survey_info));
1230 sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
1231 } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
1232 memset(&sc->survey[pos], 0, sizeof(struct survey_info));
1235 if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
1236 ath_err(common, "Unable to set channel\n");
1237 mutex_unlock(&sc->mutex);
1238 ath9k_ps_restore(sc);
1243 * The most recent snapshot of channel->noisefloor for the old
1244 * channel is only available after the hardware reset. Copy it to
1245 * the survey stats now.
1248 ath_update_survey_nf(sc, old_pos);
1251 * Enable radar pulse detection if on a DFS channel. Spectral
1252 * scanning and radar detection can not be used concurrently.
1254 if (hw->conf.radar_enabled) {
1257 /* set HW specific DFS configuration */
1258 ath9k_hw_set_radar_params(ah);
1259 rxfilter = ath9k_hw_getrxfilter(ah);
1260 rxfilter |= ATH9K_RX_FILTER_PHYRADAR |
1261 ATH9K_RX_FILTER_PHYERR;
1262 ath9k_hw_setrxfilter(ah, rxfilter);
1263 ath_dbg(common, DFS, "DFS enabled at freq %d\n",
1264 curchan->center_freq);
1266 /* perform spectral scan if requested. */
1267 if (test_bit(SC_OP_SCANNING, &sc->sc_flags) &&
1268 sc->spectral_mode == SPECTRAL_CHANSCAN)
1269 ath9k_spectral_scan_trigger(hw);
1273 if (changed & IEEE80211_CONF_CHANGE_POWER) {
1274 ath_dbg(common, CONFIG, "Set power: %d\n", conf->power_level);
1275 sc->config.txpowlimit = 2 * conf->power_level;
1276 ath9k_cmn_update_txpow(ah, sc->curtxpow,
1277 sc->config.txpowlimit, &sc->curtxpow);
1280 mutex_unlock(&sc->mutex);
1281 ath9k_ps_restore(sc);
1286 #define SUPPORTED_FILTERS \
1287 (FIF_PROMISC_IN_BSS | \
1292 FIF_BCN_PRBRESP_PROMISC | \
1296 /* FIXME: sc->sc_full_reset ? */
1297 static void ath9k_configure_filter(struct ieee80211_hw *hw,
1298 unsigned int changed_flags,
1299 unsigned int *total_flags,
1302 struct ath_softc *sc = hw->priv;
1305 changed_flags &= SUPPORTED_FILTERS;
1306 *total_flags &= SUPPORTED_FILTERS;
1308 sc->rx.rxfilter = *total_flags;
1309 ath9k_ps_wakeup(sc);
1310 rfilt = ath_calcrxfilter(sc);
1311 ath9k_hw_setrxfilter(sc->sc_ah, rfilt);
1312 ath9k_ps_restore(sc);
1314 ath_dbg(ath9k_hw_common(sc->sc_ah), CONFIG, "Set HW RX filter: 0x%x\n",
1318 static int ath9k_sta_add(struct ieee80211_hw *hw,
1319 struct ieee80211_vif *vif,
1320 struct ieee80211_sta *sta)
1322 struct ath_softc *sc = hw->priv;
1323 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1324 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1325 struct ieee80211_key_conf ps_key = { };
1328 ath_node_attach(sc, sta, vif);
1330 if (vif->type != NL80211_IFTYPE_AP &&
1331 vif->type != NL80211_IFTYPE_AP_VLAN)
1334 key = ath_key_config(common, vif, sta, &ps_key);
1341 static void ath9k_del_ps_key(struct ath_softc *sc,
1342 struct ieee80211_vif *vif,
1343 struct ieee80211_sta *sta)
1345 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1346 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1347 struct ieee80211_key_conf ps_key = { .hw_key_idx = an->ps_key };
1352 ath_key_delete(common, &ps_key);
1356 static int ath9k_sta_remove(struct ieee80211_hw *hw,
1357 struct ieee80211_vif *vif,
1358 struct ieee80211_sta *sta)
1360 struct ath_softc *sc = hw->priv;
1362 ath9k_del_ps_key(sc, vif, sta);
1363 ath_node_detach(sc, sta);
1368 static void ath9k_sta_notify(struct ieee80211_hw *hw,
1369 struct ieee80211_vif *vif,
1370 enum sta_notify_cmd cmd,
1371 struct ieee80211_sta *sta)
1373 struct ath_softc *sc = hw->priv;
1374 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1376 if (!sta->ht_cap.ht_supported)
1380 case STA_NOTIFY_SLEEP:
1381 an->sleeping = true;
1382 ath_tx_aggr_sleep(sta, sc, an);
1384 case STA_NOTIFY_AWAKE:
1385 an->sleeping = false;
1386 ath_tx_aggr_wakeup(sc, an);
1391 static int ath9k_conf_tx(struct ieee80211_hw *hw,
1392 struct ieee80211_vif *vif, u16 queue,
1393 const struct ieee80211_tx_queue_params *params)
1395 struct ath_softc *sc = hw->priv;
1396 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1397 struct ath_txq *txq;
1398 struct ath9k_tx_queue_info qi;
1401 if (queue >= IEEE80211_NUM_ACS)
1404 txq = sc->tx.txq_map[queue];
1406 ath9k_ps_wakeup(sc);
1407 mutex_lock(&sc->mutex);
1409 memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
1411 qi.tqi_aifs = params->aifs;
1412 qi.tqi_cwmin = params->cw_min;
1413 qi.tqi_cwmax = params->cw_max;
1414 qi.tqi_burstTime = params->txop * 32;
1416 ath_dbg(common, CONFIG,
1417 "Configure tx [queue/halq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
1418 queue, txq->axq_qnum, params->aifs, params->cw_min,
1419 params->cw_max, params->txop);
1421 ath_update_max_aggr_framelen(sc, queue, qi.tqi_burstTime);
1422 ret = ath_txq_update(sc, txq->axq_qnum, &qi);
1424 ath_err(common, "TXQ Update failed\n");
1426 mutex_unlock(&sc->mutex);
1427 ath9k_ps_restore(sc);
1432 static int ath9k_set_key(struct ieee80211_hw *hw,
1433 enum set_key_cmd cmd,
1434 struct ieee80211_vif *vif,
1435 struct ieee80211_sta *sta,
1436 struct ieee80211_key_conf *key)
1438 struct ath_softc *sc = hw->priv;
1439 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1442 if (ath9k_modparam_nohwcrypt)
1445 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1446 vif->type == NL80211_IFTYPE_MESH_POINT) &&
1447 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
1448 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
1449 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
1451 * For now, disable hw crypto for the RSN IBSS group keys. This
1452 * could be optimized in the future to use a modified key cache
1453 * design to support per-STA RX GTK, but until that gets
1454 * implemented, use of software crypto for group addressed
1455 * frames is a acceptable to allow RSN IBSS to be used.
1460 mutex_lock(&sc->mutex);
1461 ath9k_ps_wakeup(sc);
1462 ath_dbg(common, CONFIG, "Set HW Key\n");
1467 ath9k_del_ps_key(sc, vif, sta);
1469 ret = ath_key_config(common, vif, sta, key);
1471 key->hw_key_idx = ret;
1472 /* push IV and Michael MIC generation to stack */
1473 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1474 if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
1475 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1476 if (sc->sc_ah->sw_mgmt_crypto &&
1477 key->cipher == WLAN_CIPHER_SUITE_CCMP)
1478 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
1483 ath_key_delete(common, key);
1489 ath9k_ps_restore(sc);
1490 mutex_unlock(&sc->mutex);
1495 static void ath9k_set_assoc_state(struct ath_softc *sc,
1496 struct ieee80211_vif *vif)
1498 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1499 struct ath_vif *avp = (void *)vif->drv_priv;
1500 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1501 unsigned long flags;
1503 set_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1504 avp->primary_sta_vif = true;
1507 * Set the AID, BSSID and do beacon-sync only when
1508 * the HW opmode is STATION.
1510 * But the primary bit is set above in any case.
1512 if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
1515 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1516 common->curaid = bss_conf->aid;
1517 ath9k_hw_write_associd(sc->sc_ah);
1519 sc->last_rssi = ATH_RSSI_DUMMY_MARKER;
1520 sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
1522 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1523 sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
1524 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1526 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1527 ath9k_mci_update_wlan_channels(sc, false);
1529 ath_dbg(common, CONFIG,
1530 "Primary Station interface: %pM, BSSID: %pM\n",
1531 vif->addr, common->curbssid);
1534 static void ath9k_bss_assoc_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
1536 struct ath_softc *sc = data;
1537 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1539 if (test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags))
1542 if (bss_conf->assoc)
1543 ath9k_set_assoc_state(sc, vif);
1546 static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
1547 struct ieee80211_vif *vif,
1548 struct ieee80211_bss_conf *bss_conf,
1552 (BSS_CHANGED_ASSOC | \
1553 BSS_CHANGED_IBSS | \
1554 BSS_CHANGED_BEACON_ENABLED)
1556 struct ath_softc *sc = hw->priv;
1557 struct ath_hw *ah = sc->sc_ah;
1558 struct ath_common *common = ath9k_hw_common(ah);
1559 struct ath_vif *avp = (void *)vif->drv_priv;
1562 ath9k_ps_wakeup(sc);
1563 mutex_lock(&sc->mutex);
1565 if (changed & BSS_CHANGED_ASSOC) {
1566 ath_dbg(common, CONFIG, "BSSID %pM Changed ASSOC %d\n",
1567 bss_conf->bssid, bss_conf->assoc);
1569 if (avp->primary_sta_vif && !bss_conf->assoc) {
1570 clear_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1571 avp->primary_sta_vif = false;
1573 if (ah->opmode == NL80211_IFTYPE_STATION)
1574 clear_bit(SC_OP_BEACONS, &sc->sc_flags);
1577 ieee80211_iterate_active_interfaces_atomic(
1578 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1579 ath9k_bss_assoc_iter, sc);
1581 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags) &&
1582 ah->opmode == NL80211_IFTYPE_STATION) {
1583 memset(common->curbssid, 0, ETH_ALEN);
1585 ath9k_hw_write_associd(sc->sc_ah);
1586 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1587 ath9k_mci_update_wlan_channels(sc, true);
1591 if (changed & BSS_CHANGED_IBSS) {
1592 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1593 common->curaid = bss_conf->aid;
1594 ath9k_hw_write_associd(sc->sc_ah);
1597 if ((changed & BSS_CHANGED_BEACON_ENABLED) ||
1598 (changed & BSS_CHANGED_BEACON_INT)) {
1599 if (ah->opmode == NL80211_IFTYPE_AP &&
1600 bss_conf->enable_beacon)
1601 ath9k_set_tsfadjust(sc, vif);
1602 if (ath9k_allow_beacon_config(sc, vif))
1603 ath9k_beacon_config(sc, vif, changed);
1606 if (changed & BSS_CHANGED_ERP_SLOT) {
1607 if (bss_conf->use_short_slot)
1611 if (vif->type == NL80211_IFTYPE_AP) {
1613 * Defer update, so that connected stations can adjust
1614 * their settings at the same time.
1615 * See beacon.c for more details
1617 sc->beacon.slottime = slottime;
1618 sc->beacon.updateslot = UPDATE;
1620 ah->slottime = slottime;
1621 ath9k_hw_init_global_settings(ah);
1625 if (changed & CHECK_ANI)
1628 mutex_unlock(&sc->mutex);
1629 ath9k_ps_restore(sc);
1634 static u64 ath9k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1636 struct ath_softc *sc = hw->priv;
1639 mutex_lock(&sc->mutex);
1640 ath9k_ps_wakeup(sc);
1641 tsf = ath9k_hw_gettsf64(sc->sc_ah);
1642 ath9k_ps_restore(sc);
1643 mutex_unlock(&sc->mutex);
1648 static void ath9k_set_tsf(struct ieee80211_hw *hw,
1649 struct ieee80211_vif *vif,
1652 struct ath_softc *sc = hw->priv;
1654 mutex_lock(&sc->mutex);
1655 ath9k_ps_wakeup(sc);
1656 ath9k_hw_settsf64(sc->sc_ah, tsf);
1657 ath9k_ps_restore(sc);
1658 mutex_unlock(&sc->mutex);
1661 static void ath9k_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1663 struct ath_softc *sc = hw->priv;
1665 mutex_lock(&sc->mutex);
1667 ath9k_ps_wakeup(sc);
1668 ath9k_hw_reset_tsf(sc->sc_ah);
1669 ath9k_ps_restore(sc);
1671 mutex_unlock(&sc->mutex);
1674 static int ath9k_ampdu_action(struct ieee80211_hw *hw,
1675 struct ieee80211_vif *vif,
1676 enum ieee80211_ampdu_mlme_action action,
1677 struct ieee80211_sta *sta,
1678 u16 tid, u16 *ssn, u8 buf_size)
1680 struct ath_softc *sc = hw->priv;
1684 mutex_lock(&sc->mutex);
1687 case IEEE80211_AMPDU_RX_START:
1689 case IEEE80211_AMPDU_RX_STOP:
1691 case IEEE80211_AMPDU_TX_START:
1692 ath9k_ps_wakeup(sc);
1693 ret = ath_tx_aggr_start(sc, sta, tid, ssn);
1695 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1696 ath9k_ps_restore(sc);
1698 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1699 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1701 case IEEE80211_AMPDU_TX_STOP_CONT:
1702 ath9k_ps_wakeup(sc);
1703 ath_tx_aggr_stop(sc, sta, tid);
1705 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1706 ath9k_ps_restore(sc);
1708 case IEEE80211_AMPDU_TX_OPERATIONAL:
1709 ath9k_ps_wakeup(sc);
1710 ath_tx_aggr_resume(sc, sta, tid);
1711 ath9k_ps_restore(sc);
1714 ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n");
1717 mutex_unlock(&sc->mutex);
1722 static int ath9k_get_survey(struct ieee80211_hw *hw, int idx,
1723 struct survey_info *survey)
1725 struct ath_softc *sc = hw->priv;
1726 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1727 struct ieee80211_supported_band *sband;
1728 struct ieee80211_channel *chan;
1729 unsigned long flags;
1732 spin_lock_irqsave(&common->cc_lock, flags);
1734 ath_update_survey_stats(sc);
1736 sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
1737 if (sband && idx >= sband->n_channels) {
1738 idx -= sband->n_channels;
1743 sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
1745 if (!sband || idx >= sband->n_channels) {
1746 spin_unlock_irqrestore(&common->cc_lock, flags);
1750 chan = &sband->channels[idx];
1751 pos = chan->hw_value;
1752 memcpy(survey, &sc->survey[pos], sizeof(*survey));
1753 survey->channel = chan;
1754 spin_unlock_irqrestore(&common->cc_lock, flags);
1759 static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
1761 struct ath_softc *sc = hw->priv;
1762 struct ath_hw *ah = sc->sc_ah;
1764 mutex_lock(&sc->mutex);
1765 ah->coverage_class = coverage_class;
1767 ath9k_ps_wakeup(sc);
1768 ath9k_hw_init_global_settings(ah);
1769 ath9k_ps_restore(sc);
1771 mutex_unlock(&sc->mutex);
1774 static void ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1776 struct ath_softc *sc = hw->priv;
1777 struct ath_hw *ah = sc->sc_ah;
1778 struct ath_common *common = ath9k_hw_common(ah);
1779 int timeout = 200; /* ms */
1783 mutex_lock(&sc->mutex);
1784 cancel_delayed_work_sync(&sc->tx_complete_work);
1786 if (ah->ah_flags & AH_UNPLUGGED) {
1787 ath_dbg(common, ANY, "Device has been unplugged!\n");
1788 mutex_unlock(&sc->mutex);
1792 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
1793 ath_dbg(common, ANY, "Device not present\n");
1794 mutex_unlock(&sc->mutex);
1798 for (j = 0; j < timeout; j++) {
1802 usleep_range(1000, 2000);
1804 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1805 if (!ATH_TXQ_SETUP(sc, i))
1808 npend = ath9k_has_pending_frames(sc, &sc->tx.txq[i]);
1819 ath9k_ps_wakeup(sc);
1820 spin_lock_bh(&sc->sc_pcu_lock);
1821 drain_txq = ath_drain_all_txq(sc);
1822 spin_unlock_bh(&sc->sc_pcu_lock);
1827 ath9k_ps_restore(sc);
1828 ieee80211_wake_queues(hw);
1831 ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
1832 mutex_unlock(&sc->mutex);
1835 static bool ath9k_tx_frames_pending(struct ieee80211_hw *hw)
1837 struct ath_softc *sc = hw->priv;
1840 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1841 if (!ATH_TXQ_SETUP(sc, i))
1844 if (ath9k_has_pending_frames(sc, &sc->tx.txq[i]))
1850 static int ath9k_tx_last_beacon(struct ieee80211_hw *hw)
1852 struct ath_softc *sc = hw->priv;
1853 struct ath_hw *ah = sc->sc_ah;
1854 struct ieee80211_vif *vif;
1855 struct ath_vif *avp;
1857 struct ath_tx_status ts;
1858 bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
1861 vif = sc->beacon.bslot[0];
1865 if (!vif->bss_conf.enable_beacon)
1868 avp = (void *)vif->drv_priv;
1870 if (!sc->beacon.tx_processed && !edma) {
1871 tasklet_disable(&sc->bcon_tasklet);
1874 if (!bf || !bf->bf_mpdu)
1877 status = ath9k_hw_txprocdesc(ah, bf->bf_desc, &ts);
1878 if (status == -EINPROGRESS)
1881 sc->beacon.tx_processed = true;
1882 sc->beacon.tx_last = !(ts.ts_status & ATH9K_TXERR_MASK);
1885 tasklet_enable(&sc->bcon_tasklet);
1888 return sc->beacon.tx_last;
1891 static int ath9k_get_stats(struct ieee80211_hw *hw,
1892 struct ieee80211_low_level_stats *stats)
1894 struct ath_softc *sc = hw->priv;
1895 struct ath_hw *ah = sc->sc_ah;
1896 struct ath9k_mib_stats *mib_stats = &ah->ah_mibStats;
1898 stats->dot11ACKFailureCount = mib_stats->ackrcv_bad;
1899 stats->dot11RTSFailureCount = mib_stats->rts_bad;
1900 stats->dot11FCSErrorCount = mib_stats->fcs_bad;
1901 stats->dot11RTSSuccessCount = mib_stats->rts_good;
1905 static u32 fill_chainmask(u32 cap, u32 new)
1910 for (i = 0; cap && new; i++, cap >>= 1) {
1911 if (!(cap & BIT(0)))
1923 static bool validate_antenna_mask(struct ath_hw *ah, u32 val)
1925 if (AR_SREV_9300_20_OR_LATER(ah))
1928 switch (val & 0x7) {
1934 return (ah->caps.rx_chainmask == 1);
1940 static int ath9k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
1942 struct ath_softc *sc = hw->priv;
1943 struct ath_hw *ah = sc->sc_ah;
1945 if (ah->caps.rx_chainmask != 1)
1948 if (!validate_antenna_mask(ah, rx_ant) || !tx_ant)
1951 sc->ant_rx = rx_ant;
1952 sc->ant_tx = tx_ant;
1954 if (ah->caps.rx_chainmask == 1)
1957 /* AR9100 runs into calibration issues if not all rx chains are enabled */
1958 if (AR_SREV_9100(ah))
1959 ah->rxchainmask = 0x7;
1961 ah->rxchainmask = fill_chainmask(ah->caps.rx_chainmask, rx_ant);
1963 ah->txchainmask = fill_chainmask(ah->caps.tx_chainmask, tx_ant);
1964 ath9k_reload_chainmask_settings(sc);
1969 static int ath9k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
1971 struct ath_softc *sc = hw->priv;
1973 *tx_ant = sc->ant_tx;
1974 *rx_ant = sc->ant_rx;
1978 #ifdef CONFIG_PM_SLEEP
1980 static void ath9k_wow_map_triggers(struct ath_softc *sc,
1981 struct cfg80211_wowlan *wowlan,
1984 if (wowlan->disconnect)
1985 *wow_triggers |= AH_WOW_LINK_CHANGE |
1987 if (wowlan->magic_pkt)
1988 *wow_triggers |= AH_WOW_MAGIC_PATTERN_EN;
1990 if (wowlan->n_patterns)
1991 *wow_triggers |= AH_WOW_USER_PATTERN_EN;
1993 sc->wow_enabled = *wow_triggers;
1997 static void ath9k_wow_add_disassoc_deauth_pattern(struct ath_softc *sc)
1999 struct ath_hw *ah = sc->sc_ah;
2000 struct ath_common *common = ath9k_hw_common(ah);
2001 int pattern_count = 0;
2003 u8 dis_deauth_pattern[MAX_PATTERN_SIZE];
2004 u8 dis_deauth_mask[MAX_PATTERN_SIZE];
2006 memset(dis_deauth_pattern, 0, MAX_PATTERN_SIZE);
2007 memset(dis_deauth_mask, 0, MAX_PATTERN_SIZE);
2010 * Create Dissassociate / Deauthenticate packet filter
2012 * 2 bytes 2 byte 6 bytes 6 bytes 6 bytes
2013 * +--------------+----------+---------+--------+--------+----
2014 * + Frame Control+ Duration + DA + SA + BSSID +
2015 * +--------------+----------+---------+--------+--------+----
2017 * The above is the management frame format for disassociate/
2018 * deauthenticate pattern, from this we need to match the first byte
2019 * of 'Frame Control' and DA, SA, and BSSID fields
2020 * (skipping 2nd byte of FC and Duration feild.
2022 * Disassociate pattern
2023 * --------------------
2024 * Frame control = 00 00 1010
2025 * DA, SA, BSSID = x:x:x:x:x:x
2026 * Pattern will be A0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2027 * | x:x:x:x:x:x -- 22 bytes
2029 * Deauthenticate pattern
2030 * ----------------------
2031 * Frame control = 00 00 1100
2032 * DA, SA, BSSID = x:x:x:x:x:x
2033 * Pattern will be C0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2034 * | x:x:x:x:x:x -- 22 bytes
2037 /* Create Disassociate Pattern first */
2041 /* Fill out the mask with all FF's */
2043 for (i = 0; i < MAX_PATTERN_MASK_SIZE; i++)
2044 dis_deauth_mask[i] = 0xff;
2046 /* copy the first byte of frame control field */
2047 dis_deauth_pattern[byte_cnt] = 0xa0;
2050 /* skip 2nd byte of frame control and Duration field */
2054 * need not match the destination mac address, it can be a broadcast
2055 * mac address or an unicast to this station
2059 /* copy the source mac address */
2060 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2064 /* copy the bssid, its same as the source mac address */
2066 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2068 /* Create Disassociate pattern mask */
2070 dis_deauth_mask[0] = 0xfe;
2071 dis_deauth_mask[1] = 0x03;
2072 dis_deauth_mask[2] = 0xc0;
2074 ath_dbg(common, WOW, "Adding disassoc/deauth patterns for WoW\n");
2076 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2077 pattern_count, byte_cnt);
2081 * for de-authenticate pattern, only the first byte of the frame
2082 * control field gets changed from 0xA0 to 0xC0
2084 dis_deauth_pattern[0] = 0xC0;
2086 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2087 pattern_count, byte_cnt);
2091 static void ath9k_wow_add_pattern(struct ath_softc *sc,
2092 struct cfg80211_wowlan *wowlan)
2094 struct ath_hw *ah = sc->sc_ah;
2095 struct ath9k_wow_pattern *wow_pattern = NULL;
2096 struct cfg80211_wowlan_trig_pkt_pattern *patterns = wowlan->patterns;
2100 if (!wowlan->n_patterns)
2104 * Add the new user configured patterns
2106 for (i = 0; i < wowlan->n_patterns; i++) {
2108 wow_pattern = kzalloc(sizeof(*wow_pattern), GFP_KERNEL);
2114 * TODO: convert the generic user space pattern to
2115 * appropriate chip specific/802.11 pattern.
2118 mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
2119 memset(wow_pattern->pattern_bytes, 0, MAX_PATTERN_SIZE);
2120 memset(wow_pattern->mask_bytes, 0, MAX_PATTERN_SIZE);
2121 memcpy(wow_pattern->pattern_bytes, patterns[i].pattern,
2122 patterns[i].pattern_len);
2123 memcpy(wow_pattern->mask_bytes, patterns[i].mask, mask_len);
2124 wow_pattern->pattern_len = patterns[i].pattern_len;
2127 * just need to take care of deauth and disssoc pattern,
2128 * make sure we don't overwrite them.
2131 ath9k_hw_wow_apply_pattern(ah, wow_pattern->pattern_bytes,
2132 wow_pattern->mask_bytes,
2134 wow_pattern->pattern_len);
2141 static int ath9k_suspend(struct ieee80211_hw *hw,
2142 struct cfg80211_wowlan *wowlan)
2144 struct ath_softc *sc = hw->priv;
2145 struct ath_hw *ah = sc->sc_ah;
2146 struct ath_common *common = ath9k_hw_common(ah);
2147 u32 wow_triggers_enabled = 0;
2150 mutex_lock(&sc->mutex);
2152 ath_cancel_work(sc);
2154 del_timer_sync(&sc->rx_poll_timer);
2156 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
2157 ath_dbg(common, ANY, "Device not present\n");
2162 if (WARN_ON(!wowlan)) {
2163 ath_dbg(common, WOW, "None of the WoW triggers enabled\n");
2168 if (!device_can_wakeup(sc->dev)) {
2169 ath_dbg(common, WOW, "device_can_wakeup failed, WoW is not enabled\n");
2175 * none of the sta vifs are associated
2176 * and we are not currently handling multivif
2177 * cases, for instance we have to seperately
2178 * configure 'keep alive frame' for each
2182 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
2183 ath_dbg(common, WOW, "None of the STA vifs are associated\n");
2188 if (sc->nvifs > 1) {
2189 ath_dbg(common, WOW, "WoW for multivif is not yet supported\n");
2194 ath9k_wow_map_triggers(sc, wowlan, &wow_triggers_enabled);
2196 ath_dbg(common, WOW, "WoW triggers enabled 0x%x\n",
2197 wow_triggers_enabled);
2199 ath9k_ps_wakeup(sc);
2201 ath9k_stop_btcoex(sc);
2204 * Enable wake up on recieving disassoc/deauth
2207 ath9k_wow_add_disassoc_deauth_pattern(sc);
2209 if (wow_triggers_enabled & AH_WOW_USER_PATTERN_EN)
2210 ath9k_wow_add_pattern(sc, wowlan);
2212 spin_lock_bh(&sc->sc_pcu_lock);
2214 * To avoid false wake, we enable beacon miss interrupt only
2215 * when we go to sleep. We save the current interrupt mask
2216 * so we can restore it after the system wakes up
2218 sc->wow_intr_before_sleep = ah->imask;
2219 ah->imask &= ~ATH9K_INT_GLOBAL;
2220 ath9k_hw_disable_interrupts(ah);
2221 ah->imask = ATH9K_INT_BMISS | ATH9K_INT_GLOBAL;
2222 ath9k_hw_set_interrupts(ah);
2223 ath9k_hw_enable_interrupts(ah);
2225 spin_unlock_bh(&sc->sc_pcu_lock);
2228 * we can now sync irq and kill any running tasklets, since we already
2229 * disabled interrupts and not holding a spin lock
2231 synchronize_irq(sc->irq);
2232 tasklet_kill(&sc->intr_tq);
2234 ath9k_hw_wow_enable(ah, wow_triggers_enabled);
2236 ath9k_ps_restore(sc);
2237 ath_dbg(common, ANY, "WoW enabled in ath9k\n");
2238 atomic_inc(&sc->wow_sleep_proc_intr);
2241 mutex_unlock(&sc->mutex);
2245 static int ath9k_resume(struct ieee80211_hw *hw)
2247 struct ath_softc *sc = hw->priv;
2248 struct ath_hw *ah = sc->sc_ah;
2249 struct ath_common *common = ath9k_hw_common(ah);
2252 mutex_lock(&sc->mutex);
2254 ath9k_ps_wakeup(sc);
2256 spin_lock_bh(&sc->sc_pcu_lock);
2258 ath9k_hw_disable_interrupts(ah);
2259 ah->imask = sc->wow_intr_before_sleep;
2260 ath9k_hw_set_interrupts(ah);
2261 ath9k_hw_enable_interrupts(ah);
2263 spin_unlock_bh(&sc->sc_pcu_lock);
2265 wow_status = ath9k_hw_wow_wakeup(ah);
2267 if (atomic_read(&sc->wow_got_bmiss_intr) == 0) {
2269 * some devices may not pick beacon miss
2270 * as the reason they woke up so we add
2271 * that here for that shortcoming.
2273 wow_status |= AH_WOW_BEACON_MISS;
2274 atomic_dec(&sc->wow_got_bmiss_intr);
2275 ath_dbg(common, ANY, "Beacon miss interrupt picked up during WoW sleep\n");
2278 atomic_dec(&sc->wow_sleep_proc_intr);
2281 ath_dbg(common, ANY, "Waking up due to WoW triggers %s with WoW status = %x\n",
2282 ath9k_hw_wow_event_to_string(wow_status), wow_status);
2285 ath_restart_work(sc);
2286 ath9k_start_btcoex(sc);
2288 ath9k_ps_restore(sc);
2289 mutex_unlock(&sc->mutex);
2294 static void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2296 struct ath_softc *sc = hw->priv;
2298 mutex_lock(&sc->mutex);
2299 device_init_wakeup(sc->dev, 1);
2300 device_set_wakeup_enable(sc->dev, enabled);
2301 mutex_unlock(&sc->mutex);
2305 static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
2307 struct ath_softc *sc = hw->priv;
2308 set_bit(SC_OP_SCANNING, &sc->sc_flags);
2311 static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
2313 struct ath_softc *sc = hw->priv;
2314 clear_bit(SC_OP_SCANNING, &sc->sc_flags);
2317 struct ieee80211_ops ath9k_ops = {
2319 .start = ath9k_start,
2321 .add_interface = ath9k_add_interface,
2322 .change_interface = ath9k_change_interface,
2323 .remove_interface = ath9k_remove_interface,
2324 .config = ath9k_config,
2325 .configure_filter = ath9k_configure_filter,
2326 .sta_add = ath9k_sta_add,
2327 .sta_remove = ath9k_sta_remove,
2328 .sta_notify = ath9k_sta_notify,
2329 .conf_tx = ath9k_conf_tx,
2330 .bss_info_changed = ath9k_bss_info_changed,
2331 .set_key = ath9k_set_key,
2332 .get_tsf = ath9k_get_tsf,
2333 .set_tsf = ath9k_set_tsf,
2334 .reset_tsf = ath9k_reset_tsf,
2335 .ampdu_action = ath9k_ampdu_action,
2336 .get_survey = ath9k_get_survey,
2337 .rfkill_poll = ath9k_rfkill_poll_state,
2338 .set_coverage_class = ath9k_set_coverage_class,
2339 .flush = ath9k_flush,
2340 .tx_frames_pending = ath9k_tx_frames_pending,
2341 .tx_last_beacon = ath9k_tx_last_beacon,
2342 .release_buffered_frames = ath9k_release_buffered_frames,
2343 .get_stats = ath9k_get_stats,
2344 .set_antenna = ath9k_set_antenna,
2345 .get_antenna = ath9k_get_antenna,
2347 #ifdef CONFIG_PM_SLEEP
2348 .suspend = ath9k_suspend,
2349 .resume = ath9k_resume,
2350 .set_wakeup = ath9k_set_wakeup,
2353 #ifdef CONFIG_ATH9K_DEBUGFS
2354 .get_et_sset_count = ath9k_get_et_sset_count,
2355 .get_et_stats = ath9k_get_et_stats,
2356 .get_et_strings = ath9k_get_et_strings,
2359 #if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_DEBUGFS)
2360 .sta_add_debugfs = ath9k_sta_add_debugfs,
2361 .sta_remove_debugfs = ath9k_sta_remove_debugfs,
2363 .sw_scan_start = ath9k_sw_scan_start,
2364 .sw_scan_complete = ath9k_sw_scan_complete,