ath9k: Add open loop control support
This patch adds Open Loop Control support for Atheros chipsets that
supports open loop power control.
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c
index a4e8631..6b4731c 100644
--- a/drivers/net/wireless/ath9k/rc.c
+++ b/drivers/net/wireless/ath9k/rc.c
@@ -1392,6 +1392,7 @@
struct ath_rateset *rateset = &ath_rc_priv->neg_rates;
u8 *ht_mcs = (u8 *)&ath_rc_priv->neg_ht_rates;
u8 i, j, k, hi = 0, hthi = 0;
+ struct ath_hw *ah = sc->sc_ah;
/* FIXME: Adhoc */
if ((sc->sc_ah->opmode == NL80211_IFTYPE_STATION) ||
@@ -1412,7 +1413,8 @@
if (sta->ht_cap.ht_supported) {
ath_rc_priv->ht_cap = WLAN_RC_HT_FLAG;
- if (sc->sc_ah->caps.tx_chainmask != 1)
+ if (sc->sc_ah->caps.tx_chainmask != 1 &&
+ ath9k_hw_getcapability(ah, ATH9K_CAP_DS, 0, NULL))
ath_rc_priv->ht_cap |= WLAN_RC_DS_FLAG;
if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
ath_rc_priv->ht_cap |= WLAN_RC_40_FLAG;