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-rw-r--r--package/mac80211/patches/561-ath9k_fix_staggered_beacons.patch317
1 files changed, 317 insertions, 0 deletions
diff --git a/package/mac80211/patches/561-ath9k_fix_staggered_beacons.patch b/package/mac80211/patches/561-ath9k_fix_staggered_beacons.patch
new file mode 100644
index 000000000..08f91258f
--- /dev/null
+++ b/package/mac80211/patches/561-ath9k_fix_staggered_beacons.patch
@@ -0,0 +1,317 @@
+--- a/drivers/net/wireless/ath/ath9k/beacon.c
++++ b/drivers/net/wireless/ath/ath9k/beacon.c
+@@ -57,8 +57,8 @@ int ath_beaconq_config(struct ath_softc
+
+ /*
+ * Associates the beacon frame buffer with a transmit descriptor. Will set
+- * up all required antenna switch parameters, rate codes, and channel flags.
+- * Beacons are always sent out at the lowest rate, and are not retried.
++ * up rate codes, and channel flags. Beacons are always sent out at the
++ * lowest rate, and are not retried.
+ */
+ static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp,
+ struct ath_buf *bf, int rateidx)
+@@ -68,7 +68,7 @@ static void ath_beacon_setup(struct ath_
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ath_desc *ds;
+ struct ath9k_11n_rate_series series[4];
+- int flags, antenna, ctsrate = 0, ctsduration = 0;
++ int flags, ctsrate = 0, ctsduration = 0;
+ struct ieee80211_supported_band *sband;
+ u8 rate = 0;
+
+@@ -76,12 +76,6 @@ static void ath_beacon_setup(struct ath_
+ flags = ATH9K_TXDESC_NOACK;
+
+ ds->ds_link = 0;
+- /*
+- * Switch antenna every beacon.
+- * Should only switch every beacon period, not for every SWBA
+- * XXX assumes two antennae
+- */
+- antenna = ((sc->beacon.ast_be_xmit / sc->nbcnvifs) & 1 ? 2 : 1);
+
+ sband = &sc->sbands[common->hw->conf.channel->band];
+ rate = sband->bitrates[rateidx].hw_value;
+@@ -278,7 +272,7 @@ int ath_beacon_alloc(struct ath_softc *s
+ return -ENOMEM;
+
+ tstamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
+- sc->beacon.bc_tstamp = le64_to_cpu(tstamp);
++ sc->beacon.bc_tstamp = (u32) le64_to_cpu(tstamp);
+ /* Calculate a TSF adjustment factor required for staggered beacons. */
+ if (avp->av_bslot > 0) {
+ u64 tsfadjust;
+@@ -294,8 +288,8 @@ int ath_beacon_alloc(struct ath_softc *s
+ * adjustment. Other slots are adjusted to get the timestamp
+ * close to the TBTT for the BSS.
+ */
+- tsfadjust = intval * avp->av_bslot / ATH_BCBUF;
+- avp->tsf_adjust = cpu_to_le64(TU_TO_USEC(tsfadjust));
++ tsfadjust = TU_TO_USEC(intval * avp->av_bslot) / ATH_BCBUF;
++ avp->tsf_adjust = cpu_to_le64(tsfadjust);
+
+ ath_dbg(common, ATH_DBG_BEACON,
+ "stagger beacons, bslot %d intval %u tsfadjust %llu\n",
+@@ -401,8 +395,9 @@ void ath_beacon_tasklet(unsigned long da
+ intval = cur_conf->beacon_interval ? : ATH_DEFAULT_BINTVAL;
+
+ tsf = ath9k_hw_gettsf64(ah);
+- tsftu = TSF_TO_TU(tsf>>32, tsf);
+- slot = ((tsftu % intval) * ATH_BCBUF) / intval;
++ tsf += TU_TO_USEC(ah->config.sw_beacon_response_time);
++ tsftu = TSF_TO_TU((tsf * ATH_BCBUF) >>32, tsf * ATH_BCBUF);
++ slot = (tsftu % (intval * ATH_BCBUF)) / intval;
+ /*
+ * Reverse the slot order to get slot 0 on the TBTT offset that does
+ * not require TSF adjustment and other slots adding
+@@ -415,7 +410,7 @@ void ath_beacon_tasklet(unsigned long da
+
+ ath_dbg(common, ATH_DBG_BEACON,
+ "slot %d [tsf %llu tsftu %u intval %u] vif %p\n",
+- slot, tsf, tsftu, intval, vif);
++ slot, tsf, tsftu / ATH_BCBUF, intval, vif);
+
+ bfaddr = 0;
+ if (vif) {
+@@ -463,13 +458,17 @@ static void ath9k_beacon_init(struct ath
+ u32 next_beacon,
+ u32 beacon_period)
+ {
+- if (beacon_period & ATH9K_BEACON_RESET_TSF)
++ if (sc->sc_flags & SC_OP_TSF_RESET) {
+ ath9k_ps_wakeup(sc);
++ ath9k_hw_reset_tsf(sc->sc_ah);
++ }
+
+ ath9k_hw_beaconinit(sc->sc_ah, next_beacon, beacon_period);
+
+- if (beacon_period & ATH9K_BEACON_RESET_TSF)
++ if (sc->sc_flags & SC_OP_TSF_RESET) {
+ ath9k_ps_restore(sc);
++ sc->sc_flags &= ~SC_OP_TSF_RESET;
++ }
+ }
+
+ /*
+@@ -484,18 +483,14 @@ static void ath_beacon_config_ap(struct
+ u32 nexttbtt, intval;
+
+ /* NB: the beacon interval is kept internally in TU's */
+- intval = conf->beacon_interval & ATH9K_BEACON_PERIOD;
++ intval = TU_TO_USEC(conf->beacon_interval & ATH9K_BEACON_PERIOD);
+ intval /= ATH_BCBUF; /* for staggered beacons */
+ nexttbtt = intval;
+
+- if (sc->sc_flags & SC_OP_TSF_RESET)
+- intval |= ATH9K_BEACON_RESET_TSF;
+-
+ /*
+ * In AP mode we enable the beacon timers and SWBA interrupts to
+ * prepare beacon frames.
+ */
+- intval |= ATH9K_BEACON_ENA;
+ ah->imask |= ATH9K_INT_SWBA;
+ ath_beaconq_config(sc);
+
+@@ -505,11 +500,6 @@ static void ath_beacon_config_ap(struct
+ ath9k_beacon_init(sc, nexttbtt, intval);
+ sc->beacon.bmisscnt = 0;
+ ath9k_hw_set_interrupts(ah, ah->imask);
+-
+- /* Clear the reset TSF flag, so that subsequent beacon updation
+- will not reset the HW TSF. */
+-
+- sc->sc_flags &= ~SC_OP_TSF_RESET;
+ }
+
+ /*
+@@ -643,25 +633,20 @@ static void ath_beacon_config_adhoc(stru
+ {
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+- u64 tsf;
+- u32 tsftu, intval, nexttbtt;
+-
+- intval = conf->beacon_interval & ATH9K_BEACON_PERIOD;
+-
++ u32 tsf, delta, intval, nexttbtt;
+
+- /* Pull nexttbtt forward to reflect the current TSF */
++ tsf = ath9k_hw_gettsf32(ah) + TU_TO_USEC(FUDGE);
++ intval = TU_TO_USEC(conf->beacon_interval & ATH9K_BEACON_PERIOD);
+
+- nexttbtt = TSF_TO_TU(sc->beacon.bc_tstamp >> 32, sc->beacon.bc_tstamp);
+- if (nexttbtt == 0)
+- nexttbtt = intval;
+- else if (intval)
+- nexttbtt = roundup(nexttbtt, intval);
+-
+- tsf = ath9k_hw_gettsf64(ah);
+- tsftu = TSF_TO_TU((u32)(tsf>>32), (u32)tsf) + FUDGE;
+- do {
+- nexttbtt += intval;
+- } while (nexttbtt < tsftu);
++ if (!sc->beacon.bc_tstamp)
++ nexttbtt = tsf + intval;
++ else {
++ if (tsf > sc->beacon.bc_tstamp)
++ delta = (tsf - sc->beacon.bc_tstamp);
++ else
++ delta = (tsf + 1 + (~0U - sc->beacon.bc_tstamp));
++ nexttbtt = tsf + roundup(delta, intval);
++ }
+
+ ath_dbg(common, ATH_DBG_BEACON,
+ "IBSS nexttbtt %u intval %u (%u)\n",
+@@ -672,7 +657,6 @@ static void ath_beacon_config_adhoc(stru
+ * if we need to manually prepare beacon frames. Otherwise we use a
+ * self-linked tx descriptor and let the hardware deal with things.
+ */
+- intval |= ATH9K_BEACON_ENA;
+ ah->imask |= ATH9K_INT_SWBA;
+
+ ath_beaconq_config(sc);
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -1706,21 +1706,15 @@ void ath9k_hw_beaconinit(struct ath_hw *
+ case NL80211_IFTYPE_MESH_POINT:
+ REG_SET_BIT(ah, AR_TXCFG,
+ AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
+- REG_WRITE(ah, AR_NEXT_NDP_TIMER,
+- TU_TO_USEC(next_beacon +
+- (ah->atim_window ? ah->
+- atim_window : 1)));
++ REG_WRITE(ah, AR_NEXT_NDP_TIMER, next_beacon +
++ TU_TO_USEC(ah->atim_window ? ah->atim_window : 1));
+ flags |= AR_NDP_TIMER_EN;
+ case NL80211_IFTYPE_AP:
+- REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
+- REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT,
+- TU_TO_USEC(next_beacon -
+- ah->config.
+- dma_beacon_response_time));
+- REG_WRITE(ah, AR_NEXT_SWBA,
+- TU_TO_USEC(next_beacon -
+- ah->config.
+- sw_beacon_response_time));
++ REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
++ REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
++ TU_TO_USEC(ah->config.dma_beacon_response_time));
++ REG_WRITE(ah, AR_NEXT_SWBA, next_beacon -
++ TU_TO_USEC(ah->config.sw_beacon_response_time));
+ flags |=
+ AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
+ break;
+@@ -1732,18 +1726,13 @@ void ath9k_hw_beaconinit(struct ath_hw *
+ break;
+ }
+
+- REG_WRITE(ah, AR_BEACON_PERIOD, TU_TO_USEC(beacon_period));
+- REG_WRITE(ah, AR_DMA_BEACON_PERIOD, TU_TO_USEC(beacon_period));
+- REG_WRITE(ah, AR_SWBA_PERIOD, TU_TO_USEC(beacon_period));
+- REG_WRITE(ah, AR_NDP_PERIOD, TU_TO_USEC(beacon_period));
++ REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period);
++ REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period);
++ REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period);
++ REG_WRITE(ah, AR_NDP_PERIOD, beacon_period);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+
+- beacon_period &= ~ATH9K_BEACON_ENA;
+- if (beacon_period & ATH9K_BEACON_RESET_TSF) {
+- ath9k_hw_reset_tsf(ah);
+- }
+-
+ REG_SET_BIT(ah, AR_TIMER_MODE, flags);
+ }
+ EXPORT_SYMBOL(ath9k_hw_beaconinit);
+@@ -2404,10 +2393,11 @@ static u32 rightmost_index(struct ath_ge
+ return timer_table->gen_timer_index[b];
+ }
+
+-static u32 ath9k_hw_gettsf32(struct ath_hw *ah)
++u32 ath9k_hw_gettsf32(struct ath_hw *ah)
+ {
+ return REG_READ(ah, AR_TSF_L32);
+ }
++EXPORT_SYMBOL(ath9k_hw_gettsf32);
+
+ struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
+ void (*trigger)(void *),
+--- a/drivers/net/wireless/ath/ath9k/ath9k.h
++++ b/drivers/net/wireless/ath/ath9k/ath9k.h
+@@ -392,7 +392,7 @@ struct ath_beacon {
+ u32 beaconq;
+ u32 bmisscnt;
+ u32 ast_be_xmit;
+- u64 bc_tstamp;
++ u32 bc_tstamp;
+ struct ieee80211_vif *bslot[ATH_BCBUF];
+ int slottime;
+ int slotupdate;
+--- a/drivers/net/wireless/ath/ath9k/hw.h
++++ b/drivers/net/wireless/ath/ath9k/hw.h
+@@ -412,8 +412,6 @@ struct ath9k_beacon_state {
+ u32 bs_nextdtim;
+ u32 bs_intval;
+ #define ATH9K_BEACON_PERIOD 0x0000ffff
+-#define ATH9K_BEACON_ENA 0x00800000
+-#define ATH9K_BEACON_RESET_TSF 0x01000000
+ #define ATH9K_TSFOOR_THRESHOLD 0x00004240 /* 16k us */
+ u32 bs_dtimperiod;
+ u16 bs_cfpperiod;
+@@ -927,6 +925,7 @@ void ath9k_hw_setopmode(struct ath_hw *a
+ void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1);
+ void ath9k_hw_setbssidmask(struct ath_hw *ah);
+ void ath9k_hw_write_associd(struct ath_hw *ah);
++u32 ath9k_hw_gettsf32(struct ath_hw *ah);
+ u64 ath9k_hw_gettsf64(struct ath_hw *ah);
+ void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64);
+ void ath9k_hw_reset_tsf(struct ath_hw *ah);
+--- a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
++++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
+@@ -155,7 +155,7 @@ static void ath9k_htc_beacon_config_ap(s
+ nexttbtt = intval;
+
+ if (priv->op_flags & OP_TSF_RESET) {
+- intval |= ATH9K_BEACON_RESET_TSF;
++ ath9k_hw_reset_tsf(priv->ah);
+ priv->op_flags &= ~OP_TSF_RESET;
+ } else {
+ /*
+@@ -168,8 +168,6 @@ static void ath9k_htc_beacon_config_ap(s
+ } while (nexttbtt < tsftu);
+ }
+
+- intval |= ATH9K_BEACON_ENA;
+-
+ if (priv->op_flags & OP_ENABLE_BEACON)
+ imask |= ATH9K_INT_SWBA;
+
+@@ -178,7 +176,7 @@ static void ath9k_htc_beacon_config_ap(s
+ bss_conf->beacon_interval, nexttbtt, imask);
+
+ WMI_CMD(WMI_DISABLE_INTR_CMDID);
+- ath9k_hw_beaconinit(priv->ah, nexttbtt, intval);
++ ath9k_hw_beaconinit(priv->ah, TU_TO_USEC(nexttbtt), TU_TO_USEC(intval));
+ priv->bmiss_cnt = 0;
+ htc_imask = cpu_to_be32(imask);
+ WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
+@@ -207,7 +205,6 @@ static void ath9k_htc_beacon_config_adho
+ nexttbtt += intval;
+ } while (nexttbtt < tsftu);
+
+- intval |= ATH9K_BEACON_ENA;
+ if (priv->op_flags & OP_ENABLE_BEACON)
+ imask |= ATH9K_INT_SWBA;
+
+@@ -216,7 +213,7 @@ static void ath9k_htc_beacon_config_adho
+ bss_conf->beacon_interval, nexttbtt, imask);
+
+ WMI_CMD(WMI_DISABLE_INTR_CMDID);
+- ath9k_hw_beaconinit(priv->ah, nexttbtt, intval);
++ ath9k_hw_beaconinit(priv->ah, TU_TO_USEC(nexttbtt), TU_TO_USEC(intval));
+ priv->bmiss_cnt = 0;
+ htc_imask = cpu_to_be32(imask);
+ WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 07:31:38 +0000