[瑞芯微RV1126调试RTL8818FU WIFI模组支持STA和AP模式]

内核menuconfig配置

CONFIG_NETFILTER=y
CONFIG_NF_CONNTRACK=y
CONFIG_NF_TABLES=y
CONFIG_NF_TABLES_INET=y
CONFIG_NF_CONNTRACK_IPV4=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_NAT=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_BRIDGE=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_MANGLE=y
CONFIG_IP_NF_NAT=y
CONFIG_IP_NF_RAW=y
CONFIG_NETFILTER_XT_MATCH_STATE=y
CONFIG_WL_ROCKCHIP=y
CONFIG_WIFI_BUILD_MODULE=y
CONFIG_USB_XHCI_HCD=y
CONFIG_USB_XHCI_PLATFORM=y
CONFIG_USB_NET_RNDIS_WLAN=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PLATFORM=y
CONFIG_USB_CONFIGFS_RNDIS=y
CONFIG_USB_DWC3=y
CONFIG_USB_DWC3_OF_SIMPLE=y
CONFIG_USB_DWC3_ROCKCHIP_INNO=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_HCD_PLATFORM=y
CONFIG_USB_HID=y
CONFIG_USB=y
CONFIG_USB_USBNET=y
CONFIG_PHY_ROCKCHIP_NANENG_USB2=y
CONFIG_RFKILL=y
CONFIG_RFKILL_RK=y
CONFIG_CFG80211=y
CONFIG_CFG80211_WEXT=y

内核dts配置

	wireless_wlan: wireless-wlan {
		compatible = "wlan-platdata";
		rockchip,grf = <&grf>;
		/*
		clocks = <&rk809 1>;
		clock-names = "clk_wifi";
		
		*/
		pinctrl-names = "default";
		pinctrl-0 = <&wifi_init>;
		wifi_chip_type = "rtl8188fu";
		WIFI,poweren_gpio = <&gpio3 RK_PA5 GPIO_ACTIVE_LOW>; 
		/*WIFI,host_wake_irq = <&gpio0 RK_PB0 GPIO_ACTIVE_HIGH>; */
		status = "okay";
	};
	wireless-wlan {
		/omit-if-no-ref/
		wifi_wake_host: wifi-wake-host {
			rockchip,pins = <0 RK_PB0 0 &pcfg_pull_up>;
		};

		wifi_init: wifi-init {
			rockchip,pins = <3 RK_PA5 RK_FUNC_GPIO &pcfg_output_high>,//wifi_enable
			<0 RK_PB1 RK_FUNC_GPIO &pcfg_output_high>,//usb_hub_enable
			//usb-switch
			<3 RK_PC1 RK_FUNC_GPIO &pcfg_output_high>,
			<3 RK_PC2 RK_FUNC_GPIO &pcfg_output_low>;
		};
	};

文件系统配置和更改

删掉中间文件：
buildroot/output/rockchip_rv1126_rv1109_xxx/target/etc/init.d/S45connman
buildroot/output/rockchip_rv1126_rv1109_xxx/target/usr/bin/connmanctl
buildroot/output/rockchip_rv1126_rv1109_xxx/target/usr/sbin/connmand
app/netserver/main.c main函数直接return不执行

buildroot/output/rockchip_rv1126_rv1109/target/etc/init.d/S36load_rv1109_wifi_modules
//注释掉下面这两行
printf "load wifi modules: "
#insmod /system/lib/modules/"8188fu.ko"
#[ $? = 0 ] && echo "OK" || echo "FAIL"
#注etc/init.d/目录的文件在系统启动时会依次被调用，所以WiFi的驱动会被自动加载，这里我们注释掉它使用自己的wifi驱动

根目录external/下添加softapDemo.tgz.gz
main.c下
    main.c/static char softap_name[64] = "wlan0";
    main.c/wlan_accesspoint_start(apName, apPassword);
--- main.c/eth_accesspoint_start();
--- main.c/iftables_usb0_to_eth0(wan,lan);
package/rockchip/Config.in 添加：source "package/rockchip/softap/Config.in"

根目录
make menuconfig 
BR2_PACKAGE_RKWIFIBT_RTL8188FU =y
# 选择对应的WiFi型号 其实也可不选我们不用原厂wifi驱动
BR2_PACKAGE_IPC_DAEMON = n
BR2_PACKAGE_NETSERVER = n
BR2_PACKAGE_CONNMAN = n
BR2_PACKAGE_DHCPCD = y
BR2_PACKAGE_SOFTAP=y
make savedefconfig
make netserver-dirclean
make connman-dirclean
make ipc-daemon-dirclean
make softap-dirclean
make rkwifibt-dirclean 
#清除掉之前的
./build.sh rootfs 
#编译文件系统
注意：
编译好看看buildroot/output/rockchip_rv1126_rv1109/target/etc/init.d/S36load_rv1109_wifi_modules
有没被覆盖，覆盖掉的话需要重新注释

驱动编译

修改配置
SDK\extern\rtl8188FU_linux_v5.11.5-13-g2482755ff.20210615\Makefile

CROSS_COMPILE := arm-linux-gnueabihf-
KSRC := rockchip_new_20220628/kernel
RTL模组： 使用p2p0作为softap功能，通过内核驱动的配置生成p2p0，如果没有p2p0节点请检查这里的配
置
EXTRA_CFLAGS  = -DCONFIG_PLATFORM_ANDROID
CONFIG_PLATFORM_ARM_RK2818 = y
CONFIG_AP_MODE = y
CONFIG_POWER_SAVING = n
CONFIG_MP_INCLUDED = y

make clean && make;

wifi工具编译

libnl库编译

mkdir __install;
./configure CC=arm-linux-gnueabihf-gcc AR=arm-linux-gnueabihf-ar --prefix=$(pwd)/__install --host=arm-linux-gnueabihf;
make && make install;

openssl编译

mkdir __install;
./config no-asm no-shared --cross-compile-prefix=arm-linux-gnueabihf- --prefix=$(pwd)/__install 
去掉CFLAG参数中的 -m64 ，SHARED_LDFLAGS参数中的 -m64
make && make install

wpa_supplicant编译

cd SDK/extern/wifi_tool/wpa_supplicant_8_kk_4.4_rtw_r25669.20171213/wpa_supplicant;
cp defconfig .config;
#Makfefile中添加libnl和礼包ssl的路径
CC=arm-linux-gnueabihf-gcc
CFLAGS  = -I../../libnl-1.1.4/__install/include
CFLAGS  = -I../../openssl-1.0.2g/__install/include
LIBS  = -L../../libnl-1.1.4/__install/lib  -lnl -lm -lpthread
LIBS  = -L../../openssl-1.0.2g/__install/lib -lssl -lcrypto -ldl
#编译
make clean && make; #生成wpa_supplicant和wpa_cli
arm-linux-gnueabihf-strip wpa_cli
arm-linux-gnueabihf-strip wpa_supplicant

hostapd编译(不过我没用到，调不通，用的是rk自带的)

cd SDK/extern/wifi_tool/wpa_supplicant_8_kk_4.4_rtw_r25669.20171213/hostapd;
cp defconfig .config;
#Makfefile中添加libnl和礼包ssl的路径
CC=arm-linux-gnueabihf-gcc
CFLAGS  = -I../../libnl-1.1.4/__install/include
CFLAGS  = -I../../openssl-1.0.2g/__install/include
LIBS  = -L../../libnl-1.1.4/__install/lib  -lnl -pthread
LIBS  = -L../../openssl-1.0.2g/__install/lib -lssl -lcrypto -ldl
#编译
make clean &&& make;

开机运行脚本测试WIFI—STA模式

开机后可以用lsusb命令看看是否有wifi节点(ID为下图：即为wifi模块)

运行脚本
./wifi_test.sh

cd /mnt/wifi_lib
echo host > /sys/devices/platform/ff4c0000.usb2-phy/otg_mode
#使能usb为Host模式，这个建议放到/etc/ini.d/rcS里面开机执行一次就好
killall softapDemo&&killall hostapd && killall udhcpd
rmmod wlan
sleep 1
insmod wlan.ko
#加载后可以用iwlist wlan0 scan命令验证一下能不能搜索到热点
export LD_LIBRARY_PATH=/mnt/wifi_lib/nl_lib:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/mnt/wifi_lib/lib:$LD_LIBRARY_PATH
ifconfig wlan0 up
./wpa_supplicant -B -iwlan0 -c  wpa_supplicant.conf -Dnl80211
./wpa_cli -i wlan0 status
route del default;route del 255.255.255.255
udhcpc -iwlan0 -q& 
route add -net 255.255.255.255 netmask 255.255.255.255 dev wlan0

然后板子就可以通过wifi ping外网了

运行脚本测试WIFI-AP模式

./hostapd.sh

killall wpa_supplicant
sleep 2
ifconfig wlan0 0.0.0.0
ifconfig wlan0 down
killall hostapd && killall udhcpd
softapDemo

然后可以用笔记本尝试连接热点ping板子wlan0 ip是否能通

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