Android 2.2下实现Ethernet

Android源码本身是不支持Ethernet上网,主要因为它针对手机设计,而手机上一般不会带有RJ45模块,因此要想在Android上实现Ethernet功能就要增加Framework层和App层代码,工作量还是很大。还好网络上有基于上网本开发的开源项目android-x86,它已经实现了Ethernet功能,我们只要参考它的源码修改。下面将介绍下如何实现Ethernet功能:

 

1.linux驱动的修改

我所使用的RJ45芯片是MCS7830,linux kernel源码中已包含了它的驱动,只要在配置时选中它

make memuconfig:

[*] Network device support  --->

        USB Network Adapters  --->

            <*> Multi-purpose USB Networking Framework

                 <*>   MosChip MCS7830 based Ethernet adapters

 

2.Android源码的修改

下面只列出Android2.2需要修改的源码文件,包括所在的文件夹位置

frameworks/base/Android.mk frameworks/base/core/java/android/app/ContextImpl.java frameworks/base/core/java/android/content/Context.java frameworks/base/core/java/android/net/ConnectivityManager.java frameworks/base/core/java/android/provider/Settings.java frameworks/base/core/jni/Android.mk frameworks/base/core/jni/AndroidRuntime.cpp frameworks/base/core/jni/android_net_ethernet.cpp (增加) frameworks/base/core/res/res/drawable/connect_creating.png (增加) frameworks/base/core/res/res/drawable/connect_established.png (增加) frameworks/base/core/res/res/drawable/connect_no.png (增加) frameworks/base/core/res/res/values/arrays.xml frameworks/base/core/res/res/values/config.xml frameworks/base/ethernet/java/android/net/ethernet/EthernetDevInfo.aidl (增加) frameworks/base/ethernet/java/android/net/ethernet/EthernetDevInfo.java (增加) frameworks/base/ethernet/java/android/net/ethernet/EthernetManager.java (增加) frameworks/base/ethernet/java/android/net/ethernet/EthernetMonitor.java (增加) frameworks/base/ethernet/java/android/net/ethernet/EthernetNative.java (增加) frameworks/base/ethernet/java/android/net/ethernet/EthernetStateTracker.java (增加) frameworks/base/ethernet/java/android/net/ethernet/IEthernetManager.aidl (增加) frameworks/base/services/java/com/android/server/status/StatusBarPolicy.java frameworks/base/services/java/com/android/server/ConnectivityService.java frameworks/base/services/java/com/android/server/EthernetService.java (增加) frameworks/base/wifi/java/android/net/wifi/WifiStateTracker.java packages/apps/Settings/res/drawable-hdpi/ic_settings_ethernet.png (增加) packages/apps/Settings/res/drawable-mdpi/ic_settings_ethernet.png (增加) packages/apps/Settings/res/layout/eth_configure.xml (增加) packages/apps/Settings/res/values/strings.xml packages/apps/Settings/res/xml/ethernet_settings.xml (增加) packages/apps/Settings/res/xml/settings.xml packages/apps/Settings/src/com/android/settings/ethernet/EthernetConfigDialog.java (增加) packages/apps/Settings/src/com/android/settings/ethernet/EthernetEnabler.java (增加) packages/apps/Settings/src/com/android/settings/ethernet/EthernetLayer.java (增加) packages/apps/Settings/src/com/android/settings/EthernetSettings.java (增加) packages/apps/Settings/AndroidManifest.xml build/core/pathmap.mk

3.init.rc的修改

增加以下代码:

+ mkdir /data/misc/dhcp 0777 dhcp dhcp
+ chown dhcp dhcp /data/misc/dhcp

+service dhcpcd /system/bin/dhcpcd -o domain_name_servers -ABKL
+      disabled
+      oneshot


以上全完成后,在Setting中就可以看到Ethernet Setting的选项,RJ45接上网线就可以上网了。

(android-x86下需要修改的文件源码包,基于Android 2.2版本)下载地址在Linux公社的1号FTP服务器里,下载地址:

FTP地址:ftp://www.linuxidc.com

用户名:

密码:

在 2011年LinuxIDC.com\8月\Android 2.2下实现Ethernet

下载方法见这里

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