15 Jul
2013
15 Jul
'13
1:19 p.m.
On Mon, Jul 15, 2013 at 2:35 PM, Thomas Tsou <ttsou(a)vt.edu> wrote:
On Sun, Jul 14, 2013 at 10:01 PM, Alexander Chemeris
<alexander.chemeris(a)gmail.com> wrote:
I made an attempt to implement it in the 806a64b1 patch. If you check
out this commit, you should get the assert during TURN ON/OFF/ON
sequence. To start/stop transceiver I use scripts attached to this
e-mail.
I've made some progress in making osmo-trx
able to power off/on
without restart. At this moment it's almost there - the only big
remaining issue I see is some bug with UHD device start/stop. It seems
we do not re-initialize it properly and assert (num_rd == OUTCHUNK)
fails. I hope you could fix that.
This is a very positive patch set. As you very well know, the power
on/off handling was in a ugly state. One of the remaining issue with
UHD start/stop is that the device clock is reset to zero at restart,
but not all of the timestamp counters are reset in radioInterface. The
radioInterface is not stopped at all until deallocation since
'POWEROFF' is an empty command. I've only looked at the outer thread interface
changes, but the
ability to tear down individual threads (instead of uncontrolled stack
unwinding) makes the remaining issues much more straightforward.
There's a fair amount of old code that was probably never written with
restart in mind, but I don't see any issues with cleaning that up.
For the old code we could use "compatibility" mode where we don't
shutdown or exit on shutdown.
--
Regards,
Alexander Chemeris.
CEO, Fairwaves LLC / ООО УмРадио
http://fairwaves.ru