RTL8723BU-WiFi-BT模块移植(WiFi部分)

1、本次修改基于厂商提供的RTL8723BU_WiFi_linux_v4.3.16_14189.20150519_BTCOEX2015119-5844包下载链接：/detail/bhj1119/9761769一 修改记录：1.配置linux内核 (1)Networking support -Wireless下增加802.11 协议栈的支持- Wireless cfg80211 - wireless configuration API* nl80211 testmode command * enable developer warnings * cfg8

2、0211 regulatory debugging* enable powersave by default cfg80211 DebugFS entries use statically compiled regulatory rules database * cfg80211 wireless extensions compatibility * Wireless extensions sysfs files-*- Common routines for IEEE802.11 drivers lib80211 debugging messages * Allow reconnect whi

3、le already connected Generic IEEE 802.11 Networking Stack (mac80211) PID controller based rate control algorithm * Minstrel* Minstrel 802.11n support Default rate control algorithm (Minstrel) - * Enable mac80211 mesh networking (pre-802.11s) support * Enable LED triggers Export mac80211 internals in

4、 DebugFS Select mac80211 debugging features -(2) 配置Device Drivers -USB support - USB Wireless Device Management support 支持WIFI2.将RTL8723BU_WiFi_linux_v4.3.16_14189.20150519_BTCOEX2015119-5844/driver下的压缩包拷贝到ANDROID_SDK/kernel_imx/drivers/net/wireless下，解压，修改其Makefile，编译wifi驱动模块,修改内容如下：CONFIG_PLATFORM_

5、IMX6Q = yifeq ($(CONFIG_PLATFORM_IMX6Q), y)EXTRA_CFLAGS += -DCONFIG_LITTLE_ENDIANEXTRA_CFLAGS += -DCONFIG_IOCTL_CFG80211 -DRTW_USE_CFG80211_STA_EVENT -DCONFIG_PLATFORM_ANDROID -DCONFIG_ANDROID -DCONFIG_CONCURRENT_MODEARCH := armCROSS_COMPILE := XXX/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-ea

6、bi-KSRC := XXX/kernel_imx/MODULE_NAME := 8723buendif如果（1）中选项没有选上，会导致加载wifi模块时报如下错误：rtl8723bu: no symbol version for cfg80211_ready_on_channelrtl8723bu: Unknown symbol cfg80211_ready_on_channel (err -22)rtl8723bu: Unknown symbol odm_SwAntDetectInit (err 0)rtl8723bu: no symbol version for _ieee80211_g

7、et_channelrtl8723bu: Unknown symbol _ieee80211_get_channel (err -22)rtl8723bu: no symbol version for cfg80211_roamedrtl8723bu: Unknown symbol cfg80211_roamed (err -22)rtl8723bu: no symbol version for wiphy_registerrtl8723bu: Unknown symbol wiphy_register (err -22)原因就是：编译WiFi模块时会去KSRC所指的路径下找相应的库，若果相关

8、的编译选项没有选上会导致某些库缺失，从而导致编出来的WiFi模块不完整。上述是由于编译内核时内有勾选80211协议栈导致。3.用厂商提供的hardware/realtek 替换hardware/realtek4.用厂商提供的wpa_supplicant_8_kk_4.4_rtw_r12456.20141003替换ANDROID_SDK/extern/wpa_supplicant_8，并修改文件夹的名字为wpa_supplicant_8。5.hardware/libhardware_legacy/wifi/Android.mk修改内容如下：- Android.mk (版本 170)+ Andro

9、id.mk (工作副本) -49,15 +49,21 LOCAL_CFLAGS += -DWIFI_DRIVER_FW_PATH_PARAM=$(WIFI_DRIVER_FW_PATH_PARAM)endif-ifeq ($(BOARD_WLAN_DEVICE),UNITE)- LOCAL_C_INCLUDES += $(LOCAL_PATH)/././external/wpa_supplicant_ath/wpa_supplicant/src/common- LOCAL_SRC_FILES += wifi/wifi_unite.c-else ifeq ($(BOARD_WLAN_VENDOR

10、), INTEL)- LOCAL_SRC_FILES += wifi/wifi_intel.c- LOCAL_C_INCLUDES += $(LOCAL_PATH)/././external/wpa_supplicant_8/src/common+#ifeq ($(BOARD_WLAN_DEVICE),UNITE)+# LOCAL_C_INCLUDES += $(LOCAL_PATH)/././external/wpa_supplicant_ath/wpa_supplicant/src/common+# LOCAL_SRC_FILES += wifi/wifi_unite.c+#else if

11、eq ($(BOARD_WLAN_VENDOR), INTEL)+# LOCAL_SRC_FILES += wifi/wifi_intel.c+# LOCAL_C_INCLUDES += $(LOCAL_PATH)/././external/wpa_supplicant_8/src/common+#else+# LOCAL_SRC_FILES += wifi/wifi.c+# LOCAL_C_INCLUDES += $(LOCAL_PATH)/././external/wpa_supplicant_8/src/common+#endif+ifeq ($(BOARD_WIFI_VENDOR),

12、realtek)+LOCAL_SRC_FILES += ./realtek/wlan/libhardware_legacy/wifi/wifi_realtek.celse- LOCAL_SRC_FILES += wifi/wifi.c- LOCAL_C_INCLUDES += $(LOCAL_PATH)/././external/wpa_supplicant_8/src/common+LOCAL_SRC_FILES += wifi/wifi.cendif6.修改device/fsl/sabresd_6dq/BoardConfig.mk修改内容如下：- BoardConfig.mk (版本 17

13、0)+ BoardConfig.mk (工作副本) -26,6 +26,33 TARGET_BOOTLOADER_BOARD_NAME := SABRESDPRODUCT_MODEL := SABRESD-MX6DQ+BOARD_WIFI_VENDOR := realtek+ifeq ($(BOARD_WIFI_VENDOR), realtek)+WPA_SUPPLICANT_VERSION := VER_0_8_X+BOARD_WPA_SUPPLICANT_DRIVER := NL80211+CONFIG_DRIVER_WEXT :=y+BOARD_WPA_SUPPLICANT_PRIVAT

14、E_LIB := lib_driver_cmd_rtl+BOARD_HOSTAPD_DRIVER := NL80211+BOARD_HOSTAPD_PRIVATE_LIB := lib_driver_cmd_rtl+#BOARD_WLAN_DEVICE := rtl8192cu+#BOARD_WLAN_DEVICE := rtl8192du+#BOARD_WLAN_DEVICE := rtl8192ce+#BOARD_WLAN_DEVICE := rtl8192de+#BOARD_WLAN_DEVICE := rtl8723as+#BOARD_WLAN_DEVICE := rtl8723au+

15、#BOARD_WLAN_DEVICE := rtl8189es+#BOARD_WLAN_DEVICE := rtl8723bs+BOARD_WLAN_DEVICE := rtl8723bu+WIFI_DRIVER_MODULE_NAME := 8723bu+WIFI_DRIVER_MODULE_PATH := /system/lib/modules/8723bu.ko+WIFI_DRIVER_MODULE_ARG := ifname=wlan0 if2name=p2p0+WIFI_FIRMWARE_LOADER := +WIFI_DRIVER_FW_PATH_STA := +WIFI_DRIV

16、ER_FW_PATH_AP := +WIFI_DRIVER_FW_PATH_P2P := +WIFI_DRIVER_FW_PATH_PARAM := +else# UNITE is a virtual device support both atheros and realtek wifi(ar6103 and rtl8723as)BOARD_WLAN_DEVICE := UNITEWPA_SUPPLICANT_VERSION := VER_0_8_UNITE -39,6 +66,7 BOARD_WPA_SUPPLICANT_PRIVATE_LIB_QCOM := lib_driver_cmd

17、_qcwcnBOARD_HOSTAPD_PRIVATE_LIB_RTL := lib_driver_cmd_rtlBOARD_WPA_SUPPLICANT_PRIVATE_LIB_RTL := lib_driver_cmd_rtl+endif#for intel vendorifeq ($(BOARD_WLAN_VENDOR),INTEL)BOARD_HOSTAPD_PRIVATE_LIB := private_lib_driver_cmd -118,3 +146,4 fs_use untrusted_app.te genfs_contexts上述步骤完成后，到根目录下执行make 编译整个系

18、统。二 测试1.安装cfg80211.ko，8723bu.ko依赖此模块，缺省会报如下错误：8723bu: Unknown symbol cfg80211_ready_on_channel (err 0)8723bu: Unknown symbol _ieee80211_get_channel (err 0)8723bu: Unknown symbol cfg80211_roamed (err 0)8723bu: Unknown symbol wiphy_register (err 0)8723bu: Unknown symbol cfg80211_disconnected (err 0)87

19、23bu: Unknown symbol cfg80211_new_sta (err 0)8723bu: Unknown symbol cfg80211_connect_result (err 0)8723bu: Unknown symbol cfg80211_inform_bss_frame (err 0)2.安装8723bu.ko模块，两个模块都安装好之后，执行netcfg，会看到多出wlan0和p2p0设备节点，他们是8723bu驱动创建出来的，放到sys/class/net/下。lo UP /8 0x00000049 00:00:00:00:00:00can0 DOW

20、N /0 0x00000080 00:00:00:00:00:00can1 DOWN /0 0x00000080 00:00:00:00:00:00eth0 UP /0 0x00001043 1e:ed:19:27:1a:b3wlan0 DOWN /0 0x00001002 7c:c7:09:30:c5:4dp2p0 DOWN /0 0x00001002 7e:c7:09:30:c5:4d3.执行ifconfig wlan0 up，打开wlan04.执行system/bin/wpa_supplicant -Dnl80211

21、-iwlan0 -c/etc/wifi/wpa_supplicant.conf，启动wpa_supplicant进程。启动过程报如下错误：E/wpa_supplicant( 3251): mkdirctrl_interface=wlan0: Permission deniedE/wpa_supplicant( 3251): Failed to initialize control interface wlan0.E/wpa_supplicant( 3251): You may have another wpa_supplicant process already running or the

22、file wasE/wpa_supplicant( 3251): left by an unclean termination of wpa_supplicant in which case you will needE/wpa_supplicant( 3251): to manually remove this file before starting wpa_supplicant again.错误原因：wpa_supplicant进程运行时的配置文件wpa_supplicant.conf文件中的ctrl_interface的路径不对，没有匹配成功，导致进程启动失败。原来ctrl_inter

23、face的路径是/var/run/wpa_supplicant，把ctrl_interface改成/data/misc/wifi/wpa_supplicant就可以了。ctrl_interface在哪里？在工程下的external/wpa_supplicant_8/wpa_supplicant/wpa_supplicant.conf中。深入分析：wpa_supplicant_init_iface函数分析init_iface初始化的第一个工作是解析运行时配置文件。其中，wpa_s-confname的值为“/data/misc/wifi/wpa_supplicant.conf”,解析函数是wpa_

24、config_read。wpa_s-ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); if (wpa_s-ctrl_iface = NULL) wpa_printf(MSG_ERROR, Failed to initialize control interface %s.n You may have another wpa_supplicant process already running or the file wasn left by an unclean termination of wpa_supplicant in which

25、case you will needn to manually remove this file before starting wpa_supplicant again.n, wpa_s-conf-ctrl_interface); return -1; 如果是linux系统，可能没有wpa_supplicant工具，可参考wpa_supplicant-2.6交叉编译，移植此工具。5.执行system/bin/wpa_cli -p/data/misc/wifi/wpa_supplicant，配置并连接wifi热点。Could not connect to wpa_supplicant: wla

26、n0 - re-tryingwpa_cli v2.0-devel-4.4.2_rtw_r12456.20141003Copyright (c) 2004-2013, Jouni Malinen and contributorsThis software may be distributed under the terms of the BSD license.See README for more details.Selected interface wlan0Interactive mode1） scanOKCTRL-EVENT-STATE-CHANGE id=-1 state=3 BSSI

27、D=00:00:00:00:00:00 SSID=CTRL-EVENT-SCAN-RESULTSWPS-AP-AVAILABLECTRL-EVENT-STATE-CHANGE id=-1 state=2 BSSID=00:00:00:00:00:00 SSID=2） scan_resultsbssid / frequency / signal level / flags / ssid78:eb:14:bd:f6:9e 2412 -58 WPA-PSK-CCMPWPA2-PSK-CCMPESS B1412bc:67:1c:41:29:4d 2437 -65 WPA-PSK-CCMP+TKIPWP

28、A2-PSK-CCMP+TKIPWPSESS systec-ciscoe0:05:c5:23:fc:52 2452 -71 WPA-PSK-CCMP+TKIPWPA2-PSK-CCMP+TKIPWPSESS30:fc:68:0b:c9:f6 2437 -71 WPA-PSK-CCMPWPA2-PSK-CCMPESS gsdqec:26:ca:53:ea:f1 2462 -72 WPA-PSK-CCMPWPA2-PSK-CCMPWPSESS TP-LINK_EAF100:1f:f3:bf:d0:6f 2462 -73 WPA2-PSK-CCMPESS tcs appled4:ee:07:29:9

29、b:4a 2442 -73 WPA-PSK-CCMPWPA2-PSK-CCMPESS Cherry&Filippo24:69:68:16:a9:1e 2462 -74 WPA-PSK-CCMPWPA2-PSK-CCMPESS xe6xb2x83xe7x95x89fc:d7:33:8d:0a:36 2412 -74 WPA-PSK-CCMPWPA2-PSK-CCMPESS dangyuanweixinb0:c0:90:3a:24:a3 2422 -74 WPA2-PSK-CCMPESS 360xe8xa1x8cxe8xbdxa6xe8xaexb0xe5xbdx95xe4xbbxaa-A3c8:3

30、a:35:1f:5f:88 2422 -80 WPA-PSK-CCMPWPA2-PSK-CCMPESS wangzihaoc8:3a:35:06:a9:b0 2452 -82 WPA-PSK-CCMPESS Tenda_06A9B000:3a:99:9b:9b:40 2417 -45 WEPESS systec-AP00:0c:43:30:50:a0 2437 -51 ESS Wii-Link_3050A008:10:78:e1:27:a5 2412 -74 ESS NETCORE_27A53） add_network04） set_network 0 ssid systec-ciscoOK5

31、） set_network 0 psk XXXOK6） select_network 0OKCTRL-EVENT-STATE-CHANGE id=0 state=3 BSSID=00:00:00:00:00:00 SSID=systec-ciscoCTRL-EVENT-SCAN-RESULTSWPS-AP-AVAILABLETrying to associate with bc:67:1c:41:29:4d (SSID=systec-cisco freq=2437 MHz)CTRL-EVENT-STATE-CHANGE id=0 state=5 BSSID=00:00:00:00:00:00

32、SSID=systec-ciscoCTRL-EVENT-STATE-CHANGE id=0 state=6 BSSID=00:00:00:00:00:00 SSID=systec-ciscoAssociated with bc:67:1c:41:29:4dCTRL-EVENT-STATE-CHANGE id=0 state=7 BSSID=bc:67:1c:41:29:4d SSID=systec-ciscoCTRL-EVENT-STATE-CHANGE id=0 state=8 BSSID=bc:67:1c:41:29:4d SSID=systec-ciscoWPA: Key negotia

33、tion completed with bc:67:1c:41:29:4d PTK=CCMP GTK=TKIPCTRL-EVENT-CONNECTED - Connection to bc:67:1c:41:29:4d completed (auth) id=0 id_str=CTRL-EVENT-STATE-CHANGE id=0 state=9 BSSID=bc:67:1c:41:29:4d SSID=systec-cisco7）enable_network 0OK查看链接状态： statusbssid=bc:67:1c:41:29:4dssid=systec-ciscoid=0mode=stationpairwise_cipher=CCMPgroup_cipher=TKIPkey_mgmt=WPA2-PSKwpa_state=COMPLETEDp2p_device_address=7c:c7:09:30:c5:4dad