Add the support of channel switching functionality, similar to ath9k support.
Tested with TP-Link TL-WN722N and TL-WN821N. Signed-off-by: Chun-Yeow Yeoh <[email protected]> --- drivers/net/wireless/ath/ath9k/htc.h | 2 ++ drivers/net/wireless/ath/ath9k/htc_drv_beacon.c | 19 +++++++++++++++++++ drivers/net/wireless/ath/ath9k/htc_drv_init.c | 3 ++- drivers/net/wireless/ath/ath9k/htc_drv_main.c | 17 +++++++++++++++++ 4 files changed, 40 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h index 5dbc617..16dff4b 100644 --- a/drivers/net/wireless/ath/ath9k/htc.h +++ b/drivers/net/wireless/ath/ath9k/htc.h @@ -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); diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c index e8b6ec3..e6bcb4c 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c @@ -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; +} diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c index 7468562..9569010 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c @@ -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; diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index b71f307..dab1323 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c @@ -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, -- 2.3.0 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
