ath9k_htc: Configure beacon timers in AP mode

Handle multi-interface situations by checking if
AP interfaces are already present.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 38 insertions, 7 deletions

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index f384b358b48..7367d6c1c64 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -110,6 +110,9 @@ static void ath9k_htc_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
         struct ath9k_htc_priv *priv = data;
         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
 
+        if ((vif->type == NL80211_IFTYPE_AP) && bss_conf->enable_beacon)
+                priv->reconfig_beacon = true;
+
         if (bss_conf->assoc) {
                 priv->rearm_ani = true;
                 priv->reconfig_beacon = true;
@@ -288,6 +291,11 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
                 goto err;
 
         htc_start(priv->htc);
+
+        if (!(priv->op_flags & OP_SCANNING) &&
+            !(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
+                ath9k_htc_vif_reconfig(priv);
+
 err:
         ath9k_htc_ps_restore(priv);
         return ret;
@@ -1620,17 +1628,40 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
                         common->curbssid, common->curaid);
         }
 
-        if ((changed & BSS_CHANGED_BEACON_INT) ||
-            (changed & BSS_CHANGED_BEACON) ||
-            ((changed & BSS_CHANGED_BEACON_ENABLED) &&
-            bss_conf->enable_beacon)) {
+        if ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon) {
+                ath_dbg(common, ATH_DBG_CONFIG,
+                        "Beacon enabled for BSS: %pM\n", bss_conf->bssid);
                 priv->op_flags |= OP_ENABLE_BEACON;
                 ath9k_htc_beacon_config(priv, vif);
         }
 
-        if ((changed & BSS_CHANGED_BEACON_ENABLED) &&
-            !bss_conf->enable_beacon) {
-                priv->op_flags &= ~OP_ENABLE_BEACON;
+        if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon) {
+                /*
+                 * Disable SWBA interrupt only if there are no
+                 * AP/IBSS interfaces.
+                 */
+                if ((priv->num_ap_vif <= 1) || priv->num_ibss_vif) {
+                        ath_dbg(common, ATH_DBG_CONFIG,
+                                "Beacon disabled for BSS: %pM\n",
+                                bss_conf->bssid);
+                        priv->op_flags &= ~OP_ENABLE_BEACON;
+                        ath9k_htc_beacon_config(priv, vif);
+                }
+        }
+
+        if (changed & BSS_CHANGED_BEACON_INT) {
+                /*
+                 * Reset the HW TSF for the first AP interface.
+                 */
+                if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
+                    (priv->nvifs == 1) &&
+                    (priv->num_ap_vif == 1) &&
+                    (vif->type == NL80211_IFTYPE_AP)) {
+                        priv->op_flags |= OP_TSF_RESET;
+                }
+                ath_dbg(common, ATH_DBG_CONFIG,
+                        "Beacon interval changed for BSS: %pM\n",
+                        bss_conf->bssid);
                 ath9k_htc_beacon_config(priv, vif);
         }