Add support for Kobo runtime detection, and its single touch protocol.

frontend/ui/device.lua

@@ -21,12 +21,16 @@ function Device:getModel()
 	if cpu_mod == "MX50" then
 		-- for KPW
 		local pw_test_fd = lfs.attributes("/sys/devices/system/fl_tps6116x/fl_tps6116x0/fl_intensity")
+		-- for Kobo
+		local kg_test_fd = lfs.attributes("/bin/kobo_config.sh")
 		-- for KT
 		local kt_test_fd = lfs.attributes("/sys/devices/platform/whitney-button")
 		-- another special file for KT is Neonode zForce touchscreen:
 		-- /sys/devices/platform/zforce.0/
 		if pw_test_fd then
 			self.model = "KindlePaperWhite"
+		elseif kg_test_fd then
+			self.model = "Kobo"
 		elseif kt_test_fd then
 			self.model = "KindleTouch"
 		else
@@ -80,7 +84,7 @@ function Device:isTouchDevice()
 	if not self.model then
 		self.model = self:getModel()
 	end
-	return (self.model == "KindlePaperWhite") or (self.model == "KindleTouch") or util.isEmulated()
+	return (self.model == "KindlePaperWhite") or (self.model == "KindleTouch") or (self.model == "Kobo") or util.isEmulated()
 end
 
 function Device:setTouchInputDev(dev)

frontend/ui/gesturedetector.lua

@@ -1,4 +1,5 @@
 require "ui/geometry"
+require "ui/device"
 
 GestureRange = {
 	ges = nil,
@@ -602,6 +603,10 @@ end
   @return adjusted gesture.
 --]]
 function GestureDetector:adjustGesCoordinate(ges)
+	local dev_mod = Device:getModel()
+	if dev_mod == "Kobo" then
+		ges.pos.x, ges.pos.y = (Screen.width - ges.pos.y), (ges.pos.x)
+	end
 	if Screen.cur_rotation_mode == 1 then
 		-- in landscape mode
 		if ges.pos then

frontend/ui/inputevent.lua

@@ -18,6 +18,11 @@ SYN_REPORT = 0
 SYN_CONFIG = 1
 SYN_MT_REPORT = 2
 
+-- For single-touch events (ABS.code).
+ABS_X = 00
+ABS_Y = 01
+ABS_PRESSURE = 24
+
 -- For multi-touch events (ABS.code).
 ABS_MT_SLOT = 47
 ABS_MT_POSITION_X = 53
@@ -271,9 +276,11 @@ function Input:init()
 		-- SDL key codes
 		self.event_map = self.sdl_event_map
 	else
-		input.open("fake_events")
 		local dev_mod = Device:getModel()
-		if dev_mod ~= "KindleTouch" then
+		if dev_mod ~= "Kobo" then
+			input.open("fake_events")
+		end
+		if dev_mod ~= "KindleTouch" and dev_mod ~= "Kobo" then
 			-- event0 in KindleTouch is "WM8962 Beep Generator" (useless)
 			Device:setTouchInputDev("/dev/input/event0")
 			input.open("/dev/input/event0")
@@ -305,6 +312,11 @@ function Input:init()
 				return ev
 			end
 			print(_("Auto-detected Kindle Touch"))
+		elseif dev_mod == "Kobo" then
+			input.open("/dev/input/event1")
+			Device:setTouchInputDev("/dev/input/event1")
+			input.open("/dev/input/event0") -- Light button and sleep slider
+			print("Auto-detected Kobo")
 		elseif dev_mod == "Kindle4" then
 			print(_("Auto-detected Kindle 4"))
 			self:adjustKindle4EventMap()
@@ -453,9 +465,9 @@ function Input:handleTouchEv(ev)
 			end
 		end
 	elseif ev.type == EV_ABS then
-			if #self.MTSlots == 0 then
-				table.insert(self.MTSlots, self:getMtSlot(self.cur_slot))
-			end
+		if #self.MTSlots == 0 then
+			table.insert(self.MTSlots, self:getMtSlot(self.cur_slot))
+		end
 		if ev.code == ABS_MT_SLOT then
 			if self.cur_slot ~= ev.value then
 				table.insert(self.MTSlots, self:getMtSlot(ev.value))
@@ -463,9 +475,15 @@ function Input:handleTouchEv(ev)
 			self.cur_slot = ev.value
 		elseif ev.code == ABS_MT_TRACKING_ID then
 			self:setCurrentMtSlot("id", ev.value)
-		elseif ev.code == ABS_MT_POSITION_X then
+		elseif ev.code == ABS_PRESSURE then
+			if ev.value ~= 0 then
+				self:setCurrentMtSlot("id", 1)
+			else
+				self:setCurrentMtSlot("id", -1)
+			end
+		elseif ev.code == ABS_MT_POSITION_X or ev.code == ABS_X then
 			self:setCurrentMtSlot("x", ev.value)
-		elseif ev.code == ABS_MT_POSITION_Y then
+		elseif ev.code == ABS_MT_POSITION_Y or ev.code == ABS_Y then
 			self:setCurrentMtSlot("y", ev.value)
 		end
 	end