2 * Copyright (c) 2008-2011 Atheros Communications Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #include <linux/nl80211.h>
18 #include <linux/delay.h>
22 static void ath9k_set_assoc_state(struct ath_softc *sc,
23 struct ieee80211_vif *vif);
25 u8 ath9k_parse_mpdudensity(u8 mpdudensity)
28 * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
29 * 0 for no restriction
38 switch (mpdudensity) {
44 /* Our lower layer calculations limit our precision to
60 static bool ath9k_has_pending_frames(struct ath_softc *sc, struct ath_txq *txq)
64 spin_lock_bh(&txq->axq_lock);
66 if (txq->axq_depth || !list_empty(&txq->axq_acq))
69 spin_unlock_bh(&txq->axq_lock);
73 static bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode)
78 spin_lock_irqsave(&sc->sc_pm_lock, flags);
79 ret = ath9k_hw_setpower(sc->sc_ah, mode);
80 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
85 void ath9k_ps_wakeup(struct ath_softc *sc)
87 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
89 enum ath9k_power_mode power_mode;
91 spin_lock_irqsave(&sc->sc_pm_lock, flags);
92 if (++sc->ps_usecount != 1)
95 power_mode = sc->sc_ah->power_mode;
96 ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE);
99 * While the hardware is asleep, the cycle counters contain no
100 * useful data. Better clear them now so that they don't mess up
101 * survey data results.
103 if (power_mode != ATH9K_PM_AWAKE) {
104 spin_lock(&common->cc_lock);
105 ath_hw_cycle_counters_update(common);
106 memset(&common->cc_survey, 0, sizeof(common->cc_survey));
107 memset(&common->cc_ani, 0, sizeof(common->cc_ani));
108 spin_unlock(&common->cc_lock);
112 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
115 void ath9k_ps_restore(struct ath_softc *sc)
117 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
118 enum ath9k_power_mode mode;
122 spin_lock_irqsave(&sc->sc_pm_lock, flags);
123 if (--sc->ps_usecount != 0)
127 ath9k_hw_setrxabort(sc->sc_ah, 1);
128 ath9k_hw_stopdmarecv(sc->sc_ah, &reset);
129 mode = ATH9K_PM_FULL_SLEEP;
130 } else if (sc->ps_enabled &&
131 !(sc->ps_flags & (PS_WAIT_FOR_BEACON |
133 PS_WAIT_FOR_PSPOLL_DATA |
136 mode = ATH9K_PM_NETWORK_SLEEP;
137 if (ath9k_hw_btcoex_is_enabled(sc->sc_ah))
138 ath9k_btcoex_stop_gen_timer(sc);
143 spin_lock(&common->cc_lock);
144 ath_hw_cycle_counters_update(common);
145 spin_unlock(&common->cc_lock);
147 ath9k_hw_setpower(sc->sc_ah, mode);
150 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
153 static void __ath_cancel_work(struct ath_softc *sc)
155 cancel_work_sync(&sc->paprd_work);
156 cancel_work_sync(&sc->hw_check_work);
157 cancel_delayed_work_sync(&sc->tx_complete_work);
158 cancel_delayed_work_sync(&sc->hw_pll_work);
160 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
161 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
162 cancel_work_sync(&sc->mci_work);
166 static void ath_cancel_work(struct ath_softc *sc)
168 __ath_cancel_work(sc);
169 cancel_work_sync(&sc->hw_reset_work);
172 static void ath_restart_work(struct ath_softc *sc)
174 ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
176 if (AR_SREV_9340(sc->sc_ah) || AR_SREV_9330(sc->sc_ah))
177 ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work,
178 msecs_to_jiffies(ATH_PLL_WORK_INTERVAL));
180 ath_start_rx_poll(sc, 3);
184 static bool ath_prepare_reset(struct ath_softc *sc)
186 struct ath_hw *ah = sc->sc_ah;
189 ieee80211_stop_queues(sc->hw);
191 sc->hw_busy_count = 0;
193 del_timer_sync(&sc->rx_poll_timer);
195 ath9k_debug_samp_bb_mac(sc);
196 ath9k_hw_disable_interrupts(ah);
198 if (!ath_drain_all_txq(sc))
201 if (!ath_stoprecv(sc))
207 static bool ath_complete_reset(struct ath_softc *sc, bool start)
209 struct ath_hw *ah = sc->sc_ah;
210 struct ath_common *common = ath9k_hw_common(ah);
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 if (ah->opmode == NL80211_IFTYPE_STATION &&
231 test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
232 spin_lock_irqsave(&sc->sc_pm_lock, flags);
233 sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
234 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
236 ath9k_set_beacon(sc);
239 ath_restart_work(sc);
241 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
242 if (!ATH_TXQ_SETUP(sc, i))
245 spin_lock_bh(&sc->tx.txq[i].axq_lock);
246 ath_txq_schedule(sc, &sc->tx.txq[i]);
247 spin_unlock_bh(&sc->tx.txq[i].axq_lock);
251 if ((ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) && sc->ant_rx != 3)
252 ath_ant_comb_update(sc);
254 ieee80211_wake_queues(sc->hw);
259 static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan)
261 struct ath_hw *ah = sc->sc_ah;
262 struct ath_common *common = ath9k_hw_common(ah);
263 struct ath9k_hw_cal_data *caldata = NULL;
267 __ath_cancel_work(sc);
269 tasklet_disable(&sc->intr_tq);
270 spin_lock_bh(&sc->sc_pcu_lock);
272 if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) {
274 caldata = &sc->caldata;
282 if (!ath_prepare_reset(sc))
285 ath_dbg(common, CONFIG, "Reset to %u MHz, HT40: %d fastcc: %d\n",
286 hchan->channel, IS_CHAN_HT40(hchan), fastcc);
288 r = ath9k_hw_reset(ah, hchan, caldata, fastcc);
291 "Unable to reset channel, reset status %d\n", r);
293 ath9k_hw_enable_interrupts(ah);
294 ath9k_queue_reset(sc, RESET_TYPE_BB_HANG);
299 if (ath9k_hw_mci_is_enabled(sc->sc_ah) &&
300 (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
301 ath9k_mci_set_txpower(sc, true, false);
303 if (!ath_complete_reset(sc, true))
307 spin_unlock_bh(&sc->sc_pcu_lock);
308 tasklet_enable(&sc->intr_tq);
315 * Set/change channels. If the channel is really being changed, it's done
316 * by reseting the chip. To accomplish this we must first cleanup any pending
317 * DMA, then restart stuff.
319 static int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
320 struct ath9k_channel *hchan)
324 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
327 r = ath_reset_internal(sc, hchan);
332 static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
333 struct ieee80211_vif *vif)
336 an = (struct ath_node *)sta->drv_priv;
342 ath_tx_node_init(sc, an);
344 if (sta->ht_cap.ht_supported) {
345 an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
346 sta->ht_cap.ampdu_factor);
347 an->mpdudensity = ath9k_parse_mpdudensity(sta->ht_cap.ampdu_density);
351 static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
353 struct ath_node *an = (struct ath_node *)sta->drv_priv;
354 ath_tx_node_cleanup(sc, an);
357 void ath9k_tasklet(unsigned long data)
359 struct ath_softc *sc = (struct ath_softc *)data;
360 struct ath_hw *ah = sc->sc_ah;
361 struct ath_common *common = ath9k_hw_common(ah);
362 enum ath_reset_type type;
364 u32 status = sc->intrstatus;
368 spin_lock(&sc->sc_pcu_lock);
370 if ((status & ATH9K_INT_FATAL) ||
371 (status & ATH9K_INT_BB_WATCHDOG)) {
373 if (status & ATH9K_INT_FATAL)
374 type = RESET_TYPE_FATAL_INT;
376 type = RESET_TYPE_BB_WATCHDOG;
378 ath9k_queue_reset(sc, type);
382 spin_lock_irqsave(&sc->sc_pm_lock, flags);
383 if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) {
385 * TSF sync does not look correct; remain awake to sync with
388 ath_dbg(common, PS, "TSFOOR - Sync with next Beacon\n");
389 sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC;
391 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
393 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
394 rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL |
397 rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
399 if (status & rxmask) {
400 /* Check for high priority Rx first */
401 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
402 (status & ATH9K_INT_RXHP))
403 ath_rx_tasklet(sc, 0, true);
405 ath_rx_tasklet(sc, 0, false);
408 if (status & ATH9K_INT_TX) {
409 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
410 ath_tx_edma_tasklet(sc);
415 ath9k_btcoex_handle_interrupt(sc, status);
418 /* re-enable hardware interrupt */
419 ath9k_hw_enable_interrupts(ah);
421 spin_unlock(&sc->sc_pcu_lock);
422 ath9k_ps_restore(sc);
425 irqreturn_t ath_isr(int irq, void *dev)
427 #define SCHED_INTR ( \
429 ATH9K_INT_BB_WATCHDOG | \
439 ATH9K_INT_GENTIMER | \
442 struct ath_softc *sc = dev;
443 struct ath_hw *ah = sc->sc_ah;
444 struct ath_common *common = ath9k_hw_common(ah);
445 enum ath9k_int status;
449 * The hardware is not ready/present, don't
450 * touch anything. Note this can happen early
451 * on if the IRQ is shared.
453 if (test_bit(SC_OP_INVALID, &sc->sc_flags))
456 /* shared irq, not for us */
458 if (!ath9k_hw_intrpend(ah))
461 if (test_bit(SC_OP_HW_RESET, &sc->sc_flags)) {
462 ath9k_hw_kill_interrupts(ah);
467 * Figure out the reason(s) for the interrupt. Note
468 * that the hal returns a pseudo-ISR that may include
469 * bits we haven't explicitly enabled so we mask the
470 * value to insure we only process bits we requested.
472 ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */
473 status &= ah->imask; /* discard unasked-for bits */
476 * If there are no status bits set, then this interrupt was not
477 * for me (should have been caught above).
482 /* Cache the status */
483 sc->intrstatus = status;
485 if (status & SCHED_INTR)
489 * If a FATAL or RXORN interrupt is received, we have to reset the
492 if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) &&
493 !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)))
496 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
497 (status & ATH9K_INT_BB_WATCHDOG)) {
499 spin_lock(&common->cc_lock);
500 ath_hw_cycle_counters_update(common);
501 ar9003_hw_bb_watchdog_dbg_info(ah);
502 spin_unlock(&common->cc_lock);
506 #ifdef CONFIG_PM_SLEEP
507 if (status & ATH9K_INT_BMISS) {
508 if (atomic_read(&sc->wow_sleep_proc_intr) == 0) {
509 ath_dbg(common, ANY, "during WoW we got a BMISS\n");
510 atomic_inc(&sc->wow_got_bmiss_intr);
511 atomic_dec(&sc->wow_sleep_proc_intr);
515 if (status & ATH9K_INT_SWBA)
516 tasklet_schedule(&sc->bcon_tasklet);
518 if (status & ATH9K_INT_TXURN)
519 ath9k_hw_updatetxtriglevel(ah, true);
521 if (status & ATH9K_INT_RXEOL) {
522 ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
523 ath9k_hw_set_interrupts(ah);
526 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
527 if (status & ATH9K_INT_TIM_TIMER) {
528 if (ATH_DBG_WARN_ON_ONCE(sc->ps_idle))
530 /* Clear RxAbort bit so that we can
532 ath9k_setpower(sc, ATH9K_PM_AWAKE);
533 spin_lock(&sc->sc_pm_lock);
534 ath9k_hw_setrxabort(sc->sc_ah, 0);
535 sc->ps_flags |= PS_WAIT_FOR_BEACON;
536 spin_unlock(&sc->sc_pm_lock);
541 ath_debug_stat_interrupt(sc, status);
544 /* turn off every interrupt */
545 ath9k_hw_disable_interrupts(ah);
546 tasklet_schedule(&sc->intr_tq);
554 static int ath_reset(struct ath_softc *sc)
559 r = ath_reset_internal(sc, NULL);
560 ath9k_ps_restore(sc);
565 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type)
567 #ifdef CONFIG_ATH9K_DEBUGFS
568 RESET_STAT_INC(sc, type);
570 set_bit(SC_OP_HW_RESET, &sc->sc_flags);
571 ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
574 void ath_reset_work(struct work_struct *work)
576 struct ath_softc *sc = container_of(work, struct ath_softc, hw_reset_work);
581 /**********************/
582 /* mac80211 callbacks */
583 /**********************/
585 static int ath9k_start(struct ieee80211_hw *hw)
587 struct ath_softc *sc = hw->priv;
588 struct ath_hw *ah = sc->sc_ah;
589 struct ath_common *common = ath9k_hw_common(ah);
590 struct ieee80211_channel *curchan = hw->conf.chandef.chan;
591 struct ath9k_channel *init_channel;
594 ath_dbg(common, CONFIG,
595 "Starting driver with initial channel: %d MHz\n",
596 curchan->center_freq);
599 mutex_lock(&sc->mutex);
601 init_channel = ath9k_cmn_get_curchannel(hw, ah);
603 /* Reset SERDES registers */
604 ath9k_hw_configpcipowersave(ah, false);
607 * The basic interface to setting the hardware in a good
608 * state is ``reset''. On return the hardware is known to
609 * be powered up and with interrupts disabled. This must
610 * be followed by initialization of the appropriate bits
611 * and then setup of the interrupt mask.
613 spin_lock_bh(&sc->sc_pcu_lock);
615 atomic_set(&ah->intr_ref_cnt, -1);
617 r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
620 "Unable to reset hardware; reset status %d (freq %u MHz)\n",
621 r, curchan->center_freq);
622 ah->reset_power_on = false;
625 /* Setup our intr mask. */
626 ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL |
627 ATH9K_INT_RXORN | ATH9K_INT_FATAL |
630 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
631 ah->imask |= ATH9K_INT_RXHP |
633 ATH9K_INT_BB_WATCHDOG;
635 ah->imask |= ATH9K_INT_RX;
637 ah->imask |= ATH9K_INT_GTT;
639 if (ah->caps.hw_caps & ATH9K_HW_CAP_HT)
640 ah->imask |= ATH9K_INT_CST;
644 clear_bit(SC_OP_INVALID, &sc->sc_flags);
645 sc->sc_ah->is_monitoring = false;
647 if (!ath_complete_reset(sc, false))
648 ah->reset_power_on = false;
650 if (ah->led_pin >= 0) {
651 ath9k_hw_cfg_output(ah, ah->led_pin,
652 AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
653 ath9k_hw_set_gpio(ah, ah->led_pin, 0);
657 * Reset key cache to sane defaults (all entries cleared) instead of
658 * semi-random values after suspend/resume.
660 ath9k_cmn_init_crypto(sc->sc_ah);
662 spin_unlock_bh(&sc->sc_pcu_lock);
664 mutex_unlock(&sc->mutex);
666 ath9k_ps_restore(sc);
671 static void ath9k_tx(struct ieee80211_hw *hw,
672 struct ieee80211_tx_control *control,
675 struct ath_softc *sc = hw->priv;
676 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
677 struct ath_tx_control txctl;
678 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
681 if (sc->ps_enabled) {
683 * mac80211 does not set PM field for normal data frames, so we
684 * need to update that based on the current PS mode.
686 if (ieee80211_is_data(hdr->frame_control) &&
687 !ieee80211_is_nullfunc(hdr->frame_control) &&
688 !ieee80211_has_pm(hdr->frame_control)) {
690 "Add PM=1 for a TX frame while in PS mode\n");
691 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
695 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP)) {
697 * We are using PS-Poll and mac80211 can request TX while in
698 * power save mode. Need to wake up hardware for the TX to be
699 * completed and if needed, also for RX of buffered frames.
702 spin_lock_irqsave(&sc->sc_pm_lock, flags);
703 if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
704 ath9k_hw_setrxabort(sc->sc_ah, 0);
705 if (ieee80211_is_pspoll(hdr->frame_control)) {
707 "Sending PS-Poll to pick a buffered frame\n");
708 sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA;
710 ath_dbg(common, PS, "Wake up to complete TX\n");
711 sc->ps_flags |= PS_WAIT_FOR_TX_ACK;
714 * The actual restore operation will happen only after
715 * the ps_flags bit is cleared. We are just dropping
716 * the ps_usecount here.
718 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
719 ath9k_ps_restore(sc);
723 * Cannot tx while the hardware is in full sleep, it first needs a full
724 * chip reset to recover from that
726 if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_FULL_SLEEP)) {
727 ath_err(common, "TX while HW is in FULL_SLEEP mode\n");
731 memset(&txctl, 0, sizeof(struct ath_tx_control));
732 txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)];
733 txctl.sta = control->sta;
735 ath_dbg(common, XMIT, "transmitting packet, skb: %p\n", skb);
737 if (ath_tx_start(hw, skb, &txctl) != 0) {
738 ath_dbg(common, XMIT, "TX failed\n");
739 TX_STAT_INC(txctl.txq->axq_qnum, txfailed);
745 ieee80211_free_txskb(hw, skb);
748 static void ath9k_stop(struct ieee80211_hw *hw)
750 struct ath_softc *sc = hw->priv;
751 struct ath_hw *ah = sc->sc_ah;
752 struct ath_common *common = ath9k_hw_common(ah);
755 mutex_lock(&sc->mutex);
758 del_timer_sync(&sc->rx_poll_timer);
760 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
761 ath_dbg(common, ANY, "Device not present\n");
762 mutex_unlock(&sc->mutex);
766 /* Ensure HW is awake when we try to shut it down. */
769 spin_lock_bh(&sc->sc_pcu_lock);
771 /* prevent tasklets to enable interrupts once we disable them */
772 ah->imask &= ~ATH9K_INT_GLOBAL;
774 /* make sure h/w will not generate any interrupt
775 * before setting the invalid flag. */
776 ath9k_hw_disable_interrupts(ah);
778 spin_unlock_bh(&sc->sc_pcu_lock);
780 /* we can now sync irq and kill any running tasklets, since we already
781 * disabled interrupts and not holding a spin lock */
782 synchronize_irq(sc->irq);
783 tasklet_kill(&sc->intr_tq);
784 tasklet_kill(&sc->bcon_tasklet);
786 prev_idle = sc->ps_idle;
789 spin_lock_bh(&sc->sc_pcu_lock);
791 if (ah->led_pin >= 0) {
792 ath9k_hw_set_gpio(ah, ah->led_pin, 1);
793 ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
796 ath_prepare_reset(sc);
799 dev_kfree_skb_any(sc->rx.frag);
804 ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
806 ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
807 ath9k_hw_phy_disable(ah);
809 ath9k_hw_configpcipowersave(ah, true);
811 spin_unlock_bh(&sc->sc_pcu_lock);
813 ath9k_ps_restore(sc);
815 set_bit(SC_OP_INVALID, &sc->sc_flags);
816 sc->ps_idle = prev_idle;
818 mutex_unlock(&sc->mutex);
820 ath_dbg(common, CONFIG, "Driver halt\n");
823 bool ath9k_uses_beacons(int type)
826 case NL80211_IFTYPE_AP:
827 case NL80211_IFTYPE_ADHOC:
828 case NL80211_IFTYPE_MESH_POINT:
835 static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
837 struct ath9k_vif_iter_data *iter_data = data;
840 if (iter_data->has_hw_macaddr) {
841 for (i = 0; i < ETH_ALEN; i++)
842 iter_data->mask[i] &=
843 ~(iter_data->hw_macaddr[i] ^ mac[i]);
845 memcpy(iter_data->hw_macaddr, mac, ETH_ALEN);
846 iter_data->has_hw_macaddr = true;
850 case NL80211_IFTYPE_AP:
853 case NL80211_IFTYPE_STATION:
854 iter_data->nstations++;
856 case NL80211_IFTYPE_ADHOC:
857 iter_data->nadhocs++;
859 case NL80211_IFTYPE_MESH_POINT:
860 iter_data->nmeshes++;
862 case NL80211_IFTYPE_WDS:
870 static void ath9k_sta_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
872 struct ath_softc *sc = data;
873 struct ath_vif *avp = (void *)vif->drv_priv;
875 if (vif->type != NL80211_IFTYPE_STATION)
878 if (avp->primary_sta_vif)
879 ath9k_set_assoc_state(sc, vif);
882 /* Called with sc->mutex held. */
883 void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
884 struct ieee80211_vif *vif,
885 struct ath9k_vif_iter_data *iter_data)
887 struct ath_softc *sc = hw->priv;
888 struct ath_hw *ah = sc->sc_ah;
889 struct ath_common *common = ath9k_hw_common(ah);
892 * Pick the MAC address of the first interface as the new hardware
893 * MAC address. The hardware will use it together with the BSSID mask
894 * when matching addresses.
896 memset(iter_data, 0, sizeof(*iter_data));
897 memset(&iter_data->mask, 0xff, ETH_ALEN);
900 ath9k_vif_iter(iter_data, vif->addr, vif);
902 /* Get list of all active MAC addresses */
903 ieee80211_iterate_active_interfaces_atomic(
904 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
905 ath9k_vif_iter, iter_data);
907 memcpy(common->macaddr, iter_data->hw_macaddr, ETH_ALEN);
910 /* Called with sc->mutex held. */
911 static void ath9k_calculate_summary_state(struct ieee80211_hw *hw,
912 struct ieee80211_vif *vif)
914 struct ath_softc *sc = hw->priv;
915 struct ath_hw *ah = sc->sc_ah;
916 struct ath_common *common = ath9k_hw_common(ah);
917 struct ath9k_vif_iter_data iter_data;
918 enum nl80211_iftype old_opmode = ah->opmode;
920 ath9k_calculate_iter_data(hw, vif, &iter_data);
922 memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
923 ath_hw_setbssidmask(common);
925 if (iter_data.naps > 0) {
926 ath9k_hw_set_tsfadjust(ah, true);
927 ah->opmode = NL80211_IFTYPE_AP;
929 ath9k_hw_set_tsfadjust(ah, false);
931 if (iter_data.nmeshes)
932 ah->opmode = NL80211_IFTYPE_MESH_POINT;
933 else if (iter_data.nwds)
934 ah->opmode = NL80211_IFTYPE_AP;
935 else if (iter_data.nadhocs)
936 ah->opmode = NL80211_IFTYPE_ADHOC;
938 ah->opmode = NL80211_IFTYPE_STATION;
941 ath9k_hw_setopmode(ah);
943 if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0)
944 ah->imask |= ATH9K_INT_TSFOOR;
946 ah->imask &= ~ATH9K_INT_TSFOOR;
948 ath9k_hw_set_interrupts(ah);
951 * If we are changing the opmode to STATION,
952 * a beacon sync needs to be done.
954 if (ah->opmode == NL80211_IFTYPE_STATION &&
955 old_opmode == NL80211_IFTYPE_AP &&
956 test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
957 ieee80211_iterate_active_interfaces_atomic(
958 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
959 ath9k_sta_vif_iter, sc);
963 static int ath9k_add_interface(struct ieee80211_hw *hw,
964 struct ieee80211_vif *vif)
966 struct ath_softc *sc = hw->priv;
967 struct ath_hw *ah = sc->sc_ah;
968 struct ath_common *common = ath9k_hw_common(ah);
970 mutex_lock(&sc->mutex);
972 ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type);
976 ath9k_calculate_summary_state(hw, vif);
977 ath9k_ps_restore(sc);
979 if (ath9k_uses_beacons(vif->type))
980 ath9k_beacon_assign_slot(sc, vif);
982 mutex_unlock(&sc->mutex);
986 static int ath9k_change_interface(struct ieee80211_hw *hw,
987 struct ieee80211_vif *vif,
988 enum nl80211_iftype new_type,
991 struct ath_softc *sc = hw->priv;
992 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
994 ath_dbg(common, CONFIG, "Change Interface\n");
995 mutex_lock(&sc->mutex);
997 if (ath9k_uses_beacons(vif->type))
998 ath9k_beacon_remove_slot(sc, vif);
1000 vif->type = new_type;
1003 ath9k_ps_wakeup(sc);
1004 ath9k_calculate_summary_state(hw, vif);
1005 ath9k_ps_restore(sc);
1007 if (ath9k_uses_beacons(vif->type))
1008 ath9k_beacon_assign_slot(sc, vif);
1010 mutex_unlock(&sc->mutex);
1014 static void ath9k_remove_interface(struct ieee80211_hw *hw,
1015 struct ieee80211_vif *vif)
1017 struct ath_softc *sc = hw->priv;
1018 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1020 ath_dbg(common, CONFIG, "Detach Interface\n");
1022 mutex_lock(&sc->mutex);
1026 if (ath9k_uses_beacons(vif->type))
1027 ath9k_beacon_remove_slot(sc, vif);
1029 ath9k_ps_wakeup(sc);
1030 ath9k_calculate_summary_state(hw, NULL);
1031 ath9k_ps_restore(sc);
1033 mutex_unlock(&sc->mutex);
1036 static void ath9k_enable_ps(struct ath_softc *sc)
1038 struct ath_hw *ah = sc->sc_ah;
1039 struct ath_common *common = ath9k_hw_common(ah);
1041 sc->ps_enabled = true;
1042 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1043 if ((ah->imask & ATH9K_INT_TIM_TIMER) == 0) {
1044 ah->imask |= ATH9K_INT_TIM_TIMER;
1045 ath9k_hw_set_interrupts(ah);
1047 ath9k_hw_setrxabort(ah, 1);
1049 ath_dbg(common, PS, "PowerSave enabled\n");
1052 static void ath9k_disable_ps(struct ath_softc *sc)
1054 struct ath_hw *ah = sc->sc_ah;
1055 struct ath_common *common = ath9k_hw_common(ah);
1057 sc->ps_enabled = false;
1058 ath9k_hw_setpower(ah, ATH9K_PM_AWAKE);
1059 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1060 ath9k_hw_setrxabort(ah, 0);
1061 sc->ps_flags &= ~(PS_WAIT_FOR_BEACON |
1063 PS_WAIT_FOR_PSPOLL_DATA |
1064 PS_WAIT_FOR_TX_ACK);
1065 if (ah->imask & ATH9K_INT_TIM_TIMER) {
1066 ah->imask &= ~ATH9K_INT_TIM_TIMER;
1067 ath9k_hw_set_interrupts(ah);
1070 ath_dbg(common, PS, "PowerSave disabled\n");
1073 void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw)
1075 struct ath_softc *sc = hw->priv;
1076 struct ath_hw *ah = sc->sc_ah;
1077 struct ath_common *common = ath9k_hw_common(ah);
1080 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1081 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1085 ath9k_ps_wakeup(sc);
1086 rxfilter = ath9k_hw_getrxfilter(ah);
1087 ath9k_hw_setrxfilter(ah, rxfilter |
1088 ATH9K_RX_FILTER_PHYRADAR |
1089 ATH9K_RX_FILTER_PHYERR);
1091 /* TODO: usually this should not be neccesary, but for some reason
1092 * (or in some mode?) the trigger must be called after the
1093 * configuration, otherwise the register will have its values reset
1094 * (on my ar9220 to value 0x01002310)
1096 ath9k_spectral_scan_config(hw, sc->spectral_mode);
1097 ath9k_hw_ops(ah)->spectral_scan_trigger(ah);
1098 ath9k_ps_restore(sc);
1101 int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
1102 enum spectral_mode spectral_mode)
1104 struct ath_softc *sc = hw->priv;
1105 struct ath_hw *ah = sc->sc_ah;
1106 struct ath_common *common = ath9k_hw_common(ah);
1108 if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
1109 ath_err(common, "spectrum analyzer not implemented on this hardware\n");
1113 switch (spectral_mode) {
1114 case SPECTRAL_DISABLED:
1115 sc->spec_config.enabled = 0;
1117 case SPECTRAL_BACKGROUND:
1118 /* send endless samples.
1119 * TODO: is this really useful for "background"?
1121 sc->spec_config.endless = 1;
1122 sc->spec_config.enabled = 1;
1124 case SPECTRAL_CHANSCAN:
1125 case SPECTRAL_MANUAL:
1126 sc->spec_config.endless = 0;
1127 sc->spec_config.enabled = 1;
1133 ath9k_ps_wakeup(sc);
1134 ath9k_hw_ops(ah)->spectral_scan_config(ah, &sc->spec_config);
1135 ath9k_ps_restore(sc);
1137 sc->spectral_mode = spectral_mode;
1142 static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
1144 struct ath_softc *sc = hw->priv;
1145 struct ath_hw *ah = sc->sc_ah;
1146 struct ath_common *common = ath9k_hw_common(ah);
1147 struct ieee80211_conf *conf = &hw->conf;
1148 bool reset_channel = false;
1150 ath9k_ps_wakeup(sc);
1151 mutex_lock(&sc->mutex);
1153 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
1154 sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1156 ath_cancel_work(sc);
1157 ath9k_stop_btcoex(sc);
1159 ath9k_start_btcoex(sc);
1161 * The chip needs a reset to properly wake up from
1164 reset_channel = ah->chip_fullsleep;
1169 * We just prepare to enable PS. We have to wait until our AP has
1170 * ACK'd our null data frame to disable RX otherwise we'll ignore
1171 * those ACKs and end up retransmitting the same null data frames.
1172 * IEEE80211_CONF_CHANGE_PS is only passed by mac80211 for STA mode.
1174 if (changed & IEEE80211_CONF_CHANGE_PS) {
1175 unsigned long flags;
1176 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1177 if (conf->flags & IEEE80211_CONF_PS)
1178 ath9k_enable_ps(sc);
1180 ath9k_disable_ps(sc);
1181 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1184 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
1185 if (conf->flags & IEEE80211_CONF_MONITOR) {
1186 ath_dbg(common, CONFIG, "Monitor mode is enabled\n");
1187 sc->sc_ah->is_monitoring = true;
1189 ath_dbg(common, CONFIG, "Monitor mode is disabled\n");
1190 sc->sc_ah->is_monitoring = false;
1194 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {
1195 struct ieee80211_channel *curchan = hw->conf.chandef.chan;
1196 enum nl80211_channel_type channel_type =
1197 cfg80211_get_chandef_type(&conf->chandef);
1198 int pos = curchan->hw_value;
1200 unsigned long flags;
1203 old_pos = ah->curchan - &ah->channels[0];
1205 ath_dbg(common, CONFIG, "Set channel: %d MHz type: %d\n",
1206 curchan->center_freq, channel_type);
1208 /* update survey stats for the old channel before switching */
1209 spin_lock_irqsave(&common->cc_lock, flags);
1210 ath_update_survey_stats(sc);
1211 spin_unlock_irqrestore(&common->cc_lock, flags);
1213 ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
1214 curchan, channel_type);
1217 * If the operating channel changes, change the survey in-use flags
1219 * Reset the survey data for the new channel, unless we're switching
1220 * back to the operating channel from an off-channel operation.
1222 if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) &&
1223 sc->cur_survey != &sc->survey[pos]) {
1226 sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
1228 sc->cur_survey = &sc->survey[pos];
1230 memset(sc->cur_survey, 0, sizeof(struct survey_info));
1231 sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
1232 } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
1233 memset(&sc->survey[pos], 0, sizeof(struct survey_info));
1236 if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
1237 ath_err(common, "Unable to set channel\n");
1238 mutex_unlock(&sc->mutex);
1239 ath9k_ps_restore(sc);
1244 * The most recent snapshot of channel->noisefloor for the old
1245 * channel is only available after the hardware reset. Copy it to
1246 * the survey stats now.
1249 ath_update_survey_nf(sc, old_pos);
1252 * Enable radar pulse detection if on a DFS channel. Spectral
1253 * scanning and radar detection can not be used concurrently.
1255 if (hw->conf.radar_enabled) {
1258 /* set HW specific DFS configuration */
1259 ath9k_hw_set_radar_params(ah);
1260 rxfilter = ath9k_hw_getrxfilter(ah);
1261 rxfilter |= ATH9K_RX_FILTER_PHYRADAR |
1262 ATH9K_RX_FILTER_PHYERR;
1263 ath9k_hw_setrxfilter(ah, rxfilter);
1264 ath_dbg(common, DFS, "DFS enabled at freq %d\n",
1265 curchan->center_freq);
1267 /* perform spectral scan if requested. */
1269 sc->spectral_mode == SPECTRAL_CHANSCAN)
1270 ath9k_spectral_scan_trigger(hw);
1274 if (changed & IEEE80211_CONF_CHANGE_POWER) {
1275 ath_dbg(common, CONFIG, "Set power: %d\n", conf->power_level);
1276 sc->config.txpowlimit = 2 * conf->power_level;
1277 ath9k_cmn_update_txpow(ah, sc->curtxpow,
1278 sc->config.txpowlimit, &sc->curtxpow);
1281 mutex_unlock(&sc->mutex);
1282 ath9k_ps_restore(sc);
1287 #define SUPPORTED_FILTERS \
1288 (FIF_PROMISC_IN_BSS | \
1293 FIF_BCN_PRBRESP_PROMISC | \
1297 /* FIXME: sc->sc_full_reset ? */
1298 static void ath9k_configure_filter(struct ieee80211_hw *hw,
1299 unsigned int changed_flags,
1300 unsigned int *total_flags,
1303 struct ath_softc *sc = hw->priv;
1306 changed_flags &= SUPPORTED_FILTERS;
1307 *total_flags &= SUPPORTED_FILTERS;
1309 sc->rx.rxfilter = *total_flags;
1310 ath9k_ps_wakeup(sc);
1311 rfilt = ath_calcrxfilter(sc);
1312 ath9k_hw_setrxfilter(sc->sc_ah, rfilt);
1313 ath9k_ps_restore(sc);
1315 ath_dbg(ath9k_hw_common(sc->sc_ah), CONFIG, "Set HW RX filter: 0x%x\n",
1319 static int ath9k_sta_add(struct ieee80211_hw *hw,
1320 struct ieee80211_vif *vif,
1321 struct ieee80211_sta *sta)
1323 struct ath_softc *sc = hw->priv;
1324 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1325 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1326 struct ieee80211_key_conf ps_key = { };
1329 ath_node_attach(sc, sta, vif);
1331 if (vif->type != NL80211_IFTYPE_AP &&
1332 vif->type != NL80211_IFTYPE_AP_VLAN)
1335 key = ath_key_config(common, vif, sta, &ps_key);
1342 static void ath9k_del_ps_key(struct ath_softc *sc,
1343 struct ieee80211_vif *vif,
1344 struct ieee80211_sta *sta)
1346 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1347 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1348 struct ieee80211_key_conf ps_key = { .hw_key_idx = an->ps_key };
1353 ath_key_delete(common, &ps_key);
1357 static int ath9k_sta_remove(struct ieee80211_hw *hw,
1358 struct ieee80211_vif *vif,
1359 struct ieee80211_sta *sta)
1361 struct ath_softc *sc = hw->priv;
1363 ath9k_del_ps_key(sc, vif, sta);
1364 ath_node_detach(sc, sta);
1369 static void ath9k_sta_notify(struct ieee80211_hw *hw,
1370 struct ieee80211_vif *vif,
1371 enum sta_notify_cmd cmd,
1372 struct ieee80211_sta *sta)
1374 struct ath_softc *sc = hw->priv;
1375 struct ath_node *an = (struct ath_node *) sta->drv_priv;
1377 if (!sta->ht_cap.ht_supported)
1381 case STA_NOTIFY_SLEEP:
1382 an->sleeping = true;
1383 ath_tx_aggr_sleep(sta, sc, an);
1385 case STA_NOTIFY_AWAKE:
1386 an->sleeping = false;
1387 ath_tx_aggr_wakeup(sc, an);
1392 static int ath9k_conf_tx(struct ieee80211_hw *hw,
1393 struct ieee80211_vif *vif, u16 queue,
1394 const struct ieee80211_tx_queue_params *params)
1396 struct ath_softc *sc = hw->priv;
1397 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1398 struct ath_txq *txq;
1399 struct ath9k_tx_queue_info qi;
1402 if (queue >= IEEE80211_NUM_ACS)
1405 txq = sc->tx.txq_map[queue];
1407 ath9k_ps_wakeup(sc);
1408 mutex_lock(&sc->mutex);
1410 memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
1412 qi.tqi_aifs = params->aifs;
1413 qi.tqi_cwmin = params->cw_min;
1414 qi.tqi_cwmax = params->cw_max;
1415 qi.tqi_burstTime = params->txop * 32;
1417 ath_dbg(common, CONFIG,
1418 "Configure tx [queue/halq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
1419 queue, txq->axq_qnum, params->aifs, params->cw_min,
1420 params->cw_max, params->txop);
1422 ath_update_max_aggr_framelen(sc, queue, qi.tqi_burstTime);
1423 ret = ath_txq_update(sc, txq->axq_qnum, &qi);
1425 ath_err(common, "TXQ Update failed\n");
1427 mutex_unlock(&sc->mutex);
1428 ath9k_ps_restore(sc);
1433 static int ath9k_set_key(struct ieee80211_hw *hw,
1434 enum set_key_cmd cmd,
1435 struct ieee80211_vif *vif,
1436 struct ieee80211_sta *sta,
1437 struct ieee80211_key_conf *key)
1439 struct ath_softc *sc = hw->priv;
1440 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1443 if (ath9k_modparam_nohwcrypt)
1446 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1447 vif->type == NL80211_IFTYPE_MESH_POINT) &&
1448 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
1449 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
1450 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
1452 * For now, disable hw crypto for the RSN IBSS group keys. This
1453 * could be optimized in the future to use a modified key cache
1454 * design to support per-STA RX GTK, but until that gets
1455 * implemented, use of software crypto for group addressed
1456 * frames is a acceptable to allow RSN IBSS to be used.
1461 mutex_lock(&sc->mutex);
1462 ath9k_ps_wakeup(sc);
1463 ath_dbg(common, CONFIG, "Set HW Key\n");
1468 ath9k_del_ps_key(sc, vif, sta);
1470 ret = ath_key_config(common, vif, sta, key);
1472 key->hw_key_idx = ret;
1473 /* push IV and Michael MIC generation to stack */
1474 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1475 if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
1476 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1477 if (sc->sc_ah->sw_mgmt_crypto &&
1478 key->cipher == WLAN_CIPHER_SUITE_CCMP)
1479 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
1484 ath_key_delete(common, key);
1490 ath9k_ps_restore(sc);
1491 mutex_unlock(&sc->mutex);
1496 static void ath9k_set_assoc_state(struct ath_softc *sc,
1497 struct ieee80211_vif *vif)
1499 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1500 struct ath_vif *avp = (void *)vif->drv_priv;
1501 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1502 unsigned long flags;
1504 set_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1505 avp->primary_sta_vif = true;
1508 * Set the AID, BSSID and do beacon-sync only when
1509 * the HW opmode is STATION.
1511 * But the primary bit is set above in any case.
1513 if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
1516 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1517 common->curaid = bss_conf->aid;
1518 ath9k_hw_write_associd(sc->sc_ah);
1520 sc->last_rssi = ATH_RSSI_DUMMY_MARKER;
1521 sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
1523 spin_lock_irqsave(&sc->sc_pm_lock, flags);
1524 sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
1525 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
1527 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1528 ath9k_mci_update_wlan_channels(sc, false);
1530 ath_dbg(common, CONFIG,
1531 "Primary Station interface: %pM, BSSID: %pM\n",
1532 vif->addr, common->curbssid);
1535 static void ath9k_bss_assoc_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
1537 struct ath_softc *sc = data;
1538 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1540 if (test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags))
1543 if (bss_conf->assoc)
1544 ath9k_set_assoc_state(sc, vif);
1547 static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
1548 struct ieee80211_vif *vif,
1549 struct ieee80211_bss_conf *bss_conf,
1553 (BSS_CHANGED_ASSOC | \
1554 BSS_CHANGED_IBSS | \
1555 BSS_CHANGED_BEACON_ENABLED)
1557 struct ath_softc *sc = hw->priv;
1558 struct ath_hw *ah = sc->sc_ah;
1559 struct ath_common *common = ath9k_hw_common(ah);
1560 struct ath_vif *avp = (void *)vif->drv_priv;
1563 ath9k_ps_wakeup(sc);
1564 mutex_lock(&sc->mutex);
1566 if (changed & BSS_CHANGED_ASSOC) {
1567 ath_dbg(common, CONFIG, "BSSID %pM Changed ASSOC %d\n",
1568 bss_conf->bssid, bss_conf->assoc);
1570 if (avp->primary_sta_vif && !bss_conf->assoc) {
1571 clear_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags);
1572 avp->primary_sta_vif = false;
1574 if (ah->opmode == NL80211_IFTYPE_STATION)
1575 clear_bit(SC_OP_BEACONS, &sc->sc_flags);
1578 ieee80211_iterate_active_interfaces_atomic(
1579 sc->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1580 ath9k_bss_assoc_iter, sc);
1582 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags) &&
1583 ah->opmode == NL80211_IFTYPE_STATION) {
1584 memset(common->curbssid, 0, ETH_ALEN);
1586 ath9k_hw_write_associd(sc->sc_ah);
1587 if (ath9k_hw_mci_is_enabled(sc->sc_ah))
1588 ath9k_mci_update_wlan_channels(sc, true);
1592 if (changed & BSS_CHANGED_IBSS) {
1593 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1594 common->curaid = bss_conf->aid;
1595 ath9k_hw_write_associd(sc->sc_ah);
1598 if ((changed & BSS_CHANGED_BEACON_ENABLED) ||
1599 (changed & BSS_CHANGED_BEACON_INT)) {
1600 if (ah->opmode == NL80211_IFTYPE_AP &&
1601 bss_conf->enable_beacon)
1602 ath9k_set_tsfadjust(sc, vif);
1603 if (ath9k_allow_beacon_config(sc, vif))
1604 ath9k_beacon_config(sc, vif, changed);
1607 if (changed & BSS_CHANGED_ERP_SLOT) {
1608 if (bss_conf->use_short_slot)
1612 if (vif->type == NL80211_IFTYPE_AP) {
1614 * Defer update, so that connected stations can adjust
1615 * their settings at the same time.
1616 * See beacon.c for more details
1618 sc->beacon.slottime = slottime;
1619 sc->beacon.updateslot = UPDATE;
1621 ah->slottime = slottime;
1622 ath9k_hw_init_global_settings(ah);
1626 if (changed & CHECK_ANI)
1629 mutex_unlock(&sc->mutex);
1630 ath9k_ps_restore(sc);
1635 static u64 ath9k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1637 struct ath_softc *sc = hw->priv;
1640 mutex_lock(&sc->mutex);
1641 ath9k_ps_wakeup(sc);
1642 tsf = ath9k_hw_gettsf64(sc->sc_ah);
1643 ath9k_ps_restore(sc);
1644 mutex_unlock(&sc->mutex);
1649 static void ath9k_set_tsf(struct ieee80211_hw *hw,
1650 struct ieee80211_vif *vif,
1653 struct ath_softc *sc = hw->priv;
1655 mutex_lock(&sc->mutex);
1656 ath9k_ps_wakeup(sc);
1657 ath9k_hw_settsf64(sc->sc_ah, tsf);
1658 ath9k_ps_restore(sc);
1659 mutex_unlock(&sc->mutex);
1662 static void ath9k_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1664 struct ath_softc *sc = hw->priv;
1666 mutex_lock(&sc->mutex);
1668 ath9k_ps_wakeup(sc);
1669 ath9k_hw_reset_tsf(sc->sc_ah);
1670 ath9k_ps_restore(sc);
1672 mutex_unlock(&sc->mutex);
1675 static int ath9k_ampdu_action(struct ieee80211_hw *hw,
1676 struct ieee80211_vif *vif,
1677 enum ieee80211_ampdu_mlme_action action,
1678 struct ieee80211_sta *sta,
1679 u16 tid, u16 *ssn, u8 buf_size)
1681 struct ath_softc *sc = hw->priv;
1688 case IEEE80211_AMPDU_RX_START:
1690 case IEEE80211_AMPDU_RX_STOP:
1692 case IEEE80211_AMPDU_TX_START:
1693 ath9k_ps_wakeup(sc);
1694 ret = ath_tx_aggr_start(sc, sta, tid, ssn);
1696 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1697 ath9k_ps_restore(sc);
1699 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1700 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1702 case IEEE80211_AMPDU_TX_STOP_CONT:
1703 ath9k_ps_wakeup(sc);
1704 ath_tx_aggr_stop(sc, sta, tid);
1706 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1707 ath9k_ps_restore(sc);
1709 case IEEE80211_AMPDU_TX_OPERATIONAL:
1710 ath9k_ps_wakeup(sc);
1711 ath_tx_aggr_resume(sc, sta, tid);
1712 ath9k_ps_restore(sc);
1715 ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n");
1723 static int ath9k_get_survey(struct ieee80211_hw *hw, int idx,
1724 struct survey_info *survey)
1726 struct ath_softc *sc = hw->priv;
1727 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
1728 struct ieee80211_supported_band *sband;
1729 struct ieee80211_channel *chan;
1730 unsigned long flags;
1733 spin_lock_irqsave(&common->cc_lock, flags);
1735 ath_update_survey_stats(sc);
1737 sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
1738 if (sband && idx >= sband->n_channels) {
1739 idx -= sband->n_channels;
1744 sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
1746 if (!sband || idx >= sband->n_channels) {
1747 spin_unlock_irqrestore(&common->cc_lock, flags);
1751 chan = &sband->channels[idx];
1752 pos = chan->hw_value;
1753 memcpy(survey, &sc->survey[pos], sizeof(*survey));
1754 survey->channel = chan;
1755 spin_unlock_irqrestore(&common->cc_lock, flags);
1760 static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
1762 struct ath_softc *sc = hw->priv;
1763 struct ath_hw *ah = sc->sc_ah;
1765 mutex_lock(&sc->mutex);
1766 ah->coverage_class = coverage_class;
1768 ath9k_ps_wakeup(sc);
1769 ath9k_hw_init_global_settings(ah);
1770 ath9k_ps_restore(sc);
1772 mutex_unlock(&sc->mutex);
1775 static void ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1777 struct ath_softc *sc = hw->priv;
1778 struct ath_hw *ah = sc->sc_ah;
1779 struct ath_common *common = ath9k_hw_common(ah);
1780 int timeout = 200; /* ms */
1784 mutex_lock(&sc->mutex);
1785 cancel_delayed_work_sync(&sc->tx_complete_work);
1787 if (ah->ah_flags & AH_UNPLUGGED) {
1788 ath_dbg(common, ANY, "Device has been unplugged!\n");
1789 mutex_unlock(&sc->mutex);
1793 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
1794 ath_dbg(common, ANY, "Device not present\n");
1795 mutex_unlock(&sc->mutex);
1799 for (j = 0; j < timeout; j++) {
1803 usleep_range(1000, 2000);
1805 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1806 if (!ATH_TXQ_SETUP(sc, i))
1809 npend = ath9k_has_pending_frames(sc, &sc->tx.txq[i]);
1820 ath9k_ps_wakeup(sc);
1821 spin_lock_bh(&sc->sc_pcu_lock);
1822 drain_txq = ath_drain_all_txq(sc);
1823 spin_unlock_bh(&sc->sc_pcu_lock);
1828 ath9k_ps_restore(sc);
1829 ieee80211_wake_queues(hw);
1832 ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
1833 mutex_unlock(&sc->mutex);
1836 static bool ath9k_tx_frames_pending(struct ieee80211_hw *hw)
1838 struct ath_softc *sc = hw->priv;
1841 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1842 if (!ATH_TXQ_SETUP(sc, i))
1845 if (ath9k_has_pending_frames(sc, &sc->tx.txq[i]))
1851 static int ath9k_tx_last_beacon(struct ieee80211_hw *hw)
1853 struct ath_softc *sc = hw->priv;
1854 struct ath_hw *ah = sc->sc_ah;
1855 struct ieee80211_vif *vif;
1856 struct ath_vif *avp;
1858 struct ath_tx_status ts;
1859 bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
1862 vif = sc->beacon.bslot[0];
1866 if (!vif->bss_conf.enable_beacon)
1869 avp = (void *)vif->drv_priv;
1871 if (!sc->beacon.tx_processed && !edma) {
1872 tasklet_disable(&sc->bcon_tasklet);
1875 if (!bf || !bf->bf_mpdu)
1878 status = ath9k_hw_txprocdesc(ah, bf->bf_desc, &ts);
1879 if (status == -EINPROGRESS)
1882 sc->beacon.tx_processed = true;
1883 sc->beacon.tx_last = !(ts.ts_status & ATH9K_TXERR_MASK);
1886 tasklet_enable(&sc->bcon_tasklet);
1889 return sc->beacon.tx_last;
1892 static int ath9k_get_stats(struct ieee80211_hw *hw,
1893 struct ieee80211_low_level_stats *stats)
1895 struct ath_softc *sc = hw->priv;
1896 struct ath_hw *ah = sc->sc_ah;
1897 struct ath9k_mib_stats *mib_stats = &ah->ah_mibStats;
1899 stats->dot11ACKFailureCount = mib_stats->ackrcv_bad;
1900 stats->dot11RTSFailureCount = mib_stats->rts_bad;
1901 stats->dot11FCSErrorCount = mib_stats->fcs_bad;
1902 stats->dot11RTSSuccessCount = mib_stats->rts_good;
1906 static u32 fill_chainmask(u32 cap, u32 new)
1911 for (i = 0; cap && new; i++, cap >>= 1) {
1912 if (!(cap & BIT(0)))
1924 static bool validate_antenna_mask(struct ath_hw *ah, u32 val)
1926 if (AR_SREV_9300_20_OR_LATER(ah))
1929 switch (val & 0x7) {
1935 return (ah->caps.rx_chainmask == 1);
1941 static int ath9k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
1943 struct ath_softc *sc = hw->priv;
1944 struct ath_hw *ah = sc->sc_ah;
1946 if (ah->caps.rx_chainmask != 1)
1949 if (!validate_antenna_mask(ah, rx_ant) || !tx_ant)
1952 sc->ant_rx = rx_ant;
1953 sc->ant_tx = tx_ant;
1955 if (ah->caps.rx_chainmask == 1)
1958 /* AR9100 runs into calibration issues if not all rx chains are enabled */
1959 if (AR_SREV_9100(ah))
1960 ah->rxchainmask = 0x7;
1962 ah->rxchainmask = fill_chainmask(ah->caps.rx_chainmask, rx_ant);
1964 ah->txchainmask = fill_chainmask(ah->caps.tx_chainmask, tx_ant);
1965 ath9k_reload_chainmask_settings(sc);
1970 static int ath9k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
1972 struct ath_softc *sc = hw->priv;
1974 *tx_ant = sc->ant_tx;
1975 *rx_ant = sc->ant_rx;
1979 #ifdef CONFIG_PM_SLEEP
1981 static void ath9k_wow_map_triggers(struct ath_softc *sc,
1982 struct cfg80211_wowlan *wowlan,
1985 if (wowlan->disconnect)
1986 *wow_triggers |= AH_WOW_LINK_CHANGE |
1988 if (wowlan->magic_pkt)
1989 *wow_triggers |= AH_WOW_MAGIC_PATTERN_EN;
1991 if (wowlan->n_patterns)
1992 *wow_triggers |= AH_WOW_USER_PATTERN_EN;
1994 sc->wow_enabled = *wow_triggers;
1998 static void ath9k_wow_add_disassoc_deauth_pattern(struct ath_softc *sc)
2000 struct ath_hw *ah = sc->sc_ah;
2001 struct ath_common *common = ath9k_hw_common(ah);
2002 struct ath9k_hw_capabilities *pcaps = &ah->caps;
2003 int pattern_count = 0;
2005 u8 dis_deauth_pattern[MAX_PATTERN_SIZE];
2006 u8 dis_deauth_mask[MAX_PATTERN_SIZE];
2008 memset(dis_deauth_pattern, 0, MAX_PATTERN_SIZE);
2009 memset(dis_deauth_mask, 0, MAX_PATTERN_SIZE);
2012 * Create Dissassociate / Deauthenticate packet filter
2014 * 2 bytes 2 byte 6 bytes 6 bytes 6 bytes
2015 * +--------------+----------+---------+--------+--------+----
2016 * + Frame Control+ Duration + DA + SA + BSSID +
2017 * +--------------+----------+---------+--------+--------+----
2019 * The above is the management frame format for disassociate/
2020 * deauthenticate pattern, from this we need to match the first byte
2021 * of 'Frame Control' and DA, SA, and BSSID fields
2022 * (skipping 2nd byte of FC and Duration feild.
2024 * Disassociate pattern
2025 * --------------------
2026 * Frame control = 00 00 1010
2027 * DA, SA, BSSID = x:x:x:x:x:x
2028 * Pattern will be A0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2029 * | x:x:x:x:x:x -- 22 bytes
2031 * Deauthenticate pattern
2032 * ----------------------
2033 * Frame control = 00 00 1100
2034 * DA, SA, BSSID = x:x:x:x:x:x
2035 * Pattern will be C0000000 | x:x:x:x:x:x | x:x:x:x:x:x
2036 * | x:x:x:x:x:x -- 22 bytes
2039 /* Create Disassociate Pattern first */
2043 /* Fill out the mask with all FF's */
2045 for (i = 0; i < MAX_PATTERN_MASK_SIZE; i++)
2046 dis_deauth_mask[i] = 0xff;
2048 /* copy the first byte of frame control field */
2049 dis_deauth_pattern[byte_cnt] = 0xa0;
2052 /* skip 2nd byte of frame control and Duration field */
2056 * need not match the destination mac address, it can be a broadcast
2057 * mac address or an unicast to this station
2061 /* copy the source mac address */
2062 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2066 /* copy the bssid, its same as the source mac address */
2068 memcpy((dis_deauth_pattern + byte_cnt), common->curbssid, ETH_ALEN);
2070 /* Create Disassociate pattern mask */
2072 if (pcaps->hw_caps & ATH9K_HW_WOW_PATTERN_MATCH_EXACT) {
2074 if (pcaps->hw_caps & ATH9K_HW_WOW_PATTERN_MATCH_DWORD) {
2076 * for AR9280, because of hardware limitation, the
2077 * first 4 bytes have to be matched for all patterns.
2078 * the mask for disassociation and de-auth pattern
2079 * matching need to enable the first 4 bytes.
2080 * also the duration field needs to be filled.
2082 dis_deauth_mask[0] = 0xf0;
2085 * fill in duration field
2086 FIXME: what is the exact value ?
2088 dis_deauth_pattern[2] = 0xff;
2089 dis_deauth_pattern[3] = 0xff;
2091 dis_deauth_mask[0] = 0xfe;
2094 dis_deauth_mask[1] = 0x03;
2095 dis_deauth_mask[2] = 0xc0;
2097 dis_deauth_mask[0] = 0xef;
2098 dis_deauth_mask[1] = 0x3f;
2099 dis_deauth_mask[2] = 0x00;
2100 dis_deauth_mask[3] = 0xfc;
2103 ath_dbg(common, WOW, "Adding disassoc/deauth patterns for WoW\n");
2105 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2106 pattern_count, byte_cnt);
2110 * for de-authenticate pattern, only the first byte of the frame
2111 * control field gets changed from 0xA0 to 0xC0
2113 dis_deauth_pattern[0] = 0xC0;
2115 ath9k_hw_wow_apply_pattern(ah, dis_deauth_pattern, dis_deauth_mask,
2116 pattern_count, byte_cnt);
2120 static void ath9k_wow_add_pattern(struct ath_softc *sc,
2121 struct cfg80211_wowlan *wowlan)
2123 struct ath_hw *ah = sc->sc_ah;
2124 struct ath9k_wow_pattern *wow_pattern = NULL;
2125 struct cfg80211_wowlan_trig_pkt_pattern *patterns = wowlan->patterns;
2129 if (!wowlan->n_patterns)
2133 * Add the new user configured patterns
2135 for (i = 0; i < wowlan->n_patterns; i++) {
2137 wow_pattern = kzalloc(sizeof(*wow_pattern), GFP_KERNEL);
2143 * TODO: convert the generic user space pattern to
2144 * appropriate chip specific/802.11 pattern.
2147 mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
2148 memset(wow_pattern->pattern_bytes, 0, MAX_PATTERN_SIZE);
2149 memset(wow_pattern->mask_bytes, 0, MAX_PATTERN_SIZE);
2150 memcpy(wow_pattern->pattern_bytes, patterns[i].pattern,
2151 patterns[i].pattern_len);
2152 memcpy(wow_pattern->mask_bytes, patterns[i].mask, mask_len);
2153 wow_pattern->pattern_len = patterns[i].pattern_len;
2156 * just need to take care of deauth and disssoc pattern,
2157 * make sure we don't overwrite them.
2160 ath9k_hw_wow_apply_pattern(ah, wow_pattern->pattern_bytes,
2161 wow_pattern->mask_bytes,
2163 wow_pattern->pattern_len);
2170 static int ath9k_suspend(struct ieee80211_hw *hw,
2171 struct cfg80211_wowlan *wowlan)
2173 struct ath_softc *sc = hw->priv;
2174 struct ath_hw *ah = sc->sc_ah;
2175 struct ath_common *common = ath9k_hw_common(ah);
2176 u32 wow_triggers_enabled = 0;
2179 mutex_lock(&sc->mutex);
2181 ath_cancel_work(sc);
2183 del_timer_sync(&sc->rx_poll_timer);
2185 if (test_bit(SC_OP_INVALID, &sc->sc_flags)) {
2186 ath_dbg(common, ANY, "Device not present\n");
2191 if (WARN_ON(!wowlan)) {
2192 ath_dbg(common, WOW, "None of the WoW triggers enabled\n");
2197 if (!device_can_wakeup(sc->dev)) {
2198 ath_dbg(common, WOW, "device_can_wakeup failed, WoW is not enabled\n");
2204 * none of the sta vifs are associated
2205 * and we are not currently handling multivif
2206 * cases, for instance we have to seperately
2207 * configure 'keep alive frame' for each
2211 if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
2212 ath_dbg(common, WOW, "None of the STA vifs are associated\n");
2217 if (sc->nvifs > 1) {
2218 ath_dbg(common, WOW, "WoW for multivif is not yet supported\n");
2223 ath9k_wow_map_triggers(sc, wowlan, &wow_triggers_enabled);
2225 ath_dbg(common, WOW, "WoW triggers enabled 0x%x\n",
2226 wow_triggers_enabled);
2228 ath9k_ps_wakeup(sc);
2230 ath9k_stop_btcoex(sc);
2233 * Enable wake up on recieving disassoc/deauth
2236 ath9k_wow_add_disassoc_deauth_pattern(sc);
2238 if (wow_triggers_enabled & AH_WOW_USER_PATTERN_EN)
2239 ath9k_wow_add_pattern(sc, wowlan);
2241 spin_lock_bh(&sc->sc_pcu_lock);
2243 * To avoid false wake, we enable beacon miss interrupt only
2244 * when we go to sleep. We save the current interrupt mask
2245 * so we can restore it after the system wakes up
2247 sc->wow_intr_before_sleep = ah->imask;
2248 ah->imask &= ~ATH9K_INT_GLOBAL;
2249 ath9k_hw_disable_interrupts(ah);
2250 ah->imask = ATH9K_INT_BMISS | ATH9K_INT_GLOBAL;
2251 ath9k_hw_set_interrupts(ah);
2252 ath9k_hw_enable_interrupts(ah);
2254 spin_unlock_bh(&sc->sc_pcu_lock);
2257 * we can now sync irq and kill any running tasklets, since we already
2258 * disabled interrupts and not holding a spin lock
2260 synchronize_irq(sc->irq);
2261 tasklet_kill(&sc->intr_tq);
2263 ath9k_hw_wow_enable(ah, wow_triggers_enabled);
2265 ath9k_ps_restore(sc);
2266 ath_dbg(common, ANY, "WoW enabled in ath9k\n");
2267 atomic_inc(&sc->wow_sleep_proc_intr);
2270 mutex_unlock(&sc->mutex);
2274 static int ath9k_resume(struct ieee80211_hw *hw)
2276 struct ath_softc *sc = hw->priv;
2277 struct ath_hw *ah = sc->sc_ah;
2278 struct ath_common *common = ath9k_hw_common(ah);
2281 mutex_lock(&sc->mutex);
2283 ath9k_ps_wakeup(sc);
2285 spin_lock_bh(&sc->sc_pcu_lock);
2287 ath9k_hw_disable_interrupts(ah);
2288 ah->imask = sc->wow_intr_before_sleep;
2289 ath9k_hw_set_interrupts(ah);
2290 ath9k_hw_enable_interrupts(ah);
2292 spin_unlock_bh(&sc->sc_pcu_lock);
2294 wow_status = ath9k_hw_wow_wakeup(ah);
2296 if (atomic_read(&sc->wow_got_bmiss_intr) == 0) {
2298 * some devices may not pick beacon miss
2299 * as the reason they woke up so we add
2300 * that here for that shortcoming.
2302 wow_status |= AH_WOW_BEACON_MISS;
2303 atomic_dec(&sc->wow_got_bmiss_intr);
2304 ath_dbg(common, ANY, "Beacon miss interrupt picked up during WoW sleep\n");
2307 atomic_dec(&sc->wow_sleep_proc_intr);
2310 ath_dbg(common, ANY, "Waking up due to WoW triggers %s with WoW status = %x\n",
2311 ath9k_hw_wow_event_to_string(wow_status), wow_status);
2314 ath_restart_work(sc);
2315 ath9k_start_btcoex(sc);
2317 ath9k_ps_restore(sc);
2318 mutex_unlock(&sc->mutex);
2323 static void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2325 struct ath_softc *sc = hw->priv;
2327 mutex_lock(&sc->mutex);
2328 device_init_wakeup(sc->dev, 1);
2329 device_set_wakeup_enable(sc->dev, enabled);
2330 mutex_unlock(&sc->mutex);
2334 static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
2336 struct ath_softc *sc = hw->priv;
2341 static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
2343 struct ath_softc *sc = hw->priv;
2348 struct ieee80211_ops ath9k_ops = {
2350 .start = ath9k_start,
2352 .add_interface = ath9k_add_interface,
2353 .change_interface = ath9k_change_interface,
2354 .remove_interface = ath9k_remove_interface,
2355 .config = ath9k_config,
2356 .configure_filter = ath9k_configure_filter,
2357 .sta_add = ath9k_sta_add,
2358 .sta_remove = ath9k_sta_remove,
2359 .sta_notify = ath9k_sta_notify,
2360 .conf_tx = ath9k_conf_tx,
2361 .bss_info_changed = ath9k_bss_info_changed,
2362 .set_key = ath9k_set_key,
2363 .get_tsf = ath9k_get_tsf,
2364 .set_tsf = ath9k_set_tsf,
2365 .reset_tsf = ath9k_reset_tsf,
2366 .ampdu_action = ath9k_ampdu_action,
2367 .get_survey = ath9k_get_survey,
2368 .rfkill_poll = ath9k_rfkill_poll_state,
2369 .set_coverage_class = ath9k_set_coverage_class,
2370 .flush = ath9k_flush,
2371 .tx_frames_pending = ath9k_tx_frames_pending,
2372 .tx_last_beacon = ath9k_tx_last_beacon,
2373 .get_stats = ath9k_get_stats,
2374 .set_antenna = ath9k_set_antenna,
2375 .get_antenna = ath9k_get_antenna,
2377 #ifdef CONFIG_PM_SLEEP
2378 .suspend = ath9k_suspend,
2379 .resume = ath9k_resume,
2380 .set_wakeup = ath9k_set_wakeup,
2383 #ifdef CONFIG_ATH9K_DEBUGFS
2384 .get_et_sset_count = ath9k_get_et_sset_count,
2385 .get_et_stats = ath9k_get_et_stats,
2386 .get_et_strings = ath9k_get_et_strings,
2389 #if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_DEBUGFS)
2390 .sta_add_debugfs = ath9k_sta_add_debugfs,
2391 .sta_remove_debugfs = ath9k_sta_remove_debugfs,
2393 .sw_scan_start = ath9k_sw_scan_start,
2394 .sw_scan_complete = ath9k_sw_scan_complete,