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Include WIFI to Gingerbread

swisstronics
Prodigy 205 points
Other Parts Discussed in Thread: WL1271

Hello I'm trying to include the WIFI module to the Gingerbread 2.3.4 on my Eval Board AM3517EVM. I'm using http://processors.wiki.ti.com/index.php/TI-Android-GingerBread-2.3.4-DevKit-2.1.1_PortingGuides. Now I have problems with the Linux Kernel settings. I can't get the combination of the kernel configuration as written in the PortingGuide with the menuconfig in the Linux 2.6.37.

  • Make sure the following options are not enabled in the Kernel:
   CONFIG_CFG80211
   CONFIG_LIB80211
   CONFIG_MAC80211

Else corresponding Wireless Compat driver modules will not build.

  • On the other hand following Config options should be enabled in Kernel:
   CONFIG_WIRELESS_EXT=y
   CONFIG_WEXT_CORE=y
   CONFIG_WEXT_PROC=y
   CONFIG_WEXT_PRIV=y

 Do I have to install the patch? I have all the files written in the Porting Guide: Android uses a modified wpa_supplicant (external/wpa_supplicant_6) daemon for wifi support which is controlled through a socket by hardware/libhardware_legacy/wifi/wifi.c (WiFiHW) that gets controlled from Android UI through android.net.wifi package from frameworks/base/wifi/java/android/net/wifi and it's corresponding JNI implementation in frameworks/base/core/jni/android_net_wifi_Wifi.cpp Higher level network management is done in frameworks/base/core/java/android/net.

And the hardware/ti/wlan/WL1271_compat

Thanks for your Help

  • TI__Genius 10210 points

    You need to ensure that you have enabled the required CONFIG_ options in kernel and added the necessary pinmux configuration in the kernel for your board file as described in our Porting Guide.

    The TI DevKit sources already incorporate the android source-level changes. This description is only provided for your information.

  • in reply to Vishveshwar Bhat
    Prodigy 205 points

    I only know the way to do the kernel Configuration with the menuconfig in the kernel directory. My problem is that if :e.g I disable the CONFIG_CFG80211 I do not have the possibility to choose something to get the CONFIG_WEXT_... set. If I do the config entries manually the linux instruction silentloadoldconfig is automatically called before build and the .kconfig is set back to the previous setting. Maybe the combination of features in the menuconfig does exist to get all the CONFIG_xxx set in the desired combination as written in the PortingGuide but have not found it by the corresponding on/off switches in the menuconfig.

    Thanks for your assistance 

  • in reply to swisstronics
    TI__Genius 10210 points

    We shall look into this and get back to you.

  • in reply to Vishveshwar Bhat
    TI__Genius 10210 points

    Can you try the following and see if this works for you?

    1. First enable CONFIG_WLAN as follows: Device Drivers-> Network device support -> Wireless LAN

    2. Then enable Networking support -> Wireless -> Wireless extensions sysfs files

    This should do set the necessary CONFIG_ options.