surface-tools/surface-tools-20180914git-autorotate-chuwi-fix-and-touchscreen.patch

diff -Nru surface-tools-20180914git.orig/autorotate/autorotate surface-tools-20180914git/autorotate/autorotate
--- surface-tools-20180914git.orig/autorotate/autorotate	2019-08-03 21:13:46.720000000 +0200
+++ surface-tools-20180914git/autorotate/autorotate	2019-08-03 21:14:01.072000000 +0200
@@ -3,12 +3,14 @@
 #####CONFIGURATION#####
 #sensorname="accel_3d"
 
-#screenname="eDP1"
+screenname = None
+touchname = None
 
 #####PROGRAM CODE#####
 #Do not change unless you know what you are doing!
 
 xrandr="/usr/bin/xrandr"
+xinput="/usr/bin/xinput"
 
 resourcepaths=[
 	"./",
@@ -36,6 +38,7 @@
 
 hasAppIndicator = True
 try:
+    gi.require_version('AppIndicator', '0.1')
     from gi.repository import AppIndicator3 as AppIndicator
 except:
     hasAppIndicator = False
@@ -46,9 +49,15 @@
     out = p.stdout.read().strip()
     return out  #This is the stdout from the shell command
 
-def twos_comp(val):
-    if val & (1 << (16-1)) != 0:
-        val = val - (1 << 16)
+def twos_comp(val, scale):
+    if scale:
+        # Chuwi
+        val = val * scale / 9.8
+    else:
+        # Microsoft Surface (unsupported)
+        print 1 << 16
+        if val & (1 << (16-1)) != 0:
+            val = val - (1 << 16)
     return val
 
 def getOrientation(accelX, accelY, accelZ):
@@ -56,18 +65,32 @@
     absAccelY = abs(accelY)
     absAccelZ = abs(accelZ)
 
-    if absAccelZ > 4 * absAccelX and absAccelZ > 4 * absAccelY:
-        orientation = "flat"
-    elif 3 * absAccelY > 2 * absAccelX:
-        orientation = "inverted" if accelY > 0 else "normal"
-    else:
-        orientation = "left" if accelX > 0 else "right"
+    orientation = "nochange"
+    if absAccelZ > 0.5:
+        orientation = "nochange"
+    elif absAccelX > 3 * absAccelY:
+        orientation = "normal" if accelX > 0 else "inverted"
+    elif absAccelY > 3 * absAccelX:
+        orientation = "right" if accelY > 0 else "left"
 
     return orientation
 
 def rotate(orientation):
-    if orientation in orientations:
+    if orientation in orientations and screenname is not None:
         subprocess.call([xrandr, "--output", screenname, "--rotate", orientation])
+        if touchname is not None:
+            if orientation == "normal":
+                subprocess.call([xinput, "set-prop", "pointer:" + touchname, "Coordinate Transformation Matrix",
+                    "0", "0", "0", "0", "0", "0", "0", "0", "0"])
+            elif orientation == "inverted":
+                subprocess.call([xinput, "set-prop", "pointer:" + touchname, "Coordinate Transformation Matrix",
+                    "-1", "0", "1", "0", "-1", "1", "0", "0", "1"])
+            elif orientation == "right":
+                subprocess.call([xinput, "set-prop", "pointer:" + touchname, "Coordinate Transformation Matrix",
+                    "0", "1", "0", "-1", "0", "1", "0", "0", "1"])
+            elif orientation == "left":
+                subprocess.call([xinput, "set-prop", "pointer:" + touchname, "Coordinate Transformation Matrix",
+                    "0", "-1", "1", "1", "0", "0", "0", "0", "1"])
 
 def toggleRotLock(event):
     global rotlock
@@ -84,14 +107,14 @@
         icon.set_from_pixbuf(lockrot if rotlock else unlockrot)
 
 def checkRotation():
-    if not rotlock:
-        device = pyudev.Device.from_path(context, path)
-        accelX = twos_comp(device.attributes.asint("in_accel_x_raw"))
-        accelY = twos_comp(device.attributes.asint("in_accel_y_raw"))
-        accelZ = twos_comp(device.attributes.asint("in_accel_z_raw"))
-
-        orientation = getOrientation(accelX, accelY, accelZ)
+    device = pyudev.Device.from_path(context, path)
+    scale = float(device.attributes.__getitem__("in_accel_scale"))
+    accelX = twos_comp(device.attributes.asint("in_accel_x_raw"), scale)
+    accelY = twos_comp(device.attributes.asint("in_accel_y_raw"), scale)
+    accelZ = twos_comp(device.attributes.asint("in_accel_z_raw"), scale)
+    orientation = getOrientation(accelX, accelY, accelZ)
 
+    if not rotlock and orientation != "nochange":
         global prevorientation
         if orientation != prevorientation:
             prevorientation = orientation
@@ -121,6 +144,20 @@
         screenname = out
         break
 
+# Cache the xinput info
+XINPUT_INFO = run_shell_cmd('xinput --list --name-only')
+
+# Find the display we are interested to move (= the laptop panel)
+POSSIBLE_OUTPUT = [ "CHPN0001:00" ]
+for out in POSSIBLE_OUTPUT:
+    match = re.search("^" + out + "$",
+                     XINPUT_INFO,
+                     re.MULTILINE
+                     )
+    if match:
+        touchname = out
+        break
+
 path = device.device_path
 
 prevorientation = ""
@@ -169,5 +206,3 @@
         Gtk.main()
     else:
         checkRotation()
-
-