Reorganize commands module

src/commands/mod.rs

@@ -0,0 +1,42 @@
+//! High level OBD-II interface
+
+mod implementation;
+
+mod types;
+pub use types::{Dtc, DtcsInfo};
+
+use crate::Result;
+
+/// Trait for devices that can retrieve data over OBD-II
+///
+/// Automatically implemented for implementors of [Obd2Device](crate::Obd2Device).
+pub trait Obd2DataRetrieval: private::Sealed {
+    /// Check which getters are supported by the current vehicle
+    // fn get_support() -> Obd2FunctionSupport;
+
+    /// Retreive the VIN (vehicle identification number)
+    ///
+    /// This should match the number printed on the vehicle, and is a good command for checking
+    /// that the OBD-II interface is working correctly.
+    fn get_vin(&mut self) -> Result<String>;
+
+    /// Get DTC (diagnostic trouble code) metadata for each ECU
+    fn get_dtc_info(&mut self) -> Result<Vec<DtcsInfo>>;
+
+    /// Get DTCs for each ECU
+    fn get_dtcs(&mut self) -> Result<Vec<Vec<Dtc>>>;
+
+    /// Get the calculated engine
+    // fn get_engine_load(&mut self) -> Result<u8>;
+
+    /// Get the RPM in increments of 0.25
+    fn get_rpm(&mut self) -> Result<f32>;
+
+    /// Get the speed in km/h
+    fn get_speed(&mut self) -> Result<u8>;
+}
+
+mod private {
+    pub trait Sealed {}
+    impl<T: crate::Obd2Device> Sealed for T {}
+}