RT3070_STA_驱动移植文档

[连载]RT3070STA
驱动移植
移植环境：

       主机操作系统：Ubantu10.10

       目标系统：at91sam9m10内核linux-2.6.30

       交叉编译器：arm-none-linux-gnueabi-
 
驱动版本：2011_0107_RT3070_RT3370_Linux_STA_v2.5.0.1_DPO
 
Networkingsupport
Wireless
-*-Wirelessextensions
[*]Wirelessextensions sysfs files
DeviceDrivers
Networkdevice support
WierlessLAN
[*]WirelessLAN(IEEE 802.11)
<M>Ralinkdriver support

1.下载RT3070驱动源码版本：2011_0107_RT3070_RT3370_Linux_STA_v2.5.0.1_DPO

download: 下载页面
选到 T8070/RT3070/RT3370/RT5370/RT5372USB
 这个然后随便输入名字和邮箱即可下载。
 
2.RT3070驱动修改
解压
tar-zxvf 2011_0107_RT3070_RT3370_Linux_STA_v2.5.0.1_DPO.tar.gz
进入RT3070_Linux_STA目录，看到有一个README_STA_usb文件，里面介绍了如何加载该驱动,先浏览一下
 
2.1 先设好环境变量

exportPATH=/usr/local/arm/arm-2007q1/bin:$PATH
 
2.2 makefile修改 (-为去掉设置，+为新加的设置)

#vimakefile
-#PLATFORM = PC

+ PLATFORM = IXP

#(选用的是IXP)
ifeq($(PLATFORM),IXP)
-LINUX_SRC
= /project/stable/Gmtek/snapgear-uclibc/linux-2.6.x

-CROSS_COMPILE = arm-linux-

+ LINUX_SRC = /home/rpf413/at91/linux/linux-2.6.30

+ CROSS_COMPILE = /usr/local/arm/arm-2007q1/bin/arm-none-linux-gnueabi-

endif

2.3 /os/linux/config.mk修改

#cd/os/linux/

#vi config.mk
#Support Wpa_Supplicant

- HAS_WPA_SUPPLICANT=n

+HAS_WPA_SUPPLICANT=y
#Support Native WpaSupplicant for Network Maganger

-HAS_NATIVE_WPA_SUPPLICANT_SUPPORT=n

+HAS_NATIVE_WPA_SUPPLICANT_SUPPORT=y
ifeq($(PLATFORM),IXP)

- WFLAGS +=-DRT_BIG_ENDIAN

#加这个选项，模块运行时显示出错，CPU不能工作

endif
ifeq($(PLATFORM),IXP)
 -CFLAGS := -v -D__KERNEL__ -DMODULE
-I$(LINUX_SRC)/include-I$(RT28xx_DIR)/include -mbig-endian -Wall -Wstrict-prototypes-Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -Uarm -fno-common-pipe -mapcs-32 -D__LINUX_ARM_ARCH__=5 -mcpu=xscale -mtune=xscale-malignment-traps -msoft-float $(WFLAGS)

        -EXTRA_CFLAGS := -v $(WFLAGS) -I$(RT28xx_DIR)/include -mbig-endian

 +EXTRA_CFLAGS := -v $(WFLAGS) -I$(RT28xx_DIR)/include

 exportCFLAGS       

endif
 
3、  编译源码make通过,在2011_0107_RT3070_RT3370_Linux_STA_v2.5.0.1_DPO/os/linux目录下生成了rt3070sta.ko,也就是RT3070的驱动了
 makeKBUILD_NOPEDANTIC=1
4.   拷贝驱动到目标系统把RT2870STA.dat拷贝到/etc/Wireless/RT2870STA目录下
把rt3070sta.ko拷贝到/xxx/目录下xxx自定

 
5.加载驱动模块insmod/xxx/rt3070sta.ko
出现以下错误
insmod:error inserting 'rt3070sta.ko': -1 Unknown symbol inmodule

rt3070sta: Unknown symbol usb_alloc_urb

rt3070sta:Unknown symbol usb_free_urb

rt3070sta: Unknown symbolusb_register

rt3070sta: Unknown symbol usb_put_dev

rt3070sta:Unknown symbol usb_get_dev

rt3070sta: Unknown symbolusb_submit_urb

rt3070sta: Unknown symbolusb_control_msg

rt3070sta: Unknown symbolusb_deregister

rt3070sta: Unknown symbol usb_kill_urb

rt3070sta:Unknown symbol usb_buffer_free

rt3070sta: Unknown symbolusb_buffer_alloc

insmod: cannot insert `rt3070sta.ko': Unknownsymbol in module (-1): No such file or directory
原因未加载USB驱动
请修改UTIL/os/linux/usb_main_dev.c文件，在文件的开头加上如下一行程序：
MODULE_LICENSE(“GPL”)
重新编译：
MakeARCH=armCROSS_COMPILE=/usr/local/arm/arm-2007q1/bin/arm-none-linux-gnueabi-
  
5.3 然后再加载rt3070sta.ko
手动添加：/etc/Wireless/RT2870STA/RT2870STA.dat

insmod/xxx/rt3070sta.ko
显示
rtusbinit rt2870 --->
===pAd = d1af4000, size = 514424 ===
<--RTMPAllocTxRxRingMemory, Status=0

<-- RTMPAllocAdapterBlock,Status=0

usbcore: registered new driver rt2870
加载成功
#ifconfig-a
可以查看到ra0设备的存在
若无密码或密码为WEP加密，则此时可以启动无线,若密码为WPA加密,则需移植wpa_supplicant,往后再说移植
 
6.无密码或密码为WEP加密:6.1 启动无线

#ifconfigra0 up  
(Efusefor 3062/3562/3572) Size=0x2d [2d0-2fc]

RTMP_TimerListAdd: addtimer obj d1b3c620!

RTMP_TimerListAdd: add timer objd1b3c650!

RTMP_TimerListAdd: add timer objd1b3c680!

RTMP_TimerListAdd: add timer objd1b3c5f0!

RTMP_TimerListAdd: add timer objd1b3c560!

RTMP_TimerListAdd: add timer objd1b3c590!

RTMP_TimerListAdd: add timer objd1b06b94!

RTMP_TimerListAdd: add timer objd1af5f54!

RTMP_TimerListAdd: add timer objd1af5f8c!

RTMP_TimerListAdd: add timer objd1b06c38!

RTMP_TimerListAdd: add timer objd1b06b34!

RTMP_TimerListAdd: add timer objd1b06c04!

-->RTUSBVenderReset

<--RTUSBVenderReset

Key1Stris Invalid key length(0) or Type(0)

Key2Str is Invalid keylength(0) or Type(0)

Key3Str is Invalid key length(0) orType(0)

Key4Str is Invalid key length(0) or Type(0)

1. Phy Mode= 5

2. Phy Mode = 5

phy mode> Error! The chip does notsupport 5G band 5!

RTMPSetPhyMode: channel is out of range, usefirst channel=1

(Efuse for 3062/3562/3572) Size=0x2d [2d0-2fc]

3.Phy Mode = 9

MCS Set = ff 00 00 00 01

<==== rt28xx_init,Status=0

0x1300 = 00064300
启动成功
 
6.2 设置ip

#ifconfigra0 192.168.50.166 netmask 255.255.255.0
 
6.3 扫描无线网络

#iwlistra0 scan
===>rt_ioctl_giwscan.9(9) BSS returned, data->length = 1476

ra0       Scancompleted :

          Cell01 - Address:F0:7D:68:96:A6:C2

                    Protocol:802.11b/g/n

                    ESSID:"dlinktf"

                    Mode:Managed

                    Frequency:2.412GHz (Channel 1)

                    Quality=18/100  Signallevel=-83 dBm  Noise level=-92dBm

                    Encryptionkey:on

                    BitRates:54 Mb/s

          Cell02 - Address:F4:EC:38:55:AF:BC

                    Protocol:802.11b/g/n

                    ESSID:"visview"

                    Mode:Managed

                    Frequency:2.427GHz (Channel 4)

                    Quality=18/100  Signallevel=-83 dBm  Noise level=-91dBm

                    Encryptionkey:off

                    BitRates:54 Mb/s
显示以上信息说明模块已经正常工作
 
6.4 设置SSID和WEP加密算法
可以参考里面的iwpriv_usage.txt进行配置，

6.4.1 无密码

ConfigSTA to link with AP which is OPEN/NONE(Authentication/Encryption)

1.iwpriv ra0 set NetworkType=Infra

2. iwpriv ra0 setAuthMode=OPEN

3. iwpriv ra0 set EncrypType=NONE

4. iwpriv ra0set SSID="AP's SSID"
 
6.4.2 WEP加密算法

iwprivra0 set NetworkType=Infra

iwpriv ra0 set AuthMode=SHARED

iwprivra0 set EncrypType=WEP

iwpriv ra0 set DefaultKeyID=1

iwpriv ra0set Key1="AP's wep key"

iwpriv ra0 set SSID="AP'sSSID"
设置完一会，等网络连接好就可以了。

WPA加密详见openssl驱动移植，wpa_supplicant驱动移植。
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