Android tablete ek usb wi-fi ? (3. sayfa)

Android tablete ek usb wi-fi ? - Sayfa 3

cucuko · 2012-12-05T11:00:32.0000000+03:00

slm, tabletimin wi-fi düşük çekiyor extra bir usb wi-fi adaptör bağlamak mümkün mü ? Hangi marka android 4.0.3 sürümü ile uyumlu olabilir ?

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Realtek Wi-Fi SDK for Android ICS
ver. 2.1.0
Contents
Release History .............................................................................................................. 1
SDK packages ................................................................................................................ 1
Introduction .................................................................................................................... 2
1. Copy Necessary Files into SDK ............................................................................ 3
2. Platform Related Files............................................................................................ 3
2.1. BoardConfig.mk......................................................................................... 3
2.2. init.xxx.rc ................................................................................................... 5
2.3. device/ti/panda/device.mk ......................................................................... 5
3. System Resource Configurations ........................................................................... 5
4. libhardware_legacy ................................................................................................ 7
4.1. Include wifi_realtek.c into source files ...................................................... 7
5. Apply Realtek patch for NL80211 interface and WiFi-Direct solution ................. 7
5.1. Patch for wpa_supplicant_8 ....................................................................... 7
5.2. Patch for WifiP2pService.java ................................................................... 8
5.3. Patch for WifiP2pDevice.java .................................................................... 9
5.4. Patch for WirelessSettings.java ................................................................ 10
Release History
ver. 1.0.0 1. Support STA and SoftAP mode for Android 4.0 (ICS)
ver. 2.0.0 1. Support NL80211 interface
2. Support WiFi-Direct
ver. 2.1.0 1. Update patch for wpa_supplicant_8
2. Update patch for WifiP2pService.java
3. Update patch for WifiP2pDevice.java
SDK packages
hardware/realtek/
Folder to store config file, private code from Realtek.
device/ti/panda/BoardConfig.mk
device/ti/panda/init.omap4pandaboard.rc
device/ti/panda/device.mk
device/ti/panda/overlay/frameworks/base/core/res/res/values/config.xml
Reference codes for platform related files, which is retrieved from panda board
and has been patched with Realtek Wi-Fi SDK
hardware/libhardware_legacy/wifi/Android.mk
Reference codes for applying wifi_realtek.c
external/wpa_supplicant_8/src/drivers/driver_nl80211.c \
external/wpa_supplicant_8/src/p2p/p2p.c \
external/wpa_supplicant_8/src/p2p/p2p.h \
external/wpa_supplicant_8/src/p2p/p2p_group.c \
external/wpa_supplicant_8/hostapd/Android.mk \
external/wpa_supplicant_8/wpa_supplicant/Android.mk \
external/wpa_supplicant_8/wpa_supplicant/ctrl_iface.c \
external/wpa_supplicant_8/wpa_supplicant/events.c \
external/wpa_supplicant_8/wpa_supplicant/p2p_supplicant.c \
Reference code for apply Realtek patch for NL80211 interface and WiF-Direct
frameworks/base/wifi/java/android/net/wifi/p2p/WifiP2pDevice.java
frameworks/base/wifi/java/android/net/wifi/p2p/WifiP2pService.java
Reference code to patch for Realtek WiFi-Direct solution
packages/apps/Settings/src/com/android/settings/WirelessSettings.java
Reference code to enable WiFi-Direct Settings UI
Introduction
This document provides a simple guide to help engineers to apply Realtek Wi-Fi
solution onto their Android 4.0 (ICS) system. For now, we have supported the
following Wi-Fi functionality:
Standard STA mode
Portable Wi-Fi Hotspot(SoftAP mode)
WiFi-Direct
To port Realtek Wi-Fi driver onto Android platform, you can go through the
following guide with reference codes within our driver package's
realtek_wifi_SDK_for_android_ICS_20120217.tar.gz.
Because Android's SDK may differ from platform to platform, our reference
codes may not be applied on every platform without modifications. You should check
if our reference code is suitable for you to use.
1. Copy Necessary Files into SDK
You need to copy the following folder into your target Android ICS SDK folder:
hardware/realtek/
2. Platform Related Files
2.1. BoardConfig.mk
To apply Realtek Wi-Fi solution onto your Android ICS system, define the
following compile-time variables in BoardConfig.mk of your platform:
BOARD_WIFI_VENDOR := realtek
BOARD_WIFI_VENDOR := realtek
ifeq ($(BOARD_WIFI_VENDOR), realtek)
WPA_SUPPLICANT_VERSION := VER_0_8_X
BOARD_WPA_SUPPLICANT_DRIVER := NL80211
BOARD_WPA_SUPPLICANT_PRIVATE_LIB := lib_driver_cmd_rtl
BOARD_HOSTAPD_DRIVER := NL80211
BOARD_HOSTAPD_PRIVATE_LIB := lib_driver_cmd_rtl
BOARD_WLAN_DEVICE := rtl8191su
#BOARD_WLAN_DEVICE := rtl8192cu
#BOARD_WLAN_DEVICE := rtl8192du
#BOARD_WLAN_DEVICE := rtl8192ce
#BOARD_WLAN_DEVICE := rtl8192de
#BOARD_WLAN_DEVICE := rtl8723as
#BOARD_WLAN_DEVICE := rtl8723au
#BOARD_WLAN_DEVICE := rtl8188es
WIFI_DRIVER_MODULE_NAME := wlan
WIFI_DRIVER_MODULE_PATH := "/system/lib/modules/wlan.ko"
WIFI_DRIVER_MODULE_ARG := ""
WIFI_FIRMWARE_LOADER := ""
WIFI_DRIVER_FW_PATH_STA := ""
WIFI_DRIVER_FW_PATH_AP := ""
WIFI_DRIVER_FW_PATH_P2P := ""
WIFI_DRIVER_FW_PATH_PARAM := ""
endif
To distinguish and group the platform Wi-Fi device from products of other
companies, we define variable BOARD_WIFI_VENDOR as realtek. This is for
compile-time choices to be applied for Realtek Wi-Fi solutions.
WPA_SUPPLICANT_VERSION := VER_0_8_X
For Android ICS, please set WPA_SUPPLICANT_VERSION as VER_0_8_X to
use wpa_supplicant_8.
BOARD_WPA_SUPPLICANT_DRIVER := NL80211
BOARD_WPA_SUPPLICANT_PRIVATE_LIB := lib_driver_cmd_ rtl
BOARD_HOSTAPD_DRIVER := NL80211
BOARD_HOSTAPD_PRIVATE_LIB := lib_driver_cmd_rtl
We use NL80211 as the driver interface for wpa_supplicant and hostapd to
communicate with driver and provide lib_driver_cmd_rtl as the private processing
library.
BOARD_WLAN_DEVICE
Realtek provide a variety of Wi-Fi solutions to choose. For now,
BOARD_WLAN_DEVICE is not used for any purpose but we suggest setting this
variable for your Wi-Fi solution you used.
WIFI_DRIVER_MODULE_NAME
WIFI_DRIVER_MODULE_PATH
WIFI_DRIVER_MODULE_ARG
These three variables will be used in libhardware_legacy (wifi.c) to do insmod
and remmod. The value of WIFI_DRIVER_MODULE_NAME should match the
value of MODULE_NAME specified in our driver’s Makefile at compile-time. Please
refer to “Platform Setting Section in Detail” of:
document/Quick_Start_Guide_for_Driver_Compilation_and_Installation.doc
WIFI_FIRMWARE_LOADER
WIFI_DRIVER_FW_PATH_STA
WIFI_DRIVER_FW_PATH_AP
WIFI_DRIVER_FW_PATH_P2P
WIFI_DRIVER_FW_PATH_PARAM
Because our driver has FW embedded inside, and will automatically load FW at
NIC initialization process, there is no need to set these 5 variables, just keep them
empty.
2.2. init.xxx.rc
For WiFi to operate properly, we need wpa_supplicant deamon to be defined as
service inside init.xxx.rc. Please refer to the service definitions below:
2.3. device/ti/panda/device.mk
Add android.hardware.wifi.direct.xml
If you want to use WiFi-Direct functionality, please add the rule in the
PRODUCT_COPY_FILES variable in your device platform related file to copy the
permission definition file, frameworks/base/data/etc/android.hardware.wifi.direct.xml
to the system/etc/permissions/ folder of your system image. For example:
wifi.interface
To specify the wifi interface name in Android, a product property named
“wifi.interface” is used. For Realtek wifi driver, wifi interface name is assigned with
“wlan%d”. In general, you should set wifi.interface as “wlan0”. For example:
3. System Resource Configurations
We should set the following three resource configurations of your platform to
configure the network function and enable the corresponding UI interface. In general
you can set the following configurations in your platform dependent config file such
as:
device/ti/panda/overlay/frameworks/base/core/res/res/values/config.xml
Or the global config file:
frameworks/base/core/res/res/values/config.xml
PRODUCT_PROPERTY_OVERRIDES += \
wifi.interface=wlan0
PRODUCT_COPY_FILES += \
frameworks/base/data/etc/android.hardware.wifi.direct.xml:system/etc/permissions/android.hard
ware.wifi.direct.xml
service wpa_supplicant /system/bin/wpa_supplicant -Dnl80211 -iwlan0 -c/data/misc/wifi/wpa_supplicant.conf
socket wpa_wlan0 dgram 660 wifi wifi
group wifi inet
disabled
oneshot
networkAttributes
To define the system’s available network interfaces, we need to define interface
items in the networkAttributes resource configuration. For example:
radioAttributes
To define the system’s available network interfaces, we need to define interface
items in the networkAttributes resource configuration. For example:
config_tether_wifi_regexs
The interfaces set here are used as the interfaces for Wi-Fi LAN port. We use
'wlan0' by default when our Wi-Fi is set as softap mode. So it needs to set 'wlan0' here
for system to recognized 'wlan0' as Wi-Fi LAN port. For example:
config_tether_upstream_types
The connection types set here are used as the interfaces for WAN port to connect
to internet. Please mask the item 4 (TYPE_MOBILE_DUN) in global config file or
the Portable Wi-Fi Hostapd UI will not be shown. For example:
<string-array translatable="false" name="radioAttributes">
<item>"1,1"</item>
<item>"7,1"</item>
<item>"9,1"</item>
</string-array>
<string-array translatable="false" name="networkAttributes">
<item>"wifi,1,1,1,-1,true"</item>
<item>"bluetooth,7,7,0,-1,true"</item>
<item>"ethernet,9,9,2,-1,true"</item>
<item>"wifi_p2p,13,1,0,-1,true"</item>
</string-array>
<integer-array translatable="false" name="config_tether_upstream_types">
<item>1</item>

</integer-array>
<string-array translatable="false" name="config_tether_wifi_regexs">
<item>"wlan\\d"</item>
</string-array>
Or you could define another entry in your platform dependent config file to
override the global definition. For example in our reference code:
To know the definition and set other upstream connection types, please refer to
frameworks/base/core/java/android/net/ConnectivityManager.java.
4. libhardware_legacy
The libhardware_legacy library includes functionality for Wi-Fi to operate. We
have made modifications and extensions for our Wi-Fi solutions. To apply this, please
go through the following instructions:
4.1. Include wifi_realtek.c into source files
Modify hardware/libhardware_legacy/wifi/Android.mk to include wifi_realtek.c
instead of wifi.c into LOCAL_SRC_FILES. For example:
5. Apply Realtek patch for NL80211 interface and WiFi-Direct solution
5.1. Patch for wpa_supplicant_8
Replace the following file with our reference code into your SDK
external/wpa_supplicant_8 folder:
external\wpa_supplicant_8\hostapd\Android.mk
external\wpa_supplicant_8\src\drivers\driver_nl80211.c
external\wpa_supplicant_8\src\p2p\p2p.c
external\wpa_supplicant_8\src\p2p\p2p.h
external\wpa_supplicant_8\src\p2p\p2p_group.c
external\wpa_supplicant_8\wpa_supplicant\Android.mk
external\wpa_supplicant_8\wpa_supplicant\ctrl_iface.c
external\wpa_supplicant_8\wpa_supplicant\events.c
ifeq ($(BOARD_WIFI_VENDOR), realtek)
LOCAL_SRC_FILES += ../realtek/wlan/libhardware_legacy/wifi/wifi_realtek.c
else
LOCAL_SRC_FILES += wifi/wifi.c
endif
<integer-array translatable="false" name="config_tether_upstream_types">
<item>9</item>
</integer-array>
external\wpa_supplicant_8\wpa_supplicant\p2p_supplicant.c
5.2. Patch for WifiP2pService.java
Add or modify the following code segments of WifiP2pService.java. For the
specific line number and code segments, please reference our reference code:
frameworks/base/wifi/java/android/net/wifi/p2p/WifiP2pService.java
Line 487:
Line 973:
Line 1017:
…
…
break;
case WifiMonitor.NETWORK_DISCONNECTION_EVENT:
if (DBG) logd("Network connection lost");
sendMessage(WifiP2pManager.REMOVE_GROUP);
break;
case DhcpStateMachine.CMD_POST_DHCP_ACTION:
…
…
class P2pDisabledState extends State {
@Override
public void enter() {
if (DBG) logd(getName());
try {
mNwService.wifiFirmwareReload(mInterface, "STA");
} catch (Exception e) {
loge("Failed to reload sta firmware " + e);
}
}
…
…
…
}
Line 1060:
5.3. Patch for WifiP2pDevice.java
Add or modify the following code segment in WifiP2pDevice.java to fix the
string parsing bug. For the specific line number and code segments, please reference
our reference code:
frameworks/base/wifi/java/android/net/wifi/p2p/WifiP2pDevice.java
Line 307:
…
…
case WifiMonitor.P2P_PROV_DISC_PBC_REQ_EVENT:
if (mGroup.isGroupOwner())
notifyP2pProvDiscPbcRequest((WifiP2pDevice) message.obj);
break;
case WifiMonitor.P2P_PROV_DISC_ENTER_PIN_EVENT:
if (mGroup.isGroupOwner())
notifyP2pProvDiscPinRequest((WifiP2pDevice) message.obj);
break;
…
…
…
…
try {
mNwService.clearInterfaceAddresses(mGroup.getInterface());
mNwService.disableIpv6(mGroup.getInterface());
} catch (Exception e) {
loge("Failed to clear addresses or disable ipv6" + e);
}
…
…
5.4. Patch for WirelessSettings.java
Add or modify the following code segment in WifiP2pService.java to show
Wifi-Direct Setting UI. For the specific line number and code segments, please
reference our reference code:
packages/apps/Settings/src/com/android/settings/WirelessSettings.java
Line 158:
private String trimQuotes(String str) {
str = str.trim();
if (str.startsWith("'") && str.endsWith("'")) {
if(str.length()==1)
return new String();
return str.substring(1, str.length()-1);
}
return str;
}
if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_WIFI_DIRECT)) {
getPreferenceScreen().removePreference(wifiP2p);
} else {
mWifiP2pEnabler = new WifiP2pEnabler(activity, wifiP2p);
}
//getPreferenceScreen().removePreference(findPreference(KEY_WIFI_P2P_SETTINGS));

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