本文講述在Linux 3.10下Realek RTL8723A Linux Wifi 驅(qū)動(dòng)的移植。
Prerequisites 硬件平臺(tái)：Atmel SAMA5 軟件平臺(tái)：Linux 3.10 + Android 4.4 Wifi模組：RTL8723AU (USB接口)
Realtek RTL8723A Wi-Fi Software& Driver for Linux and Android RTL8723A_WiFi_linux_v4.1.6_7336.20130426_CCC02.zip
目錄結(jié)構(gòu) liaops@ubuntu-server:/media/android/liaops/temp/RTL8723A_WiFi_linux_v4.1.6_7336.20130426$tree -L 2 . ├──android_ref_codes_JB_4.1 │ ├── linux-3.0.42_STATION_INFO_ASSOC_REQ_IES.diff │ ├── realtek_wifi_SDK_for_android_JB_4.1_20130306.tar.gz │ └── Realtek_Wi-Fi_SDK_for_Android_JB_4_1.pdf ├──android_ref_codes_JB_4.2 // Android JB 4.2 Realtek Wifi移植 │ ├──linux-3.0.42_STATION_INFO_ASSOC_REQ_IES.diff │ ├── realtek_wifi_SDK_for_android_JB_4.2_20130208.tar.gz │ └──Realtek_Wi-Fi_SDK_for_Android_JB_4_2.pdf //移植文檔 ├──android_reference_codes │ ├── realtek_wifi_SDK_for_android_20120618.tar.gz │ └── realtek_wifi_SDK_for_android.txt ├──android_reference_codes_ICS_nl80211 │ ├── realtek_wifi_SDK_for_android_ICS_20120621.tar.gz │ └── Realtek_Wi-Fi_SDK_for_Android_ICS.pdf ├── document │ ├── HowTo_enable_driver_to_support_80211d.pdf │ ├──HowTo_enable_driver_to_support_WIFI_certification_test.pdf │ ├── HowTo_enable_the_power_saving_functionality.pdf │ ├── HowTo_support_more_VidPids.pdf │ ├── linux_dhcp_server_notes.txt │ ├── Quick_Start_Guide_for_Bridge.pdf │ ├──Quick_Start_Guide_for_Driver_Compilation_and_Installation.pdf │ ├── Quick_Start_Guide_for_SoftAP.pdf │ ├── Quick_Start_Guide_for_Station_Mode.pdf │ ├── Realtek_WiFi_concurrent_mode_Introduction.pdf │ ├── RTK_P2P_WFD_Programming_guide.pdf │ ├── SoftAP_Mode_features.pdf │ ├── Wireless_tools_porting_guide.pdf │ └── wpa_cli_with_wpa_supplicant.pdf ├── driver │ └──rtl8723A_WiFi_linux_v4.1.6_7336.20130426_CCC02.tar.gz // Realek RTL8723A Linux Wifi 驅(qū)動(dòng) ├── hardware_wps_pbc │ ├── Readme.txt │ └── sample.c ├── install.sh ├── mp_tools │ └── RTL8723A_MPDoc ├── readme.txt ├── ReleaseNotes.pdf ├──WiFi_Direct_User_Interface │ ├── Android.mk │ ├── install.sh │ ├── p2p_api_test_linux.c │ ├── p2p_test.h │ ├── p2p_ui_test_linux.c │ └── Start_Guide_P2P_User_Interface_Linux.pdf ├── wireless_tools │ └──wireless_tools.30.rtl.tar.gz //Linux下對無線網(wǎng)絡(luò)配置的工具，包括iwlist,iwpriv,iwconfig等 └──wpa_supplicant_hostapd ├── p2p_hostapd.conf ├── rtl_hostapd_2G.conf ├── rtl_hostapd_5G.conf ├── wpa_0_8.conf ├──wpa_supplicant_8_jb_4.1_rtw_r7281.20130424.tar.gz ├──wpa_supplicant_8_jb_4.2_rtw_r7279.20130424.tar.gz └──wpa_supplicant_hostapd-0.8_rtw_r7048.20130424.tar.gz
內(nèi)核配置 內(nèi)核編譯前確保Linux配置 # make menuconfig
使能WLAN網(wǎng)絡(luò)支持： [*] Networking support---> -*- Wireless --->
使能Wireless LAN設(shè)備驅(qū)動(dòng)： Device Drivers ---> [*] Network device support ---> [*] Wireless LAN --->
使能RealTekRTL8712U無線網(wǎng)卡驅(qū)動(dòng)： Device Drivers ---> [*] Staging drivers ---> <M> RealTek RTL8712U (RTL8192SU) Wireless LAN NICdriver 目的是打開CONFIG_WIRELESS_EXT=y和CONFIG_WEXT_PRIV=y
上述操作在內(nèi)核中使能下述CONFIG選項(xiàng)： CONFIG_WIRELESS=y CONFIG_WLAN=y CONFIG_WIRELESS_EXT=y CONFIG_WEXT_CORE=y CONFIG_WEXT_PROC=y CONFIG_WEXT_PRIV=y
使能USB Host支持： Device Drivers ---> [*] USB support ---> <*> Support for Host-side USB <*> EHCI HCD (USB 2.0) support
編譯內(nèi)核 根據(jù)上述內(nèi)核配置編譯內(nèi)核。
Wifi驅(qū)動(dòng)配置與編譯 解壓縮驅(qū)動(dòng)源碼：rtl8723A_WiFi_linux_v4.1.6_7336.20130426_CCC02.tar.gz 進(jìn)入驅(qū)動(dòng)源碼目錄： ├──autoconf_rtl8723a_sdio_linux.h ├──autoconf_rtl8723a_usb_linux.h ├── clean ├── core ├── hal ├── ifcfg-wlan0 ├── include ├── Kconfig ├──Kconfig_rtl8723a_sdio_linux ├──Kconfig_rtl8723a_usb_linux ├── make_drv ├── Makefile ├── os_dep ├── runwpa └── wlan0dhcp
修改Makefile,添加AT91平臺(tái)支持 @@-44,7 +44,7 @@ CONFIG_EXT_CLK = n CONFIG_FTP_PROTECT =n CONFIG_WOWLAN = n -CONFIG_PLATFORM_I386_PC= y +CONFIG_PLATFORM_I386_PC= n CONFIG_PLATFORM_ANDROID_X86= n CONFIG_PLATFORM_ARM_S3C2K4= n CONFIG_PLATFORM_ARM_PXA2XX= n @@-75,6 +75,7 @@ CONFIG_PLATFORM_ARM_SUN6I = n CONFIG_PLATFORM_ACTIONS_ATM702X= n CONFIG_PLATFORM_MN10300= n CONFIG_PLATFORM_ACTIONS_ATV5201= n +CONFIG_PLATFORM_ARM_AT91= y CONFIG_DRVEXT_MODULE= n @@-651,6 +652,14 @@ KVER := $(KERNEL_VER) KSRC:=$(CFGDIR)/../../kernel/linux-$(KERNEL_VER) endif +ifeq($(CONFIG_PLATFORM_ARM_AT91), y) +EXTRA_CFLAGS+= -DCONFIG_LITTLE_ENDIAN +ARCH:= arm +CROSS_COMPILE:= /usr/local/CodeSourcery/Sourcery_G++_Lite/bin/arm-none-eabi- +KSRC:= /media/android/liaops/miura/kernel +MODULE_NAME:= wlan +endif + ifneq($(USER_MODULE_NAME),) MODULE_NAME :=$(USER_MODULE_NAME) endif
修改autoconf_rtl8723a_usb_linux.h以使能STA+P2P并存模式： @@-50,7 +50,7 @@ #defineSUPPORT_HW_RFOFF_DETECTED -//#defineCONFIG_IOCTL_CFG80211 +#defineCONFIG_IOCTL_CFG80211 #ifdefCONFIG_PLATFORM_ARM_SUNxI #ifndef CONFIG_IOCTL_CFG80211 #define CONFIG_IOCTL_CFG80211 @@-59,7 +59,7 @@ #ifdefCONFIG_IOCTL_CFG80211 //#define RTW_USE_CFG80211_STA_EVENT /* Indecate new sta asoc throughcfg80211_new_sta */ -#define CONFIG_CFG80211_FORCE_COMPATIBLE_2_6_37_UNDER +//#define CONFIG_CFG80211_FORCE_COMPATIBLE_2_6_37_UNDER //#define CONFIG_DEBUG_CFG80211 #define CONFIG_SET_SCAN_DENY_TIMER #endif @@-86,7 +86,7 @@ //#define CONFIG_DBG_P2P #define CONFIG_P2P_PS -//#define CONFIG_P2P_IPS +#define CONFIG_P2P_IPS #endif // Added by Kurt20110511 @@-102,7 +102,7 @@ #defineCONFIG_LAYER2_ROAMING #defineCONFIG_LAYER2_ROAMING_RESUME -//#defineCONFIG_CONCURRENT_MODE +#defineCONFIG_CONCURRENT_MODE #ifdefCONFIG_CONCURRENT_MODE #define CONFIG_TSF_RESET_OFFLOAD // For 2 PORT TSF SYNC. //#define CONFIG_HWPORT_SWAP //Port0->Sec , Port1 -> Pri
編譯驅(qū)動(dòng) make KSRC=<內(nèi)核源代碼碼路徑>
當(dāng)前目錄下得到Wifi驅(qū)動(dòng)模塊：wlan.ko
編譯Android源代碼
編譯wireless_tools無線網(wǎng)絡(luò)管理工具 解壓縮wireless_tools.30.rtl.tar.gz到Android源代碼 external/目錄下 (1)tar zxvf wireless_tools.30.rtl.tar.gz (2)cp wireless_tools.30.rtl <ANDROID_SDK>/external/ (3)cd <ANDROID_SDK> (4)make iwconfig iwlist iwpriv
安裝Wifi驅(qū)動(dòng)模塊 將wlan.ko拷貝到Android文件系統(tǒng)out/target/product/sama5d3/system/lib/modules目錄下
制作Android根文件系統(tǒng)并燒寫到開發(fā)板
測試 啟動(dòng)后插入USB Wifi模塊 usb 1-2: newhigh-speed USB device number 2 using atmel-ehci usb 1-2: NewUSB device found, idVendor=0bda, idProduct=0724 usb 1-2: NewUSB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-2:Product: 802.11n WLAN Adapter usb 1-2:Manufacturer: Realtek usb 1-2:SerialNumber: 00e04c000001
加載模塊前 root@sama5d3:/ # netcfg eth0 UP 0.0.0.0/0 0x000010433a:1f:34:08:54:54 can0 DOWN 0.0.0.0/0 0x0000008000:00:00:00:00:00 sit0 DOWN 0.0.0.0/0 0x0000008000:00:00:00:00:00 lo UP 127.0.0.1/8 0x0000004900:00:00:00:00:00
加載模塊 root@sama5d3:/# insmod /system/lib/modules/wlan.ko usbcore:registered new interface driver rtl8723au
加載模塊后 root@sama5d3:/# netcfg wlan0 DOWN 0.0.0.0/0 0x00001002 00:02:72:3c:0c:c1 wlan1 DOWN 0.0.0.0/0 0x00001002 02:02:72:3c:0c:c1 eth0 UP 0.0.0.0/0 0x00001043 3a:1f:34:08:54:54 can0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00 sit0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00 lo UP 127.0.0.1/8 0x00000049 00:00:00:00:00:00
可以看到多了兩個(gè)接口wlan0和wlan1。
打開wlan0 root@sama5d3:/# netcfg wlan0 up IPv6:ADDRCONF(NETDEV_UP): wlan0: link is not ready RTL871X:nolinked power save enter
執(zhí)行命令iwlist wlan0 scanning,搜索可用的無線AP 部分結(jié)果如下： root@sama5d3:/# iwlist wlan0 scanning RTL871X:nolinked power save leave wlan0Scan completed : Cell 01 - Address: D8:15:0D:D9:1F:F0 ESSID:"Intest_Hardware" Protocol:IEEE 802.11bgn Mode:Master Frequency:2.412 GHz (Channel 1) Encryption key:on Bit Rates:300 Mb/s Extra:wpa_ie=dd160050f20101000050f20401000050f20401000050f202 IE: WPA Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK Extra:rsn_ie=30140100000fac040100000fac040100000fac020000 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown: DD180050F204104A00011010440001021049000600372A000120 Quality=0/100 Signal level=-74 dBm Cell 02 - Address: A8:57:4E:FC:4B:3E ESSID:"\xBE\xDE\xC3\xC0\xB9\xFA\xBC\xCA" Protocol:IEEE 802.11bgn Mode:Master Frequency:2.437 GHz (Channel 6) Encryption key:on Bit Rates:300 Mb/s Extra:wpa_ie=dd160050f20101000050f20401000050f20401000050f202 IE: WPA Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK Extra:rsn_ie=30140100000fac040100000fac040100000fac020000 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown:DD9B0050F204104A0001101044000102103B0001031047001000000000000010000000A8574EFC4B101021000754502D4C494E4B1023000A544C2D5744523333323010240003312E3010420003312E301054000800060050F20400011011001A576972656C65737320526F7574657220544C2D57445233333230100800020086103C000101104900140024E26002000101600000020001600100020001 Quality=0/100 Signal level=-71 dBm Cell 03 - Address: 1C:BD:B9:C7:84:98 ESSID:"hikvision" Protocol:IEEE 802.11bgn Mode:Master |
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