ath5k: basic support for survey

This adds the first element of survey data, the noise floor figure.

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 9232742..a49ede7 100644 (file)
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -241,6 +241,8 @@ static int ath5k_set_key(struct ieee80211_hw *hw,
                struct ieee80211_key_conf *key);
 static int ath5k_get_stats(struct ieee80211_hw *hw,
                struct ieee80211_low_level_stats *stats);
+static int ath5k_get_survey(struct ieee80211_hw *hw,
+               int idx, struct survey_info *survey);
 static u64 ath5k_get_tsf(struct ieee80211_hw *hw);
 static void ath5k_set_tsf(struct ieee80211_hw *hw, u64 tsf);
 static void ath5k_reset_tsf(struct ieee80211_hw *hw);
@@ -266,6 +268,7 @@ static const struct ieee80211_ops ath5k_hw_ops = {
        .configure_filter = ath5k_configure_filter,
        .set_key        = ath5k_set_key,
        .get_stats      = ath5k_get_stats,
+       .get_survey     = ath5k_get_survey,
        .conf_tx        = NULL,
        .get_tsf        = ath5k_get_tsf,
        .set_tsf        = ath5k_set_tsf,
@@ -3294,6 +3297,22 @@ ath5k_get_stats(struct ieee80211_hw *hw,
        return 0;
 }
 
+static int ath5k_get_survey(struct ieee80211_hw *hw, int idx,
+               struct survey_info *survey)
+{
+       struct ath5k_softc *sc = hw->priv;
+       struct ieee80211_conf *conf = &hw->conf;
+
+        if (idx != 0)
+               return -ENOENT;
+
+       survey->channel = conf->channel;
+       survey->filled = SURVEY_INFO_NOISE_DBM;
+       survey->noise = sc->ah->ah_noise_floor;
+
+       return 0;
+}
+
 static u64
 ath5k_get_tsf(struct ieee80211_hw *hw)
 {