mx6 CSR8670驱动移植基于linux3.14.58

1. 设备树配置：

UART2

BT_WAKE_DEV gpio2-15 //

BT_HOST_WAKE gpio2-13 //INPUT 主控唤醒可不用先


//our bt
pinctrl_blueth: bluethgrp {fsl,pins = <MX6UL_PAD_UART2_RTS_B__UART2_DCE_RTS    0x1b0b1MX6UL_PAD_UART2_CTS_B__UART2_DCE_CTS    0x1b0b1/*MX6UL_PAD_ENET2_TX_EN__GPIO2_IO13        0x17059 input     BT_HOST_WAKE*/MX6UL_PAD_ENET2_TX_EN__GPIO2_IO13  gpio =  32+13 =45MX6UL_PAD_ENET2_RX_ER__GPIO2_IO15        0x17059    /* BT_WAKE_DEV output  gpio  = 32 +15 =47*/MX6UL_PAD_ENET2_RX_DATA1__GPIO2_IO09    0x17059    /*rst  output gpio = 32+9 = 41*/>;};
&flexcan2 {status = "disabled";
};&uart2 {fsl,uart-has-rtscts;
};
&iomuxc {pinctrl-0 = <&pinctrl_hog_1 &pinctrl_wifi &pinctrl_blueth>;
};

对应驱动位置的Kconfig添加如下

config BT_RTKBTUSB
tristate "RTK HCI USB driver"
depends on USB
help
RTK Bluetooth HCI USB driver

对应位置的Makefile添加如下


obj-$(CONFIG_BT_RTKBTUSB)+= rtk_btusb.o

arm-linux-gnueabihf-gcc 问题

arm-linux-gnueabihf-gcc -O3  -D_LARGEFILE64_SOURCE=1 -DHAVE_HIDDEN -I. -c -o example.o test/example.carm-linux-gnueabihf-gcc: error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory
make: *** [example.o] Error 127

解决方法

关于缺少libstdc++.so.6问题

$ sudo apt-get install libc6-i386

$ sudo apt-get install libstdc++6

$ sudo apt-get install lib32stdc++6

编译zlib

./configure --prefix=/opt/arm/bluez

vi Makefile CC=arm-linux-gnueabihf-gcc LDSHARED=arm-linux-gnueabihf-gcc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map CPP=arm-linux-gnueabihf-gcc -E AR=arm-linux-gnueabihf-ar RANLIB=arm-linux-gnueabihf-ranlib

make make install

编译libffi-3.0.13

./configure --host=arm-linux-gnueabihf --prefix=/opt/arm/bluez PKG_CONFIG_PATH=/opt/arm/bluez/lib/pkgconfig CC="arm-linux-gnueabihf-gcc -L/opt/arm/bluez/lib -I/opt/arm/bluez/lib/include"

编译glib

./configure --host=arm-linux-gnueabihf --prefix=/opt/arm/bluez/ PKG_CONFIG_PATH=/opt/arm/bluez/lib/pkgconfig glib_cv_stack_grows=no glib_cv_uscore=yes ac_cv_func_posix_getpwuid_r=yes ac_cv_func_posix_getgrgid_r=yes make make install

编译expat-2.1.0

./configure --host=arm-linux-gnueabihf --prefix=/opt/arm/bluez/ make make install

编译D-Bus1.9.4

./configure --host=arm-linux-gnueabihf --prefix=/opt/arm/bluez/ --disable-tests./configure --host=arm-linux-gnueabihf --prefix=/opt/arm/bluez/ --disable-tests make make install

编译libical-1.0

sudo apt-get install cmake sudo apt-get install g++-arm-linux-gnueabi

export CC=arm-linux-gnueabihf-gcc export CXX=arm-linux-gnueabihf-g++//arm-linux-gnueabi-g++ cmake -DCMAKE_INSTALL_PREFIX=/opt/arm/bluez make make install

编译ncurses-5.9

./configure --host=arm-linux-gnueabihf --prefix=/opt/arm/bluez/ CXX="arm-linux-gnueabihf-g++"

make make install

编译Readline6.3

./configure --host=arm-linux-gnueabihf --prefix=/opt/arm/bluez/ bash_cv_wcwidth_broken=yes CFLAGS+=-fPIC

vi Makefile CFLAG = -fPIC -g -o make SHLIB_LIBS=-lncurses //必须使用此后缀 make install

编译bluz

./configure --host=arm-linux-gnueabihf --prefix=/opt/arm/bluez/ PKG_CONFIG_PATH=/opt/arm/bluez/lib/pkgconfig CC="arm-linux-gnueabihf-gcc -L/opt/arm/bluez/lib -I/opt/arm/bluez/include" --disable-systemd --disable-udev --disable-cups --disable-obex --enable-library LDFLAGS="-lncurses"

报错

/opt/arm/bluez/lib/libreadline.so: undefined reference to `PC'

解决方法

-L/opt/arm/bluez/lib -lglib-2.0   -lreadline -lncurses

下添加 -l编译选项

在 client_bluetoothctl_LDADD 等XXX_LDADD变量中添加-lncurses(readline 依赖于ncurses) 凡需要 -lreadline 的在client_bluetoothctl_LDADD 等XXX_LDADD变量中面添加如下(注意顺序顺序变化可能编译不通过)

 -L/opt/arm/bluez/lib -lglib-2.0   -lreadline -lncurses

比如：

client_bluetoothctl_LDADD = gdbus/libgdbus-internal.la -L/opt/arm/bluez/lib -lglib-2.0   -L/opt/arm/bluez/lib -ldbus-1   \-lreadline -lncursesattrib_gatttool_LDADD = lib/libbluetooth-internal.la \src/libshared-glib.la -L/opt/arm/bluez/lib -lglib-2.0   -lreadline -L/opt/arm/bluez/lib -ldbus-1   \-lreadline -lncursestools_obex_client_tool_LDADD = lib/libbluetooth-internal.la \-L/opt/arm/bluez/lib -lglib-2.0   -lreadline -lncurses

在hciattach 中添加 rtk_h5选项

make make install DESTDIR=/opt/arm/bluez

添加 bluez-5.25\tools\hciattach_rtk.c

修改:bluez-5.25\tools\hciattach.h

修改:bluez-5.25\tools\hciattach.c

修改:Makefile.tools hciattach_rtk 修改:Makefile.in hciattach_rtk 添加 (同文件下参看其他设置) \bluez-5.25\tools.deps\hciattach_rtk.Po file *

参考https://github.com/22ktv/bluez-hcitools

strip 执行文件

命令 file * 查看文件属性 arm-linux-gnueabi-strip *

移植到开发板

/opt/arm/bluez/opt/arm/bluez/ 为安装环境

将/opt/arm/bluez/opt/arm/bluez/usr/下的文件复制到开发板的/sbin下 (ROOTFS自己指定)

$cp /opt/arm/bluez/opt/arm/bluez/usr/* ROOTFS/sbin

$cp /opt/arm/bluez/opt/arm/bluez/usr/hcitool ROOTFS/bin/

$cp /opt/arm/bluez/opt/arm/bluez/usr/rfcomm ROOTFS/bin/

$cp /opt/arm/bluez/opt/arm/bluez/usr/sdptool ROOTFS/bin/

复制相关的库到开发板的/lib下,不要复制链接文件可以修改 #cp cp /opt/arm/bluez/opt/arm/bluez/lib/libbluetooth* ROOTFS/lib 复制配置文件到开发板的/etc目录下 #cp -arf /opt/arm/bluez/opt/arm/bluez/etc/bluetooth/ ROOTFS/etc/

链接蓝牙脚本

#!/bin/sh

echo 47 > /sys/class/gpio/export # BT_WAKE echo 41 > /sys/class/gpio/export # BT_RST_N

echo out > /sys/class/gpio/gpio47/direction echo out > /sys/class/gpio/gpio41/direction

echo 0 > /sys/class/gpio/gpio47/value echo 0 > /sys/class/gpio/gpio41/value usleep 500000

echo 1 > /sys/class/gpio/gpio47/value echo 1 > /sys/class/gpio/gpio41/value usleep 500000

echo 47 > /sys/class/gpio/unexport echo 41 > /sys/class/gpio/unexport usleep 500000

#brcm --enable_hci --no2bytes --tosleep 200000 --baudrate 3000000
#--patchram /lib/firmware/bcm20710a1.hcd /dev/ttymxc1 2> /tmp/brcm_log &

hciattach -n -s 115200 /dev/ttymxc1 rtk_h5 & usleep 500000

注意rts cts rx tx 正反