DO NOT MERGE initial suspend support for Kobo

Makefile

@@ -13,7 +13,7 @@ INSTALL_DIR=koreader-$(MACHINE)
 
 # files to link from main directory
 INSTALL_FILES=reader.lua frontend resources koreader.sh \
-		koreader_kobo.sh defaults.lua \
+		koreader_kobo.sh kobo_suspend.sh defaults.lua \
 		git-rev README.md COPYING
 
 # for gettext

frontend/ui/device.lua

@@ -152,6 +152,24 @@ function Device:outofScreenSaver()
 	self.screen_saver_mode = false
 end
 
+function Device:Suspend()
+	UIManager:show(InfoMessage:new{
+			text = _("Standby"),
+			timeout = 4,
+		})
+	if self.fl ~= nil then
+		self.fl:sleep()
+	end
+	os.execute("./kobo_suspend.sh &")
+end
+
+function Device:Resume()
+	if self.fl ~= nil then
+		self.fl:resume()
+	end
+	-- Screen:refresh(0)
+end
+
 function Device:usbPlugIn()
 	--os.execute("echo 'usb in' >> /mnt/us/event_test.txt")
 	if self.charging_mode == false and self.screen_saver_mode == false then

frontend/ui/inputevent.lua

@@ -423,6 +423,15 @@ function Input:handleKeyBoardEv(ev)
 		return keycode
 	end
 
+	-- Kobo sleep
+	if keycode == "Power" then
+		if ev.value == EVENT_VALUE_KEY_PRESS then
+			return "Suspend"
+		else
+			return "Resume"
+		end
+	end
+
 	if ev.value == EVENT_VALUE_KEY_RELEASE
 	and keycode == "Light" then
 		return keycode

frontend/ui/uimanager.lua

@@ -293,6 +293,10 @@ function UIManager:run()
 				Device:usbPlugOut()
 			elseif input_event == "Light" then
 				Device:getFrontlight():toggle()
+			elseif input_event == "Suspend" then
+				Device:Suspend()
+			elseif input_event == "Resume" then
+				Device:Resume()
 			else
 				self:sendEvent(input_event)
 			end

kobo_suspend.sh

@@ -0,0 +1,30 @@
+#!/bin/sh
+export PATH=$PATH:/sbin:/usr/sbin
+
+ts_file=/tmp/back_from_suspend
+
+if test -e $ts_file ; then
+	sec_back_suspend=$(stat -t $ts_file | awk '{print $13}' )
+	delta_sec=$(( $(date +%s) - $sec_back_suspend ))
+	echo sec_back_suspend=$sec_back_suspend delta_sec=$delta_sec >> /tmp/event_test.txt
+	test $delta_sec -gt 2 || exit 
+fi
+
+sleep 1
+
+if lsmod | grep -q sdio_wifi_pwr ; then 
+	wlarm_le -i eth0 down
+	ifconfig eth0 down
+	/sbin/rmmod -r dhd
+	/sbin/rmmod -r sdio_wifi_pwr
+fi
+
+
+sleep 1
+
+sync
+echo 1 > /sys/power/state-extended
+echo mem > /sys/power/state
+echo 0 > /sys/power/state-extended
+
+touch $ts_file