-- Abstract interface definitions for the LEGO(TM) Power Functions Infrared
-- Remote Control protocol

-- Copyright (C)2019-2023, Philip Munts dba Munts Technologies.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions are met:
--
-- * Redistributions of source code must retain the above copyright notice,
--   this list of conditions and the following disclaimer.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-- ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
-- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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-- https://www.lego.com/themes/power-functions
-- http://storage.technicbricks.com/Media/2010/TBs_20100304_1/LEGO%20Power%20Functions%20RC%20v120.pdf

PACKAGE LEGORC IS

  LEGORC_Error : EXCEPTION;

  TYPE Channel IS NEW Natural RANGE 1 .. 4;

  TYPE Command IS
   (AllStop,
    MotorA,
    MotorB,
    ComboDirect,
    ComboPWM);

  TYPE Data IS MOD 256;

  TYPE Direction IS
   (Backward,
    Forward);

  -- Abstract interface for LEGORC outputs

  TYPE OutputInterface IS INTERFACE;

  TYPE Output IS ACCESS ALL OutputInterface'Class;

  PROCEDURE Put
   (Self : OutputInterface;
    chan : Channel;
    cmd  : Command;
    dat  : Data;
    dir  : Direction) IS ABSTRACT;

END LEGORC;