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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>
This commit is contained in:
Sujith 2009-01-23 11:20:44 +05:30 committed by John W. Linville
parent 27abe060aa
commit eb2599ca25
1 changed files with 18 additions and 5 deletions
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23
drivers/net/wireless/ath9k/main.c
View File

@ -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];