1 files changed, 68 insertions, 1 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index dc74c16d36a8..eba36f737388 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -182,6 +182,11 @@ static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
 		goto done;
 
 	mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2;
+	IWL_DEBUG_ASSOC(priv, "spatial multiplexing power save mode: %s\n",
+			(mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ?
+			"static" :
+			(mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ?
+			"dynamic" : "disabled");
 
 	sta_flags = priv->stations[index].sta.station_flags;
 
@@ -1012,7 +1017,7 @@ int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap)
 	 */
 	if (priv->current_ht_config.is_ht) {
 		rcu_read_lock();
-		sta = ieee80211_find_sta(priv->hw, addr);
+		sta = ieee80211_find_sta(priv->vif, addr);
 		if (sta) {
 			memcpy(&ht_config, &sta->ht_cap, sizeof(ht_config));
 			cur_ht_config = &ht_config;
@@ -1030,6 +1035,68 @@ int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap)
 EXPORT_SYMBOL(iwl_rxon_add_station);
 
 /**
+ * iwl_sta_init_bcast_lq - Initialize a bcast station's hardware rate table
+ *
+ * NOTE: Run REPLY_ADD_STA command to set up station table entry, before
+ *       calling this function (which runs REPLY_TX_LINK_QUALITY_CMD,
+ *       which requires station table entry to exist).
+ */
+static void iwl_sta_init_bcast_lq(struct iwl_priv *priv)
+{
+	int i, r;
+	struct iwl_link_quality_cmd link_cmd = {
+		.reserved1 = 0,
+	};
+	u32 rate_flags;
+
+	/* Set up the rate scaling to start at selected rate, fall back
+	 * all the way down to 1M in IEEE order, and then spin on 1M */
+	if (priv->band == IEEE80211_BAND_5GHZ)
+		r = IWL_RATE_6M_INDEX;
+	else
+		r = IWL_RATE_1M_INDEX;
+
+	for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
+		rate_flags = 0;
+		if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE)
+			rate_flags |= RATE_MCS_CCK_MSK;
+
+		rate_flags |= first_antenna(priv->hw_params.valid_tx_ant) <<
+				RATE_MCS_ANT_POS;
+
+		link_cmd.rs_table[i].rate_n_flags =
+			iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags);
+		r = iwl_get_prev_ieee_rate(r);
+	}
+
+	link_cmd.general_params.single_stream_ant_msk =
+				first_antenna(priv->hw_params.valid_tx_ant);
+	link_cmd.general_params.dual_stream_ant_msk = 3;
+	link_cmd.agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
+	link_cmd.agg_params.agg_time_limit =
+		cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
+
+	/* Update the rate scaling for control frame Tx to AP */
+	link_cmd.sta_id = priv->hw_params.bcast_sta_id;
+
+	iwl_send_cmd_pdu_async(priv, REPLY_TX_LINK_QUALITY_CMD,
+			       sizeof(link_cmd), &link_cmd, NULL);
+}
+
+
+/**
+ * iwl_add_bcast_station - add broadcast station into station table.
+ */
+void iwl_add_bcast_station(struct iwl_priv *priv)
+{
+	iwl_add_station(priv, iwl_bcast_addr, false, CMD_SYNC, NULL);
+
+	/* Set up default rate scaling table in device's station table */
+	iwl_sta_init_bcast_lq(priv);
+}
+EXPORT_SYMBOL(iwl_add_bcast_station);
+
+/**
  * iwl_get_sta_id - Find station's index within station table
  *
  * If new IBSS station, create new entry in station table