deinit lua pins when not used (#2876)

Co-authored-by: Matthew Kennedy <makenne@microsoft.com>

firmware/controllers/lua/lua.cpp

@@ -247,6 +247,9 @@ static bool runOneLua() {
 		chThdSleepMilliseconds(luaTickPeriodMs);
 	}
 
+	// De-init pins, they will reinit next start of the script.
+	luaDeInitPins();
+
 	return true;
 }
 

firmware/controllers/lua/lua_hooks.cpp

@@ -101,6 +101,13 @@ static int lua_startPwm(lua_State* l) {
 	return 0;
 }
 
+void luaDeInitPins() {
+	// Simply de-init all pins - when the script runs again, they will be re-init'd
+	for (size_t i = 0; i < efi::size(pins); i++) {
+		pins[i].deInit();
+	}
+}
+
 static int lua_setPwmDuty(lua_State* l) {
 	auto p = luaL_checkPwmIndex(l, 1);
 	auto duty = luaL_checknumber(l, 2);

firmware/controllers/lua/lua_hooks.h

@@ -1,3 +1,4 @@
 #pragma once
 
 void configureRusefiLuaHooks(lua_State*);
+void luaDeInitPins();