i.MX Processors中的主题 Re: wifi binding on imx6sl evk based board

wifi binding on imx6sl evk based board

zoranl — Wed, 23 Apr 2014 20:00:14 GMT

We are having problem with board that is based on imx6sl evk and rtl8192cu (chip on wifi module is RTL8188CTV). The wifi module is on USB interface.
We integrated rtl8192cu driver from another package, we used manual supplied by realtek to integrate there driver into android (from zip file RTL8188C_8192C_USB_linux_v4.0.2_9000.20130911.zip pdf file \android_ref_codes_JB_4.2\Realtek_Wi-Fi_SDK_for_Android_JB_4_2.pdf).

The driver is build as part of the kernel, not module. We used there's wpa_supplicant, that came with realteks package (wpa_supplicant_8_jb_4.2_rtw_r8680.20130821.tar.gz).

Package is from this site: http://www.realtek.com/downloads/downloadsView.aspx?Langid=2&PFid=48&Level=5&Conn=4&ProdID=277&DownTypeID=3&GetDown=false&Downloads=true

RTL8192CU for Linux/Android

Firmware is from this link: rtl819x - Linux Wireless

Using serial interface terminal, we tested the wlan0 interface, we can bring it up, and get ip number:

root@evk_6sl:/ # cat /sys/kernel/debug/usb/devices

T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 0

D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1

P: Vendor=0bda ProdID=8176 Rev= 2.00

S: Manufacturer=Realtek

S: Product=802.11n WLAN Adapter

S: SerialNumber=00e04c000001

C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA

I:* If#= 0 Alt= 0 #EPs= 4 Cls=ff(vend.) Sub=ff Prot=ff Driver=rtl8192cu

E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E: Ad=84(I) Atr=03(Int.) MxPS= 64 Ivl=125us

root@evk_6sl:/ # dhcpcd wlan0

dhcpcd[2859]: version 5.5.6 start+871x_drv - drv_open, bup=0

===> FirmwareDownload91C() fw:Rtl819XFwImageArray_UMC_B

FirmwareDownload92C accquire FW from embedded image

fw_ver=v80, fw_subver=0, sig=0x88c0

fw download ok!

Set RF Chip ID to RF_6052 and RF type to 1T1R.

IQK:Start!!!

Path A IQK Success!!

IQK: final_candidate is 0

IQK: RegE94=103 RegE9C=f RegEA4=fb RegEAC=5 RegEB4=0 RegEBC=0 RegEC4=0 RegECC=0

Path A IQ Calibration Success !

pdmpriv->TxPowerTrackControl = 1

MAC Address from REG_MACID = 44:33:4c:8b:f2:10

rtl8192cu_hal_init in 610ms

MAC Address = 44:33:4c:8b:f2:10

-871x_drv - drv_open, bup=1

ADDRCONF(NETDEV_UP): wlan0: link is not ready

dhcpcd[2859]: wlan0: checking for 169.254.169.141

dhcpcd[2859]: wlan0: using IPv4LL address 169.254.169.141

dhcpcd[2859]: forked to background, child pid 2885

root@evk_6sl:/ # ifconfig wlan0

wlan0: ip 169.254.169.141 mask 255.255.0.0 flags [up broadcast running multicast]

root@evk_6sl:/ # netcfg

lo UP 127.0.0.1/8 0x00000049 00:00:00:00:00:00

eth0 UP 192.168.0.152/24 0x00001043 24:80:00:00:00:00

tunl0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00

sit0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00

ip6tnl0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00

wlan0 UP 169.254.169.141/16 0x00001043 44:33:4c:8b:f2:10

We need to use dhcpcd wlan0 command, the suggested init.rs service doesn't work, but thats not the problem.

Our problem is that binding from android ui and kernel isnt working.

When we tried to turn on wifi, from Settings>Wifi in Android UI, the slider button can move and change to On state, but the message on display "To see available networks, turn WiFi on" is still there.

in logcat we get:

D/WifiService( 2363): setWifiEnabled: true pid=2363, uid=1000

After that we can't move slider back.

When we exit that menu and return, the slider is back in Off state.

Using wifi from shell, we can get all the other wifi networks:

root@evk_6sl:/data # ./xbin/iwlist wlan0 scanning

survey done event(18)

wlan0 Scan completed :

Cell 01 - Address: BC:AE:C5:C4:3B:F7

ESSID:"Automatic"

Protocol:IEEE 802.11bg

Mode:Master

Frequency:2.412 GHz (Channel 1)

Encryption key:on

Bit Rates:54 Mb/s

Quality=59/100 Signal level=-95 dBm

Cell 02 - Address: 68:7F:74:01:C6:BE

ESSID:""

Protocol:IEEE 802.11bg

Mode:Master

Frequency:2.432 GHz (Channel 5)

Encryption key:off

Bit Rates:54 Mb/s

Quality=100/100 Signal level=-55 dBm

Cell 03 - Address: 20:AA:4B:1B:A1:7C

ESSID:"TEST"

Protocol:IEEE 802.11bgn

Mode:Master

Frequency:2.437 GHz (Channel 6)

Encryption key:off

Bit Rates:144 Mb/s

IE: Unknown: DD750050F204104A0001101044000102103B0001031047001020AA4B1BA17A20AA4B1BA17A022AC107102100104C696E6B73797320627920436973636F102300085752543136304E4C1024000776312E302E303210420001351054000800060050F2040001101100085752543136304E4C100800020084

Quality=100/100 Signal level=-71 dBm

Cell 04 - Address: 00:1D:7E:BD:10:05

ESSID:"alt02"

Protocol:IEEE 802.11bg

Mode:Master

Frequency:2.457 GHz (Channel 10)

Encryption key:on

Bit Rates:54 Mb/s

Extra:wpa_ie=dd180050f20101000050f20201000050f20201000050f2020c00

IE: WPA Version 1

Group Cipher : TKIP

Pairwise Ciphers (1) : TKIP

Authentication Suites (1) : PSK

Quality=100/100 Signal level=-74 dBm

Cell 05 - Address: 00:18:F8:3B:F1:0A

ESSID:"alt1"

Protocol:IEEE 802.11bg

Mode:Master

Frequency:2.462 GHz (Channel 11)

Encryption key:on

Bit Rates:54 Mb/s

Quality=101/100 Signal level=-95 dBm

We also added permissions for wifi in android ..

Please, ask me if you need more details, I kept track of all the changed done in the android and kernel.

Logcat with DBG for classes in wifi is also available.

Does anyone have any idea about this problem? Could you help us, please? We wasted a lot of time on this.

Re: wifi binding on imx6sl evk based board

igorpadykov — Fri, 25 Apr 2014 09:36:45 GMT

Hi, Zoran

what Android was used, is it Freescale Android (link below) ?

IMX6_JB43_110_ANDROID_SOURCE_BSP : i.MX 6Quad, i.MX 6Dual, i.MX 6DualLite,

i.MX 6Solo and i.MX 6Sololite Android jb4.3_1.1.0 0 BSP, Documentation and Source Code

i.MX 6SoloLite Evaluation Kit

Also very often WiFi modules have different firmware, so different drivers are needed, though module

name may the same. Have you contacted Realtek for updated version of driver for this specific module ?

Re: Re: wifi binding on imx6sl evk based board

zoranl — Fri, 25 Apr 2014 13:06:02 GMT

Hello,

Thank you for answering,

Yeah, I wanted to add that info. It was JB4.3 and the Realtek porting for rtl8192cu driver is for JB4.2.

Some more porting work was needed to be done that wasnt in the manual.

Also we are currently working on nfs, there shouldnt be some permissions problem.

We put every all firmware files in the root fs (nfs) just in case.

ls /system/etc/firmware/rtlwifi/ -l

-rw------- root root 11216 2014-04-23 13:10 rtl8188efw.bin

-rw------- root root 13904 2014-04-23 13:10 rtl8188eufw.bin

-rw------- root root 13540 2014-04-23 13:10 rtl8192cfw.bin

-rw------- root root 14818 2014-04-23 13:10 rtl8192cfwU.bin

-rw------- root root 14800 2014-04-23 13:10 rtl8192cfwU_B.bin

-rw------- root root 16014 2014-04-23 13:10 rtl8192cufw.bin

-rw------- root root 16116 2014-04-23 13:10 rtl8192cufw_A.bin

-rw------- root root 16096 2014-04-23 13:10 rtl8192cufw_B.bin

-rw------- root root 16116 2014-04-23 13:10 rtl8192cufw_TMSC.bin

-rw------- root root 22978 2014-04-23 13:10 rtl8192defw.bin

-rw------- root root 32754 2014-04-23 13:10 rtl8192eefw.bin

-rw------- root root 80208 2014-04-23 13:10 rtl8192sefw.bin

-rw------- root root 122328 2014-04-23 13:10 rtl8712u.bin

-rw------- root root 22172 2014-04-23 13:10 rtl8723aufw_A.bin

-rw------- root root 24118 2014-04-23 13:10 rtl8723aufw_B.bin

-rw------- root root 19200 2014-04-23 13:10 rtl8723aufw_B_NoBT.bin

-rw------- root root 11662 2014-04-23 13:10 rtl8723fw.bin

-rw------- root root 22996 2014-04-23 13:10 rtl8723fw_B.bin

-rw------- root root 29198 2014-04-23 13:10 rtl8821aefw.bin

but driver source it askes for:

(kernel_imx/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c file)

MODULE_FIRMWARE("rtlwifi/rtl8192cufw.bin");

also, driver is build in the kernel, from boot:

rtl8192cu driver version=v4.0.2_9000.20130911

build time: Apr 24 2014 13:14:21

usbcore: registered new interface driver rtl8192cu

USB_SPEED_HIGH

CHIP TYPE: RTL8188C_8192C

android_work: sent uevent USB_STATE=CONNECTED

Netfilter messages via NETLINK v0.30.

android_work: sent uevent USB_STATE=DISCONNECTED

Chip Version ID: VERSION_NORMAL_UMC_CHIP_88C_B_CUT.

nf_conntrack version 0.5.0 (7141 buckets, 28564 max)

RF_Type is 3!!

ctnetlink v0.93: registering with nfnetlink.

NF_TPROXY: Transparent proxy support initialized, version 4.1.0

...

readAdapterInfo_8192CU(): REPLACEMENT = 0

<==== ReadAdapterInfo8192C in 570 ms

rtw_register_early_suspend

rtw_macaddr_cfg MAC Address = 44:33:4c:8b:f2:10

bDriverStopped:1, bSurpriseRemoved:0, bup:0, hw_init_completed:0

This shouldn't be a problem:

-rw------- root root

because system handles driver. But I will check out this, more.

Other thing is that wpa_supplicant isnt not called from init script, there is no trace of it in logcat.

in init.freescale.rs file:

service wpa_supplicant /system/bin/wpa_supplicant -iwlan0 -Dnl80211 \

-c/data/misc/wifi/wpa_supplicant.conf

socket wpa_wlan0 dgram 660 wifi wifi

class late_start

disabled

oneshot

service p2p_supplicant /system/bin/wpa_supplicant \

-ip2p0 -Dnl80211 -c/data/misc/wifi/p2p_supplicant.conf -N \

-iwlan0 -Dnl80211 -c/data/misc/wifi/wpa_supplicant.conf

class late_start

disabled

oneshot

service rtw_suppl_con /system/bin/rtl_wpa_supplicant \

-ip2p0 -Dnl80211 -c/data/misc/wifi/p2p_supplicant.conf -e/data/misc/wifi/entropy.bin -N \

-iwlan0 -Dnl80211 -c/data/misc/wifi/wpa_supplicant.conf

class late_start

socket wpa_wlan0 dgram 660 wifi wifi

disabled

oneshot

service rtw_suppl /system/bin/wpa_supplicant -iwlan0 -Dnl80211a \

-c/data/misc/wifi/wpa_supplicant.conf

socket wpa_wlan0 dgram 660 wifi wifi

class main

disabled

oneshot

service dhcpcd_wlan0 /system/bin/dhcpcd -aABKL

class main

disabled

oneshot

service dhcpcd_p2p /system/bin/dhcpcd -aABKL

class main

disabled

oneshot

service iprenew_wlan0 /system/bin/dhcpcd -n

class main

disabled

oneshot

service iprenew_p2p /system/bin/dhcpcd -n

class main

disabled

oneshot

in init.rs file:

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

mkdir /data/misc/wifi 0770 wifi wifi

chmod 0770 /data/misc/wifi

mkdir /data/misc/wifi/sockets 0770 wifi wifi

mkdir /data/misc/wifi/wpa_supplicant 0770 wifi wifi

mkdir /data/misc/wifi/p2p_supplicant 0770 wifi wifi

mkdir /data/misc/dhcp 0770 dhcp dhcp

chown dhcp dhcp /data/misc/dhcp

chmod 0660 /data/misc/wifi/wpa_supplicant.conf

chmod 0660 /data/misc/wifi/p2p_supplicant.conf

chmod 0775 /system/etc/dhcpcd/dhcpcd-run-hooks

######for nfs maybe some permissions problems (didn't work)

# chown system wifi /data/misc/wifi

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

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

If we manual start dhcp for wlan0, we can get wifi ip address (in my previous post).

When we manually call wpa_supplicant:

wpa_supplicant -iwlan0 -c/system/etc/wifi/wpa_supplicant.conf -B

we get this in logcat:

--------- beginning of /dev/log/main

I/wpa_supplicant( 2938): Successfully initialized wpa_supplicant

E/wpa_supplicant( 2938): nl80211: Could not add multicast membership for scan events: -2 (No such file or directory)

E/wpa_supplicant( 2938): Failed to initialize driver 'nl80211'

In board config file:

(./device/fsl/evk_6sl/BoardConfig.mk file)

BOARD_WPA_SUPPLICANT_DRIVER := NL80211

BOARD_HOSTAPD_DRIVER := NL80211

in both

./external/wpa_supplicant_8/wpa_supplicant/android.config

and

./external/wpa_supplicant_8/hostapd/android.config

CONFIG_DRIVER_NL80211=y

We didn't contacted Realtek yet, we believe that we have some binding problems with driver and android ui.

Also, slider button for wifi in the Settings menu in the Android ui seamed not to be connected to Settings>Wifi button.

I can move button in Settings menu, to On state. And the enter the Settings>Wi-Fi and the button is in Off state.

Exiting Settings>Wi-Fi menu and entering it again, it shows that button is back in Off state.

Toggling wifi button to Off state isn't possible, after it was set to On state by us.

After moving the wifi button slider to Off state we get this in logcat:

D/WifiService( 2401): setWifiEnabled: true pid=2561, uid=1000

E/WifiService( 2401): Invoking mWifiStateMachine.setWifiEnabled

in system/core/include/private/android_filesystem_config.h file we can see uid's

#define AID_SYSTEM 1000 /* system server */

#define AID_WIFI 1010 /* wifi subsystem */

Do we need to register platform driver callbacks, but this is usb module, it shouldn't need that?

Is it some nfs permission related issue with wifi?

So, what do you think?

Re: Re: wifi binding on imx6sl evk based board

zoranl — Fri, 25 Apr 2014 13:37:12 GMT

building the driver as module also doesn't work ..

we are pretty sure that it is to android binding with driver.

we tried three different drivers for rtl8192cu.

root@evk_6sl:/ # insmod /system/lib/modules/cfg80211_realtek.ko

cfg80211: Calling CRDA to update world regulatory domain

root@evk_6sl:/ # insmod /system/lib/modules/8192cu.ko

rtl8192cu driver version=v4.0.2_9000.20130911

build time: Apr 25 2014 15:18:54

usb_endpoint_descriptor(0):

bLength=7

bDescriptorType=5

bEndpointAddress=81

wMaxPacketSize=200

bInterval=0

RT_usb_endpoint_is_bulk_in = 1

usb_endpoint_descriptor(1):

bLength=7

bDescriptorType=5

bEndpointAddress=2

wMaxPacketSize=200

bInterval=0

RT_usb_endpoint_is_bulk_out = 2

usb_endpoint_descriptor(2):

bLength=7

bDescriptorType=5

bEndpointAddress=3

wMaxPacketSize=200

bInterval=0

RT_usb_endpoint_is_bulk_out = 3

usb_endpoint_descriptor(3):

bLength=7

bDescriptorType=5

bEndpointAddress=84

wMaxPacketSize=40

bInterval=1

RT_usb_endpoint_is_int_in = 4, Interval = 1

nr_endpoint=4, in_num=2, out_num=2

USB_SPEED_HIGH

CHIP TYPE: RTL8188C_8192C

Chip Version ID: VERSION_NORMAL_UMC_CHIP_88C_B_CUT.

RF_Type is 3!!

EEPROM type is E-FUSE

====> ReadAdapterInfo8192C

Boot from EFUSE, Autoload OK !

EEPROMVID = 0x0bda

EEPROMPID = 0x8176

EEPROMCustomerID : 0x00

EEPROMSubCustomerID: 0x00

RT_CustomerID: 0x00

_ReadMACAddress MAC Address from EFUSE = 44:33:4c:8b:f2:10

EEPROMRegulatory = 0x0

_ReadBoardType(0)

BT Coexistance = disable

mlmepriv.ChannelPlan = 0x08

_ReadPSSetting...bHWPwrPindetect(0)-bHWPowerdown(10) ,bSupportRemoteWakeup(0)

### PS params=> power_mgnt(0),usbss_enable(0) ###

### AntDivCfg(0)

readAdapterInfo_8192CU(): REPLACEMENT = 0

<==== ReadAdapterInfo8192C in 180 ms

rtw_wdev_alloc(padapter=da5f7000)

rtw_register_early_suspend

rtw_macaddr_cfg MAC Address = 44:33:4c:8b:f2:10

bDriverStopped:1, bSurpriseRemoved:0, bup:0, hw_init_completed:0

rtw_wdev_alloc(padapter=db8e7000)

Chip Version ID: VERSION_NORMAL_UMC_CHIP_88C_B_CUT.

RF_Type is 3!!

_rtw_drv_register_netdev, MAC Address (if1) = 44:33:4c:8b:f2:10

_rtw_drv_register_netdev, MAC Address (if2) = 46:33:4c:8b:f2:10

usbcore: registered new interface driver rtl8192cu

here is this kernel build config file:

CONFIG_WLAN=y

CONFIG_WIFI_CONTROL_FUNC=y

CONFIG_HOSTAP=y

CONFIG_CFG80211=m

CONFIG_NL80211_TESTMODE=y

CONFIG_CFG80211_REG_DEBUG=y

CONFIG_CFG80211_DEFAULT_PS=y

CONFIG_CFG80211_DEBUGFS=y

CONFIG_CFG80211_WEXT=y

CONFIG_LIB80211=y

CONFIG_LIB80211_CRYPT_WEP=y

CONFIG_LIB80211_CRYPT_CCMP=y

CONFIG_LIB80211_CRYPT_TKIP=y

CONFIG_CFG80211_ALLOW_RECONNECT=y

CONFIG_MAC80211=m

CONFIG_MAC80211_HAS_RC=y

CONFIG_MAC80211_RC_MINSTREL=y

CONFIG_MAC80211_RC_MINSTREL_HT=y

CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y

CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"

CONFIG_MAC80211_MESH=y

CONFIG_RTL8192CU=m

root@evk_6sl:/ # lsmod

8192cu 674910 0 - Live 0x00000000

cfg80211 155527 1 8192cu, Live 0x00000000

before that driver was build as part of kernel:

CONFIG_RTL8192CU=y

Re: wifi binding on imx6sl evk based board

igorpadykov — Tue, 06 May 2014 07:34:26 GMT

Hi Zoran, I got advice from our expert:

I had been reading about this issue and also i read the description from the client and seem

there's some missing configuration which the client could try.

First of all try to set BOARD_WPA_SUPPLICANT_DRIVER to WEXT in the Android BSP.

Also you need to provide a proper wpa configuration file for your device.

For more details check this reference:

PaNiC Random Rant (or how we used to call it: .plan): Porting WiFi drivers to Android

Hope this helps

Re: wifi binding on imx6sl evk based board

zoranl — Tue, 06 May 2014 21:24:30 GMT

Yep, I tried this link.

In manual provided with rtl wifi driver, it states to use new nl80211 interface.

BoardConfig.mk

BOARD_WPA_SUPPLICANT_DRIVER=NL80211

Problem is that Wifi slider switch cant be moved, but nothing happens, so some binding or some permissions are problem. This is done in nfs.

When slider is moved to On position in logcat we get this:

D/WifiService( 2401): setWifiEnabled: true pid=2561, uid=1000

E/WifiService( 2401): Invoking mWifiStateMachine.setWifiEnabled

there should be more data or some error or permission staff for wifi, after this.

wpa_supplicant doesnt start automatically, but it is in init.freescale.rc script. It can start manually with nl80211 driver.

WEXT, I will try this again, thank you. I am not sure it will work, i dont think the driver is problem. I can scan and get all networks in area, using shell.

Re: wifi binding on imx6sl evk based board

robertmclean — Tue, 27 May 2014 20:46:10 GMT

We have a similar setup and are having the same problems. Right down to the same bogus IP address reported by netconfig after dhcpcd seems to believe it got an address from the DHCP server on my Access Point.

Has there been any activity on this?

Re: wifi binding on imx6sl evk based board

zoranl — Wed, 28 May 2014 08:37:06 GMT

Yes, we manage to get wifi working. Here are info's in more detail, so if anybody else has problem ...

We build driver as part of the kernel:

vim kernel_imx/arch/arm/configs/imx6s_{yourdevice}_android_defconfig

CONFIG_CFG80211=y

CONFIG_MAC80211_MESH=y

CONFIG_MAC80211=y

CONFIG_HOSTAP=y

CONFIG_RTL8192CU=y

CONFIG_RTLWIFI=y

CONFIG_RTL8192C_COMMON=y

#CONFIG_RTL8723AS=m

CONFIG_USB_USBNET=y

CONFIG_NET_RADIO=y

vim device/fsl/{yourdevice}/BoardConfig.mk

BOARD_WIFI_VENDOR := realtek

WPA_SUPPLICANT_VERSION := VER_0_8_X

CONFIG_DRIVER_NL80211 := true

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 := rtl8192cu

WIFI_DRIVER_MODULE_NAME := "wlan0"

WIFI_DRIVER_MODULE_PATH := ""

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 := ""

We disabled p2p, since we dont need it:

vim device/fsl/imx6/{yourboard}.mk

PRODUCT_COPY_FILES += \

#frameworks/native/data/etc/android.hardware.wifi.direct.xml:system/etc/permissions/android.hardware.wifi.direct.xml

rm out/target/product/{yourboard}/system/etc/permissions/android.hardware.wifi.direct.xml

or just remount system partition:

root@{yourboard}:/ # mount -o remount, rw /system;

and remove xml:

root@{yourboard}:/ # rm /system/etc/permissions/android.hardware.wifi.direct.xml

edit:

root@{yourboard}:/ # busybox vi system/etc/permissions/required_hardware.xml

vim device/fsl/{yourboard}/required_hardware.xml

vim out/target/product/{yourboard}/system/etc/permissions/required_hardware.xml

<!--

-->

If you use it as module, you will need to add it also in PRODUCT_COPY_FILES

You need to correct init scripts, leave just this lines:

(this is from: http://blog.linuxconsulting.ro/2010/04/porting-wifi-drivers-to-android.html )

You can do it directly to out folder:

vim out/target/product/{yourboard}/root/init.rc

or/and (rebuild the whole system):

vim device/fsl/imx6/imx6.mk

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

setprop wifi.interface wlan0

setprop wlan.driver.status "ok"

#setprop wifi.ap.interface wlan0

#and also remove this lines:

# mkdir /data/system/wpa_supplicant 0771 wifi wifi

# chmod 0771 /data/system/wpa_supplicant

# symlink /data/misc/wifi/wpa_supplicant /data/system/wpa_supplicant

you can read it in that blog link, about unix/android standard socket setup.

vim out/target/product/{yourboard}/root/init.freescale.rc

or/and

vim device/fsl/{yourboard}/init.rc

#this is the only supplicant service and dhcpcd service for wifi that we use:

service rtw_suppl /system/bin/wpa_supplicant -dd -iwlan0 -Dnl80211 \

-c/data/misc/wifi/wpa_supplicant.conf

socket wpa_wlan0 dgram 660 wifi wifi

class main

disabled

oneshot

service dhcpcd_wlan0 /system/bin/dhcpcd -aABKL

class main

disabled

oneshot

service iprenew_wlan0 /system/bin/dhcpcd -n

class main

disabled

oneshot

To keep it clean (it doesnt effect wifi):

vim device/fsl/imx6/imx6.mk

PRODUCT_PACKAGES += \

rtw_suppl \

We needed to make a little change in wifi_realtek.c since our jb is 4.3:

vim hardware/realtek/wlan/libhardware_legacy/wifi/wifi_realtek.c

int wifi_start_supplicant(int p2p_supported)

wifi_stop_supplicant(p2p_supported);

….

int wifi_stop_supplicant(int p2p_supported){

char supp_status[PROPERTY_VALUE_MAX] = {'\0'};

int count = 50; /* wait at most 5 seconds for completion */

if (p2p_supported) {

property_get("wifi.supplicant", supplicant_name, P2P_SUPPLICANT_NAME);

snprintf(supplicant_prop_name, PROPERTY_KEY_MAX, P2P_PROP_NAME, supplicant_name);

} else {

property_get("wifi.supplicant", supplicant_name, SUPPLICANT_NAME);

snprintf(supplicant_prop_name, PROPERTY_KEY_MAX, SUPP_PROP_NAME, supplicant_name);

}

Our problem was wrong supplicant name in prop setup. And, when wifi starts it first stops supplicant, and it wasn’t able to transfer that info through system. It was quite fun tracking this problem.

vim ./frameworks/base/wifi/java/android/net/wifi/WifiStateMachine.java

mWifiNative.killSupplicant(mP2pSupported);

if(mWifiNative.startSupplicant(mP2pSupported)) {

setWifiState(WIFI_STATE_ENABLING);

if (DBG) log("Supplicant start successful");

mWifiMonitor.startMonitoring();

transitionTo(mSupplicantStartingState);

} else {

loge("Failed to start supplicant!!");

}

Here are more info:

root@{yourdevice}:/ # cat /data/misc/wifi/wpa_supplicant.conf

ctrl_interface=wlan0

update_config=1

device_name={yourdevice}

manufacturer=Freescale

model_name={YOURDEVICE}

model_number={YOURDEVICE}

serial_number=

device_type=10-0050F204-5

config_methods=physical_display virtual_push_button

network={

ssid="XXXXX"

key_mgmt=NONE

priority=1

}

and it started with:

root@{yourdevice}:/ # cat system/etc/wifi/wpa_supplicant.conf

update_config=1

ctrl_interface=wlan0

eapol_version=1

ap_scan=1

fast_reauth=1

permissions:

root@{yourdevice}:/ # ls -l /data/misc/wifi

-rw-rw---- system wifi 21 2014-05-27 12:39 entropy.bin

drwxrwx--- wifi wifi 2014-05-27 12:39 sockets

-rw------- system system 33 2014-05-27 12:39 softap.conf

-rw-rw---- wifi wifi 272 2014-05-27 12:39 wpa_supplicant.conf

root@{yourboard}:/ # ls -l /data/misc/

drwxr-s--- system shell 2014-05-27 12:39 adb

drwxrwx--- bluetooth net_bt_stack 2014-05-27 12:39 bluedroid

drwxrwx--- system system 2014-05-27 12:39 bluetooth

drwxrwx--- dhcp dhcp 2014-05-27 12:39 dhcp

drwxrwx--x system system 2014-05-27 12:39 keychain

drwx------ keystore keystore 2014-05-27 12:39 keystore

drwx------ media media 2014-05-27 12:39 media

drwxrwx--- system radio 2014-05-27 12:39 radio

drwxrwx--- system radio 2014-05-27 12:39 sms

drwx------ system system 2014-05-27 12:39 systemkeys

drwxrwx--- system vpn 2014-05-27 12:39 vpn

drwxrwx--- wifi wifi 2014-05-27 12:39 wifi

drwxrwxr-x system system 2014-05-27 12:39 zoneinfo

root@{yourboard}:/ # ls -l /system/etc/wifi

-rw-rw---- wifi wifi 77 2014-05-27 12:39 wpa_supplicant.conf

root@{yourboard}:/ # ps | grep wpa

wifi 2555 1 3104 1876 c0103edc 401a4448 S /system/bin/wpa_supplicant

root@{yourboard}:/ # cat system/etc/permissions/platform.xml | grep -i wifi

root@{yourboard}:/ # cat system/etc/permissions/required_hardware.xml | grep wifi

root@{yourboard}:/ # getprop | grep wifi

[net.tcp.buffersize.wifi]: [524288,1048576,2097152,262144,524288,1048576]

[ro.wifi.channels]: []

[wifi.interface]: [wlan0]

root@{yourboard}:/ # getprop | grep wlan

[dhcp.wlan0.dns1]: [192.168.1.1]

[dhcp.wlan0.dns2]: []

[dhcp.wlan0.dns3]: []

[dhcp.wlan0.dns4]: []

[dhcp.wlan0.domain]: []

[dhcp.wlan0.gateway]: [192.168.1.1]

[dhcp.wlan0.ipaddress]: [192.168.1.118]

[dhcp.wlan0.leasetime]: [86400]

[dhcp.wlan0.mask]: [255.255.255.0]

[dhcp.wlan0.pid]: [2689]

[dhcp.wlan0.reason]: [REBOOT]

[dhcp.wlan0.result]: [ok]

[dhcp.wlan0.server]: [192.168.1.1]

[dhcp.wlan0.vendorInfo]: []

[init.svc.dhcpcd_wlan0]: [running]

[wifi.interface]: [wlan0]

[wlan.driver.status]: [ok]

[wlan.interface]: [wlan0]

root@{yourboard}:/ # getprop | grep suppl

[init.svc.rtw_suppl]: [running]

root@{yourboard}:/ # cat /sys/kernel/debug/usb/devices

T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 0

D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1

P: Vendor=0bda ProdID=8176 Rev= 2.00

S: Manufacturer=Realtek

S: Product=802.11n WLAN Adapter

S: SerialNumber=00e04c000001

C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA

I:* If#= 0 Alt= 0 #EPs= 4 Cls=ff(vend.) Sub=ff Prot=ff Driver=rtl8192cu

E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

E: Ad=84(I) Atr=03(Int.) MxPS= 64 Ivl=125us

root@{yourboard}:/ # cat /sys/bus/usb/devices/2-1/product

802.11n WLAN Adapter

Useful commands:

disable wifi:

root@{yourboard}:/ # svc wifi disable

enable wifi:

root@{yourboard}:/ # svc wifi enable

open wifi settings panel:

root@{yourboard}:/ # am start -a android.intent.action.MAIN -n com.android.settings/.wifi.WifiSettings

manually starting supplicant with debug:

root@{yourboard}:/ # wpa_supplicant -Dnl80211 -iwlan0 -c/data/misc/wifi/wpa_supplicant.conf -dd -B

root@{yourboard}:/ # netcfg wlan0 up/down/dhcp

root@{yourboard}:/ # wpa_cli

> status

bssid=20:aa:4b:1b:a1:7c

ssid=ECTEST

id=0

mode=station

pairwise_cipher=NONE

group_cipher=NONE

key_mgmt=NONE

wpa_state=COMPLETED

ip_address=192.168.1.118

p2p_device_address=44:34:4c:8b:f2:10

address=44:34:4c:8b:f2:10

<3>CTRL-EVENT-STATE-CHANGE id=0 state=9 BSSID=20:aa:4b:1b:a1:7c SSID=ECTEST

<3>CTRL-EVENT-CONNECTED - connection to 20:aa:4b:1b:a1:7c completed (reauth) [id=0 id_str=]

> scan

cfg80211_rtw_scan(wlan0)

> no packet in tx packet buffer (0)

survey done event(14) band:0 for wlan0

<3>CTRL-EVENT-SCAN-RESULTS

> scan_results

bssid / frequency / signal level / flags / ssid

20:aa:1b:1b:a1:7c 2437 -74 [WPS][ESS] ECTEST

00:1d:3e:bd:10:05 2457 -85 [WPA-PSK-TKIP][ESS] net02

68:7f:74:03:c6:be 2432 -59 [ESS] \x00\x00\x00\x00

c8:23:73:3f:05:71 2462 -66 [ESS] Nick's router. Hands off.

root@{yourboard}:/ # ifconfig wlan0

wlan0: ip 192.168.1.118 mask 255.255.255.0 flags [up broadcast running multicast]

root@{yourboard}:/ # dhcpcd wlan0

dhcpcd[3373]: version 5.5.6 starting

dhcpcd[3373]: wlan0: rebinding lease of 192.168.1.118

dhcpcd[3373]: wlan0: acknowledged 192.168.1.118 from 192.168.1.1

dhcpcd[3373]: wlan0: leased 192.168.1.118 for 86400 seconds

dhcpcd[3373]: forked to background, child pid 3405

root@{yourboard}:/ # netcfg

lo UP 127.0.0.1/8 0x00000049 00:00:00:00:00:00

eth0 UP 192.168.0.152/24 0x00001043 24:80:00:00:00:00

tunl0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00

sit0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00

ip6tnl0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00

wlan0 UP 192.168.1.118/24 0x00001043 44:34:4c:8b:f2:10

wlan1 DOWN 0.0.0.0/0 0x00001002 46:34:4c:8b:f2:10

Good luck with it and please let me know if you need more info.

problem/solution:

if you get this problem:

E/wpa_supplicant( 3159): Could not set interface wlan0 flags (UP): Unknown error 132

solution:

missing rfkill, error 132 means "operation not possible due to RFkill"

vim kernel_imx/arch/arm/mach-mx6/board-mx6sl_{yourboard}.c

static int mx6sl_shd_bt_power_change(int status){return 0;}

static struct platform_device mxc_bt_rfkill = {

.name = "mxc_bt_rfkill",

};

static struct imx_bt_rfkill_platform_data mxc_bt_rfkill_data = {

.power_change = mx6sl_shd_bt_power_change,

};

/* init function */

static void __init {yourboard}_init(void){

...

mxc_register_device(&mxc_bt_rfkill, &mxc_bt_rfkill_data);

}

problem:

E/WifiHW ( 2488): Unable to open connection to supplicant on "/data/system/wpa_supplicant/wlan0": No such file or directory

solution:

setup correctly in init.rc and init.freescale.rc scripts wifi and wpa_supplicant permissions and services.

Re: wifi binding on imx6sl evk based board

ranganathtm — Tue, 18 Nov 2014 10:31:16 GMT

Hi All,

I am working to bring up RealTeck USB wifi dongel on android 4.3 and kernel 3.0.35 below are steps I followed :

1) I am building drivers as modules, copying them to /system/lib/modules/ and after that I added below lines in init.rc before wpa_supplicant service start.

insmod /system/lib/modules/cfg80211.ko

insmod /system/lib/modules/mac80211.ko

insmod /system/lib/modules/rtlwifi.ko

insmod /system/lib/modules/rtl8192c-common.ko

insmod /system/lib/modules/rtl8192cu.ko

2)wlan0 interface is creating successfully in /sys/class/net/wlan0.

3) After that I try to run below commands :

root@sabresd_6dq:wpa_supplicant -Dnl80211 -iwlan0 -c/data/misc/wifi/wpa_supplicant.conf -dd -B ---> success

root@sabresd_6dq: wpa_cli ----> Able to scan the devices form command line .

But if I try to do from application I am getting below errors:

E/WifiHW ( 2514): Unable to open connection to supplicant on "/data/system/wpa_supplicant/wlan0": Connection refused

D/BluetoothAdapter( 2755): 1101306992: getState() : mService = null. Returning STATE_OFF

I/wpa_supplicant( 3163): Successfully initialized wpa_supplicant

I/wpa_supplicant( 3163): rfkill: Cannot open RFKILL control device

E/wpa_supplicant( 3163): nl80211: Could not configure driver to use managed mode

E/wpa_supplicant( 3163): Could not read interface p2p0 flags: No such device

E/wpa_supplicant( 3163): p2p0: Failed to initialize driver interface

kindly help me to solve issues.

Thanks In Advance,

Ranganath TM

Re: wifi binding on imx6sl evk based board

zoranl — Tue, 18 Nov 2014 10:48:03 GMT

Hello Ranganath,

You need to run wpa_supplicant as service (in init.rc or init.xxxxx.rc script).

Do you need rf kill ?

We removed it completely from our android system.

BR,

Zoran

Re: wifi binding on imx6sl evk based board

ranganathtm — Tue, 18 Nov 2014 11:18:06 GMT

Hi Zoran,

Thanks for reply,

I am running wpa_supplicant in init.freescale.rc and at boot time I am getting below error :

D/NetworkManagementService( 2501): enabling bandwidth control

I/wpa_supplicant( 2591): Successfully initialized wpa_supplicant

I/wpa_supplicant( 2591): rfkill: Cannot open RFKILL control device

E/wpa_supplicant( 2591): nl80211: Could not configure driver to use managed mode

E/wpa_supplicant( 2591): Could not read interface p2p0 flags: No such device

E/wpa_supplicant( 2591): p2p0: Failed to initialize driver interface

E/WifiStateMachine( 2501): Failed to start supplicant!

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=131144

D/WifiStateMachine( 2501): processMsg: InitialState

D/WifiStateMachine( 2501): processMsg: DefaultState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=131085

D/WifiStateMachine( 2501): processMsg: InitialState

D/WifiStateMachine( 2501): processMsg: DefaultState

D/WifiStateMachine( 2501): handleMessage: X

D/WifiStateMachine( 2501): handleMessage: E msg.what=131149

D/WifiStateMachine( 2501): processMsg: InitialState

D/WifiStateMachine( 2501): processMsg: DefaultState

D/WifiStateMachine( 2501): setSuspendOptimizations: 2 true

D/WifiStateMachine( 2501): mSuspendOptNeedsDisabled 0

D/WifiStateMachine( 2501): handleMessage: X

Note : When I run ps | grep wpa : result is nothing and wpa_supplicant is not running.

But it works fine for me from command line

Thanks And Regards,

Ranganath TM

Re: wifi binding on imx6sl evk based board

zoranl — Tue, 18 Nov 2014 11:48:45 GMT

Are the service name and the name in the interface file same?

vim hardware/realtek/wlan/libhardware_legacy/wifi/wifi_realtek.c

static const char SUPPLICANT_NAME[] = "rtw_suppl"; /* without p2p concurrent */

and

in init.rc or init.xxxxx.rc script

service rtw_suppl /system/bin/wpa_supplicant -dd -iwlan0 -Dnl80211 \

-c/data/misc/wifi/wpa_supplicant.conf

socket wpa_wlan0 dgram 660 wifi wifi

class main

disabled

oneshot

You could add ALOGE to wifi_start_supplicant function, to get more debug data.

p2p is another service and interface.

Are the modules loaded ok, after booting?

Is the insert mod in the right place (you have on early-init, on boot, on fs), so maybe to make it as part of kernel, not modules, for start, to eliminate that.

BR,

Zoran

Re: wifi binding on imx6sl evk based board

ranganathtm — Tue, 18 Nov 2014 12:27:41 GMT

Hi Zoran,

Thanks for reply,

1) Yes services names are same inside init.freescale.rc and wifi_realtek.c, kindly find below :

static const char P2P_SUPPLICANT_NAME_REALTEK[] = "rtw_suppl_con"; /* p2p concurrent */

service rtw_suppl_con /system/bin/rtl_wpa_supplicant \

-iwlan0 -Dnl80211 -c/data/misc/wifi/wpa_supplicant.conf

class late_start

socket wpa_wlan0 dgram 660 wifi wifi

disabled

oneshot

2) I added logs inside function wifi_start_supplicant function and it pass below condition which give confidence supplicant is running,

if (pi != NULL) {

__system_property_read(pi, NULL, supp_status);

if (strcmp(supp_status, "running") == 0) {

ALOGE("TMR supplicant running success");

return 0;

}

3) Yes the modules are loading after boot in init.rc. Below is the result of lsmod,

rtl8192cu 91079 0 - Live 0x00000000

rtl8192c_common 54246 1 rtl8192cu, Live 0x00000000

rtlwifi 88904 1 rtl8192cu, Live 0x00000000

mac80211 164669 3 rtl8192cu,rtl8192c_common,rtlwifi, Live 0x00000000

cfg80211 149736 2 rtlwifi,mac80211, Live 0x00000000

4)But it fails in wifi_connect_on_socket_path function inside condition

ctrl_conn[index] = wpa_ctrl_open(path1);

if (ctrl_conn[index] == NULL) {

ALOGE("TMR wifi_connect_on_socket_path inside if");

ALOGE("Unable to open connection to supplicant on \"%s\": %s",

path, strerror(errno));

return -1;

}

By throwing error E/WifiHW ( 2514): Unable to open connection to supplicant on "/data/system/wpa_supplicant/wlan0": Connection refused.

please help me to resolve issue.

Thanks In Advance,

Ranganath TM

Re: wifi binding on imx6sl evk based board

zoranl — Tue, 18 Nov 2014 13:42:31 GMT

This is P2P supplicant.

static const char P2P_SUPPLICANT_NAME_REALTEK[] = "rtw_suppl_con"; /* p2p concurrent */

static const char SUPPLICANT_NAME[] = "rtw_suppl"; /* without p2p concurrent */

Do you have rtw_suppl running on system?

I only have primary interface, not p2p (we dont need it)

root@shd_6sl:/ # ps | grep supp

wifi 2915 1 3108 1856 c00fdb8c 40191448 S /system/bin/wpa_supplicant

root@shd_6sl:/ # getprop |grep suppl

[init.svc.rtw_suppl]: [running]

Do you have this file in android fs:

/data/system/wpa_supplicant/wlan0 ?

I dont think this is correct path.

What is your wpa conf file, after you start wifi?

Mine is:

root@shd_6sl:/ # cat /data/misc/wifi/wpa_supplicant.conf

update_config=1

ctrl_interface=wlan0

eapol_version=1

ap_scan=1

fast_reauth=1

/* PRIMARY refers to the connection on the primary interface

* SECONDARY refers to an optional connection on a p2p interface */

Did you made modification so that jni (android_net_wifi_Wifi.cpp) can interface this driver?

vim frameworks/base/core/jni/android_net_wifi_Wifi.cpp

static jboolean android_net_wifi_killSupplicant(JNIEnv* env, jobject, jboolean p2pSupported)

{

return (jboolean)(::wifi_stop_supplicant(p2pSupported) == 0);

}

In 4.3 wifi_stop_supplicant function has argument:

int wifi_stop_supplicant(int p2p_supported);

also we have to add this (and some debug log):

vim hardware/realtek/wlan/libhardware_legacy/wifi/wifi_realtek.c

int wifi_stop_supplicant(int p2p_supported) {

.......

if (p2p_supported) {

property_get("wifi.supplicant", supplicant_name, P2P_SUPPLICANT_NAME);

snprintf(supplicant_prop_name, PROPERTY_KEY_MAX, P2P_PROP_NAME, supplicant_name);

ALOGE("p2p_supported wifi.supplicant=%s\n",supplicant_name);

} else {

property_get("wifi.supplicant", supplicant_name, SUPPLICANT_NAME);

snprintf(supplicant_prop_name, PROPERTY_KEY_MAX, SUPP_PROP_NAME, supplicant_name);

ALOGE("wifi.supplicant=%s\n",supplicant_name);

}

If you do not use modules for rtl wifi, remember to add return 0; in wifi_realtek.c functions:

insmod,rmmod,load_driver,wifi_load_driver,unload_driver,wifi_unload_driver.

BR,

Zoran

Re: wifi binding on imx6sl evk based board

ranganathtm — Wed, 19 Nov 2014 09:49:37 GMT

Hi Zoran,

sorry for late reply,

when I run below command I am getting Permission denied issue where to change permission,

root@sabresd_6dq:/data/system # wpa_supplicant -Dnl80211 -iwlan0 -c/data/misc/wifi/wpa_supplicant.conf -dd -B

rtl8192cu: MAC auto ON okay!

rtl8192cu: Tx queue select: 0x05

rtl8192c: Loading firmware file rtlwifi/rtl8192cufw.bin

ADDRCONF(NETDEV_UP): wlan0: link is not ready

mkdir[ctrl_interface]: Permission denied

I tried my mounting /system and /data partition as rw in fstab.freescale

Thanks And Regards,

Ranganath TM

Re: wifi binding on imx6sl evk based board

zoranl — Wed, 19 Nov 2014 10:03:04 GMT

Hi Ranganath,

In init.rc file, you have to setup correct permission, group and owner:

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

Check this two folders and files in them:

/system/etc/wifi

and

/data/misc/wifi

BR,

Zoran

Re: wifi binding on imx6sl evk based board

ranganathtm — Wed, 19 Nov 2014 10:18:13 GMT

Hi Zoran,

I executed the permissions give by you in command line, and below are the permissions of

ls -l /system/etc/wifi/

-rw-rw---- wifi wifi 132 2014-11-19 09:19 wpa_supplicant.conf

ls -l /data/misc/wifi/ <

drwxrwx--- wifi wifi 1970-01-01 00:00 sockets

-rw------- system system 33 1970-01-02 00:00 softap.conf

drwxrwx--- wifi wifi 1970-01-01 00:00 wpa_supplicant

-rw-rw---- wifi wifi 132 1970-01-02 00:01 wpa_supplicant.conf

Thanks And Regards,

Ranganath TM

Re: wifi binding on imx6sl evk based board

ranganathtm — Wed, 19 Nov 2014 10:58:40 GMT

Hi Zoran,

I am able to solve permission issue now wpa_supplicant is running in command line, but I fails when I try from settings app below are logs:

root@sabresd_6dq:/data/system/wpa_supplicant # logcat

--------- beginning of /dev/log/system

D/WifiService( 2515): setWifiEnabled: true pid=2835, uid=1000

--------- beginning of /dev/log/main

D/WifiStateMachine( 2515): handleMessage: E msg.what=131083

D/WifiStateMachine( 2515): processMsg: InitialState

E/WifiHW ( 2515): the ret value form is_wifi_driver_loaded = 1

E/WifiHW ( 2515): the check condition inside wifi.c wifi_load_driver

E/WifiStateMachine( 2515): trying to start supplicant

D/SoftapController( 2184): Softap fwReload - Ok

D/CommandListener( 2184): Setting iface cfg

D/CommandListener( 2184): Trying to bring down wlan0

E/WifiHW ( 2515): inside wifi_stop_supplicant = init.svc.wpa_supplicant

D/dalvikvm( 2515): GC_CONCURRENT freed 315K, 44% free 5272K/9408K, paused 3ms+3ms, total 42ms

E/WifiHW ( 2515): wifi_start_supplicant p2p=0

E/WifiHW ( 2515): Wi-Fi will ensure config file exist

D/WifiHW ( 2515): start supplicant cmd=wpa_supplicant

E/WifiHW ( 2515): TMR after start supplicant checking its status

E/WifiHW ( 2515): TMR supplicant name = init.svc.wpa_supplicant

I/wpa_supplicant( 3297): Successfully initialized wpa_supplicant

E/WifiHW ( 2515): TMR after start supplicant checking its status

E/WifiHW ( 2515): TMR supplicant name = init.svc.wpa_supplicant

E/WifiHW ( 2515): TMR: supplicant stopped

E/WifiStateMachine( 2515): Failed to start supplicant!

D/WifiStateMachine( 2515): handleMessage: X

D/WifiStateMachine( 2515): handleMessage: E msg.what=131144

D/WifiStateMachine( 2515): processMsg: InitialState

D/WifiStateMachine( 2515): processMsg: DefaultState

D/WifiStateMachine( 2515): handleMessage: X

D/WifiStateMachine( 2515): handleMessage: E msg.what=131085

D/WifiStateMachine( 2515): processMsg: InitialState

D/WifiStateMachine( 2515): processMsg: DefaultState

D/WifiStateMachine( 2515): handleMessage: X

D/WifiStateMachine( 2515): handleMessage: E msg.what=131149

D/WifiStateMachine( 2515): processMsg: InitialState

D/WifiStateMachine( 2515): processMsg: DefaultState

D/WifiStateMachine( 2515): setSuspendOptimizations: 2 true

D/WifiStateMachine( 2515): mSuspendOptNeedsDisabled 0

D/WifiStateMachine( 2515): handleMessage: X

Thanks And Regrads,

Ranganath TM

Re: wifi binding on imx6sl evk based board

zoranl — Wed, 19 Nov 2014 11:43:15 GMT

Did you restart device, always try to turn wifi on from Settings after reboot.

Could you cat wpa_supplicant.conf file in /system/etc/wifi/ and also in /data/misc/wifi, they seamed to be same size, but a little too big :-) ?

Here are mine:

root@shd_6sl:/ # cat /data/misc/wifi/wpa_supplicant.conf

update_config=1

ctrl_interface=wlan0

eapol_version=1

ap_scan=1

fast_reauth=1

same as in

root@shd_6sl:/ # cat /system/etc/wifi/wpa_supplicant.conf

BR,

Zoran

Re: wifi binding on imx6sl evk based board

ranganathtm — Thu, 20 Nov 2014 11:47:03 GMT

Hi Zoran,

I did following experiment first I turned on wpa_supplicant in command line and after the I typed svc_wifi_enable, by below experiment I am able to see wifi device list in settings app,

cat system/etc/permissions/platform.xml | grep -i wifi ---------> I am not able find any thing in my system

Below are my config files:

cat /data/misc/wifi/wpa_supplicant.conf

ctrl_interface=DIR=/data/system/wpa_supplicant GROUP=wifi

update_config=1

device_name=sabresd_6dq

manufacturer=Freescale

model_name=SABRESD-MX6DQ

model_number=SABRESD-MX6DQ

serial_number=

device_type=10-0050F204-5

config_methods=physical_display virtual_push_button

p2p_listen_reg_class=81

p2p_listen_channel=11

persistent_reconnect=1

network={

ssid="XT1068 2883"

key_mgmt=NONE

priority=5

}

network={

ssid="HemanthAP"

psk="medconnect"

key_mgmt=WPA-PSK

priority=6

disabled=1

}

cat /system/etc/wifi/wpa_supplicant.conf <

##### wpa_supplicant configuration file template #####

update_config=1

ctrl_interface=DIR=/data/system/wpa_supplicant GROUP=wifi

eapol_version=1

ap_scan=1

fast_reauth=1

config_methods=virtual_push_button physical_display keypad

p2p_listen_channel=11

p2p_listen_reg_class=81

persistent_reconnect=1

root@sabresd_6dq:/ #

Thanks And Regrads,

Ranganath TM