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## Copyright (C) 2018-2019 John Donoghue <john.donoghue@ieee.org>
##
## This program 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 3 of the License, or
## (at your option) any later version.
##
## This program 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. see
## <https://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {} {@var{value} =} pinStateMode (@var{pinStateVal})
## Private function
## @end deftypefn
function [pstate, pmode] = pinStateMode (pinStateVal)
if ischar(pinStateVal)
switch (tolower(pinStateVal))
case "unset"
pstate = 0; pmode="none";
case "analoginput"
pstate = 1; pmode = "analog";
case "digitalinput"
pstate = 2; pmode="digital";
case "digitaloutput"
pstate = 3; pmode="digital";
case "pullup"
pstate = 4; pmode = "digital";
case "i2c"
pstate = 5; pmode = "i2c";
case "pwm"
pstate = 6; pmode="pwm";
case "servo"
pstate = 7; pmode="pwm";
case "spi"
pstate = 3; pmode="spi"; % for now just setting as output
case "interrupt"
pstate = 2; pmode="interrupt"; % for now just setting as input
case "reserved"
pstate = 10; pmode="reserved";
otherwise
error ("unknown pin state %s", pinStateVal);
endswitch
else
switch (pinStateVal)
case 1
pstate = "analoginput"; pmode="analog";
case 2
pstate = "digitalinput"; pmode="digital";
case 3
pstate = "digitaloutput"; pmode="digital";
case 4
pstate = "pullup"; pmode="digital";
case 5
pstate = "i2c"; pmode="i2c";
case 6
pstate = "pwm"; pmode="pwm";
case 7
pstate = "servo"; pmode="pwm";
case 8
pstate = "spi"; pmode="spi";
case 9
pstate = "interrupt"; pmode="interrupt";
case 10
pstate = "reserved"; pmode="reserved";
otherwise
pstate = "unset"; pmode="";
endswitch
endif
endfunction
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