适配TFT屏与HDMI功能
本章节将讲解如何基于 Tina5 v1.2 SDK 在 T113s3-i 开发板上实现TFT屏与HDMI显示功能。
如果需要先查看显示效果，可以下载下面这个镜像：
T113i-DevKit-Support-MIPI-To-HDMI
硬件可以准备这些：
韦东山全志T113i嵌入式Linux开发板超高性价比板载WIFI MIPI显示-tmall.com天猫
一、获取Tina5-V1.2_SDK源码
1. 获取源码
获取源码链接如下： https://pan.baidu.com/s/1A_HER2QyTk0BIVxOuGoAyQ?pwd=n8ii
上传至虚拟机~/Downloads/ 。获取文件如下：
.
├── md5.txt
├── 100ASK_T113s3-PRO_TinaSDK5.tar.gz.00
├── 100ASK_T113s3-PRO_TinaSDK5.tar.gz.01
└── 100ASK_T113s3-PRO_TinaSDK5.tar.gz.02
0 directories, 4 files
执行以下指令，查看MD5校验值：
md5sum 100ASK_T113s3-PRO_TinaSDK5.tar.gz.0*
如下：
35577ee74334ee8bd9c5fcca844795b3 100ASK_T113s3-PRO_TinaSDK5.tar.gz.00
3420eef596165883cde2e14a41a12358 100ASK_T113s3-PRO_TinaSDK5.tar.gz.01
ad730f3b76e3943652b56c8c5335f52c 100ASK_T113s3-PRO_TinaSDK5.tar.gz.02
确保校验值对上。否则需要重新上传。
2. 解压源码
执行以下指令，解压源码：
cat 100ASK_T113s3-PRO_TinaSDK5.tar.gz.0* | tar -xzvf -
等待一段时间，即可解压完成。如下所示：
.
├── 100ASK_T113s3-PRO_TinaSDK5
├── md5.txt
├── 100ASK_T113s3-PRO_TinaSDK5.00
├── 100ASK_T113s3-PRO_TinaSDK5.01
└── 100ASK_T113s3-PRO_TinaSDK5.02
1 directory, 4 files
我们现在用的开发板是 T113-i，给SDK换个名称，并移动到 ~/ 目录。执行指令如下：
mv 100ASK_T113s3-PRO_TinaSDK5 T113i-Tina5.0-v1.2-SDK
mv T113i-Tina5.0-v1.2-SDK ~/
二、拉取SDK补丁包
1. 获取补丁包
补丁仓库目前已经更新，获取相应的补丁包，执行如下指令：
cd ~
git clone -b tft-and-hdmi --single-branch https://github.com/DongshanPI/T113i_DevKitF_Tina5SDK.git
2. 拷贝补丁包
执行以下指令，拷贝补丁包：
cd ~/T113i_DevKitF_Tina5SDK
cp * ~/T113i-Tina5.0-v1.2-SDK -rfvd
三、编译SDK
1. 下载编译环境依赖
编译SDK需要依赖虚拟机的环境，为了顺利编译SDK，执行如下指令：
sudo apt-get update
sudo apt-get install build-essential subversion git libncurses5-dev zlib1g-dev gawk flex quilt libssl-dev xsltproc libxml-parser-perl mercurial bzr ecj cvs unzip lib32z1 lib32z1-dev lib32stdc++6 libstdc++6 libc6:i386 libstdc++6:i386 lib32ncurses5 lib32z1 bison -y
2. 编译固件
进入源码目录，执行：
cd ~/T113i-Tina5.0-v1.2-SDK
source build/envsetup.sh
打印信息如下：
ubuntu@ubuntu1804:~/T113i-Tina5.0-v1.2-SDK$ source build/envsetup.sh
NOTE: The SDK(/home/ubuntu/T113i-Tina5.0-v1.2-SDK) was successfully loaded
load openwrt... ok
Please run lunch next for openwrt.
load buildroot,bsp...ok
Invoke . build/quick.sh from your shell to add the following functions to your environment:
croot / cl - Changes directory to the top of the tree
cbrandy - Changes directory to the brandy
cspl / cboot0 - Changes directory to the spl
csbi[10|14] / copensbi[10|14] - Changes directory to the opensbi
cu / cuboot / cboot - Changes directory to the uboot
cubsp / cubootbsp / cbootbsp - Changes directory to the uboot-bsp
carisc - Changes directory to the arisc
ck / ckernel - Changes directory to the kernel
cbsp - Changes directory to the bsp
cbsptest - Changes directory to the bsptest
cdts - Changes directory to the kernel's dts
cchip / cchips - Changes directory to the chip
cbin - Changes directory to the chip's bin
cboard / cconfigs / cbd - Changes directory to the board
crootfs - Changes directory to the rootfs
cdsp - Changes directory to the dsp
crtos - Changes directory to the rtos
crtoshal / crtos-hal - Changes directory to the rtos-hal
cbuild - Changes directory to the build
cbr - Changes directory to the buildroot
copenssl - Changes directory to the product's openssl-1.0.0
cout - Changes directory to the product's output
ckout / ckernelout - Changes directory to the kernel output
ctarget - Changes directory to the target
chostbin - Changes directory to the hostbin
cplat - Changes directory to the platform
ccommon - Changes directory to the common
Usage: build.sh [args]
build.sh - default build all
build.sh bootloader - only build bootloader
build.sh kernel - only build kernel
build.sh buildroot_rootfs - only build buildroot
build.sh uboot_menuconfig - edit uboot menuconfig
build.sh uboot_saveconfig - save uboot menuconfig
build.sh menuconfig - edit kernel menuconfig
build.sh saveconfig - save kernel menuconfig
build.sh recovery_menuconfig - edit recovery menuconfig
build.sh recovery_saveconfig - save recovery menuconfig
build.sh buildroot_menuconfig - edit buildroot menuconfig
build.sh buildroot_saveconfig - save buildroot menuconfig
build.sh clean - clean all
build.sh distclean - distclean all
build.sh pack - pack firmware
build.sh pack_debug - pack firmware with debug info output to card0
build.sh pack_secure - pack firmware with secureboot
Usage: pack [args]
pack - pack firmware
pack -d - pack firmware with debug info output to card0
pack -s - pack firmware with secureboot
pack -sd - pack firmware with secureboot and debug info output to card0
接下来 是板级配置，根据以下选项选择（如果发现序号不一样，只选择与下面同名字的选项）：
- All available platform:
linux - All available linux_dev:
buildroot - All available ic:
t113_i - All available board:
evb1_auto - All available flash:
default
执行指令如下：
./build.sh config
相关打印信息如下：
ubuntu@ubuntu1804:~/T113i-Tina5.0-v1.2-SDK$ ./build.sh config
08-01 06:25:47.354 4934 D mkcommon : ========ACTION List: mk_config ;========
08-01 06:25:47.355 4934 D mkcommon : options :
All available platform:
0. android
1. linux
Choice [linux]: 1
All available linux_dev:
0. bsp
1. buildroot
2. openwrt
Choice [buildroot]: 1
All available ic:
0. t113
1. t113_i
Choice [t113_i]: 1
All available board:
0. evb1_auto
Choice [evb1_auto]: 0
All available flash:
0. default
1. nor
Choice [default]: 0
08-01 06:26:02.140 4934 I mkcommon : kernel relative recovery defconfig: ../../../../../device/config/chips/t113_i/configs/evb1_auto/linux-5.4/config-5.4-recovery
08-01 06:26:02.141 4934 I mkcommon : kernel absolute recovery defconfig: /home/ubuntu/T113i-Tina5.0-v1.2-SDK/device/config/chips/t113_i/configs/evb1_auto/linux-5.4/config-5.4-recovery
08-01 06:26:02.158 4934 I mkcommon : Prepare toolchain ...
08-01 06:26:02.193 4934 I mkcommon : kernel defconfig: generate /home/ubuntu/T113i-Tina5.0-v1.2-SDK/out/t113_i/kernel/build/.config by /home/ubuntu/T113i-Tina5.0-v1.2-SDK/device/config/chips/t113_i/configs/evb1_auto/linux-5.4/config-5.4
08-01 06:26:02.195 4934 I mkcommon : Prepare toolchain ...
08-01 06:26:02.231 4934 D mkcommon : make: Entering directory '/home/ubuntu/T113i-Tina5.0-v1.2-SDK/kernel/linux-5.4'
08-01 06:26:02.235 4934 D mkcommon : make[1]: Entering directory '/home/ubuntu/T113i-Tina5.0-v1.2-SDK/out/t113_i/kernel/build'
08-01 06:26:02.379 4934 D mkcommon : GEN Makefile
08-01 06:26:02.402 4934 D mkcommon : *** Default configuration is based on '../../../../../device/config/chips/t113_i/configs/evb1_auto/linux-5.4/config-5.4'
08-01 06:26:02.798 4934 D mkcommon : #
08-01 06:26:02.799 4934 D mkcommon : # No change to .config
08-01 06:26:02.800 4934 D mkcommon : #
08-01 06:26:02.801 4934 D mkcommon : make[1]: Leaving directory '/home/ubuntu/T113i-Tina5.0-v1.2-SDK/out/t113_i/kernel/build'
08-01 06:26:02.803 4934 D mkcommon : make: Leaving directory '/home/ubuntu/T113i-Tina5.0-v1.2-SDK/kernel/linux-5.4'
make: Entering directory '/home/ubuntu/T113i-Tina5.0-v1.2-SDK/buildroot/buildroot-201902'
GEN /home/ubuntu/T113i-Tina5.0-v1.2-SDK/out/t113_i/evb1_auto/buildroot/buildroot/Makefile
../config/buildroot/allwinner/display/gpu_um_pub/Config.in:21:warning: config symbol defined without type
Config.in.legacy:1769:warning: choice value used outside its choice group
#
# configuration written to /home/ubuntu/T113i-Tina5.0-v1.2-SDK/out/t113_i/evb1_auto/buildroot/buildroot/.config
#
make: Leaving directory '/home/ubuntu/T113i-Tina5.0-v1.2-SDK/buildroot/buildroot-201902'
08-01 06:26:03.152 4934 I mkcommon : buildroot defconfig is sun8iw20p1_t113_defconfig
08-01 06:26:03.439 4934 I mkcommon : clean buildserver
08-01 06:26:03.442 4934 I mkcommon : prepare_buildserver
接着，开始编译SDK，执行以下指令（这里打印信息省略）：
./build.sh
出现以下信息，即是编译成功：
08-01 06:29:51.482 6805 D mkcommon : root (0)
08-01 06:29:51.483 6805 D mkcommon : Number of gids 1
08-01 06:29:51.484 6805 D mkcommon : root (0)
08-01 06:29:51.486 6805 I mkcommon : pack rootfs ok ...
08-01 06:29:51.487 6805 I mkcommon : ----------------------------------------
08-01 06:29:51.488 6805 I mkcommon : build OK.
08-01 06:29:51.490 6805 I mkcommon : ----------------------------------------
编译完成后，打包固件，执行指令如下：
./build.sh pack
最后，固件会存放在 /home/ubuntu/T113i-Tina5.0-v1.2-SDK/out/t113_i_linux_evb1_auto_uart0.img：
08-01 06:30:52.516 28395 D pack : FileLength=c0381c4
08-01 06:30:52.518 28395 D pack : BuildImg0
08-01 06:30:52.519 28395 D pack : Dragon execute image.cfg SUCCESS !
08-01 06:30:52.772 28395 D pack : ----------image is at----------
08-01 06:30:52.773 28395 I pack : 275M /home/ubuntu/T113i-Tina5.0-v1.2-SDK/out/t113_i_linux_evb1_auto_uart0.img
08-01 06:30:52.775 28395 D pack : pack finish
3. 烧录固件
参考 更新系统固件 | 东山Π 文档进行烧录我们编译出来的固件。
四、TFT和HDMI屏幕显示效果
烧录固件之后，默认会启动程序。
可以看到TFT屏显示如下：
接上HDMI屏幕，显示如下：
