linux下移植RT3070 驱动

RT3070驱动移植

无线网卡为RT3070，驱动分为STA驱动和SoftAP驱动两种，STA驱动支持无线网卡工作在STA模式下，而SoftAP的驱动支持无线网卡工作在软AP的模式下，可以作为一个软的接入点。STA驱动为2010_0831_RT3070_Linux_STA_v2.3.0.0_DPO.bz2。SoftAP的驱动是：2010_0203_RT3070_SoftAP_v2.4.0.1_DPA.bz2。需要移植STA驱动和SoftAP驱动，两款驱动的移植步骤差不多。下边首先对STA驱动进行移植。

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STA驱动的移植

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#tar jxvf 2010_0831_RT3070_Linux_STA_v2.3.0.0_DPO.bz2 cd 2010_0831_RT3070_Linux_STA_v2.3.0.0_DPO

修改原有的Makefile文件如下（只给出需要修改的部分，“-”表示删除的行，“+”表示添加的行）：

+#Makefile for RT3070 on MBC-SAM9G45 +#2010_11_13 by liyi RT28xx_MODE = STA TARGET = LINUX CHIPSET = 3070 -PLATFORM = PC +PLATFORM = IXP __ ifeq ($(PLATFORM),IXP) -LINUX_SRC = /project -CROSS_COMPILE = arm-linux- +LINUX_SRC = /home/Embest_SAM9G45/linux-2.6.30 +CROSS_COMPILE = /usr/local/arm2007q1/bin/arm-none-linux-gnueabi- endif

修改os/linux文件夹中的config.mk文件，需要修改的地方如下（只给出需要修改的部分）：

# 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_ _+#WFLAGS += -DRT_BIG_ENDIAN_ _endif_ __ _ifeq ((PLATFORM),IXP) EXTRA_CFLAGS := -v (WFLAGS) -I(RT28xx_DIR)/include endif __ ifeq ((PLATFORM),IXP)_ ___\- CFLAGS := -v -D__KERNEL__ -DMODULE -I(LINUX_SRC)/include -I(RT28xx_DIR)/include -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 __ - export CFLAGS - + endif

修改完成以后，通过以下命令编译：

make ARCH=arm KBUILD_NOPEDANTIC=1

如果不加KBUILD_NOPEDANTIC=1将出现CFLAGS was changed in …. Fix it to use EXTRA_CFLAGS的错误，编译不能通过。编译完成后，会在os/linux文件夹中生成rt3070sta.ko的驱动模块。此模块通过下载工具可以下载到/mnt目录。

在驱动目录下新建一个文件夹Wireless/RT2870STA，将RT2870STA.dat复制进Wireless/RT2870STAm目录下，同时将此文件夹拷贝进开发板。从超级终端进入开发板目录/mnt使用以下命令将Wireless文件夹拷贝到/etc目录下，将rt3070sta.ko拷贝进/home/root用户目录下：

#cp /mnt/Wireless /usr –r #cp /mnt/rt3070sta.ko /home/root

打开root目录，加载驱动模块：

#cd /home/root #insmod rt3070sta.ko

如果加载出现一下错误：

#insmod rt3070sta.ko insmod: error inserting 'rt3070sta.ko': -1 Unknown symbol in module _#dmesg	grep rt3070_ [ 2443.154486] rt2070ap: Unknown symbol usb_alloc_urb [ 2443.154628] rt2070ap: Unknown symbol usb_free_urb [ 2443.155032] rt2070ap: Unknown symbol usb_register_driver [ 2443.155324] rt2070ap: Unknown symbol usb_put_dev [ 2443.155439] rt2070ap: Unknown symbol usb_get_dev [ 2443.155652] rt2070ap: Unknown symbol usb_submit_urb [ 2443.156164] rt2070ap: Unknown symbol usb_control_msg [ 2443.156553] rt2070ap: Unknown symbol usb_deregister [ 2443.157013] rt2070ap: Unknown symbol usb_kill_urb [ 2443.157116] rt2070ap: Unknown symbol usb_buffer_free [ 2443.157443] rt2070ap: Unknown symbol find_vpid [ 2443.157675] rt2070ap: Unknown symbol usb_buffer_alloc

则需要在文件os/linux/usb_main_dev.c文件的开头加上如下一行代码：

MODULE_LICENSE(“GPL”);

然后重新编译、重新加载，即可得到正确的结果。

用ifconfig -a命令查看网络，如果加载成功，不会有任何提示，同时可以查看到ra0设备的存在。

加载上模块过后，可以用相关命令设置无线网卡。命令包括iwpriv、iwconfig、iwlist、ifconfig等。比如设置无线网卡地址为192.168.1.5：

ifconfig ra0 192.168.1.5

设置无线网络模式为ad-hoc模式：

iwpriv ra0 set NetworkType=Adhoc

设置SSID名为isn313：

iwconf ra0 essid isn313

查看无线网络：

iwlist ra0 scanning

SoftAP驱动移植

解压驱动2010_0203_RT3070_SoftAP_v2.4.0.1_DPA.bz2，然后进入目录：

tar jxvf 2010_0203_RT3070_SoftAP_v2.4.0.1_DPA.bz2 cd 2010_0203_RT3070_SoftAP_v2.4.0.1_DPA

修改Makefile如下（“-”表示删除的行，“+”表示添加的行）：

+#Makefile for RT3070 on MBC-SAM9G45 +#2010_11_13 by liyi RT28xx_MODE = AP TARGET = LINUX CHIPSET = 3070 -PLATFORM = PC +PLATFORM = IXP ……… ifeq ($(PLATFORM),IXP) -Linux_SR C = /project……….. -CROSS_COMPILE = arm-linux- +LINUX_SRC = /home/Embest_SAM9G45/linux-2.6.30 +CROSS_COMPILE = /usr/local/arm2007q1/bin/arm-none-linux-gnueabi- endif

注意，在2010_0203_RT3070_SoftAP_v2.4.0.1_DPA.bz2驱动中，有三个文件夹，分别为MODULE、NETIF、UTIL，在这三个文件中均有Makefile，所有的Makefile都需要如上修改，同样，三个文件夹中的config.mk文件也都需要修改。

修改config.mk配置文件。

ifeq ((PLATFORM),IXP)_ _\- WFLAGS += -DRT_BIG_ENDIAN_ _+#WFLAGS += -DRT_BIG_ENDIAN_ _endif_ __ _ifeq ((PLATFORM),IXP) __#WFLAGS += -DRT_BIG_ENDIAN __endif __ ifeq ((PLATFORM),IXP)_ ___CFLAGS := -v -D__KERNEL__ -DMODULE -I(LINUX_SRC)/include -I(RT28xx_DIR)/include -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 __export CFLAGS __endif

对不起，在修改驱动config.mk文件的时候，红色修改部分没有给全，应该是把CFLAGS和EXTRA_FLAGS中的-mbig-endian选项去掉，因为在ARM中采用的小端模式！特此更正！

所有的config.mk都修改好以后，通过以下命令进行编译：

make ARCH=arm KBUILD_NOPEDANTIC=1

如果编译不能通过，请检查是否所有的文件夹中的Makefile和config.mk都已经修改。编译通过后，将在三个文件夹中分别生成三个可加载模块：rt3070ap.ko，rtutil3070ap.ko，rtnet3070ap.ko。通过USB接口将这三个模块和rt2870ap.dat文件下载到开发板目录下。并将文件移动到相应位置：

#mkdir /etc/Wireless/ #mkdir /etc/Wireless/RT2870AP/ #cp /mnt/rt2870ap.dat /etc/Wireless/RT2870AP/RT2870AP.dat #cp /mnt/rt3070ap.ko /home/root #cp /mnt/rtutil3070ap.ko /home/root #cp /mnt/rtnet3070ap.ko /home/root

第三行中，在RT2870AP文件夹中的.dat文件名必须是大写的，否则模块将无法读取。

移动好后，进入root目录并加载模块：

#cd /home/root #insmod rtutil3070ap.ko #insmod rt3070ap.ko #insmod rtnet3070ap.ko #ifconfig ra0 up

此处，加载模块一定要按此顺序加载，否则将出现以下错误（用dmesg函数可查看相关错误信息）：

#insmod rt3070sta.ko insmod: error inserting 'rt3070sta.ko': -1 Unknown symbol in module _#dmesg	grep rt3070_ __ [ 1011.612979] rt3070ap: Unknown symbol rausb_buffer_free [ 1011.613153] rt3070ap: Unknown symbol RtmpOSTaskNotifyToExit [ 1011.613410] rt3070ap: Unknown symbol rausb_buffer_alloc [ 1011.613536] rt3070ap: Unknown symbol RTMPFreeNdisPacket [ 1011.613692] rt3070ap: Unknown symbol AdapterBlockAllocateMemory [ 1011.613816] rt3070ap: Unknown symbol RTMP_IndicateMediaState [ 1011.614106] rt3070ap: Unknown symbol RTMP_SetPeriodicTimer [ 1011.614241] rt3070ap: Unknown symbol os_alloc_mem [ 1011.614373] rt3070ap: Unknown symbol ClonePacket [ 1011.614505] rt3070ap: Unknown symbol RTDebugLevel [ 1011.614646] rt3070ap: Unknown symbol announce_802_3_packet [ 1011.614780] rt3070ap: Unknown symbol Sniff2BytesFromNdisBuffer [ 1011.614916] rt3070ap: Unknown symbol RTMP_OS_Add_Timer [ 1011.615043] rt3070ap: Unknown symbol rausb_submit_urb [ 1011.615167] rt3070ap: Unknown symbol RTMP_AllocateFragPacketBuffer [ 1011.615292] rt3070ap: Unknown symbol rausb_alloc_urb [ 1011.615491] rt3070ap: Unknown symbol RtmpOSNetPktAlloc [ 1011.615616] rt3070ap: Unknown symbol VLAN_8023_Header_Copy [ 1011.615739] rt3070ap: Unknown symbol RTMP_OS_Mod_Timer [ 1011.615863] rt3070ap: Unknown symbol os_free_mem [ 1011.616005] rt3070ap: Unknown symbol rausb_control_msg [ 1011.616079] rt3070ap: Unknown symbol duplicate_pkt_with_TKIP_MIC [ 1011.616079] rt3070ap: Unknown symbol duplicate_pkt_with_VLAN [ 1011.616079] rt3070ap: Unknown symbol DuplicatePacket [ 1011.616079] rt3070ap: Unknown symbol RtmpOSTaskCustomize [ 1011.616079] rt3070ap: Unknown symbol RTMP_OS_Del_Timer [ 1011.616079] rt3070ap: Unknown symbol rausb_free_urb [ 1011.616079] rt3070ap: Unknown symbol get_netdev_from_bssid [ 1011.616079] rt3070ap: Unknown symbol hex_dump [ 1011.616079] rt3070ap: Unknown symbol RtmpOSFileOpen [ 1011.616079] rt3070ap: Unknown symbol RTMPFreeAdapter [ 1011.616079] rt3070ap: Unknown symbol RtmpOSFSInfoChange [ 1011.616079] rt3070ap: Unknown symbol wlan_802_11_to_802_3_packet [ 1011.618201] rt3070ap: Unknown symbol RTMP_GetCurrentSystemTime [ 1011.618341] rt3070ap: Unknown symbol RTMPAllocateNdisPacket [ 1011.618498] rt3070ap: Unknown symbol RTMPSendWirelessEvent [ 1011.618621] rt3070ap: Unknown symbol RTMPL2FrameTxAction [ 1011.618747] rt3070ap: Unknown symbol rausb_kill_urb [ 1011.618899] rt3070ap: Unknown symbol RTMP_OS_Init_Timer [ 1011.619022] rt3070ap: Unknown symbol RTMPusecDelay [ 1011.619147] rt3070ap: Unknown symbol update_os_packet_info [ 1011.619312] rt3070ap: Unknown symbol RtmpOSFileRead [ 1011.619517] rt3070ap: Unknown symbol RtmpOSFileClose [ 1011.619641] rt3070ap: Unknown symbol RTMP_QueryPacketInfo [ 1011.619764] rt3070ap: Unknown symbol RtmpOSFileWrite

在加载过程中若出现以下错误：

[421.461365] rt3070ap: module license 'RALINK' taints kernel. [421.461723] Disabling lock debugging due to kernel taint

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：

#make clean #make KBUILD_NOPEDANTIC=1

然后再重新下载，按顺序加载模块即可成功。

模块加载成功后，用一下命令可查看相关信息：

#ifconfig –a eth0 Link encap:Ethernet HWaddr 3A:1F:34:08:54:54 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:25 Base address:0xc000 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:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:576 (576.0 B) TX bytes:576 (576.0 B) ra0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 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) #iwconfig ra0 ra0 RTWIFI SoftAP ESSID:"RT2860AP" Nickname:"" Mode:Managed Channel=11 Access Point: 00:0C:43:41:6F:A6 Bit Rate=150 Mb/s

用ifconfig命令设定ra0的IP地址：

#ifconfig ra0 192.168.1.1 ra0 Link encap:Ethernet HWaddr 00:0C:43:41:6F:A6 inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING 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:121922 (119.0 KiB) TX bytes:9072 (8.8 KiB)

至此，一个默认的名为RT2860AP的网络就建立起来了。用iwconfig命令可修改网络的相关参数。如：

#iwconfig ra0 set SSID=”RT_AP” #iwconfig ra0 ra0 RTWIFI SoftAP ESSID:"RT_AP" Nickname:"" Mode:Managed Channel=11 Access Point: 00:0C:43:41:6F:A6 Bit Rate=150 Mb/s

结束后，可以通过以下命令卸载模块：

#ifconfig ra0 down #rmmod rtnet3070ap.ko #rmmod rt3070ap.ko #rmmod rtutil3070ap.ko