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mwl8k: handle 5 GHz legacy rate bitmaps in firmware commands

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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 <buytenh@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Lennert Buytenhek 2010-01-12 13:49:15 +01:00 committed by John W. Linville
parent 854783444b
commit 8707d02625
1 changed files with 25 additions and 5 deletions
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30
drivers/net/wireless/mwl8k.c
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@ -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);
}