Mark is asking for VIN number field #3967

firmware/controllers/lua/lua_hooks.cpp

@@ -26,6 +26,13 @@ using namespace luaaa;
 #include "electronic_throttle_impl.h"
 #endif
 
+static int lua_vin(lua_State* l) {
+	auto zeroBasedCharIndex = luaL_checkinteger(l, 1);
+	char value = engineConfiguration->vinNumber[zeroBasedCharIndex];
+	lua_pushnumber(l, value);
+	return 1;
+}
+
 static int lua_readpin(lua_State* l) {
 	auto msg = luaL_checkstring(l, 1);
 #if EFI_PROD_CODE
@@ -585,6 +592,7 @@ void configureRusefiLuaHooks(lua_State* l) {
 	configureRusefiLuaUtilHooks(l);
 
 	lua_register(l, "readPin", lua_readpin);
+	lua_register(l, "vin", lua_vin);
 	lua_register(l, "getAuxAnalog", lua_getAuxAnalog);
 	lua_register(l, "getSensorByIndex", lua_getSensorByIndex);
 	lua_register(l, "getSensor", lua_getSensorByName);

unit_tests/tests/lua/test_lua_vin.cpp

@@ -0,0 +1,23 @@
+/*
+ * test_lua_vin.cpp
+ *
+ */
+
+#include "pch.h"
+#include "rusefi_lua.h"
+#include "lua_lib.h"
+
+
+TEST(LuaVin, Test) {
+	EngineTestHelper eth(TEST_CRANK_ENGINE);
+
+	strcpy(engineConfiguration->vinNumber, "GM123");
+
+	const char* realdata = TWO_BYTES_MSB R"(
+
+	function testFunc()
+		return vin(0)
+	end)";
+
+	EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(realdata).value_or(0), 0x47);
+}

unit_tests/tests/tests.mk

@@ -41,6 +41,7 @@ TESTS_SRC_CPP = \
 	tests/lua/test_lua_hooks.cpp \
 	tests/lua/test_lua_Leiderman_Khlystov.cpp \
 	tests/lua/test_can_filter.cpp \
+	tests/lua/test_lua_vin.cpp \
 	tests/sensor/test_cj125.cpp \
 	tests/test_change_engine_type.cpp \
 	tests/util/test_scaled_channel.cpp \