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);
286 if (ath9k_hw_mci_is_enabled(sc->sc_ah) &&
287 (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
288 ath9k_mci_set_txpower(sc, true, false);
290 if (!ath_complete_reset(sc, true))
294 spin_unlock_bh(&sc->sc_pcu_lock);
295 tasklet_enable(&sc->intr_tq);
302 * Set/change channels. If the channel is really being changed, it's done
303 * by reseting the chip. To accomplish this we must first cleanup any pending
304 * DMA, then restart stuff.
306 static int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
307 struct ath9k_channel *hchan)
311 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
314 r = ath_reset_internal(sc, hchan);
319 static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
320 struct ieee80211_vif *vif)
323 an = (struct ath_node *)sta->drv_priv;
329 ath_tx_node_init(sc, an);
331 if (sta->ht_cap.ht_supported) {
332 an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
333 sta->ht_cap.ampdu_factor);
334 an->mpdudensity = ath9k_parse_mpdudensity(sta->ht_cap.ampdu_density);
338 static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
340 struct ath_node *an = (struct ath_node *)sta->drv_priv;
341 ath_tx_node_cleanup(sc, an);
344 void ath9k_tasklet(unsigned long data)
346 struct ath_softc *sc = (struct ath_softc *)data;
347 struct ath_hw *ah = sc->sc_ah;
348 struct ath_common *common = ath9k_hw_common(ah);
349 enum ath_reset_type type;
351 u32 status = sc->intrstatus;
355 spin_lock(&sc->sc_pcu_lock);
357 if ((status & ATH9K_INT_FATAL) ||
358 (status & ATH9K_INT_BB_WATCHDOG)) {
360 if (status & ATH9K_INT_FATAL)
361 type = RESET_TYPE_FATAL_INT;
363 type = RESET_TYPE_BB_WATCHDOG;
365 ath9k_queue_reset(sc, type);
369 spin_lock_irqsave(&sc->sc_pm_lock, flags);
370 if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) {
372 * TSF sync does not look correct; remain awake to sync with
375 ath_dbg(common, PS, "TSFOOR - Sync with next Beacon\n");
376 sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC;
378 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
380 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
381 rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL |
384 rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
386 if (status & rxmask) {
387 /* Check for high priority Rx first */
388 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
389 (status & ATH9K_INT_RXHP))
390 ath_rx_tasklet(sc, 0, true);
392 ath_rx_tasklet(sc, 0, false);
395 if (status & ATH9K_INT_TX) {
396 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
397 ath_tx_edma_tasklet(sc);
402 ath9k_btcoex_handle_interrupt(sc, status);
405 /* re-enable hardware interrupt */
406 ath9k_hw_enable_interrupts(ah);
408 spin_unlock(&sc->sc_pcu_lock);
409 ath9k_ps_restore(sc);
412 irqreturn_t ath_isr(int irq, void *dev)
414 #define SCHED_INTR ( \
416 ATH9K_INT_BB_WATCHDOG | \
426 ATH9K_INT_GENTIMER | \
429 struct ath_softc *sc = dev;
430 struct ath_hw *ah = sc->sc_ah;
431 struct ath_common *common = ath9k_hw_common(ah);
432 enum ath9k_int status;
436 * The hardware is not ready/present, don't
437 * touch anything. Note this can happen early
438 * on if the IRQ is shared.
440 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
443 /* shared irq, not for us */
445 if (!ath9k_hw_intrpend(ah))
448 if (test_bit(SC_OP_HW_RESET, &sc->sc_flags)) {
449 ath9k_hw_kill_interrupts(ah);
454 * Figure out the reason(s) for the interrupt. Note
455 * that the hal returns a pseudo-ISR that may include
456 * bits we haven't explicitly enabled so we mask the
457 * value to insure we only process bits we requested.
459 ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */
460 status &= ah->imask; /* discard unasked-for bits */
463 * If there are no status bits set, then this interrupt was not
464 * for me (should have been caught above).
469 /* Cache the status */
470 sc->intrstatus = status;
472 if (status & SCHED_INTR)
476 * If a FATAL or RXORN interrupt is received, we have to reset the
479 if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) &&
480 !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)))
483 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
484 (status & ATH9K_INT_BB_WATCHDOG)) {
486 spin_lock(&common->cc_lock);
487 ath_hw_cycle_counters_update(common);
488 ar9003_hw_bb_watchdog_dbg_info(ah);
489 spin_unlock(&common->cc_lock);
493 #ifdef CONFIG_PM_SLEEP
494 if (status & ATH9K_INT_BMISS) {
495 if (atomic_read(&sc->wow_sleep_proc_intr) == 0) {
496 ath_dbg(common, ANY, "during WoW we got a BMISS\n");
497 atomic_inc(&sc->wow_got_bmiss_intr);
498 atomic_dec(&sc->wow_sleep_proc_intr);
502 if (status & ATH9K_INT_SWBA)
503 tasklet_schedule(&sc->bcon_tasklet);
505 if (status & ATH9K_INT_TXURN)
506 ath9k_hw_updatetxtriglevel(ah, true);
508 if (status & ATH9K_INT_RXEOL) {
509 ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
510 ath9k_hw_set_interrupts(ah);
513 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
514 if (status & ATH9K_INT_TIM_TIMER) {
515 if (ATH_DBG_WARN_ON_ONCE(sc->ps_idle))
517 /* Clear RxAbort bit so that we can
519 ath9k_setpower(sc, ATH9K_PM_AWAKE);
520 spin_lock(&sc->sc_pm_lock);
521 ath9k_hw_setrxabort(sc->sc_ah, 0);
522 sc->ps_flags |= PS_WAIT_FOR_BEACON;
523 spin_unlock(&sc->sc_pm_lock);
528 ath_debug_stat_interrupt(sc, status);
531 /* turn off every interrupt */
532 ath9k_hw_disable_interrupts(ah);
533 tasklet_schedule(&sc->intr_tq);
541 static int ath_reset(struct ath_softc *sc)
547 r = ath_reset_internal(sc, NULL);
549 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
550 if (!ATH_TXQ_SETUP(sc, i))
553 spin_lock_bh(&sc->tx.txq[i].axq_lock);
554 ath_txq_schedule(sc, &sc->tx.txq[i]);
555 spin_unlock_bh(&sc->tx.txq[i].axq_lock);
558 ath9k_ps_restore(sc);
563 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type)
565 #ifdef CONFIG_ATH9K_DEBUGFS
566 RESET_STAT_INC(sc, type);
568 set_bit(SC_OP_HW_RESET, &sc->sc_flags);
569 ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
572 void ath_reset_work(struct work_struct *work)
574 struct ath_softc *sc = container_of(work, struct ath_softc, hw_reset_work);
579 /**********************/
580 /* mac80211 callbacks */
581 /**********************/
583 static int ath9k_start(struct ieee80211_hw *hw)
585 struct ath_softc *sc = hw->priv;
586 struct ath_hw *ah = sc->sc_ah;
587 struct ath_common *common = ath9k_hw_common(ah);
588 struct ieee80211_channel *curchan = hw->conf.channel;
589 struct ath9k_channel *init_channel;
592 ath_dbg(common, CONFIG,
593 "Starting driver with initial channel: %d MHz\n",
594 curchan->center_freq);
597 mutex_lock(&sc->mutex);
599 init_channel = ath9k_cmn_get_curchannel(hw, ah);
601 /* Reset SERDES registers */
602 ath9k_hw_configpcipowersave(ah, false);
605 * The basic interface to setting the hardware in a good
606 * state is ``reset''. On return the hardware is known to
607 * be powered up and with interrupts disabled. This must
608 * be followed by initialization of the appropriate bits
609 * and then setup of the interrupt mask.
611 spin_lock_bh(&sc->sc_pcu_lock);
613 atomic_set(&ah->intr_ref_cnt, -1);
615 r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
618 "Unable to reset hardware; reset status %d (freq %u MHz)\n",
619 r, curchan->center_freq);
620 ah->reset_power_on = false;
623 /* Setup our intr mask. */
624 ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL |
625 ATH9K_INT_RXORN | ATH9K_INT_FATAL |
628 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
629 ah->imask |= ATH9K_INT_RXHP |
631 ATH9K_INT_BB_WATCHDOG;
633 ah->imask |= ATH9K_INT_RX;
635 ah->imask |= ATH9K_INT_GTT;
637 if (ah->caps.hw_caps & ATH9K_HW_CAP_HT)
638 ah->imask |= ATH9K_INT_CST;
642 clear_bit(SC_OP_INVALID, &sc->sc_flags);
643 sc->sc_ah->is_monitoring = false;
645 if (!ath_complete_reset(sc, false))
646 ah->reset_power_on = false;
648 if (ah->led_pin >= 0) {
649 ath9k_hw_cfg_output(ah, ah->led_pin,
650 AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
651 ath9k_hw_set_gpio(ah, ah->led_pin, 0);
655 * Reset key cache to sane defaults (all entries cleared) instead of
656 * semi-random values after suspend/resume.
658 ath9k_cmn_init_crypto(sc->sc_ah);
660 spin_unlock_bh(&sc->sc_pcu_lock);
662 mutex_unlock(&sc->mutex);
664 ath9k_ps_restore(sc);
669 static void ath9k_tx(struct ieee80211_hw *hw,
670 struct ieee80211_tx_control *control,
673 struct ath_softc *sc = hw->priv;
674 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
675 struct ath_tx_control txctl;
676 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
679 if (sc->ps_enabled) {
681 * mac80211 does not set PM field for normal data frames, so we
682 * need to update that based on the current PS mode.
684 if (ieee80211_is_data(hdr->frame_control) &&
685 !ieee80211_is_nullfunc(hdr->frame_control) &&
686 !ieee80211_has_pm(hdr->frame_control)) {
688 "Add PM=1 for a TX frame while in PS mode\n");
689 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
693 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP)) {
695 * We are using PS-Poll and mac80211 can request TX while in
696 * power save mode. Need to wake up hardware for the TX to be
697 * completed and if needed, also for RX of buffered frames.
700 spin_lock_irqsave(&sc->sc_pm_lock, flags);
701 if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
702 ath9k_hw_setrxabort(sc->sc_ah, 0);
703 if (ieee80211_is_pspoll(hdr->frame_control)) {
705 "Sending PS-Poll to pick a buffered frame\n");
706 sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA;
708 ath_dbg(common, PS, "Wake up to complete TX\n");
709 sc->ps_flags |= PS_WAIT_FOR_TX_ACK;
712 * The actual restore operation will happen only after
713 * the ps_flags bit is cleared. We are just dropping
714 * the ps_usecount here.
716 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
717 ath9k_ps_restore(sc);
721 * Cannot tx while the hardware is in full sleep, it first needs a full
722 * chip reset to recover from that
724 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_FULL_SLEEP)) {
725 ath_err(common, "TX while HW is in FULL_SLEEP mode\n");
729 memset(&txctl, 0, sizeof(struct ath_tx_control));
730 txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)];
731 txctl.sta = control->sta;
733 ath_dbg(common, XMIT, "transmitting packet, skb: %p\n", skb);
735 if (ath_tx_start(hw, skb, &txctl) != 0) {
736 ath_dbg(common, XMIT, "TX failed\n");
737 TX_STAT_INC(txctl.txq->axq_qnum, txfailed);
743 ieee80211_free_txskb(hw, skb);
746 static void ath9k_stop(struct ieee80211_hw *hw)
748 struct ath_softc *sc = hw->priv;
749 struct ath_hw *ah = sc->sc_ah;
750 struct ath_common *common = ath9k_hw_common(ah);
753 mutex_lock(&sc->mutex);
756 del_timer_sync(&sc->rx_poll_timer);
758 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
759 ath_dbg(common, ANY, "Device not present\n");
760 mutex_unlock(&sc->mutex);
764 /* Ensure HW is awake when we try to shut it down. */
767 spin_lock_bh(&sc->sc_pcu_lock);
769 /* prevent tasklets to enable interrupts once we disable them */
770 ah->imask &= ~ATH9K_INT_GLOBAL;
772 /* make sure h/w will not generate any interrupt
773 * before setting the invalid flag. */
774 ath9k_hw_disable_interrupts(ah);
776 spin_unlock_bh(&sc->sc_pcu_lock);
778 /* we can now sync irq and kill any running tasklets, since we already
779 * disabled interrupts and not holding a spin lock */
780 synchronize_irq(sc->irq);
781 tasklet_kill(&sc->intr_tq);
782 tasklet_kill(&sc->bcon_tasklet);
784 prev_idle = sc->ps_idle;
787 spin_lock_bh(&sc->sc_pcu_lock);
789 if (ah->led_pin >= 0) {
790 ath9k_hw_set_gpio(ah, ah->led_pin, 1);
791 ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
794 ath_prepare_reset(sc);
797 dev_kfree_skb_any(sc->rx.frag);
802 ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
804 ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
805 ath9k_hw_phy_disable(ah);
807 ath9k_hw_configpcipowersave(ah, true);
809 spin_unlock_bh(&sc->sc_pcu_lock);
811 ath9k_ps_restore(sc);
813 set_bit(SC_OP_INVALID, &sc->sc_flags);
814 sc->ps_idle = prev_idle;
816 mutex_unlock(&sc->mutex);
818 ath_dbg(common, CONFIG, "Driver halt\n");
821 bool ath9k_uses_beacons(int type)
824 case NL80211_IFTYPE_AP:
825 case NL80211_IFTYPE_ADHOC:
826 case NL80211_IFTYPE_MESH_POINT:
833 static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
835 struct ath9k_vif_iter_data *iter_data = data;
838 if (iter_data->hw_macaddr)
839 for (i = 0; i < ETH_ALEN; i++)
840 iter_data->mask[i] &=
841 ~(iter_data->hw_macaddr[i] ^ mac[i]);
844 case NL80211_IFTYPE_AP:
847 case NL80211_IFTYPE_STATION:
848 iter_data->nstations++;
850 case NL80211_IFTYPE_ADHOC:
851 iter_data->nadhocs++;
853 case NL80211_IFTYPE_MESH_POINT:
854 iter_data->nmeshes++;
856 case NL80211_IFTYPE_WDS:
864 static void ath9k_sta_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
866 struct ath_softc *sc = data;
867 struct ath_vif *avp = (void *)vif->drv_priv;
869 if (vif->type != NL80211_IFTYPE_STATION)
872 if (avp->primary_sta_vif)
873 ath9k_set_assoc_state(sc, vif);
876 /* Called with sc->mutex held. */
877 void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
878 struct ieee80211_vif *vif,
879 struct ath9k_vif_iter_data *iter_data)
881 struct ath_softc *sc = hw->priv;
882 struct ath_hw *ah = sc->sc_ah;
883 struct ath_common *common = ath9k_hw_common(ah);
886 * Use the hardware MAC address as reference, the hardware uses it
887 * together with the BSSID mask when matching addresses.
889 memset(iter_data, 0, sizeof(*iter_data));
890 iter_data->hw_macaddr = common->macaddr;
891 memset(&iter_data->mask, 0xff, ETH_ALEN);
894 ath9k_vif_iter(iter_data, vif->addr, vif);
896 /* Get list of all active MAC addresses */
897 ieee80211_iterate_active_interfaces_atomic(
898 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
899 ath9k_vif_iter, iter_data);
902 /* Called with sc->mutex held. */
903 static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
904 struct ieee80211_vif *vif)
906 struct ath_softc *sc = hw->priv;
907 struct ath_hw *ah = sc->sc_ah;
908 struct ath_common *common = ath9k_hw_common(ah);
909 struct ath9k_vif_iter_data iter_data;
910 enum nl80211_iftype old_opmode = ah->opmode;
912 ath9k_calculate_iter_data(hw, vif, &iter_data);
914 memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
915 ath_hw_setbssidmask(common);
917 if (iter_data.naps > 0) {
918 ath9k_hw_set_tsfadjust(ah, true);
919 ah->opmode = NL80211_IFTYPE_AP;
921 ath9k_hw_set_tsfadjust(ah, false);
923 if (iter_data.nmeshes)
924 ah->opmode = NL80211_IFTYPE_MESH_POINT;
925 else if (iter_data.nwds)
926 ah->opmode = NL80211_IFTYPE_AP;
927 else if (iter_data.nadhocs)
928 ah->opmode = NL80211_IFTYPE_ADHOC;
930 ah->opmode = NL80211_IFTYPE_STATION;
933 ath9k_hw_setopmode(ah);
935 if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0)
936 ah->imask |= ATH9K_INT_TSFOOR;
938 ah->imask &= ~ATH9K_INT_TSFOOR;
940 ath9k_hw_set_interrupts(ah);
943 * If we are changing the opmode to STATION,
944 * a beacon sync needs to be done.
946 if (ah->opmode == NL80211_IFTYPE_STATION &&
947 old_opmode == NL80211_IFTYPE_AP &&
948 test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
949 ieee80211_iterate_active_interfaces_atomic(
950 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
951 ath9k_sta_vif_iter, sc);
955 static int ath9k_add_interface(struct ieee80211_hw *hw,
956 struct ieee80211_vif *vif)
958 struct ath_softc *sc = hw->priv;
959 struct ath_hw *ah = sc->sc_ah;
960 struct ath_common *common = ath9k_hw_common(ah);
962 mutex_lock(&sc->mutex);
964 ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type);
968 ath9k_calculate_summary_state(hw, vif);
969 ath9k_ps_restore(sc);
971 if (ath9k_uses_beacons(vif->type))
972 ath9k_beacon_assign_slot(sc, vif);
974 mutex_unlock(&sc->mutex);
978 static int ath9k_change_interface(struct ieee80211_hw *hw,
979 struct ieee80211_vif *vif,
980 enum nl80211_iftype new_type,
983 struct ath_softc *sc = hw->priv;
984 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
986 ath_dbg(common, CONFIG, "Change Interface\n");
987 mutex_lock(&sc->mutex);
989 if (ath9k_uses_beacons(vif->type))
990 ath9k_beacon_remove_slot(sc, vif);
992 vif->type = new_type;
996 ath9k_calculate_summary_state(hw, vif);
997 ath9k_ps_restore(sc);
999 if (ath9k_uses_beacons(vif->type))
1000 ath9k_beacon_assign_slot(sc, vif);
1002 mutex_unlock(&sc->mutex);
1006 static void ath9k_remove_interface(struct ieee80211_hw *hw,
1007 struct ieee80211_vif *vif)
1009 struct ath_softc *sc = hw->priv;
1010 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1012 ath_dbg(common, CONFIG, "Detach Interface\n");
1014 mutex_lock(&sc->mutex);
1018 if (ath9k_uses_beacons(vif->type))
1019 ath9k_beacon_remove_slot(sc, vif);
1021 ath9k_ps_wakeup(sc);
1022 ath9k_calculate_summary_state(hw, NULL);
1023 ath9k_ps_restore(sc);
1025 mutex_unlock(&sc->mutex);
1028 static void ath9k_enable_ps(struct ath_softc *sc)
1030 struct ath_hw *ah = sc->sc_ah;
1031 struct ath_common *common = ath9k_hw_common(ah);
1033 sc->ps_enabled = true;
1034 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1035 if ((ah->imask & ATH9K_INT_TIM_TIMER) == 0) {
1036 ah->imask |= ATH9K_INT_TIM_TIMER;
1037 ath9k_hw_set_interrupts(ah);
1039 ath9k_hw_setrxabort(ah, 1);
1041 ath_dbg(common, PS, "PowerSave enabled\n");
1044 static void ath9k_disable_ps(struct ath_softc *sc)
1046 struct ath_hw *ah = sc->sc_ah;
1047 struct ath_common *common = ath9k_hw_common(ah);
1049 sc->ps_enabled = false;
1050 ath9k_hw_setpower(ah, ATH9K_PM_AWAKE);
1051 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1052 ath9k_hw_setrxabort(ah, 0);
1053 sc->ps_flags &= ~(PS_WAIT_FOR_BEACON |
1055 PS_WAIT_FOR_PSPOLL_DATA |
1056 PS_WAIT_FOR_TX_ACK);
1057 if (ah->imask & ATH9K_INT_TIM_TIMER) {
1058 ah->imask &= ~ATH9K_INT_TIM_TIMER;
1059 ath9k_hw_set_interrupts(ah);
1062 ath_dbg(common, PS, "PowerSave disabled\n");
1065 void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw)
1067 struct ath_softc *sc = hw->priv;
1068 struct ath_hw *ah = sc->sc_ah;
1069 struct ath_common *common = ath9k_hw_common(ah);
1072 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1073 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1077 ath9k_ps_wakeup(sc);
1078 rxfilter = ath9k_hw_getrxfilter(ah);
1079 ath9k_hw_setrxfilter(ah, rxfilter |
1080 ATH9K_RX_FILTER_PHYRADAR |
1081 ATH9K_RX_FILTER_PHYERR);
1083 /* TODO: usually this should not be neccesary, but for some reason
1084 * (or in some mode?) the trigger must be called after the
1085 * configuration, otherwise the register will have its values reset
1086 * (on my ar9220 to value 0x01002310)
1088 ath9k_spectral_scan_config(hw, sc->spectral_mode);
1089 ath9k_hw_ops(ah)->spectral_scan_trigger(ah);
1090 ath9k_ps_restore(sc);
1093 int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
1094 enum spectral_mode spectral_mode)
1096 struct ath_softc *sc = hw->priv;
1097 struct ath_hw *ah = sc->sc_ah;
1098 struct ath_common *common = ath9k_hw_common(ah);
1100 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1101 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1105 switch (spectral_mode) {
1106 case SPECTRAL_DISABLED:
1107 sc->spec_config.enabled = 0;
1109 case SPECTRAL_BACKGROUND:
1110 /* send endless samples.
1111 * TODO: is this really useful for "background"?
1113 sc->spec_config.endless = 1;
1114 sc->spec_config.enabled = 1;
1116 case SPECTRAL_CHANSCAN:
1117 case SPECTRAL_MANUAL:
1118 sc->spec_config.endless = 0;
1119 sc->spec_config.enabled = 1;
1125 ath9k_ps_wakeup(sc);
1126 ath9k_hw_ops(ah)->spectral_scan_config(ah, &sc->spec_config);
1127 ath9k_ps_restore(sc);
1129 sc->spectral_mode = spectral_mode;
1134 static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
1136 struct ath_softc *sc = hw->priv;
1137 struct ath_hw *ah = sc->sc_ah;
1138 struct ath_common *common = ath9k_hw_common(ah);
1139 struct ieee80211_conf *conf = &hw->conf;
1140 bool reset_channel = false;
1142 ath9k_ps_wakeup(sc);
1143 mutex_lock(&sc->mutex);
1145 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1146 sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1148 ath_cancel_work(sc);
1149 ath9k_stop_btcoex(sc);
1151 ath9k_start_btcoex(sc);
1153 * The chip needs a reset to properly wake up from
1156 reset_channel = ah->chip_fullsleep;
1161 * We just prepare to enable PS. We have to wait until our AP has
1162 * ACK'd our null data frame to disable RX otherwise we'll ignore
1163 * those ACKs and end up retransmitting the same null data frames.
1164 * IEEE80211_CONF_CHANGE_PS is only passed by mac80211 for STA mode.
1166 if (changed & IEEE80211_CONF_CHANGE_PS) {
1167 unsigned long flags;
1168 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1169 if (conf->flags & IEEE80211_CONF_PS)
1170 ath9k_enable_ps(sc);
1172 ath9k_disable_ps(sc);
1173 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1176 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
1177 if (conf->flags & IEEE80211_CONF_MONITOR) {
1178 ath_dbg(common, CONFIG, "Monitor mode is enabled\n");
1179 sc->sc_ah->is_monitoring = true;
1181 ath_dbg(common, CONFIG, "Monitor mode is disabled\n");
1182 sc->sc_ah->is_monitoring = false;
1186 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {
1187 struct ieee80211_channel *curchan = hw->conf.channel;
1188 int pos = curchan->hw_value;
1190 unsigned long flags;
1193 old_pos = ah->curchan - &ah->channels[0];
1195 ath_dbg(common, CONFIG, "Set channel: %d MHz type: %d\n",
1196 curchan->center_freq, conf->channel_type);
1198 /* update survey stats for the old channel before switching */
1199 spin_lock_irqsave(&common->cc_lock, flags);
1200 ath_update_survey_stats(sc);
1201 spin_unlock_irqrestore(&common->cc_lock, flags);
1204 * Preserve the current channel values, before updating
1207 if (ah->curchan && (old_pos == pos))
1208 ath9k_hw_getnf(ah, ah->curchan);
1210 ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
1211 curchan, conf->channel_type);
1214 * If the operating channel changes, change the survey in-use flags
1216 * Reset the survey data for the new channel, unless we're switching
1217 * back to the operating channel from an off-channel operation.
1219 if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) &&
1220 sc->cur_survey != &sc->survey[pos]) {
1223 sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
1225 sc->cur_survey = &sc->survey[pos];
1227 memset(sc->cur_survey, 0, sizeof(struct survey_info));
1228 sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
1229 } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
1230 memset(&sc->survey[pos], 0, sizeof(struct survey_info));
1233 if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
1234 ath_err(common, "Unable to set channel\n");
1235 mutex_unlock(&sc->mutex);
1236 ath9k_ps_restore(sc);
1241 * The most recent snapshot of channel->noisefloor for the old
1242 * channel is only available after the hardware reset. Copy it to
1243 * the survey stats now.
1246 ath_update_survey_nf(sc, old_pos);
1249 * Enable radar pulse detection if on a DFS channel. Spectral
1250 * scanning and radar detection can not be used concurrently.
1252 if (hw->conf.radar_enabled) {
1255 /* set HW specific DFS configuration */
1256 ath9k_hw_set_radar_params(ah);
1257 rxfilter = ath9k_hw_getrxfilter(ah);
1258 rxfilter |= ATH9K_RX_FILTER_PHYRADAR |
1259 ATH9K_RX_FILTER_PHYERR;
1260 ath9k_hw_setrxfilter(ah, rxfilter);
1261 ath_dbg(common, DFS, "DFS enabled at freq %d\n",
1262 curchan->center_freq);
1264 /* perform spectral scan if requested. */
1266 sc->spectral_mode == SPECTRAL_CHANSCAN)
1267 ath9k_spectral_scan_trigger(hw);
1271 if (changed & IEEE80211_CONF_CHANGE_POWER) {
1272 ath_dbg(common, CONFIG, "Set power: %d\n", conf->power_level);
1273 sc->config.txpowlimit = 2 * conf->power_level;
1274 ath9k_cmn_update_txpow(ah, sc->curtxpow,
1275 sc->config.txpowlimit, &sc->curtxpow);
1278 mutex_unlock(&sc->mutex);
1279 ath9k_ps_restore(sc);
1284 #define SUPPORTED_FILTERS \
1285 (FIF_PROMISC_IN_BSS | \
1290 FIF_BCN_PRBRESP_PROMISC | \
1294 /* FIXME: sc->sc_full_reset ? */
1295 static void ath9k_configure_filter(struct ieee80211_hw *hw,
1296 unsigned int changed_flags,
1297 unsigned int *total_flags,
1300 struct ath_softc *sc = hw->priv;
1303 changed_flags &= SUPPORTED_FILTERS;
1304 *total_flags &= SUPPORTED_FILTERS;
1306 sc->rx.rxfilter = *total_flags;
1307 ath9k_ps_wakeup(sc);
1308 rfilt = ath_calcrxfilter(sc);
1309 ath9k_hw_setrxfilter(sc->sc_ah, rfilt);
1310 ath9k_ps_restore(sc);
1312 ath_dbg(ath9k_hw_common(sc->sc_ah), CONFIG, "Set HW RX filter: 0x%x\n",
1316 static int ath9k_sta_add(struct ieee80211_hw *hw,
1317 struct ieee80211_vif *vif,
1318 struct ieee80211_sta *sta)
1320 struct ath_softc *sc = hw->priv;
1321 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1322 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1323 struct ieee80211_key_conf ps_key = { };
1325 ath_node_attach(sc, sta, vif);
1327 if (vif->type != NL80211_IFTYPE_AP &&
1328 vif->type != NL80211_IFTYPE_AP_VLAN)
1331 an->ps_key = ath_key_config(common, vif, sta, &ps_key);
1336 static void ath9k_del_ps_key(struct ath_softc *sc,
1337 struct ieee80211_vif *vif,
1338 struct ieee80211_sta *sta)
1340 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1341 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1342 struct ieee80211_key_conf ps_key = { .hw_key_idx = an->ps_key };
1347 ath_key_delete(common, &ps_key);
1350 static int ath9k_sta_remove(struct ieee80211_hw *hw,
1351 struct ieee80211_vif *vif,
1352 struct ieee80211_sta *sta)
1354 struct ath_softc *sc = hw->priv;
1356 ath9k_del_ps_key(sc, vif, sta);
1357 ath_node_detach(sc, sta);
1362 static void ath9k_sta_notify(struct ieee80211_hw *hw,
1363 struct ieee80211_vif *vif,
1364 enum sta_notify_cmd cmd,
1365 struct ieee80211_sta *sta)
1367 struct ath_softc *sc = hw->priv;
1368 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1370 if (!sta->ht_cap.ht_supported)
1374 case STA_NOTIFY_SLEEP:
1375 an->sleeping = true;
1376 ath_tx_aggr_sleep(sta, sc, an);
1378 case STA_NOTIFY_AWAKE:
1379 an->sleeping = false;
1380 ath_tx_aggr_wakeup(sc, an);
1385 static int ath9k_conf_tx(struct ieee80211_hw *hw,
1386 struct ieee80211_vif *vif, u16 queue,
1387 const struct ieee80211_tx_queue_params *params)
1389 struct ath_softc *sc = hw->priv;
1390 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1391 struct ath_txq *txq;
1392 struct ath9k_tx_queue_info qi;
1395 if (queue >= IEEE80211_NUM_ACS)
1398 txq = sc->tx.txq_map[queue];
1400 ath9k_ps_wakeup(sc);
1401 mutex_lock(&sc->mutex);
1403 memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
1405 qi.tqi_aifs = params->aifs;
1406 qi.tqi_cwmin = params->cw_min;
1407 qi.tqi_cwmax = params->cw_max;
1408 qi.tqi_burstTime = params->txop * 32;
1410 ath_dbg(common, CONFIG,
1411 "Configure tx [queue/halq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
1412 queue, txq->axq_qnum, params->aifs, params->cw_min,
1413 params->cw_max, params->txop);
1415 ath_update_max_aggr_framelen(sc, queue, qi.tqi_burstTime);
1416 ret = ath_txq_update(sc, txq->axq_qnum, &qi);
1418 ath_err(common, "TXQ Update failed\n");
1420 mutex_unlock(&sc->mutex);
1421 ath9k_ps_restore(sc);
1426 static int ath9k_set_key(struct ieee80211_hw *hw,
1427 enum set_key_cmd cmd,
1428 struct ieee80211_vif *vif,
1429 struct ieee80211_sta *sta,
1430 struct ieee80211_key_conf *key)
1432 struct ath_softc *sc = hw->priv;
1433 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1436 if (ath9k_modparam_nohwcrypt)
1439 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1440 vif->type == NL80211_IFTYPE_MESH_POINT) &&
1441 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
1442 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
1443 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
1445 * For now, disable hw crypto for the RSN IBSS group keys. This
1446 * could be optimized in the future to use a modified key cache
1447 * design to support per-STA RX GTK, but until that gets
1448 * implemented, use of software crypto for group addressed
1449 * frames is a acceptable to allow RSN IBSS to be used.
1454 mutex_lock(&sc->mutex);
1455 ath9k_ps_wakeup(sc);
1456 ath_dbg(common, CONFIG, "Set HW Key\n");
1461 ath9k_del_ps_key(sc, vif, sta);
1463 ret = ath_key_config(common, vif, sta, key);
1465 key->hw_key_idx = ret;
1466 /* push IV and Michael MIC generation to stack */
1467 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1468 if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
1469 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1470 if (sc->sc_ah->sw_mgmt_crypto &&
1471 key->cipher == WLAN_CIPHER_SUITE_CCMP)
1472 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
1477 ath_key_delete(common, key);
1483 ath9k_ps_restore(sc);
1484 mutex_unlock(&sc->mutex);
1489 static void ath9k_set_assoc_state(struct ath_softc *sc,
1490 struct ieee80211_vif *vif)
1492 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1493 struct ath_vif *avp = (void *)vif->drv_priv;
1494 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1495 unsigned long flags;
1497 set_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1498 avp->primary_sta_vif = true;
1501 * Set the AID, BSSID and do beacon-sync only when
1502 * the HW opmode is STATION.
1504 * But the primary bit is set above in any case.
1506 if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
1509 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1510 common->curaid = bss_conf->aid;
1511 ath9k_hw_write_associd(sc->sc_ah);
1513 sc->last_rssi = ATH_RSSI_DUMMY_MARKER;
1514 sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
1516 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1517 sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
1518 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1520 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1521 ath9k_mci_update_wlan_channels(sc, false);
1523 ath_dbg(common, CONFIG,
1524 "Primary Station interface: %pM, BSSID: %pM\n",
1525 vif->addr, common->curbssid);
1528 static void ath9k_bss_assoc_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
1530 struct ath_softc *sc = data;
1531 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1533 if (test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags))
1536 if (bss_conf->assoc)
1537 ath9k_set_assoc_state(sc, vif);
1540 static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
1541 struct ieee80211_vif *vif,
1542 struct ieee80211_bss_conf *bss_conf,
1546 (BSS_CHANGED_ASSOC | \
1547 BSS_CHANGED_IBSS | \
1548 BSS_CHANGED_BEACON_ENABLED)
1550 struct ath_softc *sc = hw->priv;
1551 struct ath_hw *ah = sc->sc_ah;
1552 struct ath_common *common = ath9k_hw_common(ah);
1553 struct ath_vif *avp = (void *)vif->drv_priv;
1556 ath9k_ps_wakeup(sc);
1557 mutex_lock(&sc->mutex);
1559 if (changed & BSS_CHANGED_ASSOC) {
1560 ath_dbg(common, CONFIG, "BSSID %pM Changed ASSOC %d\n",
1561 bss_conf->bssid, bss_conf->assoc);
1563 if (avp->primary_sta_vif && !bss_conf->assoc) {
1564 clear_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1565 avp->primary_sta_vif = false;
1567 if (ah->opmode == NL80211_IFTYPE_STATION)
1568 clear_bit(SC_OP_BEACONS, &sc->sc_flags);
1571 ieee80211_iterate_active_interfaces_atomic(
1572 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1573 ath9k_bss_assoc_iter, sc);
1575 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags) &&
1576 ah->opmode == NL80211_IFTYPE_STATION) {
1577 memset(common->curbssid, 0, ETH_ALEN);
1579 ath9k_hw_write_associd(sc->sc_ah);
1580 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1581 ath9k_mci_update_wlan_channels(sc, true);
1585 if (changed & BSS_CHANGED_IBSS) {
1586 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1587 common->curaid = bss_conf->aid;
1588 ath9k_hw_write_associd(sc->sc_ah);
1591 if ((changed & BSS_CHANGED_BEACON_ENABLED) ||
1592 (changed & BSS_CHANGED_BEACON_INT)) {
1593 if (ah->opmode == NL80211_IFTYPE_AP &&
1594 bss_conf->enable_beacon)
1595 ath9k_set_tsfadjust(sc, vif);
1596 if (ath9k_allow_beacon_config(sc, vif))
1597 ath9k_beacon_config(sc, vif, changed);
1600 if (changed & BSS_CHANGED_ERP_SLOT) {
1601 if (bss_conf->use_short_slot)
1605 if (vif->type == NL80211_IFTYPE_AP) {
1607 * Defer update, so that connected stations can adjust
1608 * their settings at the same time.
1609 * See beacon.c for more details
1611 sc->beacon.slottime = slottime;
1612 sc->beacon.updateslot = UPDATE;
1614 ah->slottime = slottime;
1615 ath9k_hw_init_global_settings(ah);
1619 if (changed & CHECK_ANI)
1622 mutex_unlock(&sc->mutex);
1623 ath9k_ps_restore(sc);
1628 static u64 ath9k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1630 struct ath_softc *sc = hw->priv;
1633 mutex_lock(&sc->mutex);
1634 ath9k_ps_wakeup(sc);
1635 tsf = ath9k_hw_gettsf64(sc->sc_ah);
1636 ath9k_ps_restore(sc);
1637 mutex_unlock(&sc->mutex);
1642 static void ath9k_set_tsf(struct ieee80211_hw *hw,
1643 struct ieee80211_vif *vif,
1646 struct ath_softc *sc = hw->priv;
1648 mutex_lock(&sc->mutex);
1649 ath9k_ps_wakeup(sc);
1650 ath9k_hw_settsf64(sc->sc_ah, tsf);
1651 ath9k_ps_restore(sc);
1652 mutex_unlock(&sc->mutex);
1655 static void ath9k_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1657 struct ath_softc *sc = hw->priv;
1659 mutex_lock(&sc->mutex);
1661 ath9k_ps_wakeup(sc);
1662 ath9k_hw_reset_tsf(sc->sc_ah);
1663 ath9k_ps_restore(sc);
1665 mutex_unlock(&sc->mutex);
1668 static int ath9k_ampdu_action(struct ieee80211_hw *hw,
1669 struct ieee80211_vif *vif,
1670 enum ieee80211_ampdu_mlme_action action,
1671 struct ieee80211_sta *sta,
1672 u16 tid, u16 *ssn, u8 buf_size)
1674 struct ath_softc *sc = hw->priv;
1680 case IEEE80211_AMPDU_RX_START:
1682 case IEEE80211_AMPDU_RX_STOP:
1684 case IEEE80211_AMPDU_TX_START:
1685 ath9k_ps_wakeup(sc);
1686 ret = ath_tx_aggr_start(sc, sta, tid, ssn);
1688 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1689 ath9k_ps_restore(sc);
1691 case IEEE80211_AMPDU_TX_STOP_CONT:
1692 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1693 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1694 ath9k_ps_wakeup(sc);
1695 ath_tx_aggr_stop(sc, sta, tid);
1696 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1697 ath9k_ps_restore(sc);
1699 case IEEE80211_AMPDU_TX_OPERATIONAL:
1700 ath9k_ps_wakeup(sc);
1701 ath_tx_aggr_resume(sc, sta, tid);
1702 ath9k_ps_restore(sc);
1705 ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n");
1713 static int ath9k_get_survey(struct ieee80211_hw *hw, int idx,
1714 struct survey_info *survey)
1716 struct ath_softc *sc = hw->priv;
1717 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1718 struct ieee80211_supported_band *sband;
1719 struct ieee80211_channel *chan;
1720 unsigned long flags;
1723 spin_lock_irqsave(&common->cc_lock, flags);
1725 ath_update_survey_stats(sc);
1727 sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
1728 if (sband && idx >= sband->n_channels) {
1729 idx -= sband->n_channels;
1734 sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
1736 if (!sband || idx >= sband->n_channels) {
1737 spin_unlock_irqrestore(&common->cc_lock, flags);
1741 chan = &sband->channels[idx];
1742 pos = chan->hw_value;
1743 memcpy(survey, &sc->survey[pos], sizeof(*survey));
1744 survey->channel = chan;
1745 spin_unlock_irqrestore(&common->cc_lock, flags);
1750 static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
1752 struct ath_softc *sc = hw->priv;
1753 struct ath_hw *ah = sc->sc_ah;
1755 mutex_lock(&sc->mutex);
1756 ah->coverage_class = coverage_class;
1758 ath9k_ps_wakeup(sc);
1759 ath9k_hw_init_global_settings(ah);
1760 ath9k_ps_restore(sc);
1762 mutex_unlock(&sc->mutex);
1765 static void ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1767 struct ath_softc *sc = hw->priv;
1768 struct ath_hw *ah = sc->sc_ah;
1769 struct ath_common *common = ath9k_hw_common(ah);
1770 int timeout = 200; /* ms */
1774 mutex_lock(&sc->mutex);
1775 cancel_delayed_work_sync(&sc->tx_complete_work);
1777 if (ah->ah_flags & AH_UNPLUGGED) {
1778 ath_dbg(common, ANY, "Device has been unplugged!\n");
1779 mutex_unlock(&sc->mutex);
1783 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
1784 ath_dbg(common, ANY, "Device not present\n");
1785 mutex_unlock(&sc->mutex);
1789 for (j = 0; j < timeout; j++) {
1793 usleep_range(1000, 2000);
1795 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1796 if (!ATH_TXQ_SETUP(sc, i))
1799 npend = ath9k_has_pending_frames(sc, &sc->tx.txq[i]);
1810 ath9k_ps_wakeup(sc);
1811 spin_lock_bh(&sc->sc_pcu_lock);
1812 drain_txq = ath_drain_all_txq(sc);
1813 spin_unlock_bh(&sc->sc_pcu_lock);
1818 ath9k_ps_restore(sc);
1819 ieee80211_wake_queues(hw);
1822 ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
1823 mutex_unlock(&sc->mutex);
1826 static bool ath9k_tx_frames_pending(struct ieee80211_hw *hw)
1828 struct ath_softc *sc = hw->priv;
1831 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1832 if (!ATH_TXQ_SETUP(sc, i))
1835 if (ath9k_has_pending_frames(sc, &sc->tx.txq[i]))
1841 static int ath9k_tx_last_beacon(struct ieee80211_hw *hw)
1843 struct ath_softc *sc = hw->priv;
1844 struct ath_hw *ah = sc->sc_ah;
1845 struct ieee80211_vif *vif;
1846 struct ath_vif *avp;
1848 struct ath_tx_status ts;
1849 bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
1852 vif = sc->beacon.bslot[0];
1856 if (!vif->bss_conf.enable_beacon)
1859 avp = (void *)vif->drv_priv;
1861 if (!sc->beacon.tx_processed && !edma) {
1862 tasklet_disable(&sc->bcon_tasklet);
1865 if (!bf || !bf->bf_mpdu)
1868 status = ath9k_hw_txprocdesc(ah, bf->bf_desc, &ts);
1869 if (status == -EINPROGRESS)
1872 sc->beacon.tx_processed = true;
1873 sc->beacon.tx_last = !(ts.ts_status & ATH9K_TXERR_MASK);
1876 tasklet_enable(&sc->bcon_tasklet);
1879 return sc->beacon.tx_last;
1882 static int ath9k_get_stats(struct ieee80211_hw *hw,
1883 struct ieee80211_low_level_stats *stats)
1885 struct ath_softc *sc = hw->priv;
1886 struct ath_hw *ah = sc->sc_ah;
1887 struct ath9k_mib_stats *mib_stats = &ah->ah_mibStats;
1889 stats->dot11ACKFailureCount = mib_stats->ackrcv_bad;
1890 stats->dot11RTSFailureCount = mib_stats->rts_bad;
1891 stats->dot11FCSErrorCount = mib_stats->fcs_bad;
1892 stats->dot11RTSSuccessCount = mib_stats->rts_good;
1896 static u32 fill_chainmask(u32 cap, u32 new)
1901 for (i = 0; cap && new; i++, cap >>= 1) {
1902 if (!(cap & BIT(0)))
1914 static bool validate_antenna_mask(struct ath_hw *ah, u32 val)
1916 if (AR_SREV_9300_20_OR_LATER(ah))
1919 switch (val & 0x7) {
1925 return (ah->caps.rx_chainmask == 1);
1931 static int ath9k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
1933 struct ath_softc *sc = hw->priv;
1934 struct ath_hw *ah = sc->sc_ah;
1936 if (ah->caps.rx_chainmask != 1)
1939 if (!validate_antenna_mask(ah, rx_ant) || !tx_ant)
1942 sc->ant_rx = rx_ant;
1943 sc->ant_tx = tx_ant;
1945 if (ah->caps.rx_chainmask == 1)
1948 /* AR9100 runs into calibration issues if not all rx chains are enabled */
1949 if (AR_SREV_9100(ah))
1950 ah->rxchainmask = 0x7;
1952 ah->rxchainmask = fill_chainmask(ah->caps.rx_chainmask, rx_ant);
1954 ah->txchainmask = fill_chainmask(ah->caps.tx_chainmask, tx_ant);
1955 ath9k_reload_chainmask_settings(sc);
1960 static int ath9k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
1962 struct ath_softc *sc = hw->priv;
1964 *tx_ant = sc->ant_tx;
1965 *rx_ant = sc->ant_rx;
1969 #ifdef CONFIG_PM_SLEEP
1971 static void ath9k_wow_map_triggers(struct ath_softc *sc,
1972 struct cfg80211_wowlan *wowlan,
1975 if (wowlan->disconnect)
1976 *wow_triggers |= AH_WOW_LINK_CHANGE |
1978 if (wowlan->magic_pkt)
1979 *wow_triggers |= AH_WOW_MAGIC_PATTERN_EN;
1981 if (wowlan->n_patterns)
1982 *wow_triggers |= AH_WOW_USER_PATTERN_EN;
1984 sc->wow_enabled = *wow_triggers;
1988 static void ath9k_wow_add_disassoc_deauth_pattern(struct ath_softc *sc)
1990 struct ath_hw *ah = sc->sc_ah;
1991 struct ath_common *common = ath9k_hw_common(ah);
1992 struct ath9k_hw_capabilities *pcaps = &ah->caps;
1993 int pattern_count = 0;
1995 u8 dis_deauth_pattern[MAX_PATTERN_SIZE];
1996 u8 dis_deauth_mask[MAX_PATTERN_SIZE];
1998 memset(dis_deauth_pattern, 0, MAX_PATTERN_SIZE);
1999 memset(dis_deauth_mask, 0, MAX_PATTERN_SIZE);
2002 * Create Dissassociate / Deauthenticate packet filter
2004 * 2 bytes 2 byte 6 bytes 6 bytes 6 bytes
2005 * +--------------+----------+---------+--------+--------+----
2006 * + Frame Control+ Duration + DA + SA + BSSID +
2007 * +--------------+----------+---------+--------+--------+----
2009 * The above is the management frame format for disassociate/
2010 * deauthenticate pattern, from this we need to match the first byte
2011 * of 'Frame Control' and DA, SA, and BSSID fields
2012 * (skipping 2nd byte of FC and Duration feild.
2014 * Disassociate pattern
2015 * --------------------
2016 * Frame control = 00 00 1010
2017 * DA, SA, BSSID = x:x:x:x:x:x
2018 * Pattern will be A0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2019 * | x:x:x:x:x:x -- 22 bytes
2021 * Deauthenticate pattern
2022 * ----------------------
2023 * Frame control = 00 00 1100
2024 * DA, SA, BSSID = x:x:x:x:x:x
2025 * Pattern will be C0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2026 * | x:x:x:x:x:x -- 22 bytes
2029 /* Create Disassociate Pattern first */
2033 /* Fill out the mask with all FF's */
2035 for (i = 0; i < MAX_PATTERN_MASK_SIZE; i++)
2036 dis_deauth_mask[i] = 0xff;
2038 /* copy the first byte of frame control field */
2039 dis_deauth_pattern[byte_cnt] = 0xa0;
2042 /* skip 2nd byte of frame control and Duration field */
2046 * need not match the destination mac address, it can be a broadcast
2047 * mac address or an unicast to this station
2051 /* copy the source mac address */
2052 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2056 /* copy the bssid, its same as the source mac address */
2058 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2060 /* Create Disassociate pattern mask */
2062 if (pcaps->hw_caps & ATH9K_HW_WOW_PATTERN_MATCH_EXACT) {
2064 if (pcaps->hw_caps & ATH9K_HW_WOW_PATTERN_MATCH_DWORD) {
2066 * for AR9280, because of hardware limitation, the
2067 * first 4 bytes have to be matched for all patterns.
2068 * the mask for disassociation and de-auth pattern
2069 * matching need to enable the first 4 bytes.
2070 * also the duration field needs to be filled.
2072 dis_deauth_mask[0] = 0xf0;
2075 * fill in duration field
2076 FIXME: what is the exact value ?
2078 dis_deauth_pattern[2] = 0xff;
2079 dis_deauth_pattern[3] = 0xff;
2081 dis_deauth_mask[0] = 0xfe;
2084 dis_deauth_mask[1] = 0x03;
2085 dis_deauth_mask[2] = 0xc0;
2087 dis_deauth_mask[0] = 0xef;
2088 dis_deauth_mask[1] = 0x3f;
2089 dis_deauth_mask[2] = 0x00;
2090 dis_deauth_mask[3] = 0xfc;
2093 ath_dbg(common, WOW, "Adding disassoc/deauth patterns for WoW\n");
2095 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2096 pattern_count, byte_cnt);
2100 * for de-authenticate pattern, only the first byte of the frame
2101 * control field gets changed from 0xA0 to 0xC0
2103 dis_deauth_pattern[0] = 0xC0;
2105 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2106 pattern_count, byte_cnt);
2110 static void ath9k_wow_add_pattern(struct ath_softc *sc,
2111 struct cfg80211_wowlan *wowlan)
2113 struct ath_hw *ah = sc->sc_ah;
2114 struct ath9k_wow_pattern *wow_pattern = NULL;
2115 struct cfg80211_wowlan_trig_pkt_pattern *patterns = wowlan->patterns;
2119 if (!wowlan->n_patterns)
2123 * Add the new user configured patterns
2125 for (i = 0; i < wowlan->n_patterns; i++) {
2127 wow_pattern = kzalloc(sizeof(*wow_pattern), GFP_KERNEL);
2133 * TODO: convert the generic user space pattern to
2134 * appropriate chip specific/802.11 pattern.
2137 mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
2138 memset(wow_pattern->pattern_bytes, 0, MAX_PATTERN_SIZE);
2139 memset(wow_pattern->mask_bytes, 0, MAX_PATTERN_SIZE);
2140 memcpy(wow_pattern->pattern_bytes, patterns[i].pattern,
2141 patterns[i].pattern_len);
2142 memcpy(wow_pattern->mask_bytes, patterns[i].mask, mask_len);
2143 wow_pattern->pattern_len = patterns[i].pattern_len;
2146 * just need to take care of deauth and disssoc pattern,
2147 * make sure we don't overwrite them.
2150 ath9k_hw_wow_apply_pattern(ah, wow_pattern->pattern_bytes,
2151 wow_pattern->mask_bytes,
2153 wow_pattern->pattern_len);
2160 static int ath9k_suspend(struct ieee80211_hw *hw,
2161 struct cfg80211_wowlan *wowlan)
2163 struct ath_softc *sc = hw->priv;
2164 struct ath_hw *ah = sc->sc_ah;
2165 struct ath_common *common = ath9k_hw_common(ah);
2166 u32 wow_triggers_enabled = 0;
2169 mutex_lock(&sc->mutex);
2171 ath_cancel_work(sc);
2173 del_timer_sync(&sc->rx_poll_timer);
2175 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
2176 ath_dbg(common, ANY, "Device not present\n");
2181 if (WARN_ON(!wowlan)) {
2182 ath_dbg(common, WOW, "None of the WoW triggers enabled\n");
2187 if (!device_can_wakeup(sc->dev)) {
2188 ath_dbg(common, WOW, "device_can_wakeup failed, WoW is not enabled\n");
2194 * none of the sta vifs are associated
2195 * and we are not currently handling multivif
2196 * cases, for instance we have to seperately
2197 * configure 'keep alive frame' for each
2201 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
2202 ath_dbg(common, WOW, "None of the STA vifs are associated\n");
2207 if (sc->nvifs > 1) {
2208 ath_dbg(common, WOW, "WoW for multivif is not yet supported\n");
2213 ath9k_wow_map_triggers(sc, wowlan, &wow_triggers_enabled);
2215 ath_dbg(common, WOW, "WoW triggers enabled 0x%x\n",
2216 wow_triggers_enabled);
2218 ath9k_ps_wakeup(sc);
2220 ath9k_stop_btcoex(sc);
2223 * Enable wake up on recieving disassoc/deauth
2226 ath9k_wow_add_disassoc_deauth_pattern(sc);
2228 if (wow_triggers_enabled & AH_WOW_USER_PATTERN_EN)
2229 ath9k_wow_add_pattern(sc, wowlan);
2231 spin_lock_bh(&sc->sc_pcu_lock);
2233 * To avoid false wake, we enable beacon miss interrupt only
2234 * when we go to sleep. We save the current interrupt mask
2235 * so we can restore it after the system wakes up
2237 sc->wow_intr_before_sleep = ah->imask;
2238 ah->imask &= ~ATH9K_INT_GLOBAL;
2239 ath9k_hw_disable_interrupts(ah);
2240 ah->imask = ATH9K_INT_BMISS | ATH9K_INT_GLOBAL;
2241 ath9k_hw_set_interrupts(ah);
2242 ath9k_hw_enable_interrupts(ah);
2244 spin_unlock_bh(&sc->sc_pcu_lock);
2247 * we can now sync irq and kill any running tasklets, since we already
2248 * disabled interrupts and not holding a spin lock
2250 synchronize_irq(sc->irq);
2251 tasklet_kill(&sc->intr_tq);
2253 ath9k_hw_wow_enable(ah, wow_triggers_enabled);
2255 ath9k_ps_restore(sc);
2256 ath_dbg(common, ANY, "WoW enabled in ath9k\n");
2257 atomic_inc(&sc->wow_sleep_proc_intr);
2260 mutex_unlock(&sc->mutex);
2264 static int ath9k_resume(struct ieee80211_hw *hw)
2266 struct ath_softc *sc = hw->priv;
2267 struct ath_hw *ah = sc->sc_ah;
2268 struct ath_common *common = ath9k_hw_common(ah);
2271 mutex_lock(&sc->mutex);
2273 ath9k_ps_wakeup(sc);
2275 spin_lock_bh(&sc->sc_pcu_lock);
2277 ath9k_hw_disable_interrupts(ah);
2278 ah->imask = sc->wow_intr_before_sleep;
2279 ath9k_hw_set_interrupts(ah);
2280 ath9k_hw_enable_interrupts(ah);
2282 spin_unlock_bh(&sc->sc_pcu_lock);
2284 wow_status = ath9k_hw_wow_wakeup(ah);
2286 if (atomic_read(&sc->wow_got_bmiss_intr) == 0) {
2288 * some devices may not pick beacon miss
2289 * as the reason they woke up so we add
2290 * that here for that shortcoming.
2292 wow_status |= AH_WOW_BEACON_MISS;
2293 atomic_dec(&sc->wow_got_bmiss_intr);
2294 ath_dbg(common, ANY, "Beacon miss interrupt picked up during WoW sleep\n");
2297 atomic_dec(&sc->wow_sleep_proc_intr);
2300 ath_dbg(common, ANY, "Waking up due to WoW triggers %s with WoW status = %x\n",
2301 ath9k_hw_wow_event_to_string(wow_status), wow_status);
2304 ath_restart_work(sc);
2305 ath9k_start_btcoex(sc);
2307 ath9k_ps_restore(sc);
2308 mutex_unlock(&sc->mutex);
2313 static void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2315 struct ath_softc *sc = hw->priv;
2317 mutex_lock(&sc->mutex);
2318 device_init_wakeup(sc->dev, 1);
2319 device_set_wakeup_enable(sc->dev, enabled);
2320 mutex_unlock(&sc->mutex);
2324 static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
2326 struct ath_softc *sc = hw->priv;
2331 static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
2333 struct ath_softc *sc = hw->priv;
2338 struct ieee80211_ops ath9k_ops = {
2340 .start = ath9k_start,
2342 .add_interface = ath9k_add_interface,
2343 .change_interface = ath9k_change_interface,
2344 .remove_interface = ath9k_remove_interface,
2345 .config = ath9k_config,
2346 .configure_filter = ath9k_configure_filter,
2347 .sta_add = ath9k_sta_add,
2348 .sta_remove = ath9k_sta_remove,
2349 .sta_notify = ath9k_sta_notify,
2350 .conf_tx = ath9k_conf_tx,
2351 .bss_info_changed = ath9k_bss_info_changed,
2352 .set_key = ath9k_set_key,
2353 .get_tsf = ath9k_get_tsf,
2354 .set_tsf = ath9k_set_tsf,
2355 .reset_tsf = ath9k_reset_tsf,
2356 .ampdu_action = ath9k_ampdu_action,
2357 .get_survey = ath9k_get_survey,
2358 .rfkill_poll = ath9k_rfkill_poll_state,
2359 .set_coverage_class = ath9k_set_coverage_class,
2360 .flush = ath9k_flush,
2361 .tx_frames_pending = ath9k_tx_frames_pending,
2362 .tx_last_beacon = ath9k_tx_last_beacon,
2363 .get_stats = ath9k_get_stats,
2364 .set_antenna = ath9k_set_antenna,
2365 .get_antenna = ath9k_get_antenna,
2367 #ifdef CONFIG_PM_SLEEP
2368 .suspend = ath9k_suspend,
2369 .resume = ath9k_resume,
2370 .set_wakeup = ath9k_set_wakeup,
2373 #ifdef CONFIG_ATH9K_DEBUGFS
2374 .get_et_sset_count = ath9k_get_et_sset_count,
2375 .get_et_stats = ath9k_get_et_stats,
2376 .get_et_strings = ath9k_get_et_strings,
2379 #if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_DEBUGFS)
2380 .sta_add_debugfs = ath9k_sta_add_debugfs,
2381 .sta_remove_debugfs = ath9k_sta_remove_debugfs,
2383 .sw_scan_start = ath9k_sw_scan_start,
2384 .sw_scan_complete = ath9k_sw_scan_complete,