Add cpu scale frequency configuration

luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua

@@ -78,6 +78,30 @@ function settings_add()
 	ucic:save("firewall")
 	ucic:commit("firewall")
 	
+	-- Set CPU scaling minimum frequency
+	local scaling_min_freq = luci.http.formvalue("scaling_min_freq") or ""
+	if scaling_min_freq ~= "" then
+		ucic:set("openmptcprouter","settings","scaling_min_freq",scaling_min_freq)
+		ucic:save("openmptcprouter")
+		ucic:commit("openmptcprouter")
+	end
+
+	-- Set CPU scaling maximum frequency
+	local scaling_max_freq = luci.http.formvalue("scaling_max_freq") or ""
+	if scaling_max_freq ~= "" then
+		ucic:set("openmptcprouter","settings","scaling_max_freq",scaling_max_freq)
+		ucic:save("openmptcprouter")
+		ucic:commit("openmptcprouter")
+	end
+
+	-- Set CPU governor
+	local scaling_governor = luci.http.formvalue("scaling_governor") or ""
+	if scaling_governor ~= "" then
+		ucic:set("openmptcprouter","settings","scaling_governor",scaling_governor)
+		ucic:save("openmptcprouter")
+		ucic:commit("openmptcprouter")
+	end
+	
 	-- Done, redirect
 	luci.http.redirect(luci.dispatcher.build_url("admin/system/openmptcprouter/settings"))
 	return

luci-app-openmptcprouter/luasrc/view/openmptcprouter/settings.htm

@@ -20,6 +20,40 @@
 		</div>
 	    </div>
 	</fieldset>
+	<% if nixio.fs.access("/sys/devices/system/cpu/cpufreq/policy0/scaling_min_freq") then %>
+	<fieldset class="cbi-section" id="system">
+	<legend><%:Systems settings%></legend>
+	    <div class="cbi-section-descr"></div>
+	    <div class="cbi-value">
+	        <label class="cbi-value-title"><%:Minimum scaling CPU frequency%></label>
+	        <div class="cbi-value-field">
+		    <input type="text" name="scaling_min_freq" class="cbi-input-text" value="<%=tonumber((luci.sys.exec("echo /sys/devices/system/cpu/cpufreq/policy0/scaling_min_freq")):match("%d+"))%>">
+		</div>
+	    </div>
+	    <div class="cbi-value">
+	        <label class="cbi-value-title"><%:Maximum scaling CPU frequency%></label>
+	        <div class="cbi-value-field">
+		    <input type="text" name="scaling_max_freq" class="cbi-input-text" value="<%=tonumber((luci.sys.exec("echo /sys/devices/system/cpu/cpufreq/policy0/scaling_max_freq")):match("%d+"))%>">
+		</div>
+	    </div>
+	    <div class="cbi-value">
+	        <label class="cbi-value-title"><%:Scaling governor%></label>
+	        <div class="cbi-value-field">
+		    <select class="cbi-input-select" name="scaling_governor">
+			<% 
+			    governor=luci.sys.exec("cat /sys/devices/system/cpu/cpufreq/policy0/scaling_governor")
+			    available_governors=luci.sys.exec("cat /sys/devices/system/cpu/cpufreq/policy0/scaling_available_governors")
+			    for gov in string.gmatch(available_governors, "[^%s]+") do
+			%>
+			<option value="<%=gov%>" <% if governor == gov then %>selected="selected"<% end %>>
+			<% 
+			    end
+			%>
+		    </select>
+		</div>
+	    </div>
+	</fieldset>
+	<% end %>
     </div>
     <div class="cbi-page-actions">
 	<input type="hidden" name="token" value="<%=token%>" />

luci-app-openmptcprouter/root/etc/init.d/openmptcprouter

@@ -0,0 +1,27 @@
+#!/bin/sh /etc/rc.common
+
+START=5
+
+USE_PROCD=1
+
+start_service() {
+	local scaling_min_freq scaling_max_freq
+	config_load openmptcprouter
+	config_get scaling_min_freq settings scaling_min_freq
+	[ -n "$scaling_min_freq" ] && {
+		echo $scaling_min_freq > /sys/devices/system/cpu/cpufreq/policy*/scaling_min_freq
+	}
+	config_get scaling_max_freq settings scaling_max_freq
+	[ -n "$scaling_max_freq" ] && {
+		echo $scaling_max_freq > /sys/devices/system/cpu/cpufreq/policy*/scaling_max_freq
+	}
+	config_get scaling_governor settings scaling_governor
+	[ -n "$scaling_governor" ] && {
+		echo $scaling_governor > /sys/devices/system/cpu/cpufreq/policy*/scaling_governor
+	}
+}
+
+reload_service() {
+	rc_procd start_service
+	return 0
+}

luci-app-openmptcprouter/root/etc/uci-defaults/openmptcprouter

@@ -0,0 +1,7 @@
+#!/bin/sh
+uci -q batch <<-EOF
+    delete ucitrack.@openmptcprouter[-1]
+    add ucitrack openmptcprouter
+    set ucitrack.@openmptcprouter[-1].init=openmptcprouter
+    commit ucitrack
+EOF