WiFi Firmware version - DB410c

darshak · June 10, 2020, 4:21am

Hello,

Can you please confirm the wifi firmware version is latest or not ? We are using Linaro 18.01 release.

Dmesg prints:

[ 7.159236] wcn36xx: firmware WLAN version ‘WCN v2.0 RadioPhy vRhea_GF_1.12 with 19.2MHz XO’ and CRM version ‘CNSS-PR-2-0-1-2-c1-00021’
[ 7.160573] wcn36xx: firmware API 1.5.1.2, 41 stations, 2 bssids

Thanks,
Darshak

Loic · June 10, 2020, 11:38am

You should upgrade, latest release contains newer firmware:

wcn36xx: firmware WLAN version 'WCN v2.0 RadioPhy vRhea_GF_1.12 with 19.2MHz XO' and CRM version 'CNSS-PR-2-0-1-2-c1-74-130449-3'
wcn36xx: firmware API 1.5.1.2, 41 stations, 2 bssids

darshak · June 10, 2020, 11:40am

Can I use only wifi firmware ( CNSS-PR-2-0-1-2-c1-74-130449-3) from the latest release? @Loic

Loic · June 10, 2020, 1:56pm

You can, but newer release contains also additional fixes in the driver.

darshak · June 11, 2020, 4:56am

@Loic, Can you please share list of the WiFi related kernel changes between Linaro release 18_01 and 20_02 (latest). At this moment, we can’t update the kernel version in our custom board, but in near future we will defiantly move to latest release.

Loic · June 11, 2020, 7:33am

Basically apply all the top patches you don’t have in your tree: working/qualcomm/kernel.git - qualcomm Landing Team kernel

Also, a remaining issue was sporadic authentication timeout, which usually requests an interface reset to recover: loic.poulain/wcn36xx-monitor.git - [no description]

You can however include this workaround service in your system:
https://git.linaro.org/people/loic.poulain/wcn36xx-monitor.git

darshak · June 13, 2020, 7:21am

@Loic

Also, a remaining issue was sporadic authentication timeout, which usually requests an interface reset to recover: loic.poulain/wcn36xx-monitor.git - [no description]

To, reproduce the issue, connect with AP and run wpa_cli -iwlan0 scan ; wpa_cli -iwlan0 reconfigure ;

[ 691.799356] wlan0: send auth to b0:4e:26:0b:8a:6d (try 1/3)
[ 692.001410] wlan0: send auth to b0:4e:26:0b:8a:6d (try 2/3)
[ 692.205416] wlan0: send auth to b0:4e:26:0b:8a:6d (try 3/3)
[ 692.409410] wlan0: authentication with b0:4e:26:0b:8a:6d timed out

continues logs come, as workaround is WiFi interface need to do down and up again. as @Loic provided the monitor service as well.

Due to some race condition happened with scan command. In wcn36xx driver, need to handle the serialization of the commands.