Add touch navigation input source

Bug: 8276741
Change-Id: I674b9804bf9ae76d694ae7073b54a7d43474a43c
diff --git a/services/input/InputReader.cpp b/services/input/InputReader.cpp
index bc8df18..43d76bb 100644
--- a/services/input/InputReader.cpp
+++ b/services/input/InputReader.cpp
@@ -2788,6 +2788,8 @@
             mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_SCREEN;
         } else if (deviceTypeString == "touchPad") {
             mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_PAD;
+        } else if (deviceTypeString == "touchNavigation") {
+            mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_NAVIGATION;
         } else if (deviceTypeString == "pointer") {
             mParameters.deviceType = Parameters::DEVICE_TYPE_POINTER;
         } else if (deviceTypeString != "default") {
@@ -2832,6 +2834,9 @@
     case Parameters::DEVICE_TYPE_TOUCH_PAD:
         dump.append(INDENT4 "DeviceType: touchPad\n");
         break;
+    case Parameters::DEVICE_TYPE_TOUCH_NAVIGATION:
+        dump.append(INDENT4 "DeviceType: touchNavigation\n");
+        break;
     case Parameters::DEVICE_TYPE_POINTER:
         dump.append(INDENT4 "DeviceType: pointer\n");
         break;
@@ -2885,6 +2890,9 @@
         if (hasStylus()) {
             mSource |= AINPUT_SOURCE_STYLUS;
         }
+    } else if (mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_NAVIGATION) {
+        mSource = AINPUT_SOURCE_TOUCH_NAVIGATION;
+        mDeviceMode = DEVICE_MODE_UNSCALED;
     } else {
         mSource = AINPUT_SOURCE_TOUCHPAD;
         mDeviceMode = DEVICE_MODE_UNSCALED;