wlan not working

[modjo756]

Hi i'm trying to use wifi (host ap with connman) on neo card with morty branch and kernel 3.14.56 but i have this error when i'm trying to mount the network

root@udooneo:~# connmanctl tether wifi on wifiNetwork 123456789 Wifi SSID set Wifi passphrase set [ 88.217414] ipv6: no symbol version for sock_register [ 88.224577] ipv6: Unknown symbol sock_register (err -22) [ 88.231826] ipv6: no symbol version for ns_capable [ 88.236633] ipv6: Unknown symbol ns_capable (err -22) Error enabling wifi tethering: Not supported

it's strange because i use exactly the same defconfig (for kernel build) that i use on krogoth and on this branch all work fine ?! Do you have an idea where is the issue ?

[cyrilfr]

There is a bug in the wl18 (udoo neo) driver I guess. When you try to connect multiple UDOO to the same AP, they get disconnected after a while. There is messages from the kernel.

wlcore: WARNING corrupted packet in RX: status: 0x3 len: 76 (repeated 2 times) wlcore: WARNING corrupted packet in RX: status: 0x3 len: 216 (repeated 2 times) wlcore: WARNING corrupted packet in RX: status: 0x3 len: 104  wlcore: WARNING corrupted packet in RX: status: 0x3 len: 64 wlcore: WARNING corrupted packet in RX: status: 0x3 len: 64  ...

I updated the wl18-conf recipe to the last revision without success. I use the v 4.1.15 of the kernel. I'll have a look on this tomorrow.

[cyrilfr]

What's the point of the file "wl18xx-conf.bin" in the recipe wl18xx-conf ? It seems that updating the TI firmware could resolve the issue. This bug makes the UDOO NEO Wi-Fi unusable when there is more than 2 device on the same WLAN.

https://support.logicpd.com/TDGForum/tabid/124/aft/2026/Default.aspx

I also moved to the last commit (tag R8.7_SP2) : https://git.ti.com/wilink8-wlan/18xx-ti-utils/commit/5040274cae5e88303e8a895c2707628fa72d58e8 that didn't solve the issue.

I found a list of firmwares : https://github.com/TI-OpenLink/firmwares/tree/master/ti-connectivity but I don't know where it supposed to go. The update date is pretty old then.

[graugans]

The origin of wl18xx-conf.bin was the official UDOO image. @cyrilfr if you have a better version I would really happy to add this file. As far as I remember this file could be generated with the input of some ini files. I am not sure if it is possible to generate an ini back from the bin to compare what are the differences.

[cyrilfr]

I don't have a better configuration file. As far as I know, this is more a firmware related issue, which is closed-source.

I found that the kernel has the last firmware (wl18xx-fw-4.bin) available on Internet (no need to update it with a new recipe).

There is a very ugly workaround proposed in this thread using a watchdog to detect corrupted packets with a counter and perform a reauthentication with WPA_supplicant : https://e2e.ti.com/support/wireless_connectivity/wilink_wifi_bluetooth/f/307/t/401452

I'm surprised that this WL18xx chipset simply doesn't fully work for years! I tested with different AP, same issue since more than one board is connected.

[graugans]

That are bad news, I guess you've tried this with the official UDOO image as-well.

[cyrilfr]

I was wrong, the firmware provided in poky isn't the last one. Poky provides the v8.9.0.0.69 and the last one available is the v8.9.0.0.75. This update fixed the issue.

[cyrilfr]

You can find a fully working layer with linux v4.1 (only udooneo) on my repo : https://github.com/cyrilfr/meta-udoo WARNING: I updated a few options in the defconfig to fix issues from the graugans's layer and moved recipes to more relevant places.

[cyrilfr]

There is still random errors with the last firmware (8.9.0.0.76) :

[ 1832.622482] wlcore: ERROR SW watchdog interrupt received! starting recovery.
[ 1832.629728] ------------[ cut here ]------------
[ 1832.634759] WARNING: CPU: 0 PID: 138 at /usr/src/debug/ti-compat-wireless-wl18xx/R8.7_SP2+gitAUTOINC+5c94cc59ba-r2/compat-wireless/drivers/net/wireless/ti/wlcore/main.c:806 wl12xx_queue_recovery_work.part.9+0x58/0x5c [wlcore]()
[ 1832.655391] Modules linked in: bnep btwilink bluetooth ipv6 usb_f_acm u_serial g_serial libcomposite wl18xx(O) wlcore(O) mac80211(O) cfg80211(O) rfkill mxc_vadc mx6s_capture mxc_dcic fxos8700 fxas2100x wlcore_sdio(O) compat(O) ci_hdrc_imx usbmisc_imx ci_hdrc udc_core ehci_hcd evbug galcore(O) st_drv
[ 1832.683567] CPU: 0 PID: 138 Comm: irq/77-wl18xx Tainted: G           O    4.1.15_2.0.x-udoo+g7773e46 #1
[ 1832.692964] Hardware name: Freescale i.MX6 SoloX (Device Tree)
[ 1832.698852] [<80015adc>] (unwind_backtrace) from [<80012600>] (show_stack+0x10/0x14)
[ 1832.706632] [<80012600>] (show_stack) from [<80513c10>] (dump_stack+0x74/0xb4)
[ 1832.713893] [<80513c10>] (dump_stack) from [<8002fd1c>] (warn_slowpath_common+0x80/0xb0)
[ 1832.721993] [<8002fd1c>] (warn_slowpath_common) from [<8002fde8>] (warn_slowpath_null+0x1c/0x24)
[ 1832.730849] [<8002fde8>] (warn_slowpath_null) from [<7f2067d8>] (wl12xx_queue_recovery_work.part.9+0x58/0x5c [wlcore])
[ 1832.741652] [<7f2067d8>] (wl12xx_queue_recovery_work.part.9 [wlcore]) from [<7f206a64>] (wlcore_irq+0x168/0x16c [wlcore])
[ 1832.752672] [<7f206a64>] (wlcore_irq [wlcore]) from [<80068f7c>] (irq_thread_fn+0x1c/0x40)
[ 1832.760972] [<80068f7c>] (irq_thread_fn) from [<80069280>] (irq_thread+0x12c/0x178)
[ 1832.768657] [<80069280>] (irq_thread) from [<800489ac>] (kthread+0xdc/0xf4)
[ 1832.775665] [<800489ac>] (kthread) from [<8000f3e8>] (ret_from_fork+0x14/0x2c)
[ 1832.782890] ---[ end trace cf641541ff17fd20 ]---

But it seems to recover after that.

[patrykk]

I could not reproduce a problem:

"root@udooneo01:~# dmesg | grep -i wl [ 1.004249] wlan-en-regulator: disabling [ 7.964113] wlcore: wl18xx HW: 183x or 180x, PG 2.2 (ROM 0x11) [ 7.997218] wlcore: loaded [ 7.997260] wlcore: driver version: R8.6_SP1 [ 11.072756] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 11.619405] wlcore: PHY firmware version: Rev 8.2.0.0.232 [ 11.682523] wlcore: firmware booted (Rev 8.9.0.0.48) [ 11.705156] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 12.493367] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 13.865615] wlan0: authenticate with a0:21:b7:ac:8f:b9 [ 13.869838] wlan0: send auth to a0:21:b7:ac:8f:b9 (try 1/3) [ 13.888457] wlan0: authenticated [ 13.899149] wlan0: associate with a0:21:b7:ac:8f:b9 (try 1/3) [ 13.903066] wlan0: RX AssocResp from a0:21:b7:ac:8f:b9 (capab=0x431 status=0 aid=1) [ 13.912543] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 13.917221] wlan0: associated [ 14.008846] wlcore: Association completed. "

[cyrilfr]

It appears randomly.

[graugans]

That's strange. Sadly I can't take a look at this before XMas holidays

[cyrilfr]

I fxed this issue in the rocko branch: https://www.udoo.org/forum/threads/meta-udoo-rocko-for-udoo-neo.14671/