--:Minify:--
local kernel=...
local rs=kernel.apis.rs
local sides = {top=1, bottom=2, left=3, right=4, front=5, back=6}
local function newGPIO(side)
    return function(mode, data)
        if mode=="w" then
            if type(data)~="boolean" then error("data: expected bool") end
            rs.setOutput(side, data)
        elseif mode=="wa" then
            if type(data)~="number" then error("data: expected bool") end
            rs.setAnalogOutput(side, data)
        elseif mode=="r" then
            return rs.getInput(side)
        elseif mode=="ra" then
            return rs.getAnalogInput(side)
        end
    end
end

for side, alt in pairs(sides) do
    local func=newGPIO(side)
    kernel.gpio[side]=func
    kernel.gpio[alt]=func
end