linux下移植RT3070 驅動

RT3070驅動移植

無線網卡爲RT3070，驅動分爲STA驅動和SoftAP驅動兩種，STA驅動支持無線網卡工作在STA模式下，而SoftAP的驅動支持無線網卡工作在軟AP的模式下，可以作爲一個軟的接入點。STA驅動爲2010_0831_RT3070_Linux_STA_v2.3.0.0_DPO.bz2。SoftAP的驅動是：2010_0203_RT3070_SoftAP_v2.4.0.1_DPA.bz2。需要移植STA驅動和SoftAP驅動，兩款驅動的移植步驟差不多。下邊首先對STA驅動進行移植。

 

STA驅動的移植

 

#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（只給出需要修改的部分，“-”表示刪除的行，“+”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文件夾中的config.mk文件，需要修改的地方如下（只給出需要修改的部分）：

# 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

修改完成以後，通過以下命令編譯：

make ARCH=arm KBUILD_NOPEDANTIC=1

如果不加KBUILD_NOPEDANTIC=1將出現CFLAGS was changed in …. Fix it to use EXTRA_CFLAGS的錯誤，編譯不能通過。編譯完成後，會在os/linux文件夾中生成rt3070sta.ko的驅動模塊。此模塊通過下載工具可以下載到/mnt目錄。

在驅動目錄下新建一個文件夾Wireless/RT2870STA，將RT2870STA.dat複製進Wireless/RT2870STAm目錄下，同時將此文件夾拷貝進開發板。從超級終端進入開發板目錄/mnt使用以下命令將Wireless文件夾拷貝到/etc目錄下，將rt3070sta.ko拷貝進/home/root用戶目錄下：

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

打開root目錄，加載驅動模塊：

#cd /home/root #insmod rt3070sta.ko

如果加載出現一下錯誤：

#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

則需要在文件os/linux/usb_main_dev.c文件的開頭加上如下一行代碼：

MODULE_LICENSE(“GPL”);

然後重新編譯、重新加載，即可得到正確的結果。

用ifconfig  -a命令查看網絡，如果加載成功，不會有任何提示，同時可以查看到ra0設備的存在。

加載上模塊過後，可以用相關命令設置無線網卡。命令包括iwpriv、iwconfig、iwlist、ifconfig等。比如設置無線網卡地址爲192.168.1.5：

ifconfig ra0 192.168.1.5

設置無線網絡模式爲ad-hoc模式：

iwpriv ra0 set NetworkType=Adhoc

設置SSID名爲isn313：

iwconf ra0 essid isn313

查看無線網絡：

iwlist ra0 scanning

SoftAP驅動移植

解壓驅動2010_0203_RT3070_SoftAP_v2.4.0.1_DPA.bz2，然後進入目錄：

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（“-”表示刪除的行，“+”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_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

注意，在2010_0203_RT3070_SoftAP_v2.4.0.1_DPA.bz2驅動中，有三個文件夾，分別爲MODULE、NETIF、UTIL，在這三個文件中均有Makefile，所有的Makefile都需要如上修改，同樣，三個文件夾中的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

 

對不起，在修改驅動config.mk文件的時候，紅色修改部分沒有給全，應該是把CFLAGS和EXTRA_FLAGS中的-mbig-endian選項去掉，因爲在ARM中採用的小端模式！特此更正！

 

 

所有的config.mk都修改好以後，通過以下命令進行編譯：

make ARCH=arm KBUILD_NOPEDANTIC=1

如果編譯不能通過，請檢查是否所有的文件夾中的Makefile和config.mk都已經修改。編譯通過後，將在三個文件夾中分別生成三個可加載模塊：rt3070ap.ko，rtutil3070ap.ko，rtnet3070ap.ko。通過USB接口將這三個模塊和rt2870ap.dat文件下載到開發板目錄下。並將文件移動到相應位置：

#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文件夾中的.dat文件名必須是大寫的，否則模塊將無法讀取。

移動好後，進入root目錄並加載模塊：

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

此處，加載模塊一定要按此順序加載，否則將出現以下錯誤（用dmesg函數可查看相關錯誤信息）：

#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

在加載過程中若出現以下錯誤：

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

請修改UTIL/os/linux/usb_main_dev.c文件，在文件的開頭加上如下一行程序：

MODULE_LICENSE(“GPL”)

重新編譯：

#make clean #make KBUILD_NOPEDANTIC=1

然後再重新下載，按順序加載模塊即可成功。

模塊加載成功後，用一下命令可查看相關信息：

#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命令設定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，一個默認的名爲RT2860AP的網絡就建立起來了。用iwconfig命令可修改網絡的相關參數。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

結束後，可以通過以下命令卸載模塊：

#ifconfig ra0 down

#rmmod rtnet3070ap.ko

#rmmod rt3070ap.ko

#rmmod rtutil3070ap.ko