wl12xx: add power_level field to wlvif

move power_level into the per-interface data.

mac80211 configures some values (e.g. band, channel)
globally, while we configure them per-interface.

In order to make it easier to keep track of the
configured value for each value while keeping sync
with mac80211, save these values both globally
and per-vif.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

drivers/net/wireless/wl12xx/init.c

@@ -554,7 +554,7 @@ static int wl12xx_init_ap_role(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 		return ret;
 
 	/* initialize Tx power */
-	ret = wl1271_acx_tx_power(wl, wlvif, wl->power_level);
+	ret = wl1271_acx_tx_power(wl, wlvif, wlvif->power_level);
 	if (ret < 0)
 		return ret;
 

drivers/net/wireless/wl12xx/main.c

@@ -1974,6 +1974,7 @@ static int wl12xx_init_vif_data(struct wl1271 *wl, struct ieee80211_vif *vif)
 	 */
 	wlvif->band = wl->band;
 	wlvif->channel = wl->channel;
+	wlvif->power_level = wl->power_level;
 
 	INIT_WORK(&wlvif->rx_streaming_enable_work,
 		  wl1271_rx_streaming_enable_work);
@@ -2562,12 +2563,13 @@ static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
 						 wlvif->basic_rate, true);
 	}
 
-	if (conf->power_level != wl->power_level) {
+	if (conf->power_level != wlvif->power_level) {
 		ret = wl1271_acx_tx_power(wl, wlvif, conf->power_level);
 		if (ret < 0)
 			goto out_sleep;
 
 		wl->power_level = conf->power_level;
+		wlvif->power_level = conf->power_level;
 	}
 
 out_sleep:

drivers/net/wireless/wl12xx/wl12xx.h

@@ -631,6 +631,9 @@ struct wl12xx_vif {
 	/* retry counter for PSM entries */
 	u8 psm_entry_retry;
 
+	/* in dBm */
+	int power_level;
+
 	int rssi_thold;
 	int last_rssi_event;