-----------------------------------------------------------------------
--                       Ada for Automation                          --
--                                                                   --
--                 Copyright (C) 2012, Stephane LOS                  --
--                                                                   --
-- This library is free software; you can redistribute it and/or     --
-- modify it under the terms of the GNU General Public               --
-- License as published by the Free Software Foundation; either      --
-- version 2 of the License, or (at your option) any later version.  --
--                                                                   --
-- This library is distributed in the hope that it will be useful,   --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of    --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU --
-- General Public License for more details.                          --
--                                                                   --
-- You should have received a copy of the GNU General Public         --
-- License along with this library; if not, write to the             --
-- Free Software Foundation, Inc., 59 Temple Place - Suite 330,      --
-- Boston, MA 02111-1307, USA.                                       --
--                                                                   --
-- As a special exception, if other files instantiate generics from  --
-- this unit, or you link this unit with other files to produce an   --
-- executable, this  unit  does not  by itself cause  the resulting  --
-- executable to be covered by the GNU General Public License. This  --
-- exception does not however invalidate any other reasons why the   --
-- executable file  might be covered by the  GNU Public License.     --
-----------------------------------------------------------------------


with Ada.Text_IO;

with A4A; use A4A;
with A4A.Protocols.HilscherX;

procedure Test_CifX is

   package cifX renames A4A.Protocols.HilscherX;

   Driver_Handle  : aliased cifX.Driver_Handle_Type;
   Channel_Handle : aliased cifX.Channel_Handle_Type;
   Result : DInt;

   Input_Data  : Byte_Array (0..9) := (others => 0);
   Output_Data : Byte_Array (0..9) := (others => 0);

   My_Timer : Integer := 10;

begin

   Ada.Text_IO.Put_Line (Item => "Test_CifX...");

   Ada.Text_IO.Put_Line (Item => "Initializing Linux Driver");
   Result := cifX.Linux_Driver_Init;
   if Result /= cifX.CIFX_NO_ERROR then
      cifX.Show_Error(Result);
   else

      Ada.Text_IO.Put_Line (Item => "Opening Driver");
      Result := cifX.Driver_Open (Driver_Handle'Access);
      if Result /= cifX.CIFX_NO_ERROR then
         cifX.Show_Error(Result);
      else

         Ada.Text_IO.Put_Line (Item => "Opening Channel");
         Result := cifX.Channel_Open
           (Driver_Handle          => Driver_Handle,
            Board_Name             => "cifX0",
            Channel_Number         => 0,
            Channel_Handle_Access  => Channel_Handle'Access);

         if Result /= cifX.CIFX_NO_ERROR then
            cifX.Show_Error(Result);
         else

            Ada.Text_IO.Put_Line (Item => "IO Exchange");
            loop
               Result := cifX.Channel_IO_Read
                 (Channel_Handle => Channel_Handle,
                  Area_Number    => 0,
                  Offset         => 0,
                  Data_Length    => 4, --Input_Data'Length,
                  Data_In        => Input_Data,
                  Time_Out       => 10);
               Ada.Text_IO.Put_Line (Item => "Channel_IO_Read");
               if Result /= cifX.CIFX_NO_ERROR then
                  cifX.Show_Error(Result);
               else
                  for Index in Input_Data'First .. 3 loop

                     Ada.Text_IO.Put ("Input_Data(" & Index'Img & ") : ");
                     Byte_Text_IO.Put (Input_Data(Index), Base => 16);
                     Ada.Text_IO.New_Line;

                     Output_Data(Index) := Input_Data(Index);
                  end loop;

                  Result := cifX.Channel_IO_Write
                    (Channel_Handle => Channel_Handle,
                     Area_Number    => 0,
                     Offset         => 0,
                     Data_Length    => 4, --Output_Data'Length,
                     Data_Out       => Output_Data,
                     Time_Out       => 10);
                  Ada.Text_IO.Put_Line (Item => "Channel_IO_Write");

                  if Result /= cifX.CIFX_NO_ERROR then
                     cifX.Show_Error(Result);
                  end if;
               end if;

               My_Timer := My_Timer - 1;
               exit when My_Timer <= 0;

               delay 1.0;
            end loop;

            Ada.Text_IO.Put_Line (Item => "Closing Channel");
            Result := cifX.Channel_Close (Channel_Handle);
            if Result /= cifX.CIFX_NO_ERROR then
               cifX.Show_Error(Result);
            end if;

         end if;

         Ada.Text_IO.Put_Line (Item => "Closing Driver");
         Result := cifX.Driver_Close (Driver_Handle);
         if Result /= cifX.CIFX_NO_ERROR then
            cifX.Show_Error(Result);
         end if;

      end if;

   end if;

   Ada.Text_IO.Put_Line (Item => "Deinitializing Linux Driver");
   cifX.Linux_Driver_Deinit;

end Test_CifX;