On 03/12/2016 07:57 AM, Holger Freyther wrote:
at sysmocom we are building a BTS (OsmoBTS, OpenBSC) test setup and
use ofono to build our testcases. We are using Sierra Wireless (former
Wavecom) modules and have some stability issues.
I have two issues that I don't understand and they are related to the plugin
model and after looking at others I don't find the answer.
In the beginning we used the +WIND indication and created objects. E.g.
we created the netreg after it starts to search for networks.. but if the
+WIND indication fro the SIM ready came either during the registration
or before.. we would see crashes. We now mostly ignore +WIND and guess
about it. Not all plugins create all objects and they are created at different
points. So what is the best way to do it?
I'm not familiar with the WIND indication. Can you provide a reference
In general, all atoms should be created in pre_sim(), post_sim() or
One other problem is that post_sim doesn't seem to be called. After looking
at the src/modem.c file I see that it is only called for certain states. E.g.
it looks like it is only called if the modem is still in the offline state and
appears to be never called for us. Is there a way to debug it? E.g. when should
the modem be powered up? when the SIM has been read? When the AT command
interpreter is ready?
pre_sim() is called as soon as the modem is powered.
post_sim() is called as soon as we detect that the SIM PIN has been
entered. E.g. via org.ofono.SimManager.EnterPin or if the PIN is not
locked. If certain SIM operations are simply not available, we assume
the SIM is not locked. It is generally not called more than once,
unless you remove the SIM (e.g. hot-swap capability).
post_online() is called when .set_online(TRUE) is executed successfully.
In general oFono expects that after calling the .set_powered(TRUE)
driver method, the modem is brought up to the point where it can accept
AT commands and the SIM Card reader is enabled. oFono can then get
basic info from the modem. After the SIM Card reader detects the SIM
and the modem is ready to accept SIM related operations, the modem
driver should call ofono_sim_inserted_notify(TRUE);
AT interpreter ready, SIM Card Powered -> Powered = True, Online = False
Above + Radio RX/TX circuits on -> Powered = True, Online = True
Complete debugging instructions can be found in ofono.git/HACKING. I
presume the Sierra modem is AT command based, so:
src/ofonod -n -d