From: Lennert Buytenhek Date: Tue, 12 Jan 2010 12:49:15 +0000 (+0100) Subject: mwl8k: handle 5 GHz legacy rate bitmaps in firmware commands X-Git-Tag: v3.12-rc1~11246^2~49^2~298 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8707d0262585423cdc053bf8db0912e53915e5e4;p=kernel%2Fkernel-generic.git mwl8k: handle 5 GHz legacy rate bitmaps in firmware commands Whenever mac80211 gives us a legacy rate bitmap in the context of the 5 GHz band, we need to remember to shift the bitmap left by 5 positions before giving it to the firmware, as the firmware follows the bitmap bit assignment of the 2.4 GHz rate table even if we're on the 5 GHz band, and the 2.4 GHz rate table includes five non-OFDM rates at the start that are not valid in the 5 GHz band. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index cc2ce61..e370245 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -2836,6 +2836,7 @@ static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw *hw, struct ieee80211_sta *sta) { struct mwl8k_cmd_set_new_stn *cmd; + u32 rates; int rc; cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); @@ -2848,7 +2849,11 @@ static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw *hw, memcpy(cmd->mac_addr, sta->addr, ETH_ALEN); cmd->stn_id = cpu_to_le16(sta->aid); cmd->action = cpu_to_le16(MWL8K_STA_ACTION_ADD); - cmd->legacy_rates = cpu_to_le32(sta->supp_rates[IEEE80211_BAND_2GHZ]); + if (hw->conf.channel->band == IEEE80211_BAND_2GHZ) + rates = sta->supp_rates[IEEE80211_BAND_2GHZ]; + else + rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5; + cmd->legacy_rates = cpu_to_le32(rates); if (sta->ht_cap.ht_supported) { cmd->ht_rates[0] = sta->ht_cap.mcs.rx_mask[0]; cmd->ht_rates[1] = sta->ht_cap.mcs.rx_mask[1]; @@ -2972,6 +2977,7 @@ static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw, { struct mwl8k_cmd_update_stadb *cmd; struct peer_capability_info *p; + u32 rates; int rc; cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); @@ -2990,8 +2996,11 @@ static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw, p->ht_caps = sta->ht_cap.cap; p->extended_ht_caps = (sta->ht_cap.ampdu_factor & 3) | ((sta->ht_cap.ampdu_density & 7) << 2); - legacy_rate_mask_to_array(p->legacy_rates, - sta->supp_rates[IEEE80211_BAND_2GHZ]); + if (hw->conf.channel->band == IEEE80211_BAND_2GHZ) + rates = sta->supp_rates[IEEE80211_BAND_2GHZ]; + else + rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5; + legacy_rate_mask_to_array(p->legacy_rates, rates); memcpy(p->ht_rates, sta->ht_cap.mcs.rx_mask, 16); p->interop = 1; p->amsdu_enabled = 0; @@ -3345,7 +3354,12 @@ mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, goto out; } - ap_legacy_rates = ap->supp_rates[IEEE80211_BAND_2GHZ]; + if (hw->conf.channel->band == IEEE80211_BAND_2GHZ) { + ap_legacy_rates = ap->supp_rates[IEEE80211_BAND_2GHZ]; + } else { + ap_legacy_rates = + ap->supp_rates[IEEE80211_BAND_5GHZ] << 5; + } memcpy(ap_mcs_rates, ap->ht_cap.mcs.rx_mask, 16); rcu_read_unlock(); @@ -3422,7 +3436,13 @@ mwl8k_bss_info_changed_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif, * beacons will always go out at 1 Mb/s). */ idx = ffs(vif->bss_conf.basic_rates); - rate = idx ? mwl8k_rates_24[idx - 1].hw_value : 2; + if (idx) + idx--; + + if (hw->conf.channel->band == IEEE80211_BAND_2GHZ) + rate = mwl8k_rates_24[idx].hw_value; + else + rate = mwl8k_rates_50[idx].hw_value; mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate); }