Release of Dual OS Firmware for FirePrime Mass Produced Board with Touch Screen

busybee

Hi folks,

A new dual OS firmware for FirePrime mass produced board has been released. It comes with touch screen support!

You can download it at Google Drive:

   https://drive.google.com/file/d/ ... 2M/view?usp=sharing


Here're the snapshots:

busybee

1 Add touch screen support to FirePrime Linux
=============================================

1.1 Introduction
~~~~~~~~~~~~~~~~

  X11 window system uses evdev input driver to handle touch screen
  events. There're mainly two steps to add touch screen support:

  1. Add X11 configuration file to use evdev driver for touch screen.
  2. Make evdev support touch screen (also emulate right mouse button).


1.2 Configuration
~~~~~~~~~~~~~~~~~

  Create file `/etc/X11/xorg.conf.d/10-evdev-gslX680.conf' with
  following contents:

  ,----
  | Section "InputClass"
  |         Identifier "gslX680 evdev touchscreen"
  |         MatchProduct    "gslX680"
  |         MatchDevicePath "/dev/input/event*"
  |         Option "EmulateThirdButton" "true"
  |         Option "EmulateThirdButtonTimeout" "500"
  |         Option "EmulateThirdButtonMoveThreshold" "50"
  |         Driver "evdev"
  | EndSection
  `----


1.3 Make evdev support touch screen
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  The original evdev driver does not support Android input touch driver
  well. It needs some patches.

  Here're the main steps to patch and recompile a new one.


1.3.1 Install build environment and dependencies
------------------------------------------------

  ,----
  | sudo apt-get install build-essentials
  | sudo apt-get build-dep xserver-xorg-input-evdev
  `----


1.3.2 Fetch, patch, and compile the source code
-----------------------------------------------

  ,----
  | sudo apt-get source xserver-xorg-input-evdev
  | cd xserver-xorg-input-evdev-2.9.0/src
  | GITHUB=https://github.com/TeeFirefly/xf86-input-evdev/tree/ba37709e2aab50354c9925ca1e975779a16c67dc
  | wget $GITHUB/src/emuThird.c
  | wget $GITHUB/src/evdev.c
  | wget $GITHUB/src/evdev.h
  | cd ..
  | make -j4
  `----


1.3.3 Install the newly built module
------------------------------------

  ,----
  | mv /usr/lib/xorg/modules/input/evdev_drv.so /usr/lib/xorg/modules/input/evdev_drv.so.orig
  | cp src/.libs/evdev_drv.so /usr/lib/xorg/modules/input/evdev_drv.so
  `----

  Restart system to take effect