正点原子stm32mp157d移植Qt5.12.9 到触摸屏并能触摸控制

ARM开发板上运行Qt程序，并实现触摸功能
第一，需要第三方触摸库
第二，需要交叉编译Qt
第三，需要配置开发板的环境变量
总体分为几个部分：
1、触摸库tslib库或者使用qTUIO，tslib低版本只能单点触控，高版本可以实现多点触控，qUIO能实现多点触控，本教程主要使用tslib
2、编译Qt源码并移植到开发板的根文件系统下
3、设置环境变量/etc/profile文件
接下来详细说一下配置步骤

一、下载tslib源码

使用git获取最新源码

sudo git clone https://github.com/15903016222/tslib.git
sudo ./autogen.sh
./configure --prefix=/home/yzm/Linux/nfs/rootfs/tslib --host= arm-none-linux-gnueabihf-gcc
make clean
make
make install
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运行以上代码的过程中可能会因为主机ubuntu版本不同而出现一些错误，一般就是源码缺失头文件，在出现错误的源码文件中加入缺失的头文件就可以了。make install后就会在设置的路径下生成以下文件：

tslib文件夹的内容出现这些就证明编译成功。

二、交叉编译Qt5.12.9

首先，先去官网下载Qt5.12.9的源码，链接：Qt下载地址
下载后解压，更改配置文件

vim qtbase/mkspecs/linux-arm-gnueabi-g++/qmake.conf
#
# qmake configuration for building with arm-linux-gnueabi-g++
#

MAKEFILE_GENERATOR      = UNIX
CONFIG                 += incremental
QMAKE_INCREMENTAL_STYLE = sublib

include(../common/linux.conf)
include(../common/gcc-base-unix.conf)
include(../common/g++-unix.conf)

# modifications to g++.conf
QMAKE_CC                = /usr/local/arm/gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf/bin/arm-none-linux-gnueabihf-gcc 
QMAKE_CXX               = /usr/local/arm/gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf/bin/arm-none-linux-gnueabihf-g++ 
QMAKE_LINK              = /usr/local/arm/gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf/bin/arm-none-linux-gnueabihf-g++ 
QMAKE_LINK_SHLIB        = /usr/local/arm/gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf/bin/arm-none-linux-gnueabihf-g++ 

# modifications to linux.conf
QMAKE_AR                = /usr/local/arm/gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf/bin/arm-none-linux-gnueabihf-ar cqs
QMAKE_OBJCOPY           = /usr/local/arm/gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf/bin/arm-none-linux-gnueabihf-objcopy
QMAKE_NM                = /usr/local/arm/gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf/bin/arm-none-linux-gnueabihf-nm -P
QMAKE_STRIP             = /usr/local/arm/gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf/bin/arm-none-linux-gnueabihf-strip<font face="黑体"></font>
load(qt_config)

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交叉编译器根据自己的交叉编译器修改。
然后创建一个脚本

vim autoConfigure.sh
chmod 777 autoConfigure.sh
./autoConfigure
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内容如下

#!/bin/bash
./configure -prefix /home/yzm/Linux/nfs/rootfs/arm_qt \
-release \
-opensource \
-no-accessibility \
-make libs \
-xplatform linux-arm-gnueabi-g++ \
-optimized-qmake \
-pch \
-qt-zlib \
-qt-freetype \
-tslib \
-skip qtlocation \
-no-iconv \
-skip qtdeclarative \
-no-opengl \
-no-sse2 \
-no-openssl \
-no-cups \
-no-glib \
-no-pkg-config \
-no-separate-debug-info \
-tslib \
-I/home/yzm/Linux/nfs/rootfs/tslib/include \
-L/home/yzm/Linux/nfs/rootfs/tslib/lib \
-recheck-all    
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然后编译

make
make install
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三、配置开发板的环境变量

cd /etc/profile
export TSLIB_TSDEVICE=/dev/input/event0

export TSLIB_ROOT=/tslib/lib              
export TSLIB_TSDEVICE=/dev/input/event0   
export TSLIB_FBDEVICE=/dev/fb0            
export TSLIB_CONFFILE=/tslib/etc/ts.conf  
export TSLIB_PLUGINDIR=/tslib/lib/ts      
export TSLIB_CONSOLEDEVICE=none           
export TSLIB_CALIBFILE=/tslib/calibration 
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/tslib/lib

export QT_QPA_GENERIC_PLUGINS=tslib:/dev/input/event0        
export QT_QPA_FONTDIR=/arm_qt/lib/fonts               
export QT_QPA_PLATFORM_PLUGIN_PATH=/arm_qt/plugins          
export QT_QPA_PLATFORM=linuxfb:tty=/dev/fb0                  
export TSLIB_CALIBFILE=/etc/pointercal               
export QT_PLUGIN_PATH=/arm_qt/plugins/              
export LD_LIBRARY_PATH=/arm_qt/lib:$TSLIB_ROOT/lib  
export LD_PRELOAD=$TSLIB_ROOT/lib/libts.so


source /etc/profile
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