mwl8k: Do not call STA specific cmds not supported by the AP fw

While using STA mode in the AP firmware, avoid
calling some firmware commands which are not
supported by the AP firmware.

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwl8k.c

@@ -4881,7 +4881,8 @@ mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		rcu_read_unlock();
 	}
 
-	if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc) {
+	if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc &&
+	    !priv->ap_fw) {
 		rc = mwl8k_cmd_set_rate(hw, vif, ap_legacy_rates, ap_mcs_rates);
 		if (rc)
 			goto out;
@@ -4889,6 +4890,25 @@ mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		rc = mwl8k_cmd_use_fixed_rate_sta(hw);
 		if (rc)
 			goto out;
+	} else {
+		if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc &&
+		    priv->ap_fw) {
+			int idx;
+			int rate;
+
+			/* Use AP firmware specific rate command.
+			 */
+			idx = ffs(vif->bss_conf.basic_rates);
+			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);
+		}
 	}
 
 	if (changed & BSS_CHANGED_ERP_PREAMBLE) {
@@ -4898,13 +4918,13 @@ mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 			goto out;
 	}
 
-	if (changed & BSS_CHANGED_ERP_SLOT) {
+	if ((changed & BSS_CHANGED_ERP_SLOT) && !priv->ap_fw)  {
 		rc = mwl8k_cmd_set_slot(hw, vif->bss_conf.use_short_slot);
 		if (rc)
 			goto out;
 	}
 
-	if (vif->bss_conf.assoc &&
+	if (vif->bss_conf.assoc && !priv->ap_fw &&
 	    (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_ERP_CTS_PROT |
 			BSS_CHANGED_HT))) {
 		rc = mwl8k_cmd_set_aid(hw, vif, ap_legacy_rates);