全志V3s学习记录--ESP8089的使用

总结：主线Linux目前没有可用的解决方法，就算加载成功并连接成功后，过一段时间也会奔溃，目前无解，需要避开这个大坑！！！

一、构建一些Networking相关的工具

• wpa_supplicant：
• hostapd：
• dhcpc：
  buildroot构建文件系统：
  

wpa_supplicant 需要 Openssl 支持

> Target packages 
	----> Libraries 
		----> Crypto
			----> [*] openssl
			----> [*] openssl binary
			----> [*] openssl additional engines   

二、STA模式–连接WiFi

如上：WiFi模块的复位引脚是PB4，GPIO就是43

2.1 加载模块

insmod /lib/modules/esp8089.ko config=crystal_26M_en=1 esp_reset_gpio=43

# insmod /lib/modules/esp8089.ko config=crystal_26M_en=1 esp_reset_gpio=43
[   47.055824] esp8089: unknown parameter 'config' ignored
[   47.061635]
[   47.061635] ***** EAGLE DRIVER VER:bdf5087c3deb*****
[   47.061635]
[   47.069704] ESP8089 reset via GPIO 43
[   47.289314] esp_sdio_dummy_probe enter
[   47.509006] esp_sdio_init power up OK
[   47.976313] esp_host:bdf5087c3deb
[   47.976313] esp_target: e826c2b3c9fd 57 18202
[   47.976313]
[   47.985659] esp_readwrite_file: file /system/lib/modules/test_results filp_open error
[   47.994634] first normal exit
[   47.997870] esp_sdio_remove enter
[   48.002734] sif_disable_irq release irq failed
[   48.119286] eagle_sdio: probe of mmc1:0001:1 failed with error -110
# [ 48.169593] mmc1: card 0001 removed
[   48.223706] mmc1: queuing unknown CIS tuple 0x01 (3 bytes)
[   48.236381] mmc1: queuing unknown CIS tuple 0x1a (5 bytes)
[   48.245281] mmc1: queuing unknown CIS tuple 0x1b (8 bytes)
[   48.252668] mmc1: queuing unknown CIS tuple 0x80 (1 bytes)
[   48.258200] mmc1: queuing unknown CIS tuple 0x81 (1 bytes)
[   48.264257] mmc1: queuing unknown CIS tuple 0x82 (1 bytes)
[   48.269900] mmc1: new high speed SDIO card at address 0001
[   48.633821] esp_host:bdf5087c3deb
[   48.633821] esp_target: e826c2b3c9fd 57 18202
[   48.633821]
[   48.723697] esp_op_add_interface STA

2.2 打开wlan0

# ifconfig wlan0 up
# ifconfig
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:64 errors:0 dropped:0 overruns:0 frame:0
          TX packets:64 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:4736 (4.6 KiB)  TX bytes:4736 (4.6 KiB)

wlan0     Link encap:Ethernet  HWaddr AC:D0:74:C1:26:99
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

2.3 连接WiFi（wpa_supplicant）

第一步：编辑vi /etc/network/interfaces文件

# Configure Loopback
auto lo
iface lo inet loopback
# wlan0
auto wlan0
iface wlan0 inet dhcp

 wpa_supplicant连接WIFI的时候会从配置文件中读取账号和密码，以及加密方式等， 所以我们再运行wpa_supplicant工具的时候要提前写好配置文件。

第二步：编辑配置文件：vi /etc/wpa_supplicant.conf

ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=0
ap_scan=1
network={
    
    ssid="liefyuan"
    scan_ssid=1
    key_mgmt=WPA-EAP WPA-PSK IEEE8021X NONE
    pairwise=TKIP CCMP
    group=CCMP TKIP WEP104 WEP40
    psk="1234567890"
    priority=5
}

第三步：创建一个socket通信的目录

mkdir -p /var/run/wpa_supplicant

第四步：运行命令连接WiFi

# wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf
Successfully initialized wpa_supplicant
rfkill: Cannot open RFKILL control device

第五步：配置DHCP，获取IP地址

# udhcpc -i wlan0
udhcpc: started, v1.31.1
udhcpc: sending discover
udhcpc: sending select for 192.168.1.109
udhcpc: lease of 192.168.1.109 obtained, lease time 7200
deleting routers
adding dns 202.96.134.33
adding dns 202.96.128.68

第六步：检查网络状况

# wpa_cli -iwlan0 status
bssid=c8:e7:d8:34:27:84
freq=2437
ssid=MERCURY_2784
id=0
mode=station
wifi_generation=4
pairwise_cipher=CCMP
group_cipher=CCMP
key_mgmt=WPA2-PSK
wpa_state=COMPLETED
ip_address=192.168.1.109
p2p_device_address=ac:d0:74:c1:26:99
address=ac:d0:74:c1:26:99
uuid=29899bfe-dde5-5afd-9f9f-0797878b0d93

第七步：ping功能测试

# ping www.baidu.com
PING www.baidu.com (14.215.177.39): 56 data bytes
64 bytes from 14.215.177.39: seq=0 ttl=56 time=28.294 ms
64 bytes from 14.215.177.39: seq=1 ttl=56 time=19.842 ms
64 bytes from 14.215.177.39: seq=2 ttl=56 time=16.529 ms
64 bytes from 14.215.177.39: seq=3 ttl=56 time=19.067 ms
64 bytes from 14.215.177.39: seq=4 ttl=56 time=31.391 ms
64 bytes from 14.215.177.39: seq=5 ttl=56 time=15.985 ms
64 bytes from 14.215.177.39: seq=6 ttl=56 time=15.033 ms
64 bytes from 14.215.177.39: seq=7 ttl=56 time=16.011 ms
64 bytes from 14.215.177.39: seq=8 ttl=56 time=14.188 ms
64 bytes from 14.215.177.39: seq=9 ttl=56 time=15.148 ms
64 bytes from 14.215.177.39: seq=10 ttl=56 time=15.779 ms
64 bytes from 14.215.177.39: seq=11 ttl=56 time=13.834 ms
64 bytes from 14.215.177.39: seq=12 ttl=56 time=12.730 ms
64 bytes from 14.215.177.39: seq=13 ttl=56 time=16.115 ms
64 bytes from 14.215.177.39: seq=14 ttl=56 time=9.792 ms
64 bytes from 14.215.177.39: seq=15 ttl=56 time=12.465 ms
^C
--- www.baidu.com ping statistics ---
16 packets transmitted, 16 packets received, 0% packet loss
round-trip min/avg/max = 9.792/17.012/31.391 ms

如果复位了：https://whycan.com/t_4326.html

十多分钟后还是崩溃了！无语了！

[  412.649394] esp_sdio_remove enter
[  412.653926] sif_disable_irq release irq failed
[  412.658381] ------------[ cut here ]------------
[  412.663119] WARNING: CPU: 0 PID: 72 at kernel/workqueue.c:3031 __flush_work+0x184/0x1ac
[  412.671150] Modules linked in: esp8089
[  412.674910] CPU: 0 PID: 72 Comm: kworker/0:2 Not tainted 5.2.0-licheepi-zero #3
[  412.682206] Hardware name: Allwinner sun8i Family
[  412.686917] Workqueue: events_freezable mmc_rescan
[  412.691728] [<c010ec34>] (unwind_backtrace) from [<c010b6cc>] (show_stack+0x10/0x14)
[  412.699473] [<c010b6cc>] (show_stack) from [<c0715720>] (dump_stack+0x94/0xa8)
[  412.706693] [<c0715720>] (dump_stack) from [<c011d984>] (__warn+0xfc/0x114)
[  412.713649] [<c011d984>] (__warn) from [<c011dab0>] (warn_slowpath_null+0x40/0x48)
[  412.721212] [<c011dab0>] (warn_slowpath_null) from [<c0133eec>] (__flush_work+0x184/0x1ac)
[  412.729472] [<c0133eec>] (__flush_work) from [<c0136fc8>] (__cancel_work_timer+0x110/0x1ec)
[  412.737850] [<c0136fc8>] (__cancel_work_timer) from [<bf004168>] (sip_detach+0xe8/0x1bc [esp8089])
[  412.746827] [<bf004168>] (sip_detach [esp8089]) from [<bf000fe0>] (esp_sdio_remove+0x60/0x1ac [esp8089])
[  412.756316] [<bf000fe0>] (esp_sdio_remove [esp8089]) from [<c0539780>] (sdio_bus_remove+0x30/0xf8)
[  412.765274] [<c0539780>] (sdio_bus_remove) from [<c04330b4>] (device_release_driver_internal+0xdc/0x1a0)
[  412.774748] [<c04330b4>] (device_release_driver_internal) from [<c0431bec>] (bus_remove_device+0xcc/0xf8)
[  412.784308] [<c0431bec>] (bus_remove_device) from [<c042e2a0>] (device_del+0x13c/0x324)
[  412.792308] [<c042e2a0>] (device_del) from [<c0539c08>] (sdio_remove_func+0x1c/0x28)
[  412.800045] [<c0539c08>] (sdio_remove_func) from [<c0537a34>] (mmc_sdio_remove+0x40/0x70)
[  412.808216] [<c0537a34>] (mmc_sdio_remove) from [<c0537c44>] (mmc_sdio_detect+0x6c/0xf8)
[  412.816299] [<c0537c44>] (mmc_sdio_detect) from [<c052fe30>] (mmc_rescan+0x1bc/0x38c)
[  412.824124] [<c052fe30>] (mmc_rescan) from [<c0135e64>] (process_one_work+0x150/0x358)
[  412.832034] [<c0135e64>] (process_one_work) from [<c0136098>] (worker_thread+0x2c/0x518)
[  412.840121] [<c0136098>] (worker_thread) from [<c013b854>] (kthread+0x120/0x150)
[  412.847513] [<c013b854>] (kthread) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
[  412.854723] Exception stack(0xc3ba5fb0 to 0xc3ba5ff8)
[  412.859770] 5fa0:                                     00000000 00000000 00000000 00000000
[  412.867937] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  412.876103] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[  412.882795] ---[ end trace 3facca9bc593b142 ]---
[  412.887457] wlan0: deauthenticating from c8:e7:d8:34:27:84 by local choice (Reason: 3=DEAUTH_LEAVING)
[  412.990409] mmc1: card 0001 removed
[  413.047521] sdio_read_cis: 2 callbacks suppressed
[  413.047534] mmc1: queuing unknown CIS tuple 0x01 (3 bytes)
[  413.071318] mmc1: queuing unknown CIS tuple 0x1a (5 bytes)
[  413.084716] mmc1: queuing unknown CIS tuple 0x1b (8 bytes)
[  413.095915] mmc1: queuing unknown CIS tuple 0x80 (1 bytes)
[  413.110722] mmc1: queuing unknown CIS tuple 0x81 (1 bytes)
[  413.119887] mmc1: queuing unknown CIS tuple 0x82 (1 bytes)
[  413.132454] mmc1: new high speed SDIO card at address 0001
[  413.152429] 8<--- cut here ---
[  413.155554] Unable to handle kernel NULL pointer dereference at virtual address 00000004
[  413.163791] pgd = 7a215147
[  413.166501] [00000004] *pgd=00000000
[  413.170112] Internal error: Oops: 17 [#1] SMP ARM
[  413.174810] Modules linked in: esp8089
[  413.178565] CPU: 0 PID: 72 Comm: kworker/0:2 Tainted: G        W         5.2.0-licheepi-zero #3
[  413.187247] Hardware name: Allwinner sun8i Family
[  413.191961] Workqueue: events_freezable mmc_rescan
[  413.196783] PC is at esp_sdio_probe+0x48/0x3e4 [esp8089]
[  413.202094] LR is at sdio_bus_probe+0xfc/0x114
[  413.206531] pc : [<bf001174>]    lr : [<c0539944>]    psr: 20070013
[  413.212787] sp : c3ba5d98  ip : 29aaaaab  fp : c0b04c48
[  413.218003] r10: 0000000e  r9 : bf00a188  r8 : bf00a188
[  413.223220] r7 : c3356200  r6 : bf00d080  r5 : bf039784  r4 : 00000000
[  413.229736] r3 : c3356208  r2 : 00000003  r1 : 00000000  r0 : c3356200
[  413.236255] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[  413.243379] Control: 10c5387d  Table: 4335c06a  DAC: 00000051
[  413.249118] Process kworker/0:2 (pid: 72, stack limit = 0x2bb573d3)
[  413.255377] Stack: (0xc3ba5d98 to 0xc3ba6000)
[  413.259731] 5d80:                                                       bf00d0e8 0000000e
[  413.267899] 5da0: c0b04c48 c3356208 00000000 c3356200 bf00d0e8 bf00a188 bf00d0e8 c0539944
[  413.276067] 5dc0: c0b838c8 c3356208 00000000 c0b838cc 00000001 c04329b4 c3356208 bf00d0e8
[  413.284235] 5de0: c0432e1c c0b04c48 00000001 00000000 00000001 c0432c34 c0b41240 00000000
[  413.292402] 5e00: 00000000 c0b87250 bf00d0e8 c3ba5e64 c3356208 00000000 c3ba5e64 c0432e1c
[  413.300570] 5e20: c0b04c48 00000001 00000000 00000001 c0b04c48 c0430cc8 00000001 c39a0c6c
[  413.308738] 5e40: c31dd9b8 3e4fcf47 c3356208 c3356208 c0b04c48 c335624c c3299008 c0432764
[  413.316906] 5e60: 00000cc0 c3356208 00000001 3e4fcf47 c3356208 c3356208 c0b3b860 c3299008
[  413.325074] 5e80: 00000000 c0431b18 c3356208 00000000 c0b04c48 c042f5cc c3356200 c3b91000
[  413.333242] 5ea0: 00000001 c052f164 c3299004 3e4fcf47 c3ba5ec8 c3356200 c3356208 c3299004
[  413.341410] 5ec0: c3b91000 c3299398 c3299000 c0539bd8 00000000 00000001 c3299004 c0538f40
[  413.349577] 5ee0: 00000000 c3ba5ef7 00000000 00000000 00000000 00000000 10ffff00 3e4fcf47
[  413.357745] 5f00: ffffff92 c3b9128c 00061a80 c3b91000 c086bfc0 c086bfcc c3b91290 00000000
[  413.365913] 5f20: c3dee880 c052ff78 c3b9b580 c3b9128c c3dee880 c3df1c00 00000000 c0135e64
[  413.374081] 5f40: c3dee898 c0b03d00 c3b9b580 c3dee880 c3b9b594 c3dee898 c0b03d00 c3ba4000
[  413.382249] 5f60: 00000008 c0136098 00000000 c3b9c180 c3b9c100 00000000 c3b9b580 c013606c
[  413.390417] 5f80: c3b9c19c c3845ebc 00000000 c013b854 c3b9c100 c013b734 00000000 00000000
[  413.398584] 5fa0: 00000000 00000000 00000000 c01010e8 00000000 00000000 00000000 00000000
[  413.406751] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  413.414918] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[  413.423114] [<bf001174>] (esp_sdio_probe [esp8089]) from [<c0539944>] (sdio_bus_probe+0xfc/0x114)
[  413.431988] [<c0539944>] (sdio_bus_probe) from [<c04329b4>] (really_probe+0x1dc/0x2e0)
[  413.439904] [<c04329b4>] (really_probe) from [<c0432c34>] (driver_probe_device+0x60/0x1a0)
[  413.448162] [<c0432c34>] (driver_probe_device) from [<c0430cc8>] (bus_for_each_drv+0x74/0xb8)
[  413.456681] [<c0430cc8>] (bus_for_each_drv) from [<c0432764>] (__device_attach+0xd0/0x13c)
[  413.464939] [<c0432764>] (__device_attach) from [<c0431b18>] (bus_probe_device+0x84/0x8c)
[  413.473111] [<c0431b18>] (bus_probe_device) from [<c042f5cc>] (device_add+0x444/0x5e4)
[  413.481023] [<c042f5cc>] (device_add) from [<c0539bd8>] (sdio_add_func+0x5c/0x70)
[  413.488500] [<c0539bd8>] (sdio_add_func) from [<c0538f40>] (mmc_attach_sdio+0x270/0x370)
[  413.496584] [<c0538f40>] (mmc_attach_sdio) from [<c052ff78>] (mmc_rescan+0x304/0x38c)
[  413.504412] [<c052ff78>] (mmc_rescan) from [<c0135e64>] (process_one_work+0x150/0x358)
[  413.512326] [<c0135e64>] (process_one_work) from [<c0136098>] (worker_thread+0x2c/0x518)
[  413.520413] [<c0136098>] (worker_thread) from [<c013b854>] (kthread+0x120/0x150)
[  413.527804] [<c013b854>] (kthread) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
[  413.535014] Exception stack(0xc3ba5fb0 to 0xc3ba5ff8)
[  413.540059] 5fa0:                                     00000000 00000000 00000000 00000000
[  413.548226] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  413.556392] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[  413.563003] Code: e5954018 e3a01000 e5851018 e2873008 (e5948004)
[  413.569168] ---[ end trace 3facca9bc593b143 ]---

三、设置开机启动连接WiFi

新建一个rc.local文件到/etv/init.d目录下

# vi /etc/init.d/rc.local

内容：

!/bin/sh

sh /etc/init.d/auto_wifi_link.sh
echo "wifi finish!!"

创建脚本auto_wifi_link.sh放到/etc/init.d/目录下

vi /etc/init.d/auto_wifi_link.sh

内容：

#!/bin/sh
insmod /lib/modules/esp8089.ko config=crystal_26M_en=1 esp_reset_gpio=43
ifconfig wlan0 up
wpa_supplicant -B -c /etc/wpa_supplicant.conf -i wlan0
sleep 3s
udhcpc -i wlan0

修改开机启动项 vi /etc/inittab
在# now run any rc scripts 后加入如下

::sysinit:/etc/init.d/rc.local

如下：

# /etc/inittab
#
# Copyright (C) 2001 Erik Andersen <[email protected]>
#
# Note: BusyBox init doesn't support runlevels. The runlevels field is
# completely ignored by BusyBox init. If you want runlevels, use
# sysvinit.
#
# Format for each entry: <id>:<runlevels>:<action>:<process>
#
# id == tty to run on, or empty for /dev/console
# runlevels == ignored
# action == one of sysinit, respawn, askfirst, wait, and once
# process == program to run

# Startup the system
::sysinit:/bin/mount -t proc proc /proc
::sysinit:/bin/mount -o remount,rw /
::sysinit:/bin/mkdir -p /dev/pts
::sysinit:/bin/mkdir -p /dev/shm
::sysinit:/bin/mount -a
::sysinit:/bin/hostname -F /etc/hostname
# now run any rc scripts
::sysinit:/etc/init.d/rcS
::sysinit:/etc/init.d/rc.local #看这里！！！！

# Put a getty on the serial port
#console::respawn:/sbin/getty -L console 0 vt100 # GENERIC_SERIAL
::respawn:-/bin/sh

# Stuff to do for the 3-finger salute
#::ctrlaltdel:/sbin/reboot

# Stuff to do before rebooting
::shutdown:/etc/init.d/rcK
::shutdown:/sbin/swapoff -a
::shutdown:/bin/umount -a -r

修改rc.local 权限

# chmod 755 /etc/init.d/rc.local

rc.local就能够正常工作了。
reboot重启看到自动导入驱动然后连接wifi得到ip地址