On 12/03/2012 10:55 AM, Christopher Vogl wrote:
Hi Mingli,
On 30/11/12 16:40, Ming Li Wu wrote:
Hello,
I am working on Telit HE910 modem.
I am using ofono 1.11, and the commit is
6e3a6156b34c52bde253b097976d0ba9dd575879.
For the Telit modem, "AT+CFUN=4" is used to enable
the modem. According to "Telit He910 AT Commands
Reference Guide", "issuing AT+CFUN=4[,0] actually
causes the module to perform either a network
deregistration and a SIM deactivation."
After this command is sent out, an unsolicited indication
"\r\n#QSS: 0\r\n" is received by of ofono. This means that
the sim card cannot be detected by the modem. It turns out
that Connman will not put the modem on line.
if "AT+CFUN=5" was used, it worked fine.
My questions are:
1. Why is "AT+CFUN=4" used to enable the modem, instead of "AT+CFUN=1"
or "AT+CFUN=5"?
2. If "AT+CFUN=4" is reasonable, are there any solutions to solve this
problem?
Thanks!
Mingli
The following is the log when "AT+CFUN=4" was used.
ofonod[358]: plugins/udevng.c:setup_telit() modem=/dev/ttyACM0
aux=/dev/ttyACM3 gps=(null) diag=/dev/ttyACM1
ofonod[358]: src/modem.c:set_modem_property() modem 0x1152008 property
Modem
ofonod[358]: src/modem.c:set_modem_property() modem 0x1152008 property
Aux
ofonod[358]: src/modem.c:set_modem_property() modem 0x1152008 property
Diag
ofonod[358]: src/modem.c:ofono_modem_register() 0x1152008
ofonod[358]: plugins/telit.c:telit_probe() 0x1152008
ofonod[358]: src/modem.c:emit_modem_added() 0x1152008
ofonod[358]: src/modem.c:call_modemwatches() 0x1152008 added:1
ofonod[358]: plugins/hfp_ag.c:modem_watch() modem: 0x1152008, added: 1
ofonod[358]: plugins/dun_gw.c:modem_watch() modem: 0x1152008, added: 1
ofonod[358]: plugins/smart-messaging.c:modem_watch() modem: 0x1152008,
added: 1
ofonod[358]: plugins/push-notification.c:modem_watch() modem:
0x1152008, added: 1
ofonod[358]: plugins/telit.c:telit_enable() 0x1152008
ofonod[358]: src/modem.c:get_modem_property() modem 0x1152008 property
Modem
ofonod[358]: plugins/telit.c:open_device() Modem /dev/ttyACM0
ofonod[358]: src/modem.c:get_modem_property() modem 0x1152008 property
Aux
ofonod[358]: plugins/telit.c:open_device() Aux /dev/ttyACM3
ofonod[358]: Aux: > ATE0 +CMEE=1\r
ofonod[358]: Aux: < \r\nOK\r\n
ofonod[358]: Aux: > AT#QSS=0\r
ofonod[358]: Aux: < \r\nOK\r\n
ofonod[358]: Aux: > AT+CFUN=4\r
ofonod[358]: Aux: < \r\nOK\r\n
ofonod[358]: plugins/telit.c:cfun_enable_cb() 0x1152008
ofonod[358]: src/modem.c:modem_change_state() old state: 0, new state: 1
ofonod[358]: plugins/telit.c:telit_pre_sim() 0x1152008
ofonod[358]: Aux: > AT&C0\r
ofonod[358]: src/sim.c:ofono_sim_add_state_watch() 0x1153d30
ofonod[358]: src/sim.c:ofono_sim_add_state_watch() 0x1153d30
ofonod[358]: src/sim.c:ofono_sim_add_state_watch() 0x1153d30
ofonod[358]: Aux: < \r\nOK\r\n
ofonod[358]: Aux: > AT+GCAP\r
ofonod[358]: Aux: < \r\n+GCAP: +CGSM,+DS,+FCLASS,+MS,+ES\r\n\r\nOK\r\n
ofonod[358]: Aux: > AT+CRC=1\r
ofonod[358]: Aux: < \r\nOK\r\n
ofonod[358]: Aux: > AT+CLIP=1\r
ofonod[358]: Aux: < \r\nOK\r\n
ofonod[358]: Aux: > AT+CDIP=1\r
ofonod[358]: Aux: < \r\nERROR\r\n
ofonod[358]: Aux: > AT+CNAP=1\r
ofonod[358]: Aux: < \r\nERROR\r\n
ofonod[358]: Aux: > AT+COLP=1\r
ofonod[358]: Aux: < \r\nOK\r\n
ofonod[358]: Aux: > AT+CSSN=1,1\r
ofonod[358]: Aux: < \r\nOK\r\n
ofonod[358]: Aux: > AT+VTD?\r
ofonod[358]: Aux: < \r\n0\r\n\r\nOK\r\n
ofonod[358]: Aux: > AT+CCWA=1\r
ofonod[358]: Aux: < \r\nOK\r\n
ofonod[358]: drivers/atmodem/voicecall.c:at_voicecall_initialized()
voicecall_init: registering to notifications
ofonod[358]: src/sim.c:ofono_sim_add_state_watch() 0x1153d30
ofonod[358]: Aux: > AT#AUTOATT=0\r
ofonod[358]: Aux: < \r\nOK\r\n
ofonod[358]: Aux: > AT#QSS=2\r
ofonod[358]: Aux: < \r\nOK\r\n
ofonod[358]: Aux: > AT+CGMI\r
ofonod[358]: Aux: < \r\nTelit\r\n\r\nOK\r\n
ofonod[358]: Aux: > AT+CLCC\r
ofonod[358]: Aux: < \r\nOK\r\n
ofonod[358]: Aux: > AT+CGMM\r
ofonod[358]: Aux: < \r\nHE910\r\n\r\nOK\r\n
ofonod[358]: Aux: > AT+CGMR\r
ofonod[358]: Aux: < \r\n12.00.003\r\n\r\nOK\r\n
ofonod[358]: Aux: > AT+CGSN\r
ofonod[358]: Aux: < \r\n357164040533674\r\n\r\nOK\r\n
ofonod[358]: Aux: < \r\n#QSS: 0\r\n
ofonod[358]: plugins/telit.c:telit_qss_notify() 0x1152008
ofonod[358]: plugins/telit.c:switch_sim_state_status() 0x1152008, SIM
status: 0
AT+CFUN=1 is used to set the modem online, i.e. enable RX, TX it also
enables the SIM. AT+CFUN = 4 is used to set the modem in flight mode.
I cannot see that the modem is set online in your debug output, i.e. a
D-Bus call to org.ofono.Modem.SetProperty('Online', true) is made.
Without this call you will never get an URC of #QSS with a value greater
than 0. SIM detection is enabled after AT+CFUN=1.
I never worked with ConnMan so I don't know what causes ConnMan to set
the modem online.
ConnMan can enable the modem, but needs the GPRS interface exported from
Ofono in order to be able to do so, something which happens in post_sim
for the Telit modem. So this is a catch 22...
The online-modem command works fine for this modem, the dilemma is to
get ConnMan to do issue it for us.
So I guess, in summary, the problem is that post_sim will not be called
until _after_ telit_online, whereas we really would need it to somehow
be called in conjunction with telit_enable so that telit_online can be
invoked by ConnMan... hope that makes sense.
Any suggestions?
The Telit HE910 manual says:
Note: the command reports the SIM status change after the <mode> has
been set to
2. We suggest to set <mode>=2 and save the value in the user profile, then
power off the module. The proper SIM status will be available at the next
power on.
So, my thinking is that we need to do something like this:
i) At telit_enable, set CFUN=1 and wait for QSS=2 or QSS=3.
ii) When we get QSS=2 or QSS=3 then we can set SIM_READY state so that
post_sim gets called... this should be called after all the IMSI
querying, etc. (right?)
iii) Once we're in SIM_READY state, we set CFUN=4... this is the 'end'
of the 'telit_enable' phase
iv) While in CFUN=4 state, we ignore QSS: 0
V) This should result in the GPRS interface being exported so that
connman can call 'online' call which will result in the switch to the
"real" CFUN=1
What do you think? Reasonable? Will it work?
Best regards,
Jonas Bonn
South Pole Consulting
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