Qt到Cortex-A8的移植

Qt到Cortex-A8的移植

                                                                                               作者：凤竹郎 2012-10-11

一、 前言

准备工作：交叉编译好的qt4.7.3的库，交叉编译好的tslib库，交叉编译好的mobility库。以及交叉编译好的Qt APP程序。

Qt4.7标准键盘可以正常使用，不需要配置键盘选项，之前版本可能需要配置-qt-kbd-usb选项。Qt4.7支持触摸屏需要配置-qt­-mouse-tslib选项，默认支持-qt­-mouse-linuxtp/pc选项，既支持鼠标。

二、 内核配置和编译

修改配置文件

#vim ~/arm/arch/configs/omap3_stalker_defconfig

1、 支持sonix的摄像头

[*] USB support --->                                                                              

--- USB support                                                                                    

<*>  Support for Host-side USB 

<*> Multimedia support --->                                                                       

--- Multimedia support                                                                             

*** Multimedia core support ***                                                               <*>  Video For Linux                                                                              

[*]    Enable Video For Linux API 1 (DEPRECATED)                                                  

[*]  Video capture adapters --->                                                                 

[*]  V4L USB devices --->  

[*]    UVC input events device support 

CONFIG_USB_SN9C102=y     #

CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y #

CONFIG_USB_GSPCA_SONIXB=y #

CONFIG_USB_GSPCA_SONIXJ=y #

 

2、 支持USB标准键盘

Device Drivers --->                                                                                        

Input device support --->                                                                             

<*>  Mouse interface                                                                     

[*]  Mice --->                                                                          

CONFIG_INPUT_MOUSE=y # is not set

CONFIG_INPUT_MOUSEDEV=y # is not set

         #cd /home/ema/dvsdk/ti-dvsdk_dm3730-evm_4_02_00_06/psp/linux-2.6.32-psp03.00.01.06.sdk

         #sudo make CROSS_COMPILE=arm-none-linux-gnueabi- ARCH=arm omap3_stalker_defconfig

         #make CROSS_COMPILE=arm-none-linux-gnueabi- ARCH=arm

         #make CROSS_COMPILE=arm-none-linux-gnueabi- ARCH=arm uImage

三、 移植Qt库，tslib库，mobility库，设置环境变量

1、 PC机设置

1.1编译Qt4.7前设置

vim ~/.bashrc

export LD_LIBRARY_PATH=/home/ema/dvsdk/ti-dvsdk_dm3730-evm_4_02_00_06/omap35x_graphics_sdk_4.00.00.01/gfx_dbg_es2.x/freedesktop/kdrive/usr/X11R6_SGX/lib:$LD_LIBRARY_PATH

export PATH=/usr/local/arm/arm-2009q1/bin:$PATH

export LD_LIBRARY_PATH=/usr/local/arm/arm-2009q1/lib:$LD_LIBRARY_PATH

#export PKG_CONFIG_PATH=/usr/local/arm/arm-2009q1/lib/lib-arm/lib/pkgconfig:$PKG_CONFIG_PATH

export LD_LIBRARY_PATH=/home/ema/dvsdk/ti-dvsdk_dm3730-evm_4_02_00_06/linux-devkit/arm-none-linux-gnueabi/usr/lib:$LD_LIBRARY_PATH

export PKG_CONFIG_PATH=/home/ema/dvsdk/ti-dvsdk_dm3730-evm_4_02_00_06/linux-devkit/arm-none-linux-gnueabi/usr/lib/pkgconfig:$PKG_CONFIG_PATH

export LD_LIBRARY_PATH=/home/ema/dvsdk/ti-dvsdk_dm3730-evm_4_02_00_06/omap35x_graphics_sdk_4.00.00.01/gfx_dbg_es2.x:$LD_LIBRARY_PATH

1.2编译Qt4.7后设置

#ARM embedded enviroment Code build and compile

export PATH=/usr/local/qt-emembeded-4.7.3-arm-linux/bin:$PATH

export LD_LIBRARY_PATH=/usr/local/qt-emembeded-4.7.3-arm-linux/lib:$LD_LIBRARY_PATH

export QMAKESPEC=/usr/local/qt-emembeded-4.7.3-arm-linux/mkspecs/qws/linux-omap3-g++

#Mobility libs

export LD_LIBRARY_PATH=/usr/local/qt-mobility-1.2.0-lib/lib:$LD_LIBRARY_PATH

2、开发板设置

        #vim etc/profile

export LD_LIBRARY_PATH=/usr/local/qt-emembeded-4.7.3-arm-linux/lib:LD_LIBRARY_PATH

export LD_LIBRARY_PATH=/usr/local/qt-mobility-1.2.0-lib/lib:$LD_LIBRARY_PATH

export TSLIB_ROOT=/usr/local/tslib

export LD_LIBRARY_PATH=$TSLIB_ROOT/lib:$LD_LIBRARY_PATH

export LD_LIBRARY_PATH=/usr/local/SDL-ARM-linux-gcc4.3.3/lib:$LD_LIBRARY_PATH

export PATH=/usr/local/qt-emembeded-4.7.3-arm-linux/bin:$PATH

export QT_QWS_FONTDIR=/usr/local/qt-emembeded-4.7.3-arm-linux/lib/fonts

export QT_PLUGIN_PATH=/usr/local/qt-emembeded-4.7.3-arm-linux/plugins

export QWS_MOUSE_PROTO="mouseman:/dev/input/event6 tslib:/dev/input/touchscreen0"

export QWS_USB_KEYBOARD=/dev/input/envent4

export QWS_SIZE=800X600

export QWS_DISPLAY="LinuxFb:mmWidth100:mmHeight130:0"

export TSLIB_CONSOLEDEVICE=none

export TSLIB_TSDEVICE=/dev/input/touchscreen0

export TSLIB_FBDEVICE=/dev/fb0

export TSLIB_CALIBFILE=/etc/pointercal

export TSLIB_PLUGINDIR=$TSLIB_ROOT/lib/ts

export TSLIB_CONFFILE=$TSLIB_ROOT/etc/ts.conf

#export SDL_NOMOUSE=1              

以上配置可以去除Qt花屏现象，不要设置QWS_MOUSE_PROTO变量，否则可能出现Qt触摸屏显示触摸正常，Qt鼠标不可用现象。SDL可正常使用。                                                               

四、 交叉编译或拷贝交叉编译库（Gstreamer plugin，alsa，jpeg，png，freetype，phonon，dbus···）

$./qt –qws

此时会报一些错误，差GStreamer的一些相关库，需要从DVSDK上拷贝过来，可能还有png等相关库还需拷贝：

DVSDK库路径：/home/ema/dvsdk/ti-*/linux-devit/arm-*/usr/lib

$cd /usr/lib

$cp ~/libgthread-2.0 .* ./

$cp ~/libgtreamer-1.10.* ./

$cp ~/libgobject-2.0.* ./

$cp ~/libgmoudle-2.0.* ./

$cp ~/libglib-2.0.* ./

$cp ~/libgstinsterfaces-0.10.* ./

$cp ~/libgstvideo-0.10.* ./

$cp ~/libgstbase-0.10.* ./

现在运行IR GUI可以看到USB camera图像出来了，gui也显示完好。

 

五、 触摸屏校验

1、设置环境变量：

$vim /etc/profile

export TSLIB_ROOT=/usr/local/tslib

export TSLIB_CONSOLEDEVICE=none

export TSLIB_TSDEVICE=/dev/input/touchscreen0

export TSLIB_FBDEVICE=/dev/fb0

export TSLIB_CALIBFILE=/etc/pointercal

export TSLIB_PLUGINDIR=$TSLIB_ROOT/lib/ts

export TSLIB_CONFFILE=$TSLIB_ROOT/etc/ts.conf

2、检验:

$reboot

$cd /usr/local/ts_calibrate

$ ./ ts_calibrate

$./ts_test

$reboot

六、 触摸屏和鼠标的切换

1、 触摸屏单独模式

#export QWS_MOUSE_PROTO=”tslib: /dev/input/touchscreen0”

 

2、 鼠标、触摸屏双模式

#export QWS_MOUSE_PROTO=””

这时候鼠标可以准确使用，触摸屏能正常使用。

3、鼠标键盘正常使用

export QWS_MOUSE_PROTO="tslib:/dev/input/touchscreen0 mouseman:/dev/input/mice"

七、 SD卡系统启动盘制作

      #cd source/SD-install

      #sudo fdisk -l

      #sudo ./mkcard.sh /dev/sdc                 //carefully, not sdc1

          虚拟机断开 SD卡连接,重新连接上,用“df”命令就可以看到已经分好两个分区。   //Maybe need serveries times.

      #df

      #sudo cp MLO /media/boot

      #sync

      #sudo cp u-boot.bin /media/boot

      #sudo cp uImage /media/boot

      #sudo tar jxvf evm_fs.tar.bz2 -C /media/rootfs

      #umount /media/boot

      #umount /media/rootfs

          从虚拟机里断开 USB连接,取出 SD 卡插到开发板,上电启动开发板

八、 从NANDFlash启动

NAND Flash系统映像更新

ØNAND FLASH分区：

* 0x00000000-0x00080000 : "X-Loader"

* 0x00080000-0x00260000 : "U-Boot"

* 0x00260000-0x00280000 : "U-Boot environment data"

* 0x00280000-0x00680000 : "Kernel"

Ø对于128MB的核心板：

* 0x00680000-0x08000000 : "File System"

Ø对于256MB的核心板：

* 0x00680000-0x10000000 : "File System"

Ø下面的指南是使用SD卡引导将镜像写入到NAND FLASH

准备：

（1）准备一个可启动的SD卡。

（2）请确保以下文件在FAT32分区的SD卡里面：60

MLO (X-Loader)

u-boot.bin (U-Boot)

uImage (Linux kernel image)

ubi.img (UBIFS file system image)

上面列出的文件可以从这里下载http://code.google.com/p/ema3730/downloads/list

ØX-Loader是第一阶段引导加载程序，使用下面的命令烧写X-Loader到NAND FLASH：

OMAP3 Stalker #mmc init OMAP3 Stalker #fatload mmc 0:1 80000000 MLO OMAP3 Stalker #nandecc hw OMAP3 Stalker #nand erase 0 80000 OMAP3 Stalker #nand write.i 80000000 0 80000

 

ØU-Boot是第二阶段引导加载程序，使用下面的命令烧写U-Boot到NAND FLASH：

OMAP3 Stalker #mmc init OMAP3 Stalker #fatload mmc 0:1 80000000 u-boot.bin OMAP3 Stalker #nandecc sw OMAP3 Stalker #nand erase 80000 160000 OMAP3 Stalker #nand write.i 80000000 80000 160000

 

Ø使用下面的命令烧写内核镜像到NAND FLASH：

OMAP3 Stalker #mmc init OMAP3 Stalker #fatload mmc 0:1 80000000 uImage OMAP3 Stalker #nandecc sw OMAP3 Stalker #nand erase 280000 400000 OMAP3 Stalker #nand write.i 80000000 280000 400000

 

Ø我们使用的文件系统UBIFS。使用下面的命令加载文件系统镜像到RAM。这里举例的文件系统镜像名是：ubi.img

OMAP3 Stalker #mmc init OMAP3 Stalker #fatload mmc 0:1 84000000 ubi.img OMAP3 Stalker #nandecc sw

 

Ø对于128MB的核心板，使用下面的命令擦除文件系统分区：

OMAP3 Stalker #nand erase 680000 8000000

 

Ø对于256MB的核心板，使用下面的命令擦除文件系统分区：

OMAP3 Stalker #nand erase 680000 10000000

 

Ø烧写文件系统镜像到NAND FLASH。这里举例的文件系统镜像的大小是0xD40000 (Bytes)，具体大小可根据实际镜像大小来调整:

OMAP3 Stalker #nand write.i 84000000 680000 D40000

当所有上述工作完成后就可以关掉电源，把SD卡拔出来，设置好拨码开关（111100），重新上电启动开发板,在U-BOOT里设置好传给内核的参数就可以从NAND FLASH启动。

 

九、  设置显示方式（TV、LCD、TS）

进入bios设置：

1、TV:

      #setenv dvimode 800x600MR-16@60

 

      #setenv defaultdisplay

 

      # saveenv

 2、LCD:

      #setenv dvimode 800x600MR-16@60

 

      #setenv defaultdisplay dvi

 

      #saveenv

3、TS(4.3寸触摸屏):

#setenv boardmodel SBC35X-B1-1880-LUAC0 

 

#setenvdefaultdisplaylcd043

 

#setenv dvimode 480x272MR-16@60

 

#saveenv

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