------------------------------------------------------------------------------
--                                                                          --
--                      Copyright (C) 2017, AdaCore                         --
--                                                                          --
--  Redistribution and use in source and binary forms, with or without      --
--  modification, are permitted provided that the following conditions are  --
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--                                                                          --
------------------------------------------------------------------------------

with STM32.Device; use STM32.Device;

package body NXT.Analog.Polling is

   ----------------
   -- Initialize --
   ----------------

   overriding
   procedure Initialize
     (This : in out NXT_Analog_Sensor_Polled)
   is
   begin
      Initialize (NXT_Analog_Sensor (This));

      Configure_Regular_Conversions
        (This.Converter.all,
         Continuous  => False,
         Trigger     => Software_Triggered,
         Enable_EOC  => True,
         Conversions => Regular_Conversion (This.Input_Channel));

      Enable (This.Converter.all);
   end Initialize;

   ---------------------
   -- Get_Raw_Reading --
   ---------------------

   overriding
   procedure Get_Raw_Reading
     (This       : in out NXT_Analog_Sensor_Polled;
      Reading    : out Natural;
      Successful : out Boolean)
   is
   begin
      Start_Conversion (This.Converter.all);
      Poll_For_Status (This.Converter.all, Regular_Channel_Conversion_Complete, Successful);
      if not Successful then
         Reading := 0;
      else
         Reading := Integer (Conversion_Value (This.Converter.all));
      end if;
   end Get_Raw_Reading;

end NXT.Analog.Polling;
