Mini2440内核移植USB无线网卡

原文地址：http://blog.sina.com.cn/s/blog_6701bbda0101kvjb.html
在B-LINK的驱动光盘里找到linux/150M/RTL8188CUS_linux_v3.0.2164.20110715.zip，解压得到RTL8192CU_8188CUS_8188CE-VAU_linux_v3.0.2164.20110715/driver/文件夹下的rtl8192_8188CU_linux_v3.0.2164.20110715.tar.gz，把它解压到/home/hxy/FriendlyARM/wifi/linux-2.6.32.2/drivers/net/wireless路径下。
cd /home/hxy/FriendlyARM/wifi/linux-2.6.32.2/drivers/net/wireless
mv rtl8192_8188CU_linux_v3.0.2164.20110715 rtl8192_8188
vim Kconfig 添加：
config RTL8192_8188
tristate "Realtek 8192 and 8188 USB support"
depends on MAC80211 && USB && WLAN_80211
select EEPROM_93CX6
---help---：
This is a driver for RTL8187 and RTL8187B based cards.
vim Makefile 添加：
obj-$(CONFIG_RTL8192_8188) += rtl8192_8188/
cd rtl8192_8188/
vim Makefile 修改
CONFIG_PLATFORM_I386_PC = n
CONFIG_PLATFORM_ARM_S3C2K4 = y //修改芯片架构
CONFIG_POWER_SAVING = n //去掉节能模式
ifeq ($(CONFIG_PLATFORM_ARM_S3C2K4), y)
EXTRA_CFLAGS += -DCONFIG_LITTLE_ENDIAN
ARCH := arm
CROSS_COMPILE := arm-linux-
KVER := 2.6.32.2
KSRC := /home/hxy/FriendlyARM/wifi/linux-$(KVER)
endif
（参考http://blog.csdn.net/mrjy1475726263/article/details/8886925）
cd ../../../../
make menuconfig选择：
Device Drivers --->
[*] Network device support --->
Wireless LAN --->
<*> Realtek 8192 and 8188 USB support

（题外：手千万不能太贱，make distclean是把整个内核的配置全清除了！！！好在linux-2.6.32.2-mini2440-20100728.tar.gz和linux-2.6.32.2-mini2440-20110413.tar.gz大抵无异。用之前的20110413的吧，得做备份才行！这是个教训，好在错得及时。
zip，tar cvzf *.tar.gz 要打包的路径，可用于备份。）

在/home/hxy/FriendlyARM/wifi/linux-2.6.32.2下修改版本号：
vim Makefile
EXTRAVERSION = .2-FriendlyARM
make zImage
cd drivers/net/wireless/rtl8192_8188
make
把生成的8192cu.ko拷到/lib/modules/2.6.32.2-FriendlyARM/路径下。
cd /lib/modules/2.6.32.2-FriendlyARM/
depmod /lib/modules/2.6.32.2-FriendlyARM/
modprobe 8192cu
（或者把8192cu.ko拷到/lib/modules/2.6.32.2-FriendlyARM/net/wireless路径下。
直接modprobe 8192cu）
(或者insmod 8192cu.ko
rtw driver version=v3.0.2164.20110715
usbcore: registered new interface driver rtl8192cu)

记得把usb-wifi-kits-for-mini2440-linux-2.6.32.2-20100728.tar.gz这个压缩包拷贝到mini2440的linux系统根目录中。
tar xvzf usb-wifi-kits-for-mini2440-linux-2.6.32.2-20100728.tar.gz
cp -r lib /lib
cp -r usr /usr
即可驱动成功，但是仍提示有错。插上无线网卡，提示识别出了器件：
usb 1-1: configuration #1 chosen from 1 choice
usb 1-1: USB disconnect, address 3
usb 1-1: new full speed USB device using s3c2410-ohci and address 4
usb 1-1: configuration #1 chosen from 1 choice
register rtw_netdev_ops to netdev_ops
CHIP TYPE: RTL8188C_8192C

usb_endpoint_descriptor(0):
bLength=7
bDescriptorType=5
bEndpointAddress=81
wMaxPacketSize=40
bInterval=0
RT_usb_endpoint_is_bulk_in = 1

usb_endpoint_descriptor(1):
bLength=7
bDescriptorType=5
bEndpointAddress=2
wMaxPacketSize=40
bInterval=0
RT_usb_endpoint_is_bulk_out = 2

usb_endpoint_descriptor(2):
bLength=7
bDescriptorType=5
bEndpointAddress=3
wMaxPacketSize=40
bInterval=0
RT_usb_endpoint_is_bulk_out = 3

usb_endpoint_descriptor(3):
bLength=7
bDescriptorType=5
bEndpointAddress=84
wMaxPacketSize=40
bInterval=1
RT_usb_endpoint_is_int_in = 4, Interval = 1
nr_endpoint=4, in_num=2, out_num=2

NON USB_SPEED_HIGH
Chip Version ID: VERSION_NORMAL_UMC_CHIP_88C_B_CUT.
RF_Type is 3!!
EEPROM type is E-FUSE
====> ReadAdapterInfo8192C
Boot from EFUSE, Autoload OK !
EEPROMVID = 0x0bda
EEPROMPID = 0x8176
EEPROMCustomerID : 0x00
EEPROMSubCustomerID: 0x00
RT_CustomerID: 0x00
_ReadMACAddress MAC Address from EFUSE = 48:02:2a:35:49:60
EEPROMRegulatory = 0x0
_ReadBoardType(0)
BT Coexistance = disable
RT_ChannelPlan: 0x08
_ReadPSSetting...bHWPwrPindetect(0)-bHWPowerdown(10) ,bSupportRemoteWakeup(1)
### PS params=> power_mgnt(0),usbss_enable(0) ###
### AntDivCfg(0)
readAdapterInfo_8192CU(): REPLACEMENT = 0
<==== ReadAdapterInfo8192C in 2185 ms

padapter->pwrctrlpriv.bSupportRemoteWakeup~~~~~~

padapter->pwrctrlpriv.bSupportRemoteWakeup~~~[1]~~~
rtw_macaddr_cfg MAC Address = 48:02:2a:35:49:60
MAC Address from pnetdev->dev_addr= 48:02:2a:35:49:60
bDriverStopped:1, bSurpriseRemoved:0, bup:0, hw_init_completed:0

[root@FriendlyARM /]# scan-wifi
cfg80211: module is already loaded
modprobe: 'net/wireless/cfg80211.ko': invalid parameter
mac80211: module is already loaded
modprobe: 'net/mac80211/mac80211.ko': invalid parameter
Unable to handle kernel paging request at virtual address e1a00004
pgd = c200c000
[e1a00004] *pgd=00000000
Internal error: Oops: 80000005 [#1]
last sysfs file: /sys/devices/virtual/vc/vcsa4/dev
Modules linked in: compat_firmware_class(+)
CPU: 0 Not tainted (2.6.32.2-FriendlyARM #11)
PC is at 0xe1a00004
LR is at sys_init_module+0x98/0x1e0
pc : [] lr : [] psr: 80000013
sp : c3bdff88 ip : 00000000 fp : 00000000
r10: be91ee98 r9 : c3bde000 r8 : c0035024
r7 : 00002b31 r6 : 000a3cd0 r5 : 00000000 r4 : bf06aff8
r3 : 00030074 r2 : 00000001 r1 : 00000000 r0 : 00000000
Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: c000717f Table: 3200c000 DAC: 00000015
Process modprobe (pid: 924, stack limit = 0xc3bde270)
Stack: (0xc3bdff88 to 0xc3be0000)
ff80: 000cdc88 00002b31 000a3cd0 000cc380 00000000 000b8bb4
ffa0: 00000080 c0034ea0 000cc380 00000000 000cdc88 00002b31 000a3cd0 00000000
ffc0: 000cc380 00000000 000b8bb4 00000080 000b8028 000a3cd0 be91ee98 00000000
ffe0: 00000000 be91ea8c 00017afc 401c8984 60000010 000cdc88 30612031 30612431
Code: bad PC value
---[ end trace ada6f384b2416aa3 ]---
Segmentation fault
Unable to handle kernel NULL pointer dereference at virtual address 00000008
pgd = c205c000
[00000008] *pgd=32004031, *pte=00000000, *ppte=00000000
Internal error: Oops: 17 [#2]
last sysfs file: /sys/devices/virtual/vc/vcsa4/dev
Modules linked in: compat_firmware_class(+)
CPU: 0 Tainted: G D (2.6.32.2-FriendlyARM #11)
PC is at m_show+0x48/0x144
LR is at m_show+0x38/0x144
pc : [] lr : [] psr: 00000013
sp : c200def8 ip : c3b4d000 fp : bf06affc
r10: c3bcd980 r9 : bf06affc r8 : bf06b120
r7 : 00000000 r6 : bf06affc r5 : c39f1d40 r4 : bf06aff8
r3 : 00000000 r2 : c200def0 r1 : c39f1d40 r0 : 00000000
Flags: nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: c000717f Table: 3205c000 DAC: 00000015
Process modprobe (pid: 926, stack limit = 0xc200c270)
Stack: (0xc200def8 to 0xc200e000)
dee0: c39f1d40 bf06affc
df00: c39f1d40 4001f000 00000400 c200df88 00000000 c00af670 00000001 c39f1d68
df20: 00100077 00000000 00000000 00000000 00000000 c38892a0 c3bcd980 4001f000
df40: c200df88 c0035024 c200c000 000c4d7c 00000000 c00d1fa0 00000400 c3bcd980
df60: 4001f000 c0099734 c3bcd980 4001f000 c3bcd980 00000400 000cdc88 00000003
df80: c0035024 c0099884 00000000 00000000 00000400 00000000 000cdc88 40229000
dfa0: 00000000 c0034ea0 000cdc88 40229000 00000004 4001f000 00000400 00000000
dfc0: 000cdc88 40229000 000cdc88 00000003 4001cc00 00000000 000c4d7c 00000000
dfe0: 00000000 bed05a58 401681a4 401b9ebc 60000010 00000004 00000000 00000000
[] (m_show+0x48/0x144) from [] (seq_read+0x1dc/0x484)
[] (seq_read+0x1dc/0x484) from [] (proc_reg_read+0x44/0x58)
[] (proc_reg_read+0x44/0x58) from [] (vfs_read+0xac/0x154)
[] (vfs_read+0xac/0x154) from [] (sys_read+0x3c/0x68)
[] (sys_read+0x3c/0x68) from [] (ret_fast_syscall+0x0/0x28)
Code: e2868f49 e5947128 e3a03000 ea000006 (e5972008)
---[ end trace ada6f384b2416aa4 ]---
Segmentation fault
（网上说该用最新的内核linux-2.6.32.2-mini2440-20100728.tar.gz，试过了一样的结果。我猜想这款无线网卡可能太新了，这些内核都不兼容。以后有时间移植一个最新的内核试试吧）
Ctrl+c,随手一试，将出现以下信息：
^C+871x_drv - drv_open, bup=0
===> FirmwareDownload91C() fw:Rtl819XFwImageArray_UMC_B
fw_ver=v75, fw_subver=0, sig=0x88c0
fw download ok!
Set RF Chip ID to RF_6052 and RF type to 1T1R.
pwrdown, 0x5c(BIT7)=00
eRfPowerStateToSet=0
IQK:Start!!!
Path A IQK Success!!
Path A IQK Success!!
IQK: final_candidate is 0
IQK: RegE94=100 RegE9C=e RegEA4=fc RegEAC=5 RegEB4=0 RegEBC=0 RegEC4=0 RegECC=0
Path A IQ Calibration Success !
pdmpriv->TxPowerTrackControl = 1
MAC Address from REG_MACID = 48:02:2a:35:49:60
MAC Address = 48:02:2a:35:49:60
-871x_drv - drv_open, bup=1
IQK:Start!!!
Path A IQK Success!!
Path A IQK Success!!
IQK: final_candidate is 0
IQK: RegE94=101 RegE9C=a RegEA4=f9 RegEAC=6 RegEB4=0 RegEBC=0 RegEC4=0 RegECC=0
Path A IQ Calibration Success !
ifconfig
eth0 Link encap:Ethernet HWaddr 08:90:90:90:90:90
inet addr:192.168.1.230 Bcast:192.168.1.255 Mask:255.255.255.0
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)
Interrupt:51 Base address:0x2300

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 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:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

wlan0 Link encap:Ethernet HWaddr 48:02:2A:35:49:60
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:33 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)

再来个scan-wifi，等了很久，直接Ctrl+c，出现：
^Csurvey done event(32)
CMCC
116% ChinaNet-uxNL
60% CMCC-AUTO(Security)
113% TP-LINK_1387D9(Security)
63% CMCC
66% Magic-systech test
67% XM-LAN(Security)
79% CMCC-AUTO(Security)
71% hquic(Security)
70% OpenWrt(Security)
84% ChinaNet-QD7d(Security)
33% 11 Access Point Found
start-wifi wpa2 hquic 12345678
Sending discover...
Sending discover...
Sending discover...
Sending discover...
Sending discover...
Sending discover...
Sending discover...
Sending discover...
Sending discover...
Sending discover...
Sending discover...
漫长的等待。。
等不了了，按理说，到这一步，应该是能够联上网络的，然而。。。算了，作罢吧。
至此，网卡的移植可告一段落了，马马虎虎，不论成败。
（参考 xvlf compat-wireless.tar.bz2

移植TL-WN322G+这款网卡。问题也很多。时间很紧迫，暂且搁下吧，尽管很不舍得。

1.到 下载最新的compat-wireless并解压缩
2.hxy@hxy-HP-xw4600-Workstation:~/FriendlyARM/wifi/linux-2.6.32.2$ vim .config
添加：
CONFIG_ATH_COMMON=m
CONFIG_ATH9K_HW=m
CONFIG_ATH9K_COMMON=m
CONFIG_ATH9K_HTC=m
修改：
CONFIG_MAC80211=m
CONFIG_CFG80211=m

cd ~/FriendlyARM/wifi/compat-wireless-2012-12-18
vim Makefile
注释掉：#obj-$(CONFIG_COMPAT_VIDEO_MODULES) += drivers/gpu/drm/
make ARCH=arm CROSS_COMPILE=arm-linux- KLIB:=~/FriendlyARM/wifi/linux-2.6.32.2 KLIB_BUILD :=~/FriendlyARM/wifi/linux-2.6.32.2
遇有错的语句，就找到相应的句子把它屏蔽掉，不知道这样子有没有好果子吃。至少，编译通过了，我这么安慰自己。
把里头编译好的文件复制到开发板
[root@FriendlyARM ath9k]# modprobe ath9k_htc
cfg80211: Unknown symbol compat_genl_unregister_family
cfg80211: Unknown symbol compat_genl_register_family_with_ops
cfg80211: Unknown symbol compat_dependency_symbol
cfg80211: Unknown symbol compat_schedule_work
cfg80211: Unknown symbol compat_schedule_delayed_work
modprobe: 'net/wireless/cfg80211.ko': unknown symbol in module or invalid paramr
ath: Unknown symbol wiphy_apply_custom_regulatory
ath: Unknown symbol freq_reg_info
modprobe: 'drivers/net/wireless/ath/ath.ko': unknown symbol in module or invalir
ath9k_hw: Unknown symbol ath_hw_setbssidmask
ath9k_hw: Unknown symbol ath_regd_get_band_ctl
modprobe: 'drivers/net/wireless/ath/ath9k/ath9k_hw.ko': unknown symbol in modulr
Unable to handle kernel paging request at virtual address e1a00004
pgd = c3044000
[e1a00004] *pgd=00000000
Internal error: Oops: 80000005 [#1]
last sysfs file: /sys/devices/platform/s3c2410-ohci/usb1/1-1/dev
Modules linked in: compat_firmware_class(+)
CPU: 0 Not tainted (2.6.32.2-FriendlyARM #10)
PC is at 0xe1a00004
LR is at sys_init_module+0x98/0x1e0
pc : [] lr : [] psr: 80000013
sp : c3b93f88 ip : 00000000 fp : 00000000
r10: be882e08 r9 : c3b92000 r8 : c0035024
r7 : 00002b31 r6 : 000a3cd0 r5 : 00000000 r4 : bf0e2ff8
r3 : 00030074 r2 : 00000001 r1 : 00000000 r0 : 00000000
Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: c000717f Table: 33044000 DAC: 00000015
Process modprobe (pid: 1117, stack limit = 0xc3b92270)
Stack: (0xc3b93f88 to 0xc3b94000)
3f80: 000cdc88 00002b31 000a3cd0 000c5cd8 00000000 000b828c
3fa0: 00000080 c0034ea0 000c5cd8 00000000 000cdc88 00002b31 000a3cd0 00000000
3fc0: 000c5cd8 00000000 000b828c 00000080 000b8028 000a3cd0 be882e08 00000000
3fe0: 00000000 be882a4c 00017afc 401c8984 60000010 000cdc88 00000000 00000000
Code: bad PC value
---[ end trace 7189b8b7ef8cf3a2 ]---
Segmentation fault
于是彻底服气了。）

（还是很不服气。于是，又想办法，在
下载linux-2.6.32.61.tar等几个新内核。把内核里的网卡驱动换成新内核的驱动代码，编译，或有错，或效果一样没变。
后来发现所需要的驱动代码里的ath9k并不能make menuconfig进内核里，必须添加PCI模块，找来找去，没找到相应的办法，只好把PCI改成USB，如下：
vim drivers/net/wireless/ath/ath9k/Kconfig
tristate "Atheros 802.11n wireless cards support"
depends on PCI && MAC80211 && WLAN_80211
修改成
tristate "ATH9K Atheros 802.11n wireless cards support"
depends on USB && MAC80211 && WLAN_80211
结果不尽如人意，还是不行。还是应该试试怎么添加PCI。
——2013.7.20）
PCI还是未能添加，倒是下载了compat-wireless-2011-01-16，利用里头的Kconfig，解决了找到ATH9K_HTC的配置问题。compat-wireless-2011-01-16也make通过了，找到对应的模块ath9k_common.ko，ath9k_htc.ko，ath9k_hw.ko，cfg80211.ko，mac80211.ko，ar9271.fw，下载到开发板上，代替内核生成的模块。然而依然不行：
[root@FriendlyARM ath9k]# modprobe ath9k_htc
cfg80211: Unknown symbol compat_genl_unregister_family
cfg80211: Unknown symbol compat_genl_register_family_with_ops
modprobe: 'net/wireless/cfg80211.ko': unknown symbol in module or invalid parameter
ath: Unknown symbol wiphy_apply_custom_regulatory
ath: Unknown symbol freq_reg_info
modprobe: 'drivers/net/wireless/ath/ath.ko': unknown symbol in module or invalid parameter
ath9k_hw: Unknown symbol ath_hw_setbssidmask
ath9k_hw: Unknown symbol ath_hw_cycle_counters_update
ath9k_hw: Unknown symbol ath_regd_get_band_ctl
ath9k_hw: Unknown symbol ath_hw_get_listen_time
ath9k_hw: Unknown symbol ath_printk
modprobe: 'drivers/net/wireless/ath/ath9k/ath9k_hw.ko': unknown symbol in module or invalid parameter
Unable to handle kernel paging request at virtual address e1a00004
——2013.7.21
参考 做下来，仅编译生成了kfifo.ko，没有rfkill_backport.ko模块，不知道错在哪里。
——2013.7.23不搞了。在此备个份linux-2.6.32.2-mini2440-20100728.tar.gz。