From: John W. Linville <linville@tuxdriver.com>
Date: Wed, 28 Jul 2010 18:47:49 +0000 (-0400)
Subject: ar9170: add get_survey callback in order to get channel noise
X-Git-Tag: v2.6.36-rc1~571^2~64^2~9
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a55427e8284541d43630f10a6c637b28802c21b0;p=karo-tx-linux.git

ar9170: add get_survey callback in order to get channel noise

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
---

diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c
index 5e2c51433967..c67b05f3bcbd 100644
--- a/drivers/net/wireless/ath/ar9170/main.c
+++ b/drivers/net/wireless/ath/ar9170/main.c
@@ -1905,6 +1905,24 @@ static int ar9170_get_stats(struct ieee80211_hw *hw,
 	return 0;
 }
 
+static int ar9170_get_survey(struct ieee80211_hw *hw, int idx,
+				struct survey_info *survey)
+{
+	struct ar9170 *ar = hw->priv;
+	struct ieee80211_conf *conf = &hw->conf;
+
+	if (idx != 0)
+		return -ENOENT;
+
+	/* TODO: update noise value, e.g. call ar9170_set_channel */
+
+	survey->channel = conf->channel;
+	survey->filled = SURVEY_INFO_NOISE_DBM;
+	survey->noise = ar->noise[0];
+
+	return 0;
+}
+
 static int ar9170_conf_tx(struct ieee80211_hw *hw, u16 queue,
 			  const struct ieee80211_tx_queue_params *param)
 {
@@ -1957,6 +1975,7 @@ static const struct ieee80211_ops ar9170_ops = {
 	.get_tsf		= ar9170_op_get_tsf,
 	.set_key		= ar9170_set_key,
 	.get_stats		= ar9170_get_stats,
+	.get_survey		= ar9170_get_survey,
 	.ampdu_action		= ar9170_ampdu_action,
 };