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分类： 嵌入式
2014-09-18 15:41:06
RT3070的驱动源码有sta和softap两种，而RT3070的驱动源码在Ralink官网不好弄，在CSDN花了3个大洋下载了RT3070的驱动源码.这边把SotfAp修改后的源码推送到github，跟大家分享:
$ git clone
因为我是想把这个驱动移植到我的webee210-WRT上，所以我把代码已经修改好了。下面说说都修改了什么地方。
1.修改Makefile
注意：我们需要修改的MODULE,NETIF,UTIL,目录下的Makfile,修改的内容是一样的
#PLATFORM: Target platform #PLATFORM = PC #PLATFORM = 5VT #PLATFORM = IKANOS_V160 #PLATFORM = IKANOS_V180 #PLATFORM = SIGMA #PLATFORM = SIGMA_8622 #PLATFORM = INIC #PLATFORM = STAR PLATFORM = IXP #PLATFORM = INF_TWINPASS #PLATFORM = INF_DANUBE #PLATFORM = INF_AR9 #PLATFORM = BRCM_6358 #PLATFORM = INF_AMAZON_SE #PLATFORM = CAVM_OCTEON #PLATFORM = CMPC #PLATFORM = RALINK_2880 #PLATFORM = RALINK_3052 #PLATFORM = SMDK #PLATFORM = KODAK_DC #PLATFORM = DM6446 #PLATFORM = FREESCALE8377 ..... ifeq ($(PLATFORM),IXP) LINUX_SRC = /home/webee-wrt/openWRT/webee210-WRT/Webee210-WRT/backfire_10.03.1/build_dir/linux-s5pc1xx_webee210/linux-2.6.35.7 CROSS_COMPILE = /home/webee-wrt/OpenWrt-Toolchain-s5pc1xx-for-arm_v7-a-gcc-4.3.3+cs_eglibc-2.8_eabi/toolchain-arm_v7-a_gcc-4.3.3+cs_eglibc-2.8_eabi/usr/bin/arm-openwrt-linux-gnueabi- endif
LINUX_SRC为你的编译好的内核的路径 CROSS_COMPILE为你的交叉编译器的路径
2.修改config.mk 如果你用我的src，这个文件则不用修改了，因为我已经改好了，这个文件注意是修改编译选项的BIG_ENDIAN选项,因为arm是小尾系统，所以我们需要这个地方。注意：我们需要修改的MODULE,NETIF,UTIL,目录下的os/linux下的config.mk
feq ($(PLATFORM),RMI) WFLAGS += -DRT_BIG_ENDIAN endif ifeq ($(PLATFORM),RMI_64) WFLAGS += -DRT_BIG_ENDIAN endif ifeq ($(PLATFORM),IXP) #WFLAGS += -DRT_BIG_ENDIAN //注释掉这里 endif .... //把这段代码修改如下，去掉-mbig-endian选项 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 ifeq ($(PLATFORM),SMDK) EXTRA_CFLAGS := $(WFLAGS) -I$(RT28xx_DIR)/include endif
3.修改usb_main_dev.c
在开头加上: MODULE_LICENSE(“GPL”);
4.修改rt_usb_util.c
找出AP驱动中的rt_usb_util.c文件，将usb_buffer_alloc和usb_buffer_free分别改为usb_alloc_coherent和 usb_free_coherent。
1.编译
$ sudo make ARCH=arm KBUILD_NOPEDANTIC=1
2.安装 将下面的文件从找MODULE,NETIF,UTIL,目录下的os/linux找出来，放在一个目录叫Wireless,然后把拷贝到你的开发板。
└── Wireless
├── RT2870AP.dat
├── rt3070ap.ko
├── rtnet3070ap.ko
└── rtutil3070ap.ko
mkdir /etc/Wireless/RT2870AP/,将RT2870AP.dat存放于此
下面加载驱动，一定要按照顺序来哟,于是我用了一个简单脚步
/etc/init.d/setup_ra0
insmod /lib/RT3070/Wireless/rtutil3070ap.ko insmod /lib/RT3070/Wireless/rt3070ap.ko insmod /lib/RT3070/Wireless/rtnet3070ap.ko echo "insmod rt3070 done" ifconfig ra0 up
成功挂载后，如下:
[ 40.275000] rt3070ap: module license 'RALINK' taints kernel. [ 40.275000] Disabling lock debugging due to kernel taint [ 40.345000] rtusb init ---> [ 40.345000] [ 40.345000] [ 40.345000] === pAd = a0926000, size = 417992 === [ 40.345000] [ 40.345000] <-- RTMPAllocAdapterBlock, Status=0 [ 40.350000] usbcore: registered new interface driver rt2870 insmod rt3070 done [ 40.615000] <-- RTMPAllocTxRxRingMemory, Status=0 [ 40.615000] -->RTUSBVenderReset [ 40.615000] <--RTUSBVenderReset [ 40.900000] Key1Str is Invalid key length(0) or Type(0) [ 40.900000] Key2Str is Invalid key length(0) or Type(0) [ 40.900000] Key3Str is Invalid key length(0) or Type(0) [ 40.900000] Key4Str is Invalid key length(0) or Type(0) [ 40.905000] 1. Phy Mode = 9 [ 40.905000] 2. Phy Mode = 9 [ 40.905000] NVM is Efuse and its size =2d[2d0-2fc] [ 40.990000] 3. Phy Mode = 9 [ 41.045000] MCS Set = ff 00 00 00 01 [ 41.075000] SYNC - BBP R4 to 20MHz.l [ 41.385000] SYNC - BBP R4 to 20MHz.l [ 41.695000] SYNC - BBP R4 to 20MHz.l [ 42.005000] SYNC - BBP R4 to 20MHz.l [ 42.315000] SYNC - BBP R4 to 20MHz.l [ 42.630000] SYNC - BBP R4 to 20MHz.l [ 42.940000] SYNC - BBP R4 to 20MHz.l [ 43.250000] SYNC - BBP R4 to 20MHz.l [ 43.775000] Main bssid = 98:3f:9f:23:c4:28 [ 43.775000] <==== rt28xx_init, Status=0 [ 43.780000] 0x1300 = 00064320
于是我们的PC就可以搜索到一个默认叫RT2860AP的wifi热点: