Hi all,
I'm running a WL1271L (on Android + v3.0 kernel) and am trying to find
an up to date compat/backports package (want upstream bug fixes +
bluetooth stack with better BLE support) + the ability to properly
calibrate the chip.
I'm able to use newer wlcore architecture + a number of patches to
bridge the platform configuration gaps and am getting the code
fromgithub.com/TI-OpenLink/{compat,compat-wireless,wl18xx} on the
ol_r8.a7.02 tag, BLE works, WiFi works (using 6.3.10.0.133 firmware),
however the calibrator (v0.73) reports:
root@android:/data # ip link set wlan0 down
root@android:/data # ./calibrator dev wlan0 plt power_mode off
240|root@android:/data # ./calibrator plt calibrate
Unknown arch. Not setting nvs ver 2.1Calibrate ./new-nvs.bin
Fail to calibrate ith radio status (-36)
I'm able to enter PLT mode without issue, kernel message buffer:
[ 3276.057434] wlcore: power up
[ 3276.528961] wlcore: firmware booted in PLT mode PLT_ON (PLT 6.3.10.0.133)
Ideally I'd like to just use the upstream backports drivers from
backports.wiki.kernel.org and avoid the TI repos as they seem rather
turbulent. I've succeeded in getting v3.12.1
(www.kernel.org/pub/linux/kernel/projects/backports/stable/v3.12/backports-3.12-1.tar.bz2)
which does approximately the same thing:
root@android:/data # ./calibrator plt calibrate
Unknown arch. Not setting nvs ver 2.1Calibrate ./new-nvs.bin
Writing calibration data to ./new-nvs.bin
File ./new-nvs.bin not exists
Fail to prepare calibrated NVS file
root@android:/data # dmesg | tail
[ 292.573638] wlcore: power up
[ 293.024566] wlcore: firmware booted in PLT mode PLT_ON (PLT 6.3.10.0.133)
[ 293.074676] wlcore: testmode cmd: radio status=0
[ 293.075103] wlcore: power down
This leads me to some questions:
1) My understanding is that calibration tunes only the power
amplifiers, does anyone know how big of an effect this has? Is
figuring out the calibration worth spending time on it?
2) Has the firmware changed to potentially auto-calibrate as the new
wl18xx/WiLink8 devices do? I can't find any real changelogs on the
firmware that gets loaded.
3) Any other advice before I jump in to debugging the netlink +
calibration procedure?
Thanks,
- Kyle
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