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_debug_samp_bb_mac(sc);
197 ath9k_hw_disable_interrupts(ah);
199 if (!ath_drain_all_txq(sc))
202 if (!ath_stoprecv(sc))
208 static bool ath_complete_reset(struct ath_softc *sc, bool start)
210 struct ath_hw *ah = sc->sc_ah;
211 struct ath_common *common = ath9k_hw_common(ah);
214 if (ath_startrecv(sc) != 0) {
215 ath_err(common, "Unable to restart recv logic\n");
219 ath9k_cmn_update_txpow(ah, sc->curtxpow,
220 sc->config.txpowlimit, &sc->curtxpow);
222 clear_bit(SC_OP_HW_RESET, &sc->sc_flags);
223 ath9k_hw_set_interrupts(ah);
224 ath9k_hw_enable_interrupts(ah);
226 if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) && start) {
227 if (!test_bit(SC_OP_BEACONS, &sc->sc_flags))
230 ath9k_set_beacon(sc);
232 if (ah->opmode == NL80211_IFTYPE_STATION &&
233 test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
234 spin_lock_irqsave(&sc->sc_pm_lock, flags);
235 sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
236 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
239 ath_restart_work(sc);
242 if ((ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) && sc->ant_rx != 3)
243 ath_ant_comb_update(sc);
245 ieee80211_wake_queues(sc->hw);
250 static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan)
252 struct ath_hw *ah = sc->sc_ah;
253 struct ath_common *common = ath9k_hw_common(ah);
254 struct ath9k_hw_cal_data *caldata = NULL;
258 __ath_cancel_work(sc);
260 tasklet_disable(&sc->intr_tq);
261 spin_lock_bh(&sc->sc_pcu_lock);
263 if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) {
265 caldata = &sc->caldata;
273 if (!ath_prepare_reset(sc))
276 ath_dbg(common, CONFIG, "Reset to %u MHz, HT40: %d fastcc: %d\n",
277 hchan->channel, IS_CHAN_HT40(hchan), fastcc);
279 r = ath9k_hw_reset(ah, hchan, caldata, fastcc);
282 "Unable to reset channel, reset status %d\n", r);
284 ath9k_hw_enable_interrupts(ah);
285 ath9k_queue_reset(sc, RESET_TYPE_BB_HANG);
290 if (ath9k_hw_mci_is_enabled(sc->sc_ah) &&
291 (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
292 ath9k_mci_set_txpower(sc, true, false);
294 if (!ath_complete_reset(sc, true))
298 spin_unlock_bh(&sc->sc_pcu_lock);
299 tasklet_enable(&sc->intr_tq);
306 * Set/change channels. If the channel is really being changed, it's done
307 * by reseting the chip. To accomplish this we must first cleanup any pending
308 * DMA, then restart stuff.
310 static int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
311 struct ath9k_channel *hchan)
315 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
318 r = ath_reset_internal(sc, hchan);
323 static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
324 struct ieee80211_vif *vif)
327 an = (struct ath_node *)sta->drv_priv;
333 ath_tx_node_init(sc, an);
335 if (sta->ht_cap.ht_supported) {
336 an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
337 sta->ht_cap.ampdu_factor);
338 an->mpdudensity = ath9k_parse_mpdudensity(sta->ht_cap.ampdu_density);
342 static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
344 struct ath_node *an = (struct ath_node *)sta->drv_priv;
345 ath_tx_node_cleanup(sc, an);
348 void ath9k_tasklet(unsigned long data)
350 struct ath_softc *sc = (struct ath_softc *)data;
351 struct ath_hw *ah = sc->sc_ah;
352 struct ath_common *common = ath9k_hw_common(ah);
353 enum ath_reset_type type;
355 u32 status = sc->intrstatus;
359 spin_lock(&sc->sc_pcu_lock);
361 if ((status & ATH9K_INT_FATAL) ||
362 (status & ATH9K_INT_BB_WATCHDOG)) {
364 if (status & ATH9K_INT_FATAL)
365 type = RESET_TYPE_FATAL_INT;
367 type = RESET_TYPE_BB_WATCHDOG;
369 ath9k_queue_reset(sc, type);
373 spin_lock_irqsave(&sc->sc_pm_lock, flags);
374 if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) {
376 * TSF sync does not look correct; remain awake to sync with
379 ath_dbg(common, PS, "TSFOOR - Sync with next Beacon\n");
380 sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC;
382 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
384 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
385 rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL |
388 rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
390 if (status & rxmask) {
391 /* Check for high priority Rx first */
392 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
393 (status & ATH9K_INT_RXHP))
394 ath_rx_tasklet(sc, 0, true);
396 ath_rx_tasklet(sc, 0, false);
399 if (status & ATH9K_INT_TX) {
400 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
401 ath_tx_edma_tasklet(sc);
406 ath9k_btcoex_handle_interrupt(sc, status);
409 /* re-enable hardware interrupt */
410 ath9k_hw_enable_interrupts(ah);
412 spin_unlock(&sc->sc_pcu_lock);
413 ath9k_ps_restore(sc);
416 irqreturn_t ath_isr(int irq, void *dev)
418 #define SCHED_INTR ( \
420 ATH9K_INT_BB_WATCHDOG | \
430 ATH9K_INT_GENTIMER | \
433 struct ath_softc *sc = dev;
434 struct ath_hw *ah = sc->sc_ah;
435 struct ath_common *common = ath9k_hw_common(ah);
436 enum ath9k_int status;
440 * The hardware is not ready/present, don't
441 * touch anything. Note this can happen early
442 * on if the IRQ is shared.
444 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
447 /* shared irq, not for us */
449 if (!ath9k_hw_intrpend(ah))
452 if (test_bit(SC_OP_HW_RESET, &sc->sc_flags)) {
453 ath9k_hw_kill_interrupts(ah);
458 * Figure out the reason(s) for the interrupt. Note
459 * that the hal returns a pseudo-ISR that may include
460 * bits we haven't explicitly enabled so we mask the
461 * value to insure we only process bits we requested.
463 ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */
464 status &= ah->imask; /* discard unasked-for bits */
467 * If there are no status bits set, then this interrupt was not
468 * for me (should have been caught above).
473 /* Cache the status */
474 sc->intrstatus = status;
476 if (status & SCHED_INTR)
480 * If a FATAL or RXORN interrupt is received, we have to reset the
483 if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) &&
484 !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)))
487 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
488 (status & ATH9K_INT_BB_WATCHDOG)) {
490 spin_lock(&common->cc_lock);
491 ath_hw_cycle_counters_update(common);
492 ar9003_hw_bb_watchdog_dbg_info(ah);
493 spin_unlock(&common->cc_lock);
497 #ifdef CONFIG_PM_SLEEP
498 if (status & ATH9K_INT_BMISS) {
499 if (atomic_read(&sc->wow_sleep_proc_intr) == 0) {
500 ath_dbg(common, ANY, "during WoW we got a BMISS\n");
501 atomic_inc(&sc->wow_got_bmiss_intr);
502 atomic_dec(&sc->wow_sleep_proc_intr);
506 if (status & ATH9K_INT_SWBA)
507 tasklet_schedule(&sc->bcon_tasklet);
509 if (status & ATH9K_INT_TXURN)
510 ath9k_hw_updatetxtriglevel(ah, true);
512 if (status & ATH9K_INT_RXEOL) {
513 ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
514 ath9k_hw_set_interrupts(ah);
517 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
518 if (status & ATH9K_INT_TIM_TIMER) {
519 if (ATH_DBG_WARN_ON_ONCE(sc->ps_idle))
521 /* Clear RxAbort bit so that we can
523 ath9k_setpower(sc, ATH9K_PM_AWAKE);
524 spin_lock(&sc->sc_pm_lock);
525 ath9k_hw_setrxabort(sc->sc_ah, 0);
526 sc->ps_flags |= PS_WAIT_FOR_BEACON;
527 spin_unlock(&sc->sc_pm_lock);
532 ath_debug_stat_interrupt(sc, status);
535 /* turn off every interrupt */
536 ath9k_hw_disable_interrupts(ah);
537 tasklet_schedule(&sc->intr_tq);
545 static int ath_reset(struct ath_softc *sc)
551 r = ath_reset_internal(sc, NULL);
553 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
554 if (!ATH_TXQ_SETUP(sc, i))
557 spin_lock_bh(&sc->tx.txq[i].axq_lock);
558 ath_txq_schedule(sc, &sc->tx.txq[i]);
559 spin_unlock_bh(&sc->tx.txq[i].axq_lock);
562 ath9k_ps_restore(sc);
567 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type)
569 #ifdef CONFIG_ATH9K_DEBUGFS
570 RESET_STAT_INC(sc, type);
572 set_bit(SC_OP_HW_RESET, &sc->sc_flags);
573 ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
576 void ath_reset_work(struct work_struct *work)
578 struct ath_softc *sc = container_of(work, struct ath_softc, hw_reset_work);
583 /**********************/
584 /* mac80211 callbacks */
585 /**********************/
587 static int ath9k_start(struct ieee80211_hw *hw)
589 struct ath_softc *sc = hw->priv;
590 struct ath_hw *ah = sc->sc_ah;
591 struct ath_common *common = ath9k_hw_common(ah);
592 struct ieee80211_channel *curchan = hw->conf.channel;
593 struct ath9k_channel *init_channel;
596 ath_dbg(common, CONFIG,
597 "Starting driver with initial channel: %d MHz\n",
598 curchan->center_freq);
601 mutex_lock(&sc->mutex);
603 init_channel = ath9k_cmn_get_curchannel(hw, ah);
605 /* Reset SERDES registers */
606 ath9k_hw_configpcipowersave(ah, false);
609 * The basic interface to setting the hardware in a good
610 * state is ``reset''. On return the hardware is known to
611 * be powered up and with interrupts disabled. This must
612 * be followed by initialization of the appropriate bits
613 * and then setup of the interrupt mask.
615 spin_lock_bh(&sc->sc_pcu_lock);
617 atomic_set(&ah->intr_ref_cnt, -1);
619 r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
622 "Unable to reset hardware; reset status %d (freq %u MHz)\n",
623 r, curchan->center_freq);
624 ah->reset_power_on = false;
627 /* Setup our intr mask. */
628 ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL |
629 ATH9K_INT_RXORN | ATH9K_INT_FATAL |
632 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
633 ah->imask |= ATH9K_INT_RXHP |
635 ATH9K_INT_BB_WATCHDOG;
637 ah->imask |= ATH9K_INT_RX;
639 ah->imask |= ATH9K_INT_GTT;
641 if (ah->caps.hw_caps & ATH9K_HW_CAP_HT)
642 ah->imask |= ATH9K_INT_CST;
646 clear_bit(SC_OP_INVALID, &sc->sc_flags);
647 sc->sc_ah->is_monitoring = false;
649 if (!ath_complete_reset(sc, false))
650 ah->reset_power_on = false;
652 if (ah->led_pin >= 0) {
653 ath9k_hw_cfg_output(ah, ah->led_pin,
654 AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
655 ath9k_hw_set_gpio(ah, ah->led_pin, 0);
659 * Reset key cache to sane defaults (all entries cleared) instead of
660 * semi-random values after suspend/resume.
662 ath9k_cmn_init_crypto(sc->sc_ah);
664 spin_unlock_bh(&sc->sc_pcu_lock);
666 mutex_unlock(&sc->mutex);
668 ath9k_ps_restore(sc);
673 static void ath9k_tx(struct ieee80211_hw *hw,
674 struct ieee80211_tx_control *control,
677 struct ath_softc *sc = hw->priv;
678 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
679 struct ath_tx_control txctl;
680 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
683 if (sc->ps_enabled) {
685 * mac80211 does not set PM field for normal data frames, so we
686 * need to update that based on the current PS mode.
688 if (ieee80211_is_data(hdr->frame_control) &&
689 !ieee80211_is_nullfunc(hdr->frame_control) &&
690 !ieee80211_has_pm(hdr->frame_control)) {
692 "Add PM=1 for a TX frame while in PS mode\n");
693 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
697 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP)) {
699 * We are using PS-Poll and mac80211 can request TX while in
700 * power save mode. Need to wake up hardware for the TX to be
701 * completed and if needed, also for RX of buffered frames.
704 spin_lock_irqsave(&sc->sc_pm_lock, flags);
705 if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
706 ath9k_hw_setrxabort(sc->sc_ah, 0);
707 if (ieee80211_is_pspoll(hdr->frame_control)) {
709 "Sending PS-Poll to pick a buffered frame\n");
710 sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA;
712 ath_dbg(common, PS, "Wake up to complete TX\n");
713 sc->ps_flags |= PS_WAIT_FOR_TX_ACK;
716 * The actual restore operation will happen only after
717 * the ps_flags bit is cleared. We are just dropping
718 * the ps_usecount here.
720 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
721 ath9k_ps_restore(sc);
725 * Cannot tx while the hardware is in full sleep, it first needs a full
726 * chip reset to recover from that
728 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_FULL_SLEEP)) {
729 ath_err(common, "TX while HW is in FULL_SLEEP mode\n");
733 memset(&txctl, 0, sizeof(struct ath_tx_control));
734 txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)];
735 txctl.sta = control->sta;
737 ath_dbg(common, XMIT, "transmitting packet, skb: %p\n", skb);
739 if (ath_tx_start(hw, skb, &txctl) != 0) {
740 ath_dbg(common, XMIT, "TX failed\n");
741 TX_STAT_INC(txctl.txq->axq_qnum, txfailed);
747 ieee80211_free_txskb(hw, skb);
750 static void ath9k_stop(struct ieee80211_hw *hw)
752 struct ath_softc *sc = hw->priv;
753 struct ath_hw *ah = sc->sc_ah;
754 struct ath_common *common = ath9k_hw_common(ah);
757 mutex_lock(&sc->mutex);
760 del_timer_sync(&sc->rx_poll_timer);
762 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
763 ath_dbg(common, ANY, "Device not present\n");
764 mutex_unlock(&sc->mutex);
768 /* Ensure HW is awake when we try to shut it down. */
771 spin_lock_bh(&sc->sc_pcu_lock);
773 /* prevent tasklets to enable interrupts once we disable them */
774 ah->imask &= ~ATH9K_INT_GLOBAL;
776 /* make sure h/w will not generate any interrupt
777 * before setting the invalid flag. */
778 ath9k_hw_disable_interrupts(ah);
780 spin_unlock_bh(&sc->sc_pcu_lock);
782 /* we can now sync irq and kill any running tasklets, since we already
783 * disabled interrupts and not holding a spin lock */
784 synchronize_irq(sc->irq);
785 tasklet_kill(&sc->intr_tq);
786 tasklet_kill(&sc->bcon_tasklet);
788 prev_idle = sc->ps_idle;
791 spin_lock_bh(&sc->sc_pcu_lock);
793 if (ah->led_pin >= 0) {
794 ath9k_hw_set_gpio(ah, ah->led_pin, 1);
795 ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
798 ath_prepare_reset(sc);
801 dev_kfree_skb_any(sc->rx.frag);
806 ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
808 ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
809 ath9k_hw_phy_disable(ah);
811 ath9k_hw_configpcipowersave(ah, true);
813 spin_unlock_bh(&sc->sc_pcu_lock);
815 ath9k_ps_restore(sc);
817 set_bit(SC_OP_INVALID, &sc->sc_flags);
818 sc->ps_idle = prev_idle;
820 mutex_unlock(&sc->mutex);
822 ath_dbg(common, CONFIG, "Driver halt\n");
825 bool ath9k_uses_beacons(int type)
828 case NL80211_IFTYPE_AP:
829 case NL80211_IFTYPE_ADHOC:
830 case NL80211_IFTYPE_MESH_POINT:
837 static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
839 struct ath9k_vif_iter_data *iter_data = data;
842 if (iter_data->hw_macaddr)
843 for (i = 0; i < ETH_ALEN; i++)
844 iter_data->mask[i] &=
845 ~(iter_data->hw_macaddr[i] ^ mac[i]);
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 iter_data->hw_macaddr = common->macaddr;
895 memset(&iter_data->mask, 0xff, ETH_ALEN);
898 ath9k_vif_iter(iter_data, vif->addr, vif);
900 /* Get list of all active MAC addresses */
901 ieee80211_iterate_active_interfaces_atomic(
902 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
903 ath9k_vif_iter, iter_data);
906 /* Called with sc->mutex held. */
907 static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
908 struct ieee80211_vif *vif)
910 struct ath_softc *sc = hw->priv;
911 struct ath_hw *ah = sc->sc_ah;
912 struct ath_common *common = ath9k_hw_common(ah);
913 struct ath9k_vif_iter_data iter_data;
914 enum nl80211_iftype old_opmode = ah->opmode;
916 ath9k_calculate_iter_data(hw, vif, &iter_data);
918 memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
919 ath_hw_setbssidmask(common);
921 if (iter_data.naps > 0) {
922 ath9k_hw_set_tsfadjust(ah, true);
923 ah->opmode = NL80211_IFTYPE_AP;
925 ath9k_hw_set_tsfadjust(ah, false);
927 if (iter_data.nmeshes)
928 ah->opmode = NL80211_IFTYPE_MESH_POINT;
929 else if (iter_data.nwds)
930 ah->opmode = NL80211_IFTYPE_AP;
931 else if (iter_data.nadhocs)
932 ah->opmode = NL80211_IFTYPE_ADHOC;
934 ah->opmode = NL80211_IFTYPE_STATION;
937 ath9k_hw_setopmode(ah);
939 if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0)
940 ah->imask |= ATH9K_INT_TSFOOR;
942 ah->imask &= ~ATH9K_INT_TSFOOR;
944 ath9k_hw_set_interrupts(ah);
947 * If we are changing the opmode to STATION,
948 * a beacon sync needs to be done.
950 if (ah->opmode == NL80211_IFTYPE_STATION &&
951 old_opmode == NL80211_IFTYPE_AP &&
952 test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
953 ieee80211_iterate_active_interfaces_atomic(
954 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
955 ath9k_sta_vif_iter, sc);
959 static int ath9k_add_interface(struct ieee80211_hw *hw,
960 struct ieee80211_vif *vif)
962 struct ath_softc *sc = hw->priv;
963 struct ath_hw *ah = sc->sc_ah;
964 struct ath_common *common = ath9k_hw_common(ah);
966 mutex_lock(&sc->mutex);
968 ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type);
972 ath9k_calculate_summary_state(hw, vif);
973 ath9k_ps_restore(sc);
975 if (ath9k_uses_beacons(vif->type))
976 ath9k_beacon_assign_slot(sc, vif);
978 mutex_unlock(&sc->mutex);
982 static int ath9k_change_interface(struct ieee80211_hw *hw,
983 struct ieee80211_vif *vif,
984 enum nl80211_iftype new_type,
987 struct ath_softc *sc = hw->priv;
988 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
990 ath_dbg(common, CONFIG, "Change Interface\n");
991 mutex_lock(&sc->mutex);
993 if (ath9k_uses_beacons(vif->type))
994 ath9k_beacon_remove_slot(sc, vif);
996 vif->type = new_type;
1000 ath9k_calculate_summary_state(hw, vif);
1001 ath9k_ps_restore(sc);
1003 if (ath9k_uses_beacons(vif->type))
1004 ath9k_beacon_assign_slot(sc, vif);
1006 mutex_unlock(&sc->mutex);
1010 static void ath9k_remove_interface(struct ieee80211_hw *hw,
1011 struct ieee80211_vif *vif)
1013 struct ath_softc *sc = hw->priv;
1014 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1016 ath_dbg(common, CONFIG, "Detach Interface\n");
1018 mutex_lock(&sc->mutex);
1022 if (ath9k_uses_beacons(vif->type))
1023 ath9k_beacon_remove_slot(sc, vif);
1025 ath9k_ps_wakeup(sc);
1026 ath9k_calculate_summary_state(hw, NULL);
1027 ath9k_ps_restore(sc);
1029 mutex_unlock(&sc->mutex);
1032 static void ath9k_enable_ps(struct ath_softc *sc)
1034 struct ath_hw *ah = sc->sc_ah;
1035 struct ath_common *common = ath9k_hw_common(ah);
1037 sc->ps_enabled = true;
1038 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1039 if ((ah->imask & ATH9K_INT_TIM_TIMER) == 0) {
1040 ah->imask |= ATH9K_INT_TIM_TIMER;
1041 ath9k_hw_set_interrupts(ah);
1043 ath9k_hw_setrxabort(ah, 1);
1045 ath_dbg(common, PS, "PowerSave enabled\n");
1048 static void ath9k_disable_ps(struct ath_softc *sc)
1050 struct ath_hw *ah = sc->sc_ah;
1051 struct ath_common *common = ath9k_hw_common(ah);
1053 sc->ps_enabled = false;
1054 ath9k_hw_setpower(ah, ATH9K_PM_AWAKE);
1055 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1056 ath9k_hw_setrxabort(ah, 0);
1057 sc->ps_flags &= ~(PS_WAIT_FOR_BEACON |
1059 PS_WAIT_FOR_PSPOLL_DATA |
1060 PS_WAIT_FOR_TX_ACK);
1061 if (ah->imask & ATH9K_INT_TIM_TIMER) {
1062 ah->imask &= ~ATH9K_INT_TIM_TIMER;
1063 ath9k_hw_set_interrupts(ah);
1066 ath_dbg(common, PS, "PowerSave disabled\n");
1069 void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw)
1071 struct ath_softc *sc = hw->priv;
1072 struct ath_hw *ah = sc->sc_ah;
1073 struct ath_common *common = ath9k_hw_common(ah);
1076 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1077 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1081 ath9k_ps_wakeup(sc);
1082 rxfilter = ath9k_hw_getrxfilter(ah);
1083 ath9k_hw_setrxfilter(ah, rxfilter |
1084 ATH9K_RX_FILTER_PHYRADAR |
1085 ATH9K_RX_FILTER_PHYERR);
1087 /* TODO: usually this should not be neccesary, but for some reason
1088 * (or in some mode?) the trigger must be called after the
1089 * configuration, otherwise the register will have its values reset
1090 * (on my ar9220 to value 0x01002310)
1092 ath9k_spectral_scan_config(hw, sc->spectral_mode);
1093 ath9k_hw_ops(ah)->spectral_scan_trigger(ah);
1094 ath9k_ps_restore(sc);
1097 int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
1098 enum spectral_mode spectral_mode)
1100 struct ath_softc *sc = hw->priv;
1101 struct ath_hw *ah = sc->sc_ah;
1102 struct ath_common *common = ath9k_hw_common(ah);
1104 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1105 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1109 switch (spectral_mode) {
1110 case SPECTRAL_DISABLED:
1111 sc->spec_config.enabled = 0;
1113 case SPECTRAL_BACKGROUND:
1114 /* send endless samples.
1115 * TODO: is this really useful for "background"?
1117 sc->spec_config.endless = 1;
1118 sc->spec_config.enabled = 1;
1120 case SPECTRAL_CHANSCAN:
1121 case SPECTRAL_MANUAL:
1122 sc->spec_config.endless = 0;
1123 sc->spec_config.enabled = 1;
1129 ath9k_ps_wakeup(sc);
1130 ath9k_hw_ops(ah)->spectral_scan_config(ah, &sc->spec_config);
1131 ath9k_ps_restore(sc);
1133 sc->spectral_mode = spectral_mode;
1138 static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
1140 struct ath_softc *sc = hw->priv;
1141 struct ath_hw *ah = sc->sc_ah;
1142 struct ath_common *common = ath9k_hw_common(ah);
1143 struct ieee80211_conf *conf = &hw->conf;
1144 bool reset_channel = false;
1146 ath9k_ps_wakeup(sc);
1147 mutex_lock(&sc->mutex);
1149 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1150 sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1152 ath_cancel_work(sc);
1153 ath9k_stop_btcoex(sc);
1155 ath9k_start_btcoex(sc);
1157 * The chip needs a reset to properly wake up from
1160 reset_channel = ah->chip_fullsleep;
1165 * We just prepare to enable PS. We have to wait until our AP has
1166 * ACK'd our null data frame to disable RX otherwise we'll ignore
1167 * those ACKs and end up retransmitting the same null data frames.
1168 * IEEE80211_CONF_CHANGE_PS is only passed by mac80211 for STA mode.
1170 if (changed & IEEE80211_CONF_CHANGE_PS) {
1171 unsigned long flags;
1172 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1173 if (conf->flags & IEEE80211_CONF_PS)
1174 ath9k_enable_ps(sc);
1176 ath9k_disable_ps(sc);
1177 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1180 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
1181 if (conf->flags & IEEE80211_CONF_MONITOR) {
1182 ath_dbg(common, CONFIG, "Monitor mode is enabled\n");
1183 sc->sc_ah->is_monitoring = true;
1185 ath_dbg(common, CONFIG, "Monitor mode is disabled\n");
1186 sc->sc_ah->is_monitoring = false;
1190 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {
1191 struct ieee80211_channel *curchan = hw->conf.channel;
1192 int pos = curchan->hw_value;
1194 unsigned long flags;
1197 old_pos = ah->curchan - &ah->channels[0];
1199 ath_dbg(common, CONFIG, "Set channel: %d MHz type: %d\n",
1200 curchan->center_freq, conf->channel_type);
1202 /* update survey stats for the old channel before switching */
1203 spin_lock_irqsave(&common->cc_lock, flags);
1204 ath_update_survey_stats(sc);
1205 spin_unlock_irqrestore(&common->cc_lock, flags);
1208 * Preserve the current channel values, before updating
1211 if (ah->curchan && (old_pos == pos))
1212 ath9k_hw_getnf(ah, ah->curchan);
1214 ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
1215 curchan, conf->channel_type);
1218 * If the operating channel changes, change the survey in-use flags
1220 * Reset the survey data for the new channel, unless we're switching
1221 * back to the operating channel from an off-channel operation.
1223 if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) &&
1224 sc->cur_survey != &sc->survey[pos]) {
1227 sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
1229 sc->cur_survey = &sc->survey[pos];
1231 memset(sc->cur_survey, 0, sizeof(struct survey_info));
1232 sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
1233 } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
1234 memset(&sc->survey[pos], 0, sizeof(struct survey_info));
1237 if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
1238 ath_err(common, "Unable to set channel\n");
1239 mutex_unlock(&sc->mutex);
1240 ath9k_ps_restore(sc);
1245 * The most recent snapshot of channel->noisefloor for the old
1246 * channel is only available after the hardware reset. Copy it to
1247 * the survey stats now.
1250 ath_update_survey_nf(sc, old_pos);
1252 /* perform spectral scan if requested. */
1253 if (sc->scanning && sc->spectral_mode == SPECTRAL_CHANSCAN)
1254 ath9k_spectral_scan_trigger(hw);
1258 if (changed & IEEE80211_CONF_CHANGE_POWER) {
1259 ath_dbg(common, CONFIG, "Set power: %d\n", conf->power_level);
1260 sc->config.txpowlimit = 2 * conf->power_level;
1261 ath9k_cmn_update_txpow(ah, sc->curtxpow,
1262 sc->config.txpowlimit, &sc->curtxpow);
1265 mutex_unlock(&sc->mutex);
1266 ath9k_ps_restore(sc);
1271 #define SUPPORTED_FILTERS \
1272 (FIF_PROMISC_IN_BSS | \
1277 FIF_BCN_PRBRESP_PROMISC | \
1281 /* FIXME: sc->sc_full_reset ? */
1282 static void ath9k_configure_filter(struct ieee80211_hw *hw,
1283 unsigned int changed_flags,
1284 unsigned int *total_flags,
1287 struct ath_softc *sc = hw->priv;
1290 changed_flags &= SUPPORTED_FILTERS;
1291 *total_flags &= SUPPORTED_FILTERS;
1293 sc->rx.rxfilter = *total_flags;
1294 ath9k_ps_wakeup(sc);
1295 rfilt = ath_calcrxfilter(sc);
1296 ath9k_hw_setrxfilter(sc->sc_ah, rfilt);
1297 ath9k_ps_restore(sc);
1299 ath_dbg(ath9k_hw_common(sc->sc_ah), CONFIG, "Set HW RX filter: 0x%x\n",
1303 static int ath9k_sta_add(struct ieee80211_hw *hw,
1304 struct ieee80211_vif *vif,
1305 struct ieee80211_sta *sta)
1307 struct ath_softc *sc = hw->priv;
1308 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1309 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1310 struct ieee80211_key_conf ps_key = { };
1312 ath_node_attach(sc, sta, vif);
1314 if (vif->type != NL80211_IFTYPE_AP &&
1315 vif->type != NL80211_IFTYPE_AP_VLAN)
1318 an->ps_key = ath_key_config(common, vif, sta, &ps_key);
1323 static void ath9k_del_ps_key(struct ath_softc *sc,
1324 struct ieee80211_vif *vif,
1325 struct ieee80211_sta *sta)
1327 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1328 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1329 struct ieee80211_key_conf ps_key = { .hw_key_idx = an->ps_key };
1334 ath_key_delete(common, &ps_key);
1337 static int ath9k_sta_remove(struct ieee80211_hw *hw,
1338 struct ieee80211_vif *vif,
1339 struct ieee80211_sta *sta)
1341 struct ath_softc *sc = hw->priv;
1343 ath9k_del_ps_key(sc, vif, sta);
1344 ath_node_detach(sc, sta);
1349 static void ath9k_sta_notify(struct ieee80211_hw *hw,
1350 struct ieee80211_vif *vif,
1351 enum sta_notify_cmd cmd,
1352 struct ieee80211_sta *sta)
1354 struct ath_softc *sc = hw->priv;
1355 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1357 if (!sta->ht_cap.ht_supported)
1361 case STA_NOTIFY_SLEEP:
1362 an->sleeping = true;
1363 ath_tx_aggr_sleep(sta, sc, an);
1365 case STA_NOTIFY_AWAKE:
1366 an->sleeping = false;
1367 ath_tx_aggr_wakeup(sc, an);
1372 static int ath9k_conf_tx(struct ieee80211_hw *hw,
1373 struct ieee80211_vif *vif, u16 queue,
1374 const struct ieee80211_tx_queue_params *params)
1376 struct ath_softc *sc = hw->priv;
1377 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1378 struct ath_txq *txq;
1379 struct ath9k_tx_queue_info qi;
1382 if (queue >= IEEE80211_NUM_ACS)
1385 txq = sc->tx.txq_map[queue];
1387 ath9k_ps_wakeup(sc);
1388 mutex_lock(&sc->mutex);
1390 memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
1392 qi.tqi_aifs = params->aifs;
1393 qi.tqi_cwmin = params->cw_min;
1394 qi.tqi_cwmax = params->cw_max;
1395 qi.tqi_burstTime = params->txop * 32;
1397 ath_dbg(common, CONFIG,
1398 "Configure tx [queue/halq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
1399 queue, txq->axq_qnum, params->aifs, params->cw_min,
1400 params->cw_max, params->txop);
1402 ath_update_max_aggr_framelen(sc, queue, qi.tqi_burstTime);
1403 ret = ath_txq_update(sc, txq->axq_qnum, &qi);
1405 ath_err(common, "TXQ Update failed\n");
1407 mutex_unlock(&sc->mutex);
1408 ath9k_ps_restore(sc);
1413 static int ath9k_set_key(struct ieee80211_hw *hw,
1414 enum set_key_cmd cmd,
1415 struct ieee80211_vif *vif,
1416 struct ieee80211_sta *sta,
1417 struct ieee80211_key_conf *key)
1419 struct ath_softc *sc = hw->priv;
1420 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1423 if (ath9k_modparam_nohwcrypt)
1426 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1427 vif->type == NL80211_IFTYPE_MESH_POINT) &&
1428 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
1429 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
1430 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
1432 * For now, disable hw crypto for the RSN IBSS group keys. This
1433 * could be optimized in the future to use a modified key cache
1434 * design to support per-STA RX GTK, but until that gets
1435 * implemented, use of software crypto for group addressed
1436 * frames is a acceptable to allow RSN IBSS to be used.
1441 mutex_lock(&sc->mutex);
1442 ath9k_ps_wakeup(sc);
1443 ath_dbg(common, CONFIG, "Set HW Key\n");
1448 ath9k_del_ps_key(sc, vif, sta);
1450 ret = ath_key_config(common, vif, sta, key);
1452 key->hw_key_idx = ret;
1453 /* push IV and Michael MIC generation to stack */
1454 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1455 if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
1456 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1457 if (sc->sc_ah->sw_mgmt_crypto &&
1458 key->cipher == WLAN_CIPHER_SUITE_CCMP)
1459 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
1464 ath_key_delete(common, key);
1470 ath9k_ps_restore(sc);
1471 mutex_unlock(&sc->mutex);
1476 static void ath9k_set_assoc_state(struct ath_softc *sc,
1477 struct ieee80211_vif *vif)
1479 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1480 struct ath_vif *avp = (void *)vif->drv_priv;
1481 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1482 unsigned long flags;
1484 set_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1485 avp->primary_sta_vif = true;
1488 * Set the AID, BSSID and do beacon-sync only when
1489 * the HW opmode is STATION.
1491 * But the primary bit is set above in any case.
1493 if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
1496 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1497 common->curaid = bss_conf->aid;
1498 ath9k_hw_write_associd(sc->sc_ah);
1500 sc->last_rssi = ATH_RSSI_DUMMY_MARKER;
1501 sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
1503 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1504 sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
1505 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1507 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1508 ath9k_mci_update_wlan_channels(sc, false);
1510 ath_dbg(common, CONFIG,
1511 "Primary Station interface: %pM, BSSID: %pM\n",
1512 vif->addr, common->curbssid);
1515 static void ath9k_bss_assoc_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
1517 struct ath_softc *sc = data;
1518 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1520 if (test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags))
1523 if (bss_conf->assoc)
1524 ath9k_set_assoc_state(sc, vif);
1527 static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
1528 struct ieee80211_vif *vif,
1529 struct ieee80211_bss_conf *bss_conf,
1533 (BSS_CHANGED_ASSOC | \
1534 BSS_CHANGED_IBSS | \
1535 BSS_CHANGED_BEACON_ENABLED)
1537 struct ath_softc *sc = hw->priv;
1538 struct ath_hw *ah = sc->sc_ah;
1539 struct ath_common *common = ath9k_hw_common(ah);
1540 struct ath_vif *avp = (void *)vif->drv_priv;
1543 ath9k_ps_wakeup(sc);
1544 mutex_lock(&sc->mutex);
1546 if (changed & BSS_CHANGED_ASSOC) {
1547 ath_dbg(common, CONFIG, "BSSID %pM Changed ASSOC %d\n",
1548 bss_conf->bssid, bss_conf->assoc);
1550 if (avp->primary_sta_vif && !bss_conf->assoc) {
1551 clear_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1552 avp->primary_sta_vif = false;
1554 if (ah->opmode == NL80211_IFTYPE_STATION)
1555 clear_bit(SC_OP_BEACONS, &sc->sc_flags);
1558 ieee80211_iterate_active_interfaces_atomic(
1559 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1560 ath9k_bss_assoc_iter, sc);
1562 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags) &&
1563 ah->opmode == NL80211_IFTYPE_STATION) {
1564 memset(common->curbssid, 0, ETH_ALEN);
1566 ath9k_hw_write_associd(sc->sc_ah);
1567 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1568 ath9k_mci_update_wlan_channels(sc, true);
1572 if (changed & BSS_CHANGED_IBSS) {
1573 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1574 common->curaid = bss_conf->aid;
1575 ath9k_hw_write_associd(sc->sc_ah);
1578 if ((changed & BSS_CHANGED_BEACON_ENABLED) ||
1579 (changed & BSS_CHANGED_BEACON_INT)) {
1580 if (ah->opmode == NL80211_IFTYPE_AP &&
1581 bss_conf->enable_beacon)
1582 ath9k_set_tsfadjust(sc, vif);
1583 if (ath9k_allow_beacon_config(sc, vif))
1584 ath9k_beacon_config(sc, vif, changed);
1587 if (changed & BSS_CHANGED_ERP_SLOT) {
1588 if (bss_conf->use_short_slot)
1592 if (vif->type == NL80211_IFTYPE_AP) {
1594 * Defer update, so that connected stations can adjust
1595 * their settings at the same time.
1596 * See beacon.c for more details
1598 sc->beacon.slottime = slottime;
1599 sc->beacon.updateslot = UPDATE;
1601 ah->slottime = slottime;
1602 ath9k_hw_init_global_settings(ah);
1606 if (changed & CHECK_ANI)
1609 mutex_unlock(&sc->mutex);
1610 ath9k_ps_restore(sc);
1615 static u64 ath9k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1617 struct ath_softc *sc = hw->priv;
1620 mutex_lock(&sc->mutex);
1621 ath9k_ps_wakeup(sc);
1622 tsf = ath9k_hw_gettsf64(sc->sc_ah);
1623 ath9k_ps_restore(sc);
1624 mutex_unlock(&sc->mutex);
1629 static void ath9k_set_tsf(struct ieee80211_hw *hw,
1630 struct ieee80211_vif *vif,
1633 struct ath_softc *sc = hw->priv;
1635 mutex_lock(&sc->mutex);
1636 ath9k_ps_wakeup(sc);
1637 ath9k_hw_settsf64(sc->sc_ah, tsf);
1638 ath9k_ps_restore(sc);
1639 mutex_unlock(&sc->mutex);
1642 static void ath9k_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1644 struct ath_softc *sc = hw->priv;
1646 mutex_lock(&sc->mutex);
1648 ath9k_ps_wakeup(sc);
1649 ath9k_hw_reset_tsf(sc->sc_ah);
1650 ath9k_ps_restore(sc);
1652 mutex_unlock(&sc->mutex);
1655 static int ath9k_ampdu_action(struct ieee80211_hw *hw,
1656 struct ieee80211_vif *vif,
1657 enum ieee80211_ampdu_mlme_action action,
1658 struct ieee80211_sta *sta,
1659 u16 tid, u16 *ssn, u8 buf_size)
1661 struct ath_softc *sc = hw->priv;
1667 case IEEE80211_AMPDU_RX_START:
1669 case IEEE80211_AMPDU_RX_STOP:
1671 case IEEE80211_AMPDU_TX_START:
1672 ath9k_ps_wakeup(sc);
1673 ret = ath_tx_aggr_start(sc, sta, tid, ssn);
1675 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1676 ath9k_ps_restore(sc);
1678 case IEEE80211_AMPDU_TX_STOP_CONT:
1679 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1680 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1681 ath9k_ps_wakeup(sc);
1682 ath_tx_aggr_stop(sc, sta, tid);
1683 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1684 ath9k_ps_restore(sc);
1686 case IEEE80211_AMPDU_TX_OPERATIONAL:
1687 ath9k_ps_wakeup(sc);
1688 ath_tx_aggr_resume(sc, sta, tid);
1689 ath9k_ps_restore(sc);
1692 ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n");
1700 static int ath9k_get_survey(struct ieee80211_hw *hw, int idx,
1701 struct survey_info *survey)
1703 struct ath_softc *sc = hw->priv;
1704 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1705 struct ieee80211_supported_band *sband;
1706 struct ieee80211_channel *chan;
1707 unsigned long flags;
1710 spin_lock_irqsave(&common->cc_lock, flags);
1712 ath_update_survey_stats(sc);
1714 sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
1715 if (sband && idx >= sband->n_channels) {
1716 idx -= sband->n_channels;
1721 sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
1723 if (!sband || idx >= sband->n_channels) {
1724 spin_unlock_irqrestore(&common->cc_lock, flags);
1728 chan = &sband->channels[idx];
1729 pos = chan->hw_value;
1730 memcpy(survey, &sc->survey[pos], sizeof(*survey));
1731 survey->channel = chan;
1732 spin_unlock_irqrestore(&common->cc_lock, flags);
1737 static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
1739 struct ath_softc *sc = hw->priv;
1740 struct ath_hw *ah = sc->sc_ah;
1742 mutex_lock(&sc->mutex);
1743 ah->coverage_class = coverage_class;
1745 ath9k_ps_wakeup(sc);
1746 ath9k_hw_init_global_settings(ah);
1747 ath9k_ps_restore(sc);
1749 mutex_unlock(&sc->mutex);
1752 static void ath9k_flush(struct ieee80211_hw *hw, bool drop)
1754 struct ath_softc *sc = hw->priv;
1755 struct ath_hw *ah = sc->sc_ah;
1756 struct ath_common *common = ath9k_hw_common(ah);
1757 int timeout = 200; /* ms */
1761 mutex_lock(&sc->mutex);
1762 cancel_delayed_work_sync(&sc->tx_complete_work);
1764 if (ah->ah_flags & AH_UNPLUGGED) {
1765 ath_dbg(common, ANY, "Device has been unplugged!\n");
1766 mutex_unlock(&sc->mutex);
1770 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
1771 ath_dbg(common, ANY, "Device not present\n");
1772 mutex_unlock(&sc->mutex);
1776 for (j = 0; j < timeout; j++) {
1780 usleep_range(1000, 2000);
1782 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1783 if (!ATH_TXQ_SETUP(sc, i))
1786 npend = ath9k_has_pending_frames(sc, &sc->tx.txq[i]);
1797 ath9k_ps_wakeup(sc);
1798 spin_lock_bh(&sc->sc_pcu_lock);
1799 drain_txq = ath_drain_all_txq(sc);
1800 spin_unlock_bh(&sc->sc_pcu_lock);
1805 ath9k_ps_restore(sc);
1806 ieee80211_wake_queues(hw);
1809 ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
1810 mutex_unlock(&sc->mutex);
1813 static bool ath9k_tx_frames_pending(struct ieee80211_hw *hw)
1815 struct ath_softc *sc = hw->priv;
1818 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1819 if (!ATH_TXQ_SETUP(sc, i))
1822 if (ath9k_has_pending_frames(sc, &sc->tx.txq[i]))
1828 static int ath9k_tx_last_beacon(struct ieee80211_hw *hw)
1830 struct ath_softc *sc = hw->priv;
1831 struct ath_hw *ah = sc->sc_ah;
1832 struct ieee80211_vif *vif;
1833 struct ath_vif *avp;
1835 struct ath_tx_status ts;
1836 bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
1839 vif = sc->beacon.bslot[0];
1843 if (!vif->bss_conf.enable_beacon)
1846 avp = (void *)vif->drv_priv;
1848 if (!sc->beacon.tx_processed && !edma) {
1849 tasklet_disable(&sc->bcon_tasklet);
1852 if (!bf || !bf->bf_mpdu)
1855 status = ath9k_hw_txprocdesc(ah, bf->bf_desc, &ts);
1856 if (status == -EINPROGRESS)
1859 sc->beacon.tx_processed = true;
1860 sc->beacon.tx_last = !(ts.ts_status & ATH9K_TXERR_MASK);
1863 tasklet_enable(&sc->bcon_tasklet);
1866 return sc->beacon.tx_last;
1869 static int ath9k_get_stats(struct ieee80211_hw *hw,
1870 struct ieee80211_low_level_stats *stats)
1872 struct ath_softc *sc = hw->priv;
1873 struct ath_hw *ah = sc->sc_ah;
1874 struct ath9k_mib_stats *mib_stats = &ah->ah_mibStats;
1876 stats->dot11ACKFailureCount = mib_stats->ackrcv_bad;
1877 stats->dot11RTSFailureCount = mib_stats->rts_bad;
1878 stats->dot11FCSErrorCount = mib_stats->fcs_bad;
1879 stats->dot11RTSSuccessCount = mib_stats->rts_good;
1883 static u32 fill_chainmask(u32 cap, u32 new)
1888 for (i = 0; cap && new; i++, cap >>= 1) {
1889 if (!(cap & BIT(0)))
1901 static bool validate_antenna_mask(struct ath_hw *ah, u32 val)
1903 if (AR_SREV_9300_20_OR_LATER(ah))
1906 switch (val & 0x7) {
1912 return (ah->caps.rx_chainmask == 1);
1918 static int ath9k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
1920 struct ath_softc *sc = hw->priv;
1921 struct ath_hw *ah = sc->sc_ah;
1923 if (ah->caps.rx_chainmask != 1)
1926 if (!validate_antenna_mask(ah, rx_ant) || !tx_ant)
1929 sc->ant_rx = rx_ant;
1930 sc->ant_tx = tx_ant;
1932 if (ah->caps.rx_chainmask == 1)
1935 /* AR9100 runs into calibration issues if not all rx chains are enabled */
1936 if (AR_SREV_9100(ah))
1937 ah->rxchainmask = 0x7;
1939 ah->rxchainmask = fill_chainmask(ah->caps.rx_chainmask, rx_ant);
1941 ah->txchainmask = fill_chainmask(ah->caps.tx_chainmask, tx_ant);
1942 ath9k_reload_chainmask_settings(sc);
1947 static int ath9k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
1949 struct ath_softc *sc = hw->priv;
1951 *tx_ant = sc->ant_tx;
1952 *rx_ant = sc->ant_rx;
1956 #ifdef CONFIG_PM_SLEEP
1958 static void ath9k_wow_map_triggers(struct ath_softc *sc,
1959 struct cfg80211_wowlan *wowlan,
1962 if (wowlan->disconnect)
1963 *wow_triggers |= AH_WOW_LINK_CHANGE |
1965 if (wowlan->magic_pkt)
1966 *wow_triggers |= AH_WOW_MAGIC_PATTERN_EN;
1968 if (wowlan->n_patterns)
1969 *wow_triggers |= AH_WOW_USER_PATTERN_EN;
1971 sc->wow_enabled = *wow_triggers;
1975 static void ath9k_wow_add_disassoc_deauth_pattern(struct ath_softc *sc)
1977 struct ath_hw *ah = sc->sc_ah;
1978 struct ath_common *common = ath9k_hw_common(ah);
1979 struct ath9k_hw_capabilities *pcaps = &ah->caps;
1980 int pattern_count = 0;
1982 u8 dis_deauth_pattern[MAX_PATTERN_SIZE];
1983 u8 dis_deauth_mask[MAX_PATTERN_SIZE];
1985 memset(dis_deauth_pattern, 0, MAX_PATTERN_SIZE);
1986 memset(dis_deauth_mask, 0, MAX_PATTERN_SIZE);
1989 * Create Dissassociate / Deauthenticate packet filter
1991 * 2 bytes 2 byte 6 bytes 6 bytes 6 bytes
1992 * +--------------+----------+---------+--------+--------+----
1993 * + Frame Control+ Duration + DA + SA + BSSID +
1994 * +--------------+----------+---------+--------+--------+----
1996 * The above is the management frame format for disassociate/
1997 * deauthenticate pattern, from this we need to match the first byte
1998 * of 'Frame Control' and DA, SA, and BSSID fields
1999 * (skipping 2nd byte of FC and Duration feild.
2001 * Disassociate pattern
2002 * --------------------
2003 * Frame control = 00 00 1010
2004 * DA, SA, BSSID = x:x:x:x:x:x
2005 * Pattern will be A0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2006 * | x:x:x:x:x:x -- 22 bytes
2008 * Deauthenticate pattern
2009 * ----------------------
2010 * Frame control = 00 00 1100
2011 * DA, SA, BSSID = x:x:x:x:x:x
2012 * Pattern will be C0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2013 * | x:x:x:x:x:x -- 22 bytes
2016 /* Create Disassociate Pattern first */
2020 /* Fill out the mask with all FF's */
2022 for (i = 0; i < MAX_PATTERN_MASK_SIZE; i++)
2023 dis_deauth_mask[i] = 0xff;
2025 /* copy the first byte of frame control field */
2026 dis_deauth_pattern[byte_cnt] = 0xa0;
2029 /* skip 2nd byte of frame control and Duration field */
2033 * need not match the destination mac address, it can be a broadcast
2034 * mac address or an unicast to this station
2038 /* copy the source mac address */
2039 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2043 /* copy the bssid, its same as the source mac address */
2045 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2047 /* Create Disassociate pattern mask */
2049 if (pcaps->hw_caps & ATH9K_HW_WOW_PATTERN_MATCH_EXACT) {
2051 if (pcaps->hw_caps & ATH9K_HW_WOW_PATTERN_MATCH_DWORD) {
2053 * for AR9280, because of hardware limitation, the
2054 * first 4 bytes have to be matched for all patterns.
2055 * the mask for disassociation and de-auth pattern
2056 * matching need to enable the first 4 bytes.
2057 * also the duration field needs to be filled.
2059 dis_deauth_mask[0] = 0xf0;
2062 * fill in duration field
2063 FIXME: what is the exact value ?
2065 dis_deauth_pattern[2] = 0xff;
2066 dis_deauth_pattern[3] = 0xff;
2068 dis_deauth_mask[0] = 0xfe;
2071 dis_deauth_mask[1] = 0x03;
2072 dis_deauth_mask[2] = 0xc0;
2074 dis_deauth_mask[0] = 0xef;
2075 dis_deauth_mask[1] = 0x3f;
2076 dis_deauth_mask[2] = 0x00;
2077 dis_deauth_mask[3] = 0xfc;
2080 ath_dbg(common, WOW, "Adding disassoc/deauth patterns for WoW\n");
2082 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2083 pattern_count, byte_cnt);
2087 * for de-authenticate pattern, only the first byte of the frame
2088 * control field gets changed from 0xA0 to 0xC0
2090 dis_deauth_pattern[0] = 0xC0;
2092 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2093 pattern_count, byte_cnt);
2097 static void ath9k_wow_add_pattern(struct ath_softc *sc,
2098 struct cfg80211_wowlan *wowlan)
2100 struct ath_hw *ah = sc->sc_ah;
2101 struct ath9k_wow_pattern *wow_pattern = NULL;
2102 struct cfg80211_wowlan_trig_pkt_pattern *patterns = wowlan->patterns;
2106 if (!wowlan->n_patterns)
2110 * Add the new user configured patterns
2112 for (i = 0; i < wowlan->n_patterns; i++) {
2114 wow_pattern = kzalloc(sizeof(*wow_pattern), GFP_KERNEL);
2120 * TODO: convert the generic user space pattern to
2121 * appropriate chip specific/802.11 pattern.
2124 mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
2125 memset(wow_pattern->pattern_bytes, 0, MAX_PATTERN_SIZE);
2126 memset(wow_pattern->mask_bytes, 0, MAX_PATTERN_SIZE);
2127 memcpy(wow_pattern->pattern_bytes, patterns[i].pattern,
2128 patterns[i].pattern_len);
2129 memcpy(wow_pattern->mask_bytes, patterns[i].mask, mask_len);
2130 wow_pattern->pattern_len = patterns[i].pattern_len;
2133 * just need to take care of deauth and disssoc pattern,
2134 * make sure we don't overwrite them.
2137 ath9k_hw_wow_apply_pattern(ah, wow_pattern->pattern_bytes,
2138 wow_pattern->mask_bytes,
2140 wow_pattern->pattern_len);
2147 static int ath9k_suspend(struct ieee80211_hw *hw,
2148 struct cfg80211_wowlan *wowlan)
2150 struct ath_softc *sc = hw->priv;
2151 struct ath_hw *ah = sc->sc_ah;
2152 struct ath_common *common = ath9k_hw_common(ah);
2153 u32 wow_triggers_enabled = 0;
2156 mutex_lock(&sc->mutex);
2158 ath_cancel_work(sc);
2160 del_timer_sync(&sc->rx_poll_timer);
2162 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
2163 ath_dbg(common, ANY, "Device not present\n");
2168 if (WARN_ON(!wowlan)) {
2169 ath_dbg(common, WOW, "None of the WoW triggers enabled\n");
2174 if (!device_can_wakeup(sc->dev)) {
2175 ath_dbg(common, WOW, "device_can_wakeup failed, WoW is not enabled\n");
2181 * none of the sta vifs are associated
2182 * and we are not currently handling multivif
2183 * cases, for instance we have to seperately
2184 * configure 'keep alive frame' for each
2188 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
2189 ath_dbg(common, WOW, "None of the STA vifs are associated\n");
2194 if (sc->nvifs > 1) {
2195 ath_dbg(common, WOW, "WoW for multivif is not yet supported\n");
2200 ath9k_wow_map_triggers(sc, wowlan, &wow_triggers_enabled);
2202 ath_dbg(common, WOW, "WoW triggers enabled 0x%x\n",
2203 wow_triggers_enabled);
2205 ath9k_ps_wakeup(sc);
2207 ath9k_stop_btcoex(sc);
2210 * Enable wake up on recieving disassoc/deauth
2213 ath9k_wow_add_disassoc_deauth_pattern(sc);
2215 if (wow_triggers_enabled & AH_WOW_USER_PATTERN_EN)
2216 ath9k_wow_add_pattern(sc, wowlan);
2218 spin_lock_bh(&sc->sc_pcu_lock);
2220 * To avoid false wake, we enable beacon miss interrupt only
2221 * when we go to sleep. We save the current interrupt mask
2222 * so we can restore it after the system wakes up
2224 sc->wow_intr_before_sleep = ah->imask;
2225 ah->imask &= ~ATH9K_INT_GLOBAL;
2226 ath9k_hw_disable_interrupts(ah);
2227 ah->imask = ATH9K_INT_BMISS | ATH9K_INT_GLOBAL;
2228 ath9k_hw_set_interrupts(ah);
2229 ath9k_hw_enable_interrupts(ah);
2231 spin_unlock_bh(&sc->sc_pcu_lock);
2234 * we can now sync irq and kill any running tasklets, since we already
2235 * disabled interrupts and not holding a spin lock
2237 synchronize_irq(sc->irq);
2238 tasklet_kill(&sc->intr_tq);
2240 ath9k_hw_wow_enable(ah, wow_triggers_enabled);
2242 ath9k_ps_restore(sc);
2243 ath_dbg(common, ANY, "WoW enabled in ath9k\n");
2244 atomic_inc(&sc->wow_sleep_proc_intr);
2247 mutex_unlock(&sc->mutex);
2251 static int ath9k_resume(struct ieee80211_hw *hw)
2253 struct ath_softc *sc = hw->priv;
2254 struct ath_hw *ah = sc->sc_ah;
2255 struct ath_common *common = ath9k_hw_common(ah);
2258 mutex_lock(&sc->mutex);
2260 ath9k_ps_wakeup(sc);
2262 spin_lock_bh(&sc->sc_pcu_lock);
2264 ath9k_hw_disable_interrupts(ah);
2265 ah->imask = sc->wow_intr_before_sleep;
2266 ath9k_hw_set_interrupts(ah);
2267 ath9k_hw_enable_interrupts(ah);
2269 spin_unlock_bh(&sc->sc_pcu_lock);
2271 wow_status = ath9k_hw_wow_wakeup(ah);
2273 if (atomic_read(&sc->wow_got_bmiss_intr) == 0) {
2275 * some devices may not pick beacon miss
2276 * as the reason they woke up so we add
2277 * that here for that shortcoming.
2279 wow_status |= AH_WOW_BEACON_MISS;
2280 atomic_dec(&sc->wow_got_bmiss_intr);
2281 ath_dbg(common, ANY, "Beacon miss interrupt picked up during WoW sleep\n");
2284 atomic_dec(&sc->wow_sleep_proc_intr);
2287 ath_dbg(common, ANY, "Waking up due to WoW triggers %s with WoW status = %x\n",
2288 ath9k_hw_wow_event_to_string(wow_status), wow_status);
2291 ath_restart_work(sc);
2292 ath9k_start_btcoex(sc);
2294 ath9k_ps_restore(sc);
2295 mutex_unlock(&sc->mutex);
2300 static void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2302 struct ath_softc *sc = hw->priv;
2304 mutex_lock(&sc->mutex);
2305 device_init_wakeup(sc->dev, 1);
2306 device_set_wakeup_enable(sc->dev, enabled);
2307 mutex_unlock(&sc->mutex);
2311 static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
2313 struct ath_softc *sc = hw->priv;
2318 static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
2320 struct ath_softc *sc = hw->priv;
2325 struct ieee80211_ops ath9k_ops = {
2327 .start = ath9k_start,
2329 .add_interface = ath9k_add_interface,
2330 .change_interface = ath9k_change_interface,
2331 .remove_interface = ath9k_remove_interface,
2332 .config = ath9k_config,
2333 .configure_filter = ath9k_configure_filter,
2334 .sta_add = ath9k_sta_add,
2335 .sta_remove = ath9k_sta_remove,
2336 .sta_notify = ath9k_sta_notify,
2337 .conf_tx = ath9k_conf_tx,
2338 .bss_info_changed = ath9k_bss_info_changed,
2339 .set_key = ath9k_set_key,
2340 .get_tsf = ath9k_get_tsf,
2341 .set_tsf = ath9k_set_tsf,
2342 .reset_tsf = ath9k_reset_tsf,
2343 .ampdu_action = ath9k_ampdu_action,
2344 .get_survey = ath9k_get_survey,
2345 .rfkill_poll = ath9k_rfkill_poll_state,
2346 .set_coverage_class = ath9k_set_coverage_class,
2347 .flush = ath9k_flush,
2348 .tx_frames_pending = ath9k_tx_frames_pending,
2349 .tx_last_beacon = ath9k_tx_last_beacon,
2350 .get_stats = ath9k_get_stats,
2351 .set_antenna = ath9k_set_antenna,
2352 .get_antenna = ath9k_get_antenna,
2354 #ifdef CONFIG_PM_SLEEP
2355 .suspend = ath9k_suspend,
2356 .resume = ath9k_resume,
2357 .set_wakeup = ath9k_set_wakeup,
2360 #ifdef CONFIG_ATH9K_DEBUGFS
2361 .get_et_sset_count = ath9k_get_et_sset_count,
2362 .get_et_stats = ath9k_get_et_stats,
2363 .get_et_strings = ath9k_get_et_strings,
2366 #if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_DEBUGFS)
2367 .sta_add_debugfs = ath9k_sta_add_debugfs,
2368 .sta_remove_debugfs = ath9k_sta_remove_debugfs,
2370 .sw_scan_start = ath9k_sw_scan_start,
2371 .sw_scan_complete = ath9k_sw_scan_complete,