ath9k_htc: implement sta_rc_update() mac80211 callback

In case of changes in the supported rates set for a given station, it is now
possible to use this callback to update the current internal state of the
station in the htc driver.

Reported-by: Gui Iribarren <gui@altermundi.net>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 8a0ccf7..c32f6e3 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -1333,6 +1333,34 @@ static int ath9k_htc_sta_remove(struct ieee80211_hw *hw,
        return ret;
 }
 
+static void ath9k_htc_sta_rc_update(struct ieee80211_hw *hw,
+                                   struct ieee80211_vif *vif,
+                                   struct ieee80211_sta *sta, u32 changed)
+{
+       struct ath9k_htc_priv *priv = hw->priv;
+       struct ath_common *common = ath9k_hw_common(priv->ah);
+       struct ath9k_htc_target_rate trate;
+
+       mutex_lock(&priv->mutex);
+       ath9k_htc_ps_wakeup(priv);
+
+       if (changed & IEEE80211_RC_SUPP_RATES_CHANGED) {
+               memset(&trate, 0, sizeof(struct ath9k_htc_target_rate));
+               ath9k_htc_setup_rate(priv, sta, &trate);
+               if (!ath9k_htc_send_rate_cmd(priv, &trate))
+                       ath_dbg(common, CONFIG,
+                               "Supported rates for sta: %pM updated, rate caps: 0x%X\n",
+                               sta->addr, be32_to_cpu(trate.capflags));
+               else
+                       ath_dbg(common, CONFIG,
+                               "Unable to update supported rates for sta: %pM\n",
+                               sta->addr);
+       }
+
+       ath9k_htc_ps_restore(priv);
+       mutex_unlock(&priv->mutex);
+}
+
 static int ath9k_htc_conf_tx(struct ieee80211_hw *hw,
                             struct ieee80211_vif *vif, u16 queue,
                             const struct ieee80211_tx_queue_params *params)
@@ -1760,6 +1788,7 @@ struct ieee80211_ops ath9k_htc_ops = {
        .sta_add            = ath9k_htc_sta_add,
        .sta_remove         = ath9k_htc_sta_remove,
        .conf_tx            = ath9k_htc_conf_tx,
+       .sta_rc_update      = ath9k_htc_sta_rc_update,
        .bss_info_changed   = ath9k_htc_bss_info_changed,
        .set_key            = ath9k_htc_set_key,
        .get_tsf            = ath9k_htc_get_tsf,