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103 | -- Copyright (C)2020-2024, 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
-- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-- POSSIBILITY OF SUCH DAMAGE.
WITH Ada.Exceptions;
WITH Ada.Strings.Fixed;
WITH Ada.Text_IO; USE Ada.Text_IO;
WITH Device;
WITH GPIO.libsimpleio;
PACKAGE BODY Sprinkler.Valves.GPIO.libsimpleio IS
PACKAGE Natural_IO IS NEW Ada.Text_IO.Integer_IO(Natural);
-- Register a watering zone valve controlled by a GPIO pin
PROCEDURE Register(zone : ZoneNumber; desg : Device.Designator) IS
BEGIN
Put_Line(" Zone" & ZoneNumber'Image(zone) &
" valve at libsimpleio GPIO pin " &
Ada.Strings.Fixed.Trim(Natural'Image(desg.chip), Ada.Strings.Both)
& ":" &
Ada.Strings.Fixed.Trim(Natural'Image(desg.chan), Ada.Strings.Both));
Register(zone, Standard.GPIO.libsimpleio.Create(desg, Standard.GPIO.Output));
END Register;
-- Load a list of valves from a text file with the following semantics:
-- Any line containing only white space is ignored.
-- Any line beginning with # is ignored.
-- A configuration line consists of three numeric fields separated by
-- whitespace: watering zone number (Positive), GPIO chip number (Natural)
-- and GPIO channel number (Natural).
PROCEDURE LoadFromFile(filename : String) IS
F : File_Type;
BEGIN
Open(F, In_File, filename);
LOOP
<<Continue>>
DECLARE
inbuf : String :=
Ada.Strings.Fixed.Trim(Get_Line(F), Ada.Strings.Both);
zone : ZoneNumber;
chip : Natural;
chan : Natural;
last : Positive;
BEGIN
-- Ignore blank lines
IF inbuf'Length = 0 THEN
GOTO Continue;
END IF;
-- Ignore comment lines
IF inbuf(1) = '#' THEN
GOTO Continue;
END IF;
ZoneNumber_IO.Get(inbuf(1 .. inbuf'Last), zone, last);
Natural_IO.Get(inbuf(last + 1 .. inbuf'Last), chip, last);
Natural_IO.Get(inbuf(last + 1 .. inbuf'Last), chan, last);
Register(zone, Device.Designator'(chip, chan));
END;
END LOOP;
EXCEPTION
WHEN End_Error =>
Close(F);
RETURN;
WHEN Name_Error =>
RAISE;
WHEN OTHERS =>
Close(F);
RAISE;
END LoadFromFile;
END Sprinkler.Valves.GPIO.libsimpleio;
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