luci-mod-system: add led plugin infrastructure

This commit creates the possibility that not only kernel-led-triggers can
be selected but also application-led-triggers from user space.
This is done via a plugin mechanism. The application-led-triggers are scripts
that set kernel-led-triggers on system events or services. Until now this
has not been possible. The package rssileds is a kind of
application-led-trigger.

The following new packages are added:

* luci-app-ledtrig-rssi (application-led-trigger)
* luci-app-ledtrig-switch (kernel-led-trigger) not needed on every most devices
* luci-app-ledtrig-usport (kernel-led-trigger) optional trigger

Since we have now a plugin mechanism I have added the following triggers
as a dependency. So this triggers are now installed per default on LuCI
installation.

* kmod-ledtrig-default-on
* kmod-ledtrig-heartbeat
* kmod-ledtrig-netdev
* kmod-ledtrig-timer

The kernel trigger kmod-ledtrig-usbdev was removed with the commit
https://github.com/openwrt/openwrt/commit/d0b50c2770a0e2d54b37153f2801e2e7dc865fa6
So I have not ported the relevant code anymore.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

2 files changed, 54 insertions, 0 deletions

diff --git a/applications/luci-app-ledtrig-rssi/Makefile b/applications/luci-app-ledtrig-rssi/Makefile
new file mode 100644
index 000000000..b3be2065c
--- /dev/null
+++ b/applications/luci-app-ledtrig-rssi/Makefile
@@ -0,0 +1,16 @@
+#
+# Copyright (C) 2020 TDT AG <development@tdt.de>
+#
+# This is free software, licensed under the Apache License Version 2.0.
+# See https://www.apache.org/licenses/LICENSE-2.0 for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+LUCI_TITLE:= LuCI Support for ledtrigger rssi
+LUCI_DEPENDS:=+rssileds
+LUCI_PKGARCH:=all
+
+include ../../luci.mk
+
+# call BuildPackage - OpenWrt buildroot signature
diff --git a/applications/luci-app-ledtrig-rssi/htdocs/luci-static/resources/view/system/led-trigger/rssi.js b/applications/luci-app-ledtrig-rssi/htdocs/luci-static/resources/view/system/led-trigger/rssi.js
new file mode 100644
index 000000000..611adc8b1
--- /dev/null
+++ b/applications/luci-app-ledtrig-rssi/htdocs/luci-static/resources/view/system/led-trigger/rssi.js
@@ -0,0 +1,38 @@
+'use strict';
+'require form';
+'require tools.widgets as widgets';
+
+return L.Class.extend({
+	trigger: _('rssi (service)'),
+	kernel: false,
+	addFormOptions(s){
+		var o;
+
+		o = s.option(widgets.DeviceSelect, '_rssi_iface', _('Device'));
+		o.rmempty = true;
+		o.ucioption = 'iface';
+		o.modalonly = true;
+		o.noaliases = true;
+		o.depends('trigger', 'rssi');
+
+		o = s.option(form.Value, 'minq', _('Minimal quality'));
+		o.rmempty = true;
+		o.modalonly = true;
+		o.depends('trigger', 'rssi');
+
+		o = s.option(form.Value, 'maxq', _('Maximal quality'));
+		o.rmempty = true;
+		o.modalonly = true;
+		o.depends('trigger', 'rssi');
+
+		o = s.option(form.Value, 'offset', _('Value offset'));
+		o.rmempty = true;
+		o.modalonly = true;
+		o.depends('trigger', 'rssi');
+
+		o = s.option(form.Value, 'factor', _('Multiplication factor'));
+		o.rmempty = true;
+		o.modalonly = true;
+		o.depends('trigger', 'rssi');
+	}
+});