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-rw-r--r--drivers/net/wireless/ath/ath9k/ath9k.h2
-rw-r--r--drivers/net/wireless/ath/ath9k/beacon.c21
-rw-r--r--drivers/net/wireless/ath/ath9k/init.c1
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c17
-rw-r--r--drivers/net/wireless/ath/ath9k/xmit.c2
5 files changed, 43 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index df1c4957e3f0..8519e75a2e79 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -420,6 +420,7 @@ void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif);
void ath9k_set_beacon(struct ath_softc *sc);
+bool ath9k_csa_is_finished(struct ath_softc *sc);
/*******************/
/* Link Monitoring */
@@ -756,6 +757,7 @@ struct ath_softc {
#endif
struct ath_descdma txsdma;
+ struct ieee80211_vif *csa_vif;
struct ath_ant_comb ant_comb;
u8 ant_tx, ant_rx;
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 1a17732bb089..b5c16b3a37b9 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -291,6 +291,23 @@ void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif)
(unsigned long long)tsfadjust, avp->av_bslot);
}
+bool ath9k_csa_is_finished(struct ath_softc *sc)
+{
+ struct ieee80211_vif *vif;
+
+ vif = sc->csa_vif;
+ if (!vif || !vif->csa_active)
+ return false;
+
+ if (!ieee80211_csa_is_complete(vif))
+ return false;
+
+ ieee80211_csa_finish(vif);
+
+ sc->csa_vif = NULL;
+ return true;
+}
+
void ath9k_beacon_tasklet(unsigned long data)
{
struct ath_softc *sc = (struct ath_softc *)data;
@@ -336,6 +353,10 @@ void ath9k_beacon_tasklet(unsigned long data)
return;
}
+ /* EDMA devices check that in the tx completion function. */
+ if (!edma && ath9k_csa_is_finished(sc))
+ return;
+
slot = ath9k_beacon_choose_slot(sc);
vif = sc->beacon.bslot[slot];
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 60bb4d6f1d82..abf1eb5d97ad 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -861,6 +861,7 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_5_10_MHZ;
+ hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
#ifdef CONFIG_PM_SLEEP
if ((ah->caps.hw_caps & ATH9K_HW_WOW_DEVICE_CAPABLE) &&
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index ba382a8c8b9a..ac9f18fa0729 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1032,6 +1032,9 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw,
if (ath9k_uses_beacons(vif->type))
ath9k_beacon_remove_slot(sc, vif);
+ if (sc->csa_vif == vif)
+ sc->csa_vif = NULL;
+
ath9k_ps_wakeup(sc);
ath9k_calculate_summary_state(hw, NULL);
ath9k_ps_restore(sc);
@@ -2318,6 +2321,19 @@ static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
clear_bit(SC_OP_SCANNING, &sc->sc_flags);
}
+static void ath9k_channel_switch_beacon(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct cfg80211_chan_def *chandef)
+{
+ struct ath_softc *sc = hw->priv;
+
+ /* mac80211 does not support CSA in multi-if cases (yet) */
+ if (WARN_ON(sc->csa_vif))
+ return;
+
+ sc->csa_vif = vif;
+}
+
struct ieee80211_ops ath9k_ops = {
.tx = ath9k_tx,
.start = ath9k_start,
@@ -2365,4 +2381,5 @@ struct ieee80211_ops ath9k_ops = {
#endif
.sw_scan_start = ath9k_sw_scan_start,
.sw_scan_complete = ath9k_sw_scan_complete,
+ .channel_switch_beacon = ath9k_channel_switch_beacon,
};
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 7223e303f3a1..35b515fe3ffa 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -2559,6 +2559,8 @@ void ath_tx_edma_tasklet(struct ath_softc *sc)
if (ts.qid == sc->beacon.beaconq) {
sc->beacon.tx_processed = true;
sc->beacon.tx_last = !(ts.ts_status & ATH9K_TXERR_MASK);
+
+ ath9k_csa_is_finished(sc);
continue;
}