topic Re: wifi driver in i.MX Processors

wifi driver

Danial — Wed, 21 Mar 2012 01:35:01 GMT

The default wifi driver of the system is ar6000, but I want to use the 8686 device. How to configure the system? I have configured the kernel and the kernel can load 8686 drive corretly. I also modified the Boardconfig.mk , init.rc ,wifi.c In device/fsl/imx53_logo/Boardconfig.mk: #WIFI_DRIVER_MODULE_NAME := "ar6000" #WPA_SUPPLICANT_VERSION := VER_0_6_ATHEROS WPA_SUPPLICANT_VERSION := VER_0_6_X #BOARD_WLAN_ATHEROS_SDK := system/wlan/atheros/AR6kSDK #BOARD_WPA_SUPPLICANT_DRIVER := AR6000 BOARD_WLAN_CHIP_AR6102 := true BOARD_WLAN_CHIP_AR6003 := true BOARD_WPA_SUPPLICANT_DRIVER := WEXT # Select Wake on wireless mode for AR6003 suspend/resume policy BOARD_WLAN_PM_SUSPEND := 2 In the device/fsl/imx53_logo/Init.rc, I commented out the sentences. #service wpa_supplicant /system/bin/wlan_tool wpa_supplicant # socket wpa_wlan0 dgram 660 root wifi # disabled # oneshot #service wlan_tool /system/bin/wlan_tool # oneshot In the device/fsl/imx5x/init.rc, I modified some places. # give system access to wpa_supplicant.conf for backup and restore mkdir /system/etc/wifi 0770 wifi wifi chmod 0770 /system/etc/wifi chmod 0660 /system/etc/wifi/wpa_supplicant.conf chown wifi wifi /system/etc/wifi/wpa_supplicant.conf #wpa_supplicant control socket for android wifi.c (android private socket) mkdir /data/misc/wifi 0770 wifi wifi mkdir /data/misc/wifi/sockets 0770 wifi wifi chmod 0770 /data/misc/wifi chmod 0660 /data/misc/wifi/wpa_supplicant.conf chown wifi wifi /data/misc/wifi chown wifi wifi /data/misc/wifi/wpa_supplicant.conf service wpa_supplicant /system/bin/wpa_supplicant -dd -Dwext -iwlan0 -c /system/etc/wifi/wpa_supplicant.conf socket wpa_wlan0 dgram 660 wifi wifi group system wifi inet disabled oneshot In the hardware\libhardware_legacy\wifi\wifi.c, I modified some places. #else /* ATHENV */ #ifndef WIFI_DRIVER_MODULE_PATH #define WIFI_DRIVER_MODULE_PATH "/system/lib/modules/libertas_sdio.ko" #endif #ifndef WIFI_DRIVER_MODULE_NAME #define WIFI_DRIVER_MODULE_NAME "libertas_sdio" #endif #ifndef WIFI_DRIVER_MODULE_ARG #define WIFI_DRIVER_MODULE_ARG "" #endif #ifndef WIFI_FIRMWARE_LOADER #define WIFI_FIRMWARE_LOADER "" #endif #define WIFI_TEST_INTERFACE "wlan0" #endif In the external\wpa_supplicant_6\wpa_supplicant\wpa_supplicant.conf, I modified some place. ctrl_interface=wlan0 I think the system use the Android private socket, but I am not sure. After I run the system, the error come out. I have attached the log file. Thanks!

Re: wifi driver

Swamy — Thu, 05 Apr 2012 07:07:30 GMT

Hi Zhoudan,

I am facing similar issue. Can you share if you have found any solution.

Regards,

Swamy

Re: wifi driver

admin — Thu, 20 Sep 2012 09:58:37 GMT

Actually your unable to find the interface wlan0 (I am also facing the same problem).If anyone found the solution.

please help us out.

Thanks,

prannoy.

Re: wifi driver

Danial — Tue, 16 Oct 2012 02:04:50 GMT

移植wifi驱动MX53平台

配置内核支持8686wifi

选上Networking support->wireless->cfg80211 – wireless configuration API

选上Device Drivers->Network device support->Wireless LAN->Marvell 8xxx Libertas WLAN driver support->Marvell Libertas 8385/8686/8688 SDIO 802.11b/g cards

修改hardware\libhardware_legacy\wifi\wifi.c

//#define WIFI_TEST_INTERFACE "sta"

#define WIFI_TEST_INTERFACE "wlan0"

在rmmod函数中直接返回,如下代码:

static int rmmod(const char *modname)

{

int ret = -1;

int maxtry = 10;

return 0;

…...

}

配置wpa_supplicant的驱动Z:\myandroid\device\fsl\imx53_smd\BoardConfig.mk

#---------------------------------------------------------------

#WIFI_DRIVER_MODULE_NAME := "ar6000"

#WPA_SUPPLICANT_VERSION := VER_0_6_ATHEROS

#BOARD_WLAN_ATHEROS_SDK := system/wlan/atheros/AR6kSDK

#WPA_SUPPLICANT_VERSION := VER_0_6_ATHEROS

#BOARD_WPA_SUPPLICANT_DRIVER := AR6000

BOARD_WLAN_CHIP_AR6102 := false

BOARD_WLAN_CHIP_AR6003 := false

#BOARD_WPA_SUPPLICANT_DRIVER := WEXT

# Select Wake on wireless mode for AR6003 suspend/resume policy

#BOARD_WLAN_PM_SUSPEND := 2

WIFI_DRIVER_MODULE_NAME := "libertas_sdio"

WIFI_DRIVER_MODULE_PATH := "/system/lib/modules/libertas_sdio.ko"

BOARD_WIFI_LIBRARIES := true

BOARD_WPA_SUPPLICANT_DRIVER := WEXT

WPA_BUILD_SUPPLICANT := true

WPA_SUPPLICANT_VERSION := VER_0_5_X

#-----------------------------------------------------------------

修改wpa_supplicant.conf

把external/wpa_supplicant/wpa_supplicant.conf拷贝到/system/etc/wifi/目录下，
并把：ctrl_interface=DIR=/data/misc/wifi/wpa_supplicant GROUP=wifi
改为： ctrl_interface= /data/system/wpa_supplicant //这个一定要和IFACE_DIR对应并保证目录权限

配置路径和权限:\myandroid\device\fsl\imx5x\init.rc

# give system access to wpa_supplicant.conf for backup and restore

#--------------------------------------------

mkdir /system/etc/wifi 0777 wifi wifi

chmod 0777 /system/etc/wifi

chmod 0777 /system/etc/wifi/wpa_supplicant.conf

chown wifi wifi /system/etc/wifi/wpa_supplicant.conf

mkdir /data/misc/wifi 0777 wifi wifi

mkdir /data/misc/wifi/sockets 0777 wifi wifi

chmod 0777 /data/misc/wifi

chown wifi wifi /data/misc/wifi/wpa_supplicant.conf

chown wifi wifi /data/misc/wifi

chmod 0666 /data/misc/wifi/wpa_supplicant.conf

mkdir /data/system/wpa_supplicant

chmod 0777 /data/system/wpa_supplicant

chown wifi system /data/system/wpa_supplicant

#--------------------------------------------

# Prepare for wifi

mkdir /data/misc/dhcp 0770 dhcp dhcp

chown dhcp dhcp /data/misc/dhcp

setprop wifi.interface wlan0

setprop wlan.interface wlan0

修改\myandroid\device\fsl\imx53_smd\init.rc

注释掉原有的:

#service wpa_supplicant /system/bin/wlan_tool wpa_supplicant

# socket wpa_wlan0 dgram 660 root wifi

# disabled

# oneshot

#service wlan_tool /system/bin/wlan_tool

# oneshot

加入以下语句:
#------------------------------------------------------------------------------------------------------------------------

service wpa_supplicant /system/bin/wpa_supplicant -Dwext -iwlan0 -c /data/misc/wifi/wpa_supplicant.conf

socket wpa_wlan0 dgram 0666 wifi wifi

disabled

oneshot

service dhcpcd /system/bin/logwrapper /system/bin/dhcpcd -o domain_name_servers -ABKL

disabled

oneshot

group system dhcp

on property:init.svc.wpa_supplicant=stopped

stop dhcpcd

#------------------------------------------------------------------------------------------------------------------------

提供固件firmware

Android不使用标准的hotplug binary，WIFI需要的firmware要复制到/etc/firmware。或者复制到WIFI驱动指定的位置，然后WIFI驱动会自动加载.

在此把wifi模块提供的sd8686.bin sd8686_helper.bin放到/system/etc/firmware目录下。

This is the solution,I get my wifi worked successfully.

Re: wifi driver

phuongdangminh — Tue, 20 Nov 2012 07:35:36 GMT

Hello danzhou,

I've follow your guide but it didn't work. May I have some questions

1> What kernel linux which you're using ?

2> What is libertas firmware version ?

When turning on the WIFI, the wpa_supplicant said not support wext driver, have we to modify this driver ?

Many thanks for your help.

Re: wifi driver

phuongdangminh — Thu, 22 Nov 2012 08:25:27 GMT

Ok,

Here is my experiment, hope it's useful for everyone.

WIFI_TO_ANDROID - km233 - One-sentence summary of this page. - i.MX233 Development Kit - Google Project Hosting

Cheer.