ath9k: add interface combinations for DFS master

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 24 insertions, 8 deletions

diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index af932c9444de..385c59a735a8 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -727,12 +727,28 @@ static const struct ieee80211_iface_limit if_limits[] = {
                                  BIT(NL80211_IFTYPE_P2P_GO) },
 };
 
-static const struct ieee80211_iface_combination if_comb = {
-        .limits = if_limits,
-        .n_limits = ARRAY_SIZE(if_limits),
-        .max_interfaces = 2048,
-        .num_different_channels = 1,
-        .beacon_int_infra_match = true,
+
+static const struct ieee80211_iface_limit if_dfs_limits[] = {
+        { .max = 1,     .types = BIT(NL80211_IFTYPE_AP) },
+};
+
+static const struct ieee80211_iface_combination if_comb[] = {
+        {
+                .limits = if_limits,
+                .n_limits = ARRAY_SIZE(if_limits),
+                .max_interfaces = 2048,
+                .num_different_channels = 1,
+                .beacon_int_infra_match = true,
+        },
+        {
+                .limits = if_dfs_limits,
+                .n_limits = ARRAY_SIZE(if_dfs_limits),
+                .max_interfaces = 1,
+                .num_different_channels = 1,
+                .beacon_int_infra_match = true,
+                .radar_detect_widths =  BIT(NL80211_CHAN_NO_HT) |
+                                        BIT(NL80211_CHAN_HT20),
+        }
 };
 
 void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
@@ -763,8 +779,8 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
                 BIT(NL80211_IFTYPE_ADHOC) |
                 BIT(NL80211_IFTYPE_MESH_POINT);
 
-        hw->wiphy->iface_combinations = &if_comb;
-        hw->wiphy->n_iface_combinations = 1;
+        hw->wiphy->iface_combinations = if_comb;
+        hw->wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
 
         if (AR_SREV_5416(sc->sc_ah))
                 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;