luci/modules/luci-mod-admin-full/luasrc/model/cbi/admin_system/leds.lua

-- Copyright 2008 Steven Barth <steven@midlink.org>
-- Licensed to the public under the Apache License 2.0.

m = Map("system", translate("<abbr title=\"Light Emitting Diode\">LED</abbr> Configuration"), translate("Customizes the behaviour of the device <abbr title=\"Light Emitting Diode\">LED</abbr>s if possible."))

local sysfs_path = "/sys/class/leds/"
local leds = {}

local fs   = require "nixio.fs"
local util = require "nixio.util"

if fs.access(sysfs_path) then
	leds = util.consume((fs.dir(sysfs_path)))
end

if #leds == 0 then
	return m
end


s = m:section(TypedSection, "led", "")
s.anonymous = true
s.addremove = true

function s.parse(self, ...)
	TypedSection.parse(self, ...)
	os.execute("/etc/init.d/led enable")
end


s:option(Value, "name", translate("Name"))


sysfs = s:option(ListValue, "sysfs", translate("<abbr title=\"Light Emitting Diode\">LED</abbr> Name"))
for k, v in ipairs(leds) do
	sysfs:value(v)
end

s:option(Flag, "default", translate("Default state")).rmempty = false


trigger = s:option(ListValue, "trigger", translate("Trigger"))

local triggers = fs.readfile(sysfs_path .. leds[1] .. "/trigger")
for t in triggers:gmatch("[%w-]+") do
	trigger:value(t, translate(t:gsub("-", "")))
end


delayon = s:option(Value, "delayon", translate ("On-State Delay"))
delayon:depends("trigger", "timer")

delayoff = s:option(Value, "delayoff", translate ("Off-State Delay"))
delayoff:depends("trigger", "timer")


dev = s:option(ListValue, "_net_dev", translate("Device"))
dev.rmempty = true
dev:value("")
dev:depends("trigger", "netdev")

function dev.cfgvalue(self, section)
	return m.uci:get("system", section, "dev")
end

function dev.write(self, section, value)
	m.uci:set("system", section, "dev", value)
end

function dev.remove(self, section)
	local t = trigger:formvalue(section)
	if t ~= "netdev" and t ~= "usbdev" then
		m.uci:delete("system", section, "dev")
	end
end

for k, v in pairs(luci.sys.net.devices()) do
	if v ~= "lo" then
		dev:value(v)
	end
end


mode = s:option(MultiValue, "mode", translate("Trigger Mode"))
mode.rmempty = true
mode:depends("trigger", "netdev")
mode:value("link", translate("Link On"))
mode:value("tx", translate("Transmit"))
mode:value("rx", translate("Receive"))


usbdev = s:option(ListValue, "_usb_dev", translate("USB Device"))
usbdev:depends("trigger", "usbdev")
usbdev.rmempty = true
usbdev:value("")

function usbdev.cfgvalue(self, section)
	return m.uci:get("system", section, "dev")
end

function usbdev.write(self, section, value)
	m.uci:set("system", section, "dev", value)
end

function usbdev.remove(self, section)
	local t = trigger:formvalue(section)
	if t ~= "netdev" and t ~= "usbdev" then
		m.uci:delete("system", section, "dev")
	end
end

for p in nixio.fs.glob("/sys/bus/usb/devices/[0-9]*/manufacturer") do
	local id = p:match("%d+-%d+")
	local mf = nixio.fs.readfile("/sys/bus/usb/devices/" .. id .. "/manufacturer") or "?"
	local pr = nixio.fs.readfile("/sys/bus/usb/devices/" .. id .. "/product")      or "?"
	usbdev:value(id, "%s (%s - %s)" %{ id, mf, pr })
end

return m