ath9k: Added get_survey callback in order to get channel noise

Signed-off-by: Benoit Papillault <benoit.papillault@free.fr>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index aad370a7f95b782049fc11b05277c48538ea0944..893b552981a07494413288064dd9601be1e3373e 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2044,6 +2044,25 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
        return ret;
 }
 
+static int ath9k_get_survey(struct ieee80211_hw *hw, int idx,
+                            struct survey_info *survey)
+{
+       struct ath_wiphy *aphy = hw->priv;
+       struct ath_softc *sc = aphy->sc;
+       struct ath_hw *ah = sc->sc_ah;
+       struct ath_common *common = ath9k_hw_common(ah);
+       struct ieee80211_conf *conf = &hw->conf;
+
+        if (idx != 0)
+               return -ENOENT;
+
+       survey->channel = conf->channel;
+       survey->filled = SURVEY_INFO_NOISE_DBM;
+       survey->noise = common->ani.noise_floor;
+
+       return 0;
+}
+
 static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
 {
        struct ath_wiphy *aphy = hw->priv;
@@ -2115,6 +2134,7 @@ struct ieee80211_ops ath9k_ops = {
        .set_tsf            = ath9k_set_tsf,
        .reset_tsf          = ath9k_reset_tsf,
        .ampdu_action       = ath9k_ampdu_action,
+       .get_survey         = ath9k_get_survey,
        .sw_scan_start      = ath9k_sw_scan_start,
        .sw_scan_complete   = ath9k_sw_scan_complete,
        .rfkill_poll        = ath9k_rfkill_poll_state,