rrmd: Update Tx Power control to use interface instead of wiphy

1. Update TX power control to use interface (dev) instead of wiphy, improving
   compatibility on Wi-Fi 7 platforms.
2. Introduce bssid_to_ifname() helper to reliably map BSSID to interface name.
3. Add a short delay (10 milliseconds) after setting TX power to allow
   driver/firmware state to settle before reading back the value.

Tested on EAP014 and EAP105.

Fixes WIFI-14964

Signed-off-by: Venkat Chimata <venkat@nearhop.com>

feeds/ucentral/rrmd/files/usr/share/rrmd/command.uc

@@ -42,7 +42,12 @@ const actions = {
 	tx_power: function(msg) {
 		if (!global.phy.txpower(msg))
 			return result(1, msg.event, 'BSS ' + msg.bssid + ' failed to set TX power', { action: 'tx_power', bssid: msg.bssid });
-	
+
+		// iw dev gives updated value
+		// But fetching it immediately failed once.
+		// Could n't reprouce it though
+		// Give few milliseconds to settle
+		sleep(10);	
 		let level = global.local.txpower(msg.bssid) / 100;
 		return result(0, msg.event, 'BSS ' + msg.bssid + ' changed TX power', { action: 'tx_power', bssid: msg.bssid, level });
 	},

feeds/ucentral/rrmd/files/usr/share/rrmd/local.uc

@@ -293,6 +293,15 @@ return {
 		return -1;
 	},
 
+	bssid_to_ifname: function(bssid) {
+		for (let bss, v in interfaces) {
+			if (v.bssid == lc(bssid)) {
+				return bss;
+			}
+		}
+		return null;
+	},
+
 	txpower: function(bssid) {
 		for (let bss, v in interfaces) {
 			if (v.bssid != lc(bssid))

feeds/ucentral/rrmd/files/usr/share/rrmd/phy.uc

@@ -163,10 +163,11 @@ return {
 	txpower: function(msg) {
 		if (!msg.bssid || !msg.level)
 			return false;
-		let wiphy = global.local.bssid_to_phy(msg.bssid);
-		if (wiphy < 0)
-			return false;	
-		global.nl80211.request(global.nl80211.const.NL80211_CMD_SET_WIPHY, 0, { wiphy, wiphy_tx_power_setting: 2, wiphy_tx_power_level: msg.level * 100});
+		let dev = global.local.bssid_to_ifname(msg.bssid);
+		if (dev == null) {
+			return false;
+		}
+		global.nl80211.request(global.nl80211.const.NL80211_CMD_SET_WIPHY, 0, { dev, wiphy_tx_power_setting: 2, wiphy_tx_power_level: msg.level * 100});
 		return true;
 	},
 };