文章目录
前言
开发板集成了 wifi&bt 模块（AP6275S），测试该模块的 bluetooth 蓝牙功能。
原理图wifi&bt模块
软件平台：Ubuntu 20.04.4 LTS
硬件平台： NXP 公司的 i.MX6ULL
一、bluez5.47编译
编译之前需要交叉编译工具链，及环境配置，路径根据自己环境配置
#!/bin/sh
export PKG_CONFIG_PATH=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/pkgconfig:$PKG_CONFIG_PATH
export PATH=/home/cyzhangep/workspace/6ull_41/toolchain/gcc-linaro-4.9.4-2017.01-i686_arm-linux-gnueabihf/bin:$PATH
1.相关库编译
1.编译zlib
cd zlib-1.2.8
mkdir install_us
host=arm-linux prefix=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/zlib-1.2.8/install_us CC=arm-linux-gnueabihf-gcc ./configure --shared
make
make install
2.编译libffi
cd libffi-3.2.1
mkdir install_us
./configure --host=arm-linux --prefix=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/libffi-3.2.1/install_us CC=arm-linux-gnueabihf-gcc
make
make install
cd ..
3.编译glib
cd glib-2.45.3
mkdir install_us
echo ac_cv_type_long_long=yes>arm-linux.cache
echo glib_cv_stack_grows=no>>arm-linux.cache
echo glib_cv_uscore=no>>arm-linux.cache
echo ac_cv_func_posix_getpwuid_r=yes>>arm-linux.cache
echo ac_cv_func_posix_getgrgid_r=yes>>arm-linux.cache
./configure --host=arm-linux --prefix=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/glib-2.45.3/install_us CC=arm-linux-gnueabihf-gcc LIBFFI_CFLAGS="-I/home/cyzhangep/workspace/6ull_41/dbus_zzy1/libffi-3.2.1/install_us/lib/libffi-3.2.1/include" LIBFFI_LIBS="-lffi -L/home/cyzhangep/workspace/6ull_41/dbus_zzy1/libffi-3.2.1/install_us/lib" ZLIB_CFLAGS="-I/home/cyzhangep/workspace/6ull_41/dbus_zzy1/zlib-1.2.8/install_us/include" ZLIB_LIBS="-lz -L/home/cyzhangep/workspace/6ull_41/dbus_zzy1/zlib-1.2.8/install_us/lib" --cache-file=arm-linux.cache --disable-selinux --disable-xattr --disable-libelf --disable-fam
make
make install
cd ..
4.编译expat
cd expat-2.2.7
mkdir install_us
make clean
./configure --prefix=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/expat-2.2.7/install_us --host=arm-linux CC=arm-linux-gnueabihf-gcc --enable-shared
make
make install
cd ..
5.编译dbus
cd dbus-1.6.16
mkdir install_us
# echo ac_cv_have_abstract_sockets=yes>arm-linux.cache
./configure --prefix= --host=arm-linux CC=arm-linux-gnueabihf-gcc CXX=arm-linux-gnueabihf-g++ --with-xml=expat --without-x LDFLAGS="-L/home/cyzhangep/workspace/6ull_41/dbus_zzy1/expat-2.2.7/install_us/lib" CFLAGS="-fPIE -I/home/cyzhangep/workspace/6ull_41/dbus_zzy1/expat-2.2.7/install_us/include/" enable_selinux="no" --disable-tests #--cache-file=arm-linux.cache
make
make install DESTDIR=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/dbus-1.6.16/install_us
cd ..
6.编译ncurses
cd ncurses-5.9
mkdir install_us
export CPPFLAGS="-P"
./configure --prefix=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/ncurses-5.9/install_us --host=arm-linux CC=arm-linux-gnueabihf-gcc CXX=arm-linux-gnueabihf-g++ CFLAGS="-fPIC"
make
make install
unset CPPFLAGS
cd ..
7.编译readline
cd readline-6.0
mkdir install_us
make clean
./configure --host=arm-linux CC=arm-linux-gnueabihf-gcc --prefix=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/readline-6.0/install_us bash_cv_wcwidth_broken=yes CFLAGS="-fPIC" LDFLAGS="-L/home/cyzhangep/workspace/6ull_41/dbus_zzy1/ncurses-5.9/install_us/lib"
make SHLIB_LIBS=-lncurses
# make
make install
cd ..
ldconfig
8.编译libical
cd libical-0.43
mkdir install_us
./configure --prefix=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/libical-0.43/install_us --host=arm-linux CC=arm-linux-gnueabihf-gcc
make
make install
cd ..
9.编译bluez
mkdir pkgconfig
cp -r /home/cyzhangep/workspace/6ull_41/dbus_zzy1/dbus-1.6.16/install_us/lib/pkgconfig/dbus-1.pc ./pkgconfig
cp -r /home/cyzhangep/workspace/6ull_41/dbus_zzy1/expat-2.2.7/install_us/lib/pkgconfig/expat.pc ./pkgconfig
cp -r /home/cyzhangep/workspace/6ull_41/dbus_zzy1/glib-2.45.3/install_us/lib/pkgconfig/* ./pkgconfig
cp -r /home/cyzhangep/workspace/6ull_41/dbus_zzy1/libffi-3.2.1/install_us/lib/pkgconfig/libffi.pc ./pkgconfig
# cp -r /home/cyzhangep/workspace/6ull_41/dbus_zzy1/readline-8.0/install_us/lib/pkgconfig/readline.pc ./pkgconfig
cp -r /home/cyzhangep/workspace/6ull_41/dbus_zzy1/zlib-1.2.8/install_us/lib/pkgconfig/* ./pkgconfig
cp -r /home/cyzhangep/workspace/6ull_41/dbus_zzy1/libical-0.43/install_us/lib/pkgconfig/libical.pc ./pkgconfig
cd bluez-5.47
make clean
./configure --prefix= --sysconfdir=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/bluez-5.47/install_us/etc --localstatedir=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/bluez-5.47/install_us/var --enable-experimental --with-systemdsystemunitdir=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/bluez-5.47/install_us/ll_lib/systemd/system --with-systemduserunitdir=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/bluez-5.47/install_us/ll_usr/lib/systemd --enable-tools --enable-debug --enable-test --disable-udev --host=arm-linux CC=arm-linux-gnueabihf-gcc CFLAGS="-I/home/cyzhangep/workspace/6ull_41/dbus_zzy1/readline-6.0/install_us/include -I/home/cyzhangep/workspace/6ull_41/dbus_zzy1/dbus-1.6.16/install_us/include/dbus-1.0/ -I/home/cyzhangep/workspace/6ull_41/dbus_zzy1/libical-0.43/install_us/include/" LDFLAGS="-L/home/cyzhangep/workspace/6ull_41/dbus_zzy1/readline-6.0/install_us/lib -L/home/cyzhangep/workspace/6ull_41/dbus_zzy1/ncurses-5.9/install_us/lib -L/home/cyzhangep/workspace/6ull_41/dbus_zzy1/dbus-1.6.16/install_us/lib" --enable-library --enable-shared=yes --enable-network --enable-health --enable-cups --enable-threads --enable-pie --enable-deprecated --enable-client #--disable-client
make LIBS=-lncurses
make install DESTDIR=/home/cyzhangep/workspace/6ull_41/dbus_zzy1/bluez-5.47/install_us
编译结束，工具及库在相应的install_us目录下，拷贝到板卡
二、使用步骤
1.测试脚本
如下：
#!/bin/sh
echo "statr config bt......"
export PATH=/sbin/:$PATH
export DBUS_SESSION_BUS_ADDRESS=unix:path=/var/run/dbus/system_bus_socket
brcm_patchram_plus -d --enable_hci --no2bytes --tosleep 115200 --baudrate 115200 --patchram /lib/firmware/BCM4362A2_001.003.006.1100.1189.hcd --bd_addr 11:22:33:44:55:66 /dev/ttymxc2 &
groupadd -g 3065 messagebus -p x
useradd -d '/var/lib/dbus/' -g messagebus -s /bin/false messagebus -p x
groupadd lp -p x
useradd -d '/var/spool/lpd' -g lp -s /bin/sh lp -p x
dbus-uuidgen --ensure
dbus-daemon --system --print-pid --print-address
mkdir -p /home/
# eval dbus-launch --sh-syntax
export $(dbus-launch)
/libexec/bluetooth/bluetoothd -n -d &
2.bluetoothctl工具
bluetoothctl //打开 bluez 蓝牙工具
power on //启动蓝牙设备
pairable on //设置为配对模式
discoverable on //设置为可发现模式
agent on //启动代理
default-agent //设置当前代理为默认
//打开手机配对
参考：
https://blog.csdn.net/weixin_43982460/article/details/116014460
https://blog.csdn.net/gatieme/article/details/48751743
https://blog.csdn.net/lee_jimmy/article/details/96739656
总结
移植的过程中，遇到很多很多的问题，主要是搜索，请教同事，结束后将我的经验分享出来，互相学习，也当作记录。
移植过程遇到的错误
地址：https://download.csdn.net/download/joy_dsp/90277540
当时写了个bluez错误问题记录，里面有相关库下载路径，错误情况以及解决方法，没有整理比较乱建议，搜索查看。