Detail on how to set up iDrive or equivalent CAN button control #226

boost lua

firmware/controllers/actuators/boost_control.cpp

@@ -28,6 +28,12 @@ void BoostController::init(IPwm* pwm, const ValueProvider3D* openLoopMap, const
 	m_closedLoopTargetMap = closedLoopTargetMap;
 
 	m_pid.initPidClass(pidParams);
+	resetLua();
+}
+
+void BoostController::resetLua() {
+	luaTargetAdd = 0;
+	luaTargetMult = 1;
 }
 
 void BoostController::onConfigurationChange(pid_s* previousConfiguration) {
@@ -60,7 +66,7 @@ expected<float> BoostController::getSetpoint() {
 
 	efiAssert(OBD_PCM_Processor_Fault, m_closedLoopTargetMap != nullptr, "boost closed loop target", unexpected);
 
-	return m_closedLoopTargetMap->getValue(rpm, tps.Value);
+    return m_closedLoopTargetMap->getValue(rpm, tps.Value) * luaTargetMult + luaTargetAdd;
 }
 
 expected<percent_t> BoostController::getOpenLoop(float target) {

firmware/controllers/actuators/boost_control.h

@@ -17,6 +17,7 @@ class BoostController : public boost_control_s, public ClosedLoopController<floa
 public:
 	void init(IPwm* pmw, const ValueProvider3D* openLoopMap, const ValueProvider3D* closedLoopTargetMap, pid_s* pidParams);
 	void update();
+	void resetLua();
 
 	// Called when the configuration may have changed.  Controller will
 	// reset if necessary.

firmware/controllers/algo/engine.cpp

@@ -360,8 +360,7 @@ void Engine::resetLua() {
 	// todo: https://github.com/rusefi/rusefi/issues/4308
 	engineState.lua = {};
 	engineState.lua.fuelMult = 1;
-	boostController.luaTargetAdd = 0;
-	boostController.luaTargetMult = 1;
+	boostController.resetLua();
 	ignitionState.luaTimingAdd = 0;
 	ignitionState.luaTimingMult = 1;
 }

firmware/controllers/lua/lua_hooks.cpp

@@ -522,7 +522,18 @@ void configureRusefiLuaHooks(lua_State* l) {
 		return 1;
 	});
 
-
+	lua_register(l, "setBoostAdd", [](lua_State* l) {
+		engine->boostController.luaTargetAdd = luaL_checknumber(l, 1);
+		return 0;
+	});
+	lua_register(l, "setBoostMult", [](lua_State* l) {
+		engine->boostController.luaTargetMult = luaL_checknumber(l, 1);
+		return 0;
+	});
+	lua_register(l, "setTimingAdd", [](lua_State* l) {
+		engine->ignitionState.luaTimingAdd = luaL_checknumber(l, 1);
+		return 0;
+	});
 	lua_register(l, "setTimingMult", [](lua_State* l) {
 		engine->ignitionState.luaTimingMult = luaL_checknumber(l, 1);
 		return 0;
@@ -613,11 +624,6 @@ void configureRusefiLuaHooks(lua_State* l) {
 		return 1;
 	});
 
-	lua_register(l, "setTimingAdd", [](lua_State* l) {
-		engine->ignitionState.luaTimingAdd = luaL_checknumber(l, 1);
-		return 0;
-	});
-
 #if EFI_VEHICLE_SPEED
 	lua_register(l, "getCurrentGear", [](lua_State* l) {
 		lua_pushinteger(l, engine->module<GearDetector>()->getCurrentGear());