Jetbot WiFi Module 调试过程

硬件： Jetson Nano
接口： USB
软件： Ubuntu18.04（Kernel 4.9）
WIFI: TTIT-1021XP5 Spec （USB Interface 2T2R 5G-High Power wifi mdulel）
！！！未解决死机重启问题，暂不可用！！！

image.png

1. 插入USB WIFI 模块后，查询USB 模块信息以及是否识别

lsusb 
Bus 001 Device 005: ID 0cf3:1022 Atheros Communications, Inc. 

2. cfg80211.c 和 wmi.c 编译报错， 类型不匹配（size_t ---32位系统下为4字节，64系统下是8字节 和 int在32位和64位系统均为4字节），从而导致编译报错。

解决：
void ath6kl_p2p_ps_user_app_ie(struct p2p_ps_info *p2p_ps, u8 mgmt_frm_type, u8 **ie, int *len);
改为
void ath6kl_p2p_ps_user_app_ie(struct p2p_ps_info *p2p_ps, u8 mgmt_frm_type, u8 **ie, size_t *len);

make ARCH=arm64 CROSS_COMPILE=/usr/bin/aarch64-linux-gnu- -C /lib/modules/4.9.140-tegra/build SUBDIRS=/home/jetbot/ws_dennis/WLAN-AIO/WLAN-AIO-BP/build/../drivers/ath6kl KBUILD_EXTRA_SYMBOLS=/Module.symvers modules  
make[2]: Entering directory '/usr/src/linux-headers-4.9.140-tegra-ubuntu18.04_aarch64/kernel-4.9'
  LD      /home/jetbot/ws_dennis/WLAN-AIO/WLAN-AIO-BP/build/../drivers/ath6kl/built-in.o
  CC [M]  /home/jetbot/ws_dennis/WLAN-AIO/WLAN-AIO-BP/build/../drivers/ath6kl/debug.o
  CC [M]  /home/jetbot/ws_dennis/WLAN-AIO/WLAN-AIO-BP/build/../drivers/ath6kl/htc_pipe.o
  CC [M]  /home/jetbot/ws_dennis/WLAN-AIO/WLAN-AIO-BP/build/../drivers/ath6kl/bmi.o
  CC [M]  /home/jetbot/ws_dennis/WLAN-AIO/WLAN-AIO-BP/build/../drivers/ath6kl/cfg80211.o
/home/jetbot/ws_dennis/WLAN-AIO/WLAN-AIO-BP/build/../drivers/ath6kl/cfg80211.c: In function ‘ath6kl_ap_beacon’:
/home/jetbot/ws_dennis/WLAN-AIO/WLAN-AIO-BP/build/../drivers/ath6kl/cfg80211.c:5473:8: error: passing argument 4 of ‘ath6kl_p2p_ps_user_app_ie’ from incompatible pointer type [-Werror=incompatible-pointer-types]
        &beacon_ies_len);
        ^
In file included from /home/jetbot/ws_dennis/WLAN-AIO/WLAN-AIO-BP/build/../drivers/ath6kl/core.h:59:0,
                 from /home/jetbot/ws_dennis/WLAN-AIO/WLAN-AIO-BP/build/../drivers/ath6kl/cfg80211.c:25:
/home/jetbot/ws_dennis/WLAN-AIO/WLAN-AIO-BP/build/../drivers/ath6kl/p2p.h:293:6: note: expected ‘int *’ but argument is of type ‘size_t * {aka long unsigned int *}’
 void ath6kl_p2p_ps_user_app_ie(struct p2p_ps_info *p2p_ps, u8 mgmt_frm_type,
      ^~~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
scripts/Makefile.build:335: recipe for target '/home/jetbot/ws_dennis/WLAN-AIO/WLAN-AIO-BP/build/../drivers/ath6kl/cfg80211.o' failed

../src/drivers/driver_nl80211.c:20:10: fatal error: netlink/genl/genl.h: No such file or directory
 #include <netlink/genl/genl.h>
          ^~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Makefile:1516: recipe for target '../src/drivers/driver_nl80211.o' failed

3. Insmod driver KO 报错

jetbot@jetbot:~/ws_dennis/aio_usb_wlan_bsp4.9/rootfs.arm64.build$ sudo insmod lib/modules/ath6kl_usb.ko
insmod: ERROR: could not insert module lib/modules/ath6kl_usb.ko: Unknown symbol in module

解决：
sudo modprobe cfg80211

[ 3908.892779] ath6kl_usb: Unknown symbol cfg80211_inform_bss_frame_data (err 0)
[ 3908.899937] ath6kl_usb: Unknown symbol cfg80211_sched_scan_results (err 0)
[ 3908.906909] ath6kl_usb: Unknown symbol cfg80211_scan_done (err 0)
[ 3908.913064] ath6kl_usb: Unknown symbol cfg80211_remain_on_channel_expired (err 0)
[ 3908.920656] ath6kl_usb: Unknown symbol regulatory_hint (err 0)
[ 3908.926527] ath6kl_usb: Unknown symbol cfg80211_roamed_bss (err 0)
[ 3908.932927] ath6kl_usb: Unknown symbol cfg80211_find_ie_match (err 0)
[ 3908.939391] ath6kl_usb: Unknown symbol cfg80211_new_sta (err 0)
[ 3908.945340] ath6kl_usb: Unknown symbol cfg80211_disconnected (err 0)
[ 3908.951773] ath6kl_usb: Unknown symbol wiphy_new_nm (err 0)
[ 3908.957359] ath6kl_usb: Unknown symbol cfg80211_connect_bss (err 0)
[ 3908.963642] ath6kl_usb: Unknown symbol cfg80211_ready_on_channel (err 0)
[ 3908.970395] ath6kl_usb: Unknown symbol wiphy_register (err 0)
[ 3908.976174] ath6kl_usb: Unknown symbol cfg80211_put_bss (err 0)
[ 3908.982106] ath6kl_usb: Unknown symbol cfg80211_ch_switch_notify (err 0)
[ 3908.988871] ath6kl_usb: Unknown symbol cfg80211_gtk_rekey_notify (err 0)
[ 3908.995612] ath6kl_usb: Unknown symbol cfg80211_ibss_joined (err 0)
[ 3909.001930] ath6kl_usb: Unknown symbol cfg80211_michael_mic_failure (err 0)
[ 3909.008929] ath6kl_usb: Unknown symbol cfg80211_del_sta_sinfo (err 0)
[ 3909.015385] ath6kl_usb: Unknown symbol wiphy_unregister (err 0)
[ 3909.021353] ath6kl_usb: Unknown symbol cfg80211_get_bss (err 0)
[ 3909.027296] ath6kl_usb: Unknown symbol __ieee80211_get_channel (err 0)
[ 3909.033855] ath6kl_usb: Unknown symbol cfg80211_pmksa_candidate_notify (err 0)
[ 3909.041321] ath6kl_usb: Unknown symbol cfg80211_mgmt_tx_status (err 0)
[ 3909.047911] ath6kl_usb: Unknown symbol cfg80211_rx_mgmt (err 0)
[ 3909.053873] ath6kl_usb: Unknown symbol cfg80211_chandef_create (err 0)
[ 3909.060419] ath6kl_usb: Unknown symbol cfg80211_inform_bss_data (err 0)
[ 3909.067055] ath6kl_usb: Unknown symbol ieee80211_frequency_to_channel (err 0)
[ 3909.074224] ath6kl_usb: Unknown symbol wiphy_free (err 0)

4. 动态加载ath6kl_usb.ko 成功，但系统卡死，无响应，必须关机或等待2分钟左右，系统自动重启（Watchdog）
   sudo insmod lib/modules/ath6kl_usb.ko
   未解决

[  145.704177] ath6kl: 3VAP/1, P2P enable, concurrent on , with dedicate p2p-device, multi-channel-concurrent enable, p2p-compat disable, sta-p2p-ie removed, p2p_wise_scan enable
[  145.705591] ath6kl: target bootstrap: 0x00000810
[  145.705616] ath6kl: Get firmware ath6k/AR6004/hw3.0/bdata.bin !!
[  145.705620] ath6kl: ath6kl: Get firmware ath6k/AR6004/hw3.0/softmac.bin fail!!
[  145.705624] ath6kl: Get firmware ath6k/AR6004/hw3.0/fw.ram.bin !!
[  145.705627] ath6kl: target's subtype is 0x3, HT20-only 2SS Dual-band
[  145.706560] ath6kl: wmi is not ready
[  145.708030] ath6kl: wmi is not ready
[  145.709380] ath6kl: Create HTC cookie, type 1 num 1640, loc 0 0
[  145.709397] ath6kl: Create HTC cookie, type 2 num 66, loc 0 0
[  145.709403] ath6kl: RX aggregation drop disabled
[  145.709406] ath6kl: Using driver's regdb.
[  145.784929] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  145.785155] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  145.785163] ath6kl: wmi is not ready
[  145.785887] ath6kl: wmi is not ready
[  145.801584] ath6kl: wmi is not ready
[  145.801646] ath6kl: wmi is not ready
[  145.801940] ath6kl: wmi is not ready
[  145.801994] ath6kl: wmi is not ready
[  145.802331] ath6kl: wmi is not ready
[  145.802380] ath6kl: wmi is not ready
[  145.802418] ath6kl: wmi is not ready
[  145.802454] ath6kl: wmi is not ready
[  145.802490] ath6kl: wmi is not ready
[  145.802524] ath6kl: wmi is not ready
[  145.802557] ath6kl: wmi is not ready
[  145.802591] ath6kl: wmi is not ready
[  145.802627] ath6kl: wmi is not ready
[  145.802662] ath6kl: wmi is not ready
[  145.802697] ath6kl: wmi is not ready
[  145.802731] ath6kl: wmi is not ready
[  145.802766] ath6kl: wmi is not ready
[  145.802802] ath6kl: wmi is not ready
[  145.802837] ath6kl: wmi is not ready
[  145.802872] ath6kl: wmi is not ready
[  145.802905] ath6kl: wmi is not ready
[  145.802939] ath6kl: wmi is not ready
[  145.803335] ath6kl: wmi is not ready
[  145.828838] ath6kl: wmi is not ready
[  145.862412] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  145.864027] ath6kl: wmi is not ready
[  145.972902] ath6kl: MAC ADDRESS 38:e2:6e:0c:04:26
[  145.972979] ath6kl: ar6004 hw 3.0 usb fw 5.1.0.38
[  145.979951] usbcore: registered new interface driver ath6kl_usb
[  145.980200] ath6kl: Create dedicated p2p interface
[  146.043085] IPv6: ADDRCONF(NETDEV_UP): p2p0: link is not ready
[  146.043303] IPv6: ADDRCONF(NETDEV_UP): p2p0: link is not ready
[  146.099709] IPv6: ADDRCONF(NETDEV_UP): p2p0: link is not ready