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authorSujith <Sujith.Manoharan@atheros.com>2009-01-23 11:20:44 +0530
committerJohn W. Linville <linville@tuxdriver.com>2009-01-29 16:01:22 -0500
commiteb2599ca25be212bd37dd3e90ef13ea45758e838 (patch)
tree612aba0899a61b012c140a689c96d1edf93fcf33
parent27abe060aa9d3410545ef663676c7183fc2512c6 (diff)
ath9k: Fix MCS rates registration bug for AR9285
AR9285 based devices support only single stream MCS rates. This patch fixes a bug where dual stream stream rates were also being registered. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/ath9k/main.c23
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 561a2c3adbb..15a7f90bc84 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -854,7 +854,8 @@ static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key)
}
}
-static void setup_ht_cap(struct ieee80211_sta_ht_cap *ht_info)
+static void setup_ht_cap(struct ath_softc *sc,
+ struct ieee80211_sta_ht_cap *ht_info)
{
#define ATH9K_HT_CAP_MAXRXAMPDU_65536 0x3 /* 2 ^ 16 */
#define ATH9K_HT_CAP_MPDUDENSITY_8 0x6 /* 8 usec */
@@ -867,10 +868,22 @@ static void setup_ht_cap(struct ieee80211_sta_ht_cap *ht_info)
ht_info->ampdu_factor = ATH9K_HT_CAP_MAXRXAMPDU_65536;
ht_info->ampdu_density = ATH9K_HT_CAP_MPDUDENSITY_8;
+
/* set up supported mcs set */
memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
- ht_info->mcs.rx_mask[0] = 0xff;
- ht_info->mcs.rx_mask[1] = 0xff;
+
+ switch(sc->sc_rx_chainmask) {
+ case 1:
+ ht_info->mcs.rx_mask[0] = 0xff;
+ break;
+ case 5:
+ case 7:
+ default:
+ ht_info->mcs.rx_mask[0] = 0xff;
+ ht_info->mcs.rx_mask[1] = 0xff;
+ break;
+ }
+
ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
}
@@ -1549,9 +1562,9 @@ int ath_attach(u16 devid, struct ath_softc *sc)
hw->rate_control_algorithm = "ath9k_rate_control";
if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT) {
- setup_ht_cap(&sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
+ setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
if (test_bit(ATH9K_MODE_11A, sc->sc_ah->ah_caps.wireless_modes))
- setup_ht_cap(&sc->sbands[IEEE80211_BAND_5GHZ].ht_cap);
+ setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap);
}
hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &sc->sbands[IEEE80211_BAND_2GHZ];