b43: Added get_survey callback in order to get channel noise

Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index e0575591828..f6019828ed3 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4570,6 +4570,23 @@ static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw *hw)
         mutex_unlock(&wl->mutex);
 }
 
+static int b43_op_get_survey(struct ieee80211_hw *hw, int idx,
+                             struct survey_info *survey)
+{
+        struct b43_wl *wl = hw_to_b43_wl(hw);
+        struct b43_wldev *dev = wl->current_dev;
+        struct ieee80211_conf *conf = &hw->conf;
+
+        if (idx != 0)
+                return -ENOENT;
+
+        survey->channel = conf->channel;
+        survey->filled = SURVEY_INFO_NOISE_DBM;
+        survey->noise = dev->stats.link_noise;
+
+        return 0;
+}
+
 static const struct ieee80211_ops b43_hw_ops = {
         .tx                     = b43_op_tx,
         .conf_tx                = b43_op_conf_tx,
@@ -4589,6 +4606,7 @@ static const struct ieee80211_ops b43_hw_ops = {
         .sta_notify             = b43_op_sta_notify,
         .sw_scan_start          = b43_op_sw_scan_start_notifier,
         .sw_scan_complete       = b43_op_sw_scan_complete_notifier,
+        .get_survey             = b43_op_get_survey,
         .rfkill_poll            = b43_rfkill_poll,
 };