my first Lua

firmware/controllers/lua/lua_hooks.cpp

@@ -7,6 +7,7 @@
 #include "airmass.h"
 #include "lua_airmass.h"
 #include "can_msg_tx.h"
+#include "settings.h"
 
 // Some functions lean on existing FSIO implementation
 #include "fsio_impl.h"
@@ -19,6 +20,14 @@ static int lua_efi_print(lua_State* l) {
 	return 0;
 }
 
+static int lua_readpin(lua_State* l) {
+	auto msg = luaL_checkstring(l, 1);
+#if ! EFI_UNIT_TEST
+	readPin(msg);
+#endif
+	return 0;
+}
+
 static int lua_getSensor(lua_State* l) {
 	auto sensorIndex = luaL_checkinteger(l, 1);
 
@@ -281,6 +290,7 @@ static int lua_stopEngine(lua_State*) {
 
 void configureRusefiLuaHooks(lua_State* l) {
 	lua_register(l, "print", lua_efi_print);
+	lua_register(l, "readpin", lua_readpin);
 	lua_register(l, "getSensor", lua_getSensor);
 	lua_register(l, "getSensorRaw", lua_getSensorRaw);
 	lua_register(l, "hasSensor", lua_hasSensor);

firmware/controllers/settings.cpp

@@ -466,7 +466,7 @@ static void setIgnitionPin(const char *indexStr, const char *pinName) {
 }
 
 // this method is useful for desperate time debugging
-static void readPin(const char *pinName) {
+void readPin(const char *pinName) {
 	brain_pin_e pin = parseBrainPinWithErrorMessage(pinName);
 	if (pin == GPIO_INVALID) {
 		return;

firmware/controllers/settings.h

@@ -17,6 +17,8 @@ void scheduleStopEngine(void);
 void setCallFromPitStop(int durationMs);
 void printTPSInfo(void);
 void setEngineType(int value DECLARE_ENGINE_PARAMETER_SUFFIX);
+void readPin(const char *pinName);
+
 /**
  * See also getEngine_type_e()
  */