add CVR test button

Models/Instruments/OHpanel/OHpanel.xml

@@ -5567,4 +5567,18 @@
 		</condition>
 	</animation>
 	
+	<!-- CVR -->
+	<animation>
+		<type>pick</type>
+		<object-name>CVRTest</object-name>
+		<action>
+			<button>0</button>
+			<repeatable>false</repeatable>
+			<binding>
+				<command>nasal</command>
+				<script>libraries.CVR_test();</script>
+			</binding>
+		</action>
+	</animation>
+
 </PropertyList>

Nasal/buttons.nas

@@ -13,6 +13,38 @@ var variousReset = func {
 	setprop("/instrumentation/mk-viii/inputs/discretes/glideslope-cancel", 0);
 	setprop("/instrumentation/mk-viii/inputs/discretes/momentary-flap-override", 0);
 	setprop("/instrumentation/mk-viii/inputs/discretes/momentary-flap3-override", 0);
+	# cockpit voice recorder stuff
+	setprop("/controls/CVR/power", 0);
+	setprop("/controls/CVR/test", 0);
+	setprop("/controls/CVR/tone", 0);
+	setprop("/controls/CVR/gndctl", 0);
+	setprop("/controls/CVR/erase", 0);
+}
+
+var CVR_test = func {
+	var parkBrake = getprop("/controls/gear/brake-parking");
+	if (parkBrake) {
+		setprop("controls/CVR/tone", 1);
+		settimer(func() {
+			setprop("controls/CVR/tone", 0);
+		}, 15);
+	}
+}
+
+var CVR_master = func {
+	var stateL = getprop("/engines/engine[0]/state");
+	var stateR = getprop("/engines/engine[1]/state");
+	var wowl = getprop("/gear/gear[1]/wow");
+	var wowr = getprop("/gear/gear[2]/wow");
+	var gndCtl = getprop("/systems/CVR/gndctl");
+	var acPwr = getprop("/systems/electrical/bus/ac-ess");
+	if (acPwr > 0 and wowl and wowr and (gndCtl or (stateL == 3 or stateR == 3))) {
+		setprop("/controls/CVR/power", 1);
+	} else if (!wowl and !wowr and acPwr > 0) {
+		setprop("/controls/CVR/power", 1);
+	} else {
+		setprop("/controls/CVR/power", 0);
+	}
 }
 
 var mcpSPDKnbPull = func {
@@ -110,3 +142,10 @@ var decreaseManVS = func {
 		setprop("/systems/pressurization/outflowpos-man", manvs - 0.001);
 	}
 }
+
+
+var update_CVR = func {
+	CVR_master();
+}
+
+var CVR = maketimer(0.1, update_CVR);

Nasal/libraries.nas

@@ -199,6 +199,7 @@ setlistener("/sim/signals/fdm-initialized", func {
 	fmgc.FMGCinit();
 	mcdu1.MCDU_init();
 	mcdu2.MCDU_init();
+	libraries.CVR.start();
 	icing.icingInit();
 	var autopilot = gui.Dialog.new("sim/gui/dialogs/autopilot/dialog", "Aircraft/A320Family/Systems/autopilot-dlg.xml");
 	setprop("/it-autoflight/input/fd1", 1);

Sounds/A320-common-sound.xml

@@ -1024,6 +1024,21 @@
 		</volume>
 	</switch>
 	
+	<cvrtone>
+		<name>CVRtone</name>
+		<mode>once</mode>
+		<path>Aircraft/A320Family/Sounds/Cockpit/700hz.wav</path>
+		<condition>
+			<equals>
+				<property>controls/CVR/tone</property>
+				<value>1</value>
+			</equals>
+		</condition>
+		<volume>
+			<factor>0.60</factor>
+		</volume>
+	</cvrtone>
+	
 	<relay>
 		<name>RelayBatt</name>
 		<mode>once</mode>