1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
4  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
44  * by the driver - eg, calls to ath_hal_gettsf32().
114 	struct ath_hal *ah = sc->sc_ah;  in ath_beaconq_setup()
123 	if (sc->sc_isedma)  in ath_beaconq_setup()
136 #define	ATH_EXPONENT_TO_VALUE(v)	((1<<(v))-1)  in ath_beaconq_config()
137 	struct ieee80211com *ic = &sc->sc_ic;  in ath_beaconq_config()
138 	struct ath_hal *ah = sc->sc_ah;  in ath_beaconq_config()
141 	ath_hal_gettxqueueprops(ah, sc->sc_bhalq, &qi);  in ath_beaconq_config()
142 	if (ic->ic_opmode == IEEE80211_M_HOSTAP ||  in ath_beaconq_config()
143 	    ic->ic_opmode == IEEE80211_M_MBSS) {  in ath_beaconq_config()
160 		qi.tqi_aifs = wmep->wmep_aifsn;  in ath_beaconq_config()
161 		qi.tqi_cwmin = 2*ATH_EXPONENT_TO_VALUE(wmep->wmep_logcwmin);  in ath_beaconq_config()
162 		qi.tqi_cwmax = ATH_EXPONENT_TO_VALUE(wmep->wmep_logcwmax);  in ath_beaconq_config()
165 	if (!ath_hal_settxqueueprops(ah, sc->sc_bhalq, &qi)) {  in ath_beaconq_config()
166 		device_printf(sc->sc_dev, "unable to update parameters for "  in ath_beaconq_config()
170 		ath_hal_resettxqueue(ah, sc->sc_bhalq); /* push to h/w */  in ath_beaconq_config()
182 	struct ieee80211vap *vap = ni->ni_vap;  in ath_beacon_alloc()
188 	bf = avp->av_bcbuf;  in ath_beacon_alloc()
190 	    __func__, bf->bf_m, bf->bf_node);  in ath_beacon_alloc()
191 	if (bf->bf_m != NULL) {  in ath_beacon_alloc()
192 		bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);  in ath_beacon_alloc()
193 		m_freem(bf->bf_m);  in ath_beacon_alloc()
194 		bf->bf_m = NULL;  in ath_beacon_alloc()
196 	if (bf->bf_node != NULL) {  in ath_beacon_alloc()
197 		ieee80211_free_node(bf->bf_node);  in ath_beacon_alloc()
198 		bf->bf_node = NULL;  in ath_beacon_alloc()
202 	 * NB: the beacon data buffer must be 32-bit aligned;  in ath_beacon_alloc()
208 		device_printf(sc->sc_dev, "%s: cannot get mbuf\n", __func__);  in ath_beacon_alloc()
209 		sc->sc_stats.ast_be_nombuf++;  in ath_beacon_alloc()
212 	error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m,  in ath_beacon_alloc()
213 				     bf->bf_segs, &bf->bf_nseg,  in ath_beacon_alloc()
216 		device_printf(sc->sc_dev,  in ath_beacon_alloc()
229 	if (sc->sc_stagbeacons && avp->av_bslot > 0) {  in ath_beacon_alloc()
243 		tsfadjust = ni->ni_intval *  in ath_beacon_alloc()
244 		    (ATH_BCBUF - avp->av_bslot) / ATH_BCBUF;  in ath_beacon_alloc()
245 		tsfadjust = htole64(tsfadjust << 10);	/* TU -> TSF */  in ath_beacon_alloc()
249 		    __func__, sc->sc_stagbeacons ? "stagger" : "burst",  in ath_beacon_alloc()
250 		    avp->av_bslot, ni->ni_intval,  in ath_beacon_alloc()
256 	bf->bf_m = m;  in ath_beacon_alloc()
257 	bf->bf_node = ieee80211_ref_node(ni);  in ath_beacon_alloc()
269 	(((_ic)->ic_flags & (IEEE80211_F_SHPREAMBLE | IEEE80211_F_USEBARKER))\  in ath_beacon_setup()
271 	struct ieee80211_node *ni = bf->bf_node;  in ath_beacon_setup()
272 	struct ieee80211com *ic = ni->ni_ic;  in ath_beacon_setup()
273 	struct mbuf *m = bf->bf_m;  in ath_beacon_setup()
274 	struct ath_hal *ah = sc->sc_ah;  in ath_beacon_setup()
284 		__func__, m, m->m_len);  in ath_beacon_setup()
287 	ds = bf->bf_desc;  in ath_beacon_setup()
288 	bf->bf_last = bf;  in ath_beacon_setup()
289 	bf->bf_lastds = ds;  in ath_beacon_setup()
292 	if (ic->ic_opmode == IEEE80211_M_IBSS && sc->sc_hasveol) {  in ath_beacon_setup()
293 		/* self-linked descriptor */  in ath_beacon_setup()
294 		ath_hal_settxdesclink(sc->sc_ah, ds, bf->bf_daddr);  in ath_beacon_setup()
299 		antenna = sc->sc_txantenna;  in ath_beacon_setup()
301 		ath_hal_settxdesclink(sc->sc_ah, ds, 0);  in ath_beacon_setup()
306 		if (sc->sc_txantenna != 0)  in ath_beacon_setup()
307 			antenna = sc->sc_txantenna;  in ath_beacon_setup()
308 		else if (sc->sc_stagbeacons && sc->sc_nbcnvaps != 0)  in ath_beacon_setup()
309 			antenna = ((sc->sc_stats.ast_be_xmit / sc->sc_nbcnvaps) & 4 ? 2 : 1);  in ath_beacon_setup()
311 			antenna = (sc->sc_stats.ast_be_xmit & 4 ? 2 : 1);  in ath_beacon_setup()
314 	KASSERT(bf->bf_nseg == 1,  in ath_beacon_setup()
315 		("multi-segment beacon frame; nseg %u", bf->bf_nseg));  in ath_beacon_setup()
322 	rt = sc->sc_currates;  in ath_beacon_setup()
323 	rate = rt->info[rix].rateCode;  in ath_beacon_setup()
325 		rate |= rt->info[rix].shortPreamble;  in ath_beacon_setup()
327 		, m->m_len + IEEE80211_CRC_LEN	/* frame length */  in ath_beacon_setup()
340 	 * The EDMA HAL currently assumes that _all_ rate control  in ath_beacon_setup()
344 	if (sc->sc_isedma) {  in ath_beacon_setup()
347 		rc[0].ChSel = sc->sc_txchainmask;  in ath_beacon_setup()
349 		rc[0].Rate = rt->info[rix].rateCode;  in ath_beacon_setup()
353 		    ath_hal_computetxtime(ah, rt, roundup(m->m_len, 4),  in ath_beacon_setup()
359 	segLenList[0] = roundup(m->m_len, 4);  in ath_beacon_setup()
361 	bufAddrList[0] = bf->bf_segs[0].ds_addr;  in ath_beacon_setup()
367 		, sc->sc_bhalq			/* hardware TXQ */  in ath_beacon_setup()
381 	struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off;  in ath_beacon_update()
383 	setbit(bo->bo_flags, item);  in ath_beacon_update()
398 	ret = ath_hal_get_mib_cycle_counts(sc->sc_ah, &hs);  in ath_beacon_miss()
400 	if (ath_hal_gethangstate(sc->sc_ah, 0xffff, &hangs) && hangs != 0) {  in ath_beacon_miss()
408 	if (if_ath_alq_checkdebug(&sc->sc_alq, ATH_ALQ_MISSED_BEACON))  in ath_beacon_miss()
409 		if_ath_alq_post(&sc->sc_alq, ATH_ALQ_MISSED_BEACON, 0, NULL);  in ath_beacon_miss()
433 	struct ath_hal *ah = sc->sc_ah;  in ath_beacon_proc()
448 	if (ath_hal_numtxpending(ah, sc->sc_bhalq) != 0) {  in ath_beacon_proc()
450 		sc->sc_bmisscount++;  in ath_beacon_proc()
451 		sc->sc_stats.ast_be_missed++;  in ath_beacon_proc()
456 			__func__, sc->sc_bmisscount);  in ath_beacon_proc()
457 		if (sc->sc_bmisscount >= ath_bstuck_threshold)  in ath_beacon_proc()
458 			taskqueue_enqueue(sc->sc_tq, &sc->sc_bstucktask);  in ath_beacon_proc()
461 	if (sc->sc_bmisscount != 0) {  in ath_beacon_proc()
464 			__func__, sc->sc_bmisscount);  in ath_beacon_proc()
465 		sc->sc_bmisscount = 0;  in ath_beacon_proc()
467 		if (if_ath_alq_checkdebug(&sc->sc_alq, ATH_ALQ_RESUME_BEACON))  in ath_beacon_proc()
468 			if_ath_alq_post(&sc->sc_alq, ATH_ALQ_RESUME_BEACON, 0, NULL);  in ath_beacon_proc()
472 	if (sc->sc_stagbeacons) {			/* staggered beacons */  in ath_beacon_proc()
473 		struct ieee80211com *ic = &sc->sc_ic;  in ath_beacon_proc()
478 		slot = ((tsftu % ic->ic_lintval) * ATH_BCBUF) / ic->ic_lintval;  in ath_beacon_proc()
479 		vap = sc->sc_bslot[(slot+1) % ATH_BCBUF];  in ath_beacon_proc()
481 		if (vap != NULL && vap->iv_state >= IEEE80211_S_RUN) {  in ath_beacon_proc()
484 				bfaddr = bf->bf_daddr;  in ath_beacon_proc()
490 			vap = sc->sc_bslot[slot];  in ath_beacon_proc()
491 			if (vap != NULL && vap->iv_state >= IEEE80211_S_RUN) {  in ath_beacon_proc()
495 				 * otherwise it won't work for EDMA chipsets!  in ath_beacon_proc()
499 					*bflink = bf->bf_daddr;  in ath_beacon_proc()
500 					ath_hal_gettxdesclinkptr(sc->sc_ah,  in ath_beacon_proc()
501 					    bf->bf_desc, &bflink);  in ath_beacon_proc()
507 		 * otherwise it won't work for EDMA chipsets!  in ath_beacon_proc()
513 	 * Handle slot time change when a non-ERP station joins/leaves  in ath_beacon_proc()
520 	if (sc->sc_updateslot == UPDATE) {  in ath_beacon_proc()
521 		sc->sc_updateslot = COMMIT;	/* commit next beacon */  in ath_beacon_proc()
522 		sc->sc_slotupdate = slot;  in ath_beacon_proc()
523 	} else if (sc->sc_updateslot == COMMIT && sc->sc_slotupdate == slot)  in ath_beacon_proc()
527 	 * Check recent per-antenna transmit statistics and flip  in ath_beacon_proc()
529 	 * on the non-default antenna.  in ath_beacon_proc()
532 	if (!sc->sc_diversity && (!sc->sc_stagbeacons || slot == 0)) {  in ath_beacon_proc()
533 		otherant = sc->sc_defant & 1 ? 2 : 1;  in ath_beacon_proc()
534 		if (sc->sc_ant_tx[otherant] > sc->sc_ant_tx[sc->sc_defant] + 2)  in ath_beacon_proc()
536 		sc->sc_ant_tx[1] = sc->sc_ant_tx[2] = 0;  in ath_beacon_proc()
540 	ATH_TXQ_LOCK(sc->sc_cabq);  in ath_beacon_proc()
542 	ATH_TXQ_UNLOCK(sc->sc_cabq);  in ath_beacon_proc()
551 		if (! sc->sc_isedma) {  in ath_beacon_proc()
552 			if (!ath_hal_stoptxdma(ah, sc->sc_bhalq)) {  in ath_beacon_proc()
555 					__func__, sc->sc_bhalq);  in ath_beacon_proc()
560 		ath_hal_puttxbuf(ah, sc->sc_bhalq, bfaddr);  in ath_beacon_proc()
561 		ath_hal_txstart(ah, sc->sc_bhalq);  in ath_beacon_proc()
563 		sc->sc_stats.ast_be_xmit++;  in ath_beacon_proc()
571 	struct ath_txq *cabq = sc->sc_cabq;  in ath_beacon_cabq_start_edma()
579 	if (TAILQ_EMPTY(&cabq->axq_q))  in ath_beacon_cabq_start_edma()
581 	bf = TAILQ_FIRST(&cabq->axq_q);  in ath_beacon_cabq_start_edma()
582 	bf_last = TAILQ_LAST(&cabq->axq_q, axq_q_s);  in ath_beacon_cabq_start_edma()
588 	 * This ideally should live in the EDMA code file  in ath_beacon_cabq_start_edma()
592 	 * We can't treat this like a normal TX queue because  in ath_beacon_cabq_start_edma()
593 	 * in the case of multi-VAP traffic, we may have to flush  in ath_beacon_cabq_start_edma()
595 	 * But for non-staggered beacons, we could in theory  in ath_beacon_cabq_start_edma()
598 	 * how to correctly/better handle multi-VAP CABQ traffic  in ath_beacon_cabq_start_edma()
599 	 * with EDMA.  in ath_beacon_cabq_start_edma()
608 	if (cabq->axq_fifo_depth >= HAL_TXFIFO_DEPTH) {  in ath_beacon_cabq_start_edma()
609 		device_printf(sc->sc_dev,  in ath_beacon_cabq_start_edma()
612 		    cabq->axq_qnum,  in ath_beacon_cabq_start_edma()
613 		    cabq->axq_fifo_depth);  in ath_beacon_cabq_start_edma()
625 	bf->bf_flags |= ATH_BUF_FIFOPTR;  in ath_beacon_cabq_start_edma()
626 	bf_last->bf_flags |= ATH_BUF_FIFOEND;  in ath_beacon_cabq_start_edma()
630 	TAILQ_FOREACH(bfi, &cabq->axq_q, bf_list) {  in ath_beacon_cabq_start_edma()
631 		ath_printtxbuf(sc, bf, cabq->axq_qnum, i, 0);  in ath_beacon_cabq_start_edma()
642 	TAILQ_CONCAT(&cabq->fifo.axq_q, &cabq->axq_q, bf_list);  in ath_beacon_cabq_start_edma()
643 	cabq->axq_link = NULL;  in ath_beacon_cabq_start_edma()
644 	cabq->fifo.axq_depth += cabq->axq_depth;  in ath_beacon_cabq_start_edma()
645 	cabq->axq_depth = 0;  in ath_beacon_cabq_start_edma()
648 	cabq->axq_fifo_depth++;  in ath_beacon_cabq_start_edma()
651 	ath_hal_puttxbuf(sc->sc_ah, cabq->axq_qnum, bf->bf_daddr);  in ath_beacon_cabq_start_edma()
652 	cabq->axq_flags |= ATH_TXQ_PUTRUNNING;  in ath_beacon_cabq_start_edma()
655 	ath_hal_txstart(sc->sc_ah, cabq->axq_qnum);  in ath_beacon_cabq_start_edma()
663 	struct ath_txq *cabq = sc->sc_cabq;  in ath_beacon_cabq_start_legacy()
666 	if (TAILQ_EMPTY(&cabq->axq_q))  in ath_beacon_cabq_start_legacy()
668 	bf = TAILQ_FIRST(&cabq->axq_q);  in ath_beacon_cabq_start_legacy()
671 	ath_hal_puttxbuf(sc->sc_ah, cabq->axq_qnum, bf->bf_daddr);  in ath_beacon_cabq_start_legacy()
672 	cabq->axq_flags |= ATH_TXQ_PUTRUNNING;  in ath_beacon_cabq_start_legacy()
675 	ath_hal_txstart(sc->sc_ah, cabq->axq_qnum);  in ath_beacon_cabq_start_legacy()
679  * Start CABQ transmission - this assumes that all frames are prepped
685 	struct ath_txq *cabq = sc->sc_cabq;  in ath_beacon_cabq_start()
689 	if (TAILQ_EMPTY(&cabq->axq_q))  in ath_beacon_cabq_start()
692 	if (sc->sc_isedma)  in ath_beacon_cabq_start()
702 	struct ath_txq *cabq = sc->sc_cabq;  in ath_beacon_generate()
707 	KASSERT(vap->iv_state >= IEEE80211_S_RUN,  in ath_beacon_generate()
708 	    ("not running, state %d", vap->iv_state));  in ath_beacon_generate()
709 	KASSERT(avp->av_bcbuf != NULL, ("no beacon buffer"));  in ath_beacon_generate()
713 	 * non-zero then we need to remap the memory because  in ath_beacon_generate()
717 	bf = avp->av_bcbuf;  in ath_beacon_generate()
718 	m = bf->bf_m;  in ath_beacon_generate()
720 	nmcastq = avp->av_mcastq.axq_depth;  in ath_beacon_generate()
722 	if (ieee80211_beacon_update(bf->bf_node, m, nmcastq)) {  in ath_beacon_generate()
724 		bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);  in ath_beacon_generate()
725 		error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m,  in ath_beacon_generate()
726 					     bf->bf_segs, &bf->bf_nseg,  in ath_beacon_generate()
729 			if_printf(vap->iv_ifp,  in ath_beacon_generate()
735 	if ((vap->iv_bcn_off.bo_tim[4] & 1) && cabq->axq_depth) {  in ath_beacon_generate()
738 		    __func__, nmcastq, cabq->axq_depth);  in ath_beacon_generate()
739 		sc->sc_stats.ast_cabq_busy++;  in ath_beacon_generate()
740 		if (sc->sc_nvaps > 1 && sc->sc_stagbeacons) {  in ath_beacon_generate()
749 			 * XXX TODO: this doesn't stop CABQ DMA - it assumes  in ath_beacon_generate()
759 			 * XXX can we even stop TX DMA here? Check what the  in ath_beacon_generate()
761 			 * that stopping TX requires RX is paused.  in ath_beacon_generate()
767 	bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE);  in ath_beacon_generate()
779 	if (vap->iv_bcn_off.bo_tim[4] & 1) {  in ath_beacon_generate()
781 		ATH_TXQ_LOCK(&avp->av_mcastq);  in ath_beacon_generate()
794 			bfm = TAILQ_FIRST(&avp->av_mcastq.axq_q);  in ath_beacon_generate()
801 			 * EDMA descriptors require some recalculation  in ath_beacon_generate()
806 				ath_hal_settxdesclink(sc->sc_ah,  in ath_beacon_generate()
807 				    bfc_last->bf_lastds,  in ath_beacon_generate()
808 				    bfm->bf_daddr);  in ath_beacon_generate()
810 			ath_txqmove(cabq, &avp->av_mcastq);  in ath_beacon_generate()
814 			 * queue frame arrived before we grabbed the TX  in ath_beacon_generate()
817 			sc->sc_stats.ast_cabq_xmit += nmcastq;  in ath_beacon_generate()
819 		ATH_TXQ_UNLOCK(&avp->av_mcastq);  in ath_beacon_generate()
828 	struct ath_hal *ah = sc->sc_ah;  in ath_beacon_start_adhoc()
833 	KASSERT(avp->av_bcbuf != NULL, ("no beacon buffer"));  in ath_beacon_start_adhoc()
837 	 * non-zero then we need to remap the memory because  in ath_beacon_start_adhoc()
841 	bf = avp->av_bcbuf;  in ath_beacon_start_adhoc()
842 	m = bf->bf_m;  in ath_beacon_start_adhoc()
843 	if (ieee80211_beacon_update(bf->bf_node, m, 0)) {  in ath_beacon_start_adhoc()
845 		bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);  in ath_beacon_start_adhoc()
846 		error = bus_dmamap_load_mbuf_sg(sc->sc_dmat, bf->bf_dmamap, m,  in ath_beacon_start_adhoc()
847 					     bf->bf_segs, &bf->bf_nseg,  in ath_beacon_start_adhoc()
850 			if_printf(vap->iv_ifp,  in ath_beacon_start_adhoc()
857 	bus_dmamap_sync(sc->sc_dmat, bf->bf_dmamap, BUS_DMASYNC_PREWRITE);  in ath_beacon_start_adhoc()
859 	/* NB: caller is known to have already stopped tx dma */  in ath_beacon_start_adhoc()
860 	ath_hal_puttxbuf(ah, sc->sc_bhalq, bf->bf_daddr);  in ath_beacon_start_adhoc()
861 	ath_hal_txstart(ah, sc->sc_bhalq);  in ath_beacon_start_adhoc()
872 	    __func__, bf, bf->bf_m, bf->bf_node);  in ath_beacon_return()
873 	if (bf->bf_m != NULL) {  in ath_beacon_return()
874 		bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);  in ath_beacon_return()
875 		m_freem(bf->bf_m);  in ath_beacon_return()
876 		bf->bf_m = NULL;  in ath_beacon_return()
878 	if (bf->bf_node != NULL) {  in ath_beacon_return()
879 		ieee80211_free_node(bf->bf_node);  in ath_beacon_return()
880 		bf->bf_node = NULL;  in ath_beacon_return()
882 	TAILQ_INSERT_TAIL(&sc->sc_bbuf, bf, bf_list);  in ath_beacon_return()
893 	TAILQ_FOREACH(bf, &sc->sc_bbuf, bf_list) {  in ath_beacon_free()
896 		        __func__, bf, bf->bf_m, bf->bf_node);  in ath_beacon_free()
897 		if (bf->bf_m != NULL) {  in ath_beacon_free()
898 			bus_dmamap_unload(sc->sc_dmat, bf->bf_dmamap);  in ath_beacon_free()
899 			m_freem(bf->bf_m);  in ath_beacon_free()
900 			bf->bf_m = NULL;  in ath_beacon_free()
902 		if (bf->bf_node != NULL) {  in ath_beacon_free()
903 			ieee80211_free_node(bf->bf_node);  in ath_beacon_free()
904 			bf->bf_node = NULL;  in ath_beacon_free()
930 	struct ath_hal *ah = sc->sc_ah;  in ath_beacon_config()
932 	struct ieee80211com *ic = &sc->sc_ic;  in ath_beacon_config()
948 		TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {  in ath_beacon_config()
950 			if ((vap->iv_opmode == IEEE80211_M_STA) &&  in ath_beacon_config()
951 			    ((vap->iv_flags_ext & IEEE80211_FEXT_SWBMISS) != 0))  in ath_beacon_config()
959 		device_printf(sc->sc_dev, "called with no valid vaps?\n");  in ath_beacon_config()
963 	if ((vap->iv_flags_ext & IEEE80211_FEXT_SWBMISS) != 0) {  in ath_beacon_config()
964 		device_printf(sc->sc_dev, "called on VAP with SWBMISS set?\n");  in ath_beacon_config()
971 	ni = ieee80211_ref_node(vap->iv_bss);  in ath_beacon_config()
979 	memset(&avp->quiet_ie, 0, sizeof(avp->quiet_ie));  in ath_beacon_config()
982 	nexttbtt = TSF_TO_TU(le32dec(ni->ni_tstamp.data + 4),  in ath_beacon_config()
983 			     le32dec(ni->ni_tstamp.data));  in ath_beacon_config()
985 	tsf_beacon = ((uint64_t) le32dec(ni->ni_tstamp.data + 4)) << 32;  in ath_beacon_config()
986 	tsf_beacon |= le32dec(ni->ni_tstamp.data);  in ath_beacon_config()
988 	if (ic->ic_opmode == IEEE80211_M_HOSTAP ||  in ath_beacon_config()
989 	    ic->ic_opmode == IEEE80211_M_MBSS) {  in ath_beacon_config()
991 		 * For multi-bss ap/mesh support beacons are either staggered  in ath_beacon_config()
997 		intval = ni->ni_intval & HAL_BEACON_PERIOD;  in ath_beacon_config()
998 		if (sc->sc_stagbeacons)  in ath_beacon_config()
1002 		intval = ni->ni_intval & HAL_BEACON_PERIOD;  in ath_beacon_config()
1015 	 * The specification (802.11-2012 10.1.3.2 - Beacon Generation in  in ath_beacon_config()
1026 	if (ic->ic_opmode == IEEE80211_M_STA && !sc->sc_swbmiss) {  in ath_beacon_config()
1035 		dtimperiod = ni->ni_dtim_period;  in ath_beacon_config()
1038 		dtimcount = ni->ni_dtim_count;  in ath_beacon_config()
1062 		    (long long) tsf -  in ath_beacon_config()
1069 		    (long long) ((long long) nexttbtt * 1024LL) - (long long) tsf_beacon);  in ath_beacon_config()
1077 			remainder = (nexttbtt - tsftu) % intval;  in ath_beacon_config()
1080 			countdiff = (oldtbtt - nexttbtt) / intval % dtimperiod;  in ath_beacon_config()
1082 				dtimcount -= countdiff;  in ath_beacon_config()
1084 				dtimcount += dtimperiod - countdiff;  in ath_beacon_config()
1090 			remainder = (tsftu - nexttbtt) % intval;  in ath_beacon_config()
1091 			nexttbtt = tsftu - remainder + intval;  in ath_beacon_config()
1092 			countdiff = (nexttbtt - oldtbtt) / intval % dtimperiod;  in ath_beacon_config()
1094 				dtimcount -= countdiff;  in ath_beacon_config()
1096 				dtimcount += dtimperiod - countdiff;  in ath_beacon_config()
1104 		    (long long) ((long long)nexttbtt * 1024LL) - (long long)tsf);  in ath_beacon_config()
1124 		bs.bs_timoffset = ni->ni_timoff;  in ath_beacon_config()
1131 		bs.bs_bmissthreshold = vap->iv_bmissthreshold;  in ath_beacon_config()
1171 		sc->sc_imask |= HAL_INT_BMISS;  in ath_beacon_config()
1172 		ath_hal_intrset(ah, sc->sc_imask);  in ath_beacon_config()
1177 		if (ic->ic_opmode == IEEE80211_M_IBSS) {  in ath_beacon_config()
1182 			 * self-linked tx descriptor and let the hardware  in ath_beacon_config()
1186 			if (!sc->sc_hasveol)  in ath_beacon_config()
1187 				sc->sc_imask |= HAL_INT_SWBA;  in ath_beacon_config()
1200 		} else if (ic->ic_opmode == IEEE80211_M_HOSTAP ||  in ath_beacon_config()
1201 		    ic->ic_opmode == IEEE80211_M_MBSS) {  in ath_beacon_config()
1207 			sc->sc_imask |= HAL_INT_SWBA;	/* beacon prepare */  in ath_beacon_config()
1212 		 * Now dirty things because for now, the EDMA HAL has  in ath_beacon_config()
1215 		if (sc->sc_isedma) {  in ath_beacon_config()
1225 		sc->sc_bmisscount = 0;  in ath_beacon_config()
1226 		ath_hal_intrset(ah, sc->sc_imask);  in ath_beacon_config()
1228 		 * When using a self-linked beacon descriptor in  in ath_beacon_config()
1231 		if (ic->ic_opmode == IEEE80211_M_IBSS && sc->sc_hasveol)  in ath_beacon_config()
1239 	    __func__, nexttbtt, intval, ni->ni_intval,  in ath_beacon_config()
1242 	    (long long) tsf -  in ath_beacon_config()