Commit f0e44962 authored by Chun-Yeow Yeoh's avatar Chun-Yeow Yeoh Committed by Kalle Valo
Browse files

ath9k_htc: add support of channel switch



Add the support of channel switching functionality, similar
to ath9k support.

Tested with TP-Link TL-WN722N and TL-WN821N.
Signed-off-by: default avatarChun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 5b18ffb2
......@@ -531,6 +531,7 @@ struct ath9k_htc_priv {
struct ath9k_debug debug;
#endif
struct mutex mutex;
struct ieee80211_vif *csa_vif;
};
static inline void ath_read_cachesize(struct ath_common *common, int *csz)
......@@ -584,6 +585,7 @@ void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv);
void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event);
void ath9k_tx_failed_tasklet(unsigned long data);
void ath9k_htc_tx_cleanup_timer(unsigned long data);
bool ath9k_htc_csa_is_finished(struct ath9k_htc_priv *priv);
int ath9k_rx_init(struct ath9k_htc_priv *priv);
void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
......
......@@ -257,6 +257,8 @@ static void ath9k_htc_send_beacon(struct ath9k_htc_priv *priv,
}
spin_unlock_bh(&priv->beacon_lock);
ath9k_htc_csa_is_finished(priv);
}
static int ath9k_htc_choose_bslot(struct ath9k_htc_priv *priv,
......@@ -503,3 +505,20 @@ void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv)
return;
}
}
bool ath9k_htc_csa_is_finished(struct ath9k_htc_priv *priv)
{
struct ieee80211_vif *vif;
vif = priv->csa_vif;
if (!vif || !vif->csa_active)
return false;
if (!ieee80211_csa_is_complete(vif))
return false;
ieee80211_csa_finish(vif);
priv->csa_vif = NULL;
return true;
}
......@@ -744,7 +744,8 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN |
WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
WIPHY_FLAG_HAS_CHANNEL_SWITCH;
hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
......
......@@ -1134,6 +1134,9 @@ static void ath9k_htc_remove_interface(struct ieee80211_hw *hw,
priv->nvifs--;
priv->vif_slot &= ~(1 << avp->index);
if (priv->csa_vif == vif)
priv->csa_vif = NULL;
ath9k_htc_remove_station(priv, vif, NULL);
DEC_VIF(priv, vif->type);
......@@ -1841,6 +1844,19 @@ static int ath9k_htc_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant,
return 0;
}
static void ath9k_htc_channel_switch_beacon(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct cfg80211_chan_def *chandef)
{
struct ath9k_htc_priv *priv = hw->priv;
/* mac80211 does not support CSA in multi-if cases (yet) */
if (WARN_ON(priv->csa_vif))
return;
priv->csa_vif = vif;
}
struct ieee80211_ops ath9k_htc_ops = {
.tx = ath9k_htc_tx,
.start = ath9k_htc_start,
......@@ -1867,6 +1883,7 @@ struct ieee80211_ops ath9k_htc_ops = {
.set_bitrate_mask = ath9k_htc_set_bitrate_mask,
.get_stats = ath9k_htc_get_stats,
.get_antenna = ath9k_htc_get_antenna,
.channel_switch_beacon = ath9k_htc_channel_switch_beacon,
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
.get_et_sset_count = ath9k_htc_get_et_sset_count,
......
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