ath9k: add support for DFS master mode

[pandora-kernel.git] / drivers / net / wireless / ath / ath9k / main.c

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 24650fd..2d25148 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1245,10 +1245,27 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
                if (old_pos >= 0)
                        ath_update_survey_nf(sc, old_pos);
 
-               /* perform spectral scan if requested. */
-               if (sc->scanning && sc->spectral_mode == SPECTRAL_CHANSCAN)
-                       ath9k_spectral_scan_trigger(hw);
-
+               /*
+                * Enable radar pulse detection if on a DFS channel. Spectral
+                * scanning and radar detection can not be used concurrently.
+                */
+               if (hw->conf.radar_enabled) {
+                       u32 rxfilter;
+
+                       /* set HW specific DFS configuration */
+                       ath9k_hw_set_radar_params(ah);
+                       rxfilter = ath9k_hw_getrxfilter(ah);
+                       rxfilter |= ATH9K_RX_FILTER_PHYRADAR |
+                                   ATH9K_RX_FILTER_PHYERR;
+                       ath9k_hw_setrxfilter(ah, rxfilter);
+                       ath_dbg(common, DFS, "DFS enabled at freq %d\n",
+                               curchan->center_freq);
+               } else {
+                       /* perform spectral scan if requested. */
+                       if (sc->scanning &&
+                           sc->spectral_mode == SPECTRAL_CHANSCAN)
+                               ath9k_spectral_scan_trigger(hw);
+               }
        }
 
        if (changed & IEEE80211_CONF_CHANGE_POWER) {