Linux_Logo 显示

使用 psplash 在嵌入式 Linux 开发板上实现自定义开机画面。

简介

psplash 是嵌入式 Linux 的轻量级开机画面工具，用于显示静态 Logo 和进度条。

适用场景： H618 系列开发板（Ubuntu 22.04）及其他 ARM Linux 开发板。

环境配置

# 安装依赖
sudo apt update
sudo apt install build-essential autoconf automake libtool git libgdk-pixbuf2.0-dev -y

# 下载源码
git clone git://git.yoctoproject.org/psplash
cd psplash

psplash 编译

1. 创建 autogen.sh 脚本

#!/bin/bash
aclocal
autoheader
automake --add-missing
autoconf

2. 执行和测试

# 执行自动配置脚本生成 Makefile.am 文件
chmod +x autogen.sh
./autogen.sh

# 生成 Makefile 并编译
./configure --host=arm-linux
make

# 测试运行
sudo ./psplash

# 预期结果：屏幕显示 poky 官方默认 Logo

Logo 替换

方式一：简单替换

./make-image-header.sh psplash-poky.png POKY
make clean && make
sudo ./psplash

方式二：自定义文件名

./make-image-header.sh logo.png POKY

修改源码：

--- a/Makefile.am
+++ b/Makefile.am
@@ -5,7 +5,7 @@ AM_CFLAGS = $(GCC_FLAGS) $(EXTRA_GCC_FLAGS) -D_GNU_SOURCE -DFONT_HEADER=\"$(FONT
 psplash_SOURCES = psplash.c psplash.h psplash-fb.c psplash-fb.h \
                   psplash-console.c psplash-console.h           \
                  psplash-colors.h psplash-config.h             \
-                 psplash-poky-img.h psplash-bar-img.h $(FONT_NAME)-font.h
+                 logo-img.h psplash-bar-img.h $(FONT_NAME)-font.h
 BUILT_SOURCES = psplash-poky-img.h psplash-bar-img.h
--- a/psplash.c
+++ b/psplash.c
@@ -13,7 +13,8 @@
 #include "psplash.h"
 #include "psplash-config.h"
 #include "psplash-colors.h"
-#include "psplash-poky-img.h"
+//#include "psplash-poky-img.h"
+#include "logo-img.h"
 #include "psplash-bar-img.h"

重新编译：make clean && make

配置开机启动

1. 创建启动脚本 /etc/init.d/psplash.sh

#!/bin/sh
read CMDLINE < /proc/cmdline
for x in $CMDLINE; do
    case $x in
    psplash=false)
        echo "Boot splashscreen disabled"
        exit 0;
        ;;
    esac
done

export TMPDIR=/mnt/.psplash
mount tmpfs -t tmpfs $TMPDIR -o,size=40k

rotation=0
if [ -e /etc/rotation ]; then
    read rotation < /etc/rotation
fi

/usr/bin/psplash --angle $rotation &

2. 创建 /usr/lib/systemd/system/psplash.service 服务

[Unit]
Description=Psplash Boot Logo
DefaultDependencies=no

[Service]
ExecStart=/etc/init.d/psplash.sh
Restart=always
Type=simple

[Install]
WantedBy=multi-user.target

3. 部署并启用

sudo cp psplash /usr/bin/
sudo chmod 755 /usr/bin/psplash
sudo chmod 755 /etc/init.d/psplash.sh
sudo systemctl enable psplash.service
sudo reboot

其他定制

禁用进度条和启动信息

--- a/psplash-config.h
+++ b/psplash-config.h
@@ -13,7 +13,7 @@

 /* Text to output on program start; if undefined, output nothing */
 #ifndef PSPLASH_DISABLE_STARTUP_MSG
-#define PSPLASH_STARTUP_MSG ""
+//#define PSPLASH_STARTUP_MSG ""
 #endif

 /* Bool indicating if the image is fullscreen, as opposed to split screen */
@@ -23,7 +23,7 @@

 /* Bool indicated if the progress bar should be disabled */
 #ifndef PSPLASH_DISABLE_PROGRESS_BAR
-#define PSPLASH_SHOW_PROGRESS_BAR 1
+//#define PSPLASH_SHOW_PROGRESS_BAR 1
 #endif

 /* Position of the image split from top edge, numerator of fraction */
diff --git a/psplash.c b/psplash.c
index 261dd1c..b506c0f 100644

关闭内核缓冲日志

--- a/source/kernel/linux-5.4-h618/arch/arm64/configs/linux_h618_defconfig
+++ b/source/kernel/linux-5.4-h618/arch/arm64/configs/linux_h618_defconfig
@@ -449,6 +449,7 @@ CONFIG_INPUT_UINPUT=y
 CONFIG_INPUT_SENSOR=y
 CONFIG_SUNXI_GPADC=y
 # CONFIG_SERIO_SERPORT is not set
+CONFIG_VT_HW_CONSOLE_BINDING=y
 # CONFIG_LEGACY_PTYS is not set
 CONFIG_SERIAL_NONSTANDARD=y
 CONFIG_N_HDLC=m
@@ -540,9 +541,6 @@ CONFIG_HDMI2_CEC_USER=y
 CONFIG_TV_DISP2_SUNXI=y
 CONFIG_DISP2_SUNXI_DEBUG=y
 CONFIG_DISP2_SUNXI_COMPOSER=y
-CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
-CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER=y
 CONFIG_LOGO=y
 CONFIG_SUNXI_GPU_TYPE="mali-g31"
 CONFIG_SOUND=y

常见问题

Q: 编译报错 "command not found" ?

A: sudo apt install build-essential autoconf automake libtool -y

Q: 运行后屏幕无显示 ?

A: sudo ./psplash；检查：ls -l /dev/fb0

Q: 开机启动不生效 ?

A: sudo systemctl status psplash.service；sudo journalctl -u psplash.service

Q: Logo 显示异常 ?

A: 确保 PNG 格式，重新生成：./make-image-header.sh logo.png POKY