This patch add set_sta_mon_rssi_config api to configure rssi and hysteresis threshold value for a connected station. This configuration will be applied only for the connected station.
Signed-off-by: Tamizh chelvam <[email protected]> --- net/mac80211/cfg.c | 35 +++++++++++++++++++++++++++++++++++ net/mac80211/sta_info.h | 12 ++++++++++++ 2 files changed, 47 insertions(+) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index bdf6fa7..80ced50 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -3803,6 +3803,40 @@ static int ieee80211_get_txq_stats(struct wiphy *wiphy, return ret; } +static int ieee80211_set_sta_mon_rssi_config(struct wiphy *wiphy, + struct net_device *dev, + const u8 *peer, s32 rssi_thold, + u32 rssi_hyst) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct sta_info *sta; + + if (sdata->vif.type == NL80211_IFTYPE_AP && + (!sdata->vif.bss_conf.enable_beacon || + !wiphy_ext_feature_isset(sdata->local->hw.wiphy, + NL80211_EXT_FEATURE_STA_MON_RSSI_CONFIG))) + return -EOPNOTSUPP; + + mutex_lock(&sdata->local->sta_mtx); + + sta = sta_info_get_bss(sdata, peer); + if (!sta) { + mutex_unlock(&sdata->local->sta_mtx); + return -ENOENT; + } + + if (sta->rssi_thold == rssi_thold && + sta->rssi_hyst == rssi_hyst) + goto unlock; + + sta->rssi_thold = rssi_thold; + sta->rssi_hyst = rssi_hyst; + sta->last_sta_mon_event_signal = 0; +unlock: + mutex_unlock(&sdata->local->sta_mtx); + return 0; +} + const struct cfg80211_ops mac80211_config_ops = { .add_virtual_intf = ieee80211_add_iface, .del_virtual_intf = ieee80211_del_iface, @@ -3897,4 +3931,5 @@ static int ieee80211_get_txq_stats(struct wiphy *wiphy, .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, .tx_control_port = ieee80211_tx_control_port, .get_txq_stats = ieee80211_get_txq_stats, + .set_sta_mon_rssi_config = ieee80211_set_sta_mon_rssi_config, }; diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 81b35f6..8c459a7 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -482,6 +482,14 @@ struct ieee80211_sta_rx_stats { * @pcpu_rx_stats: per-CPU RX statistics, assigned only if the driver needs * this (by advertising the USES_RSS hw flag) * @status_stats: TX status statistics + * @rssi_thold: RSSI threshold to monitor station's signal strength, a zero + * value implies disabled. As with the cfg80211 callback, a change here + * should cause an event to be sent indicating where the current value + * is in relation to the newly configured threshold + * @rssi_hyst: Station's RSSI hysteresis + * @last_sta_mon_event_signal: Last signal strength average for a station + * that triggered a sta_mon event. 0 indicates that no event has been + * generated for the current association */ struct sta_info { /* General information, mostly static */ @@ -583,6 +591,10 @@ struct sta_info { struct cfg80211_chan_def tdls_chandef; + s32 rssi_thold; + u32 rssi_hyst; + int last_sta_mon_event_signal; + /* keep last! */ struct ieee80211_sta sta; }; -- 1.9.1
