Hi Simon,
On 08/20/2012 04:15 AM, Lemoine Simon wrote:
Hi,
I'm trying to use a Sierra Wireless MC8092 card with Ofono on an
embedded system, but Ofono fail to setup the card because there are
only five interfaces ttyUSB0 to ttyUSB4.
I have seen in function setup_sierra (plugins/udevng.c) that Ofono
expects to have a NetworkInterface on the interface 7.
Does anybody know why the MC8092 doesn't have seven interfaces? Or
which of the five interfaces could be the NetworkInterface?
It was because I haven't sierra_net driver in my kernel.
Now ofono finds the Network interface as usb0.
But I have an error with PIN authentication, and some AT commands return
ERROR, here is a part of the log I obtain :
ofonod[550]: plugins/udevng.c:setup_sierra() modem=/dev/ttyUSB3
app=/dev/ttyUSB4 net=usb0 diag=/dev/ttyUSB1
ofonod[550]: src/modem.c:set_modem_property() modem 0xf6e38 property
Modem
ofonod[550]: src/modem.c:set_modem_property() modem 0xf6e38 property App
ofonod[550]: src/modem.c:set_modem_property() modem 0xf6e38 property
Diag
ofonod[550]: src/modem.c:set_modem_property() modem 0xf6e38 property
NetworkInterface
ofonod[550]: src/modem.c:ofono_modem_register() 0xf6e38
ofonod[550]: plugins/sierra.c:sierra_probe() 0xf6e38
ofonod[550]: src/modem.c:emit_modem_added() 0xf6e38
ofonod[550]: src/modem.c:call_modemwatches() 0xf6e38 added:1
ofonod[550]: plugins/hfp_ag.c:modem_watch() modem: 0xf6e38, added: 1
ofonod[550]: plugins/dun_gw.c:modem_watch() modem: 0xf6e38, added: 1
ofonod[550]: plugins/smart-messaging.c:modem_watch() modem: 0xf6e38,
added: 1
ofonod[550]: plugins/push-notification.c:modem_watch() modem: 0xf6e38,
added: 1
ofonod[550]: plugins/sierra.c:sierra_enable() 0xf6e38
ofonod[550]: src/modem.c:get_modem_property() modem 0xf6e38 property
Modem
ofonod[550]: plugins/sierra.c:open_device() Modem /dev/ttyUSB3
ofonod[550]: Modem:> ATE0&C0 +CMEE=1\r
ofonod[550]: Modem:< ATE0&C0 +CMEE=1\r\r\nOK\r\n
ofonod[550]: Modem:> AT+CFUN=4\r
ofonod[550]: Modem:< \r\nOK\r\n
ofonod[550]: plugins/sierra.c:cfun_enable()
ofonod[550]: src/modem.c:modem_change_state() old state: 0, new state: 1
ofonod[550]: plugins/sierra.c:sierra_pre_sim() 0xf6e38
ofonod[550]: Modem:> AT+GCAP\r
ofonod[550]: src/sim.c:ofono_sim_add_state_watch() 0xf6408
ofonod[550]: src/sim.c:ofono_sim_add_state_watch() 0xf6408
ofonod[550]: src/sim.c:ofono_sim_add_state_watch() 0xf6408
ofonod[550]: Modem:< \r\n+GCAP: +CGSM,+DS,+ES\r\n\r\nOK\r\n
ofonod[550]: Modem:> AT+CRSM=192,12258,0,0,255\r
ofonod[550]: Modem:< \r\n+CME ERROR: 3\r\n
CME ERROR 3 means 'Operation not allowed'.
ofonod[550]: Modem:> AT+CGMI\r
ofonod[550]: Modem:< \r\nSierra Wireless, Incorporated\r\n\r\nOK\r\n
ofonod[550]: Modem:> AT+CRSM=192,28421,0,0,255\r
ofonod[550]: Modem:< \r\n+CME ERROR: 3\r\n
ofonod[550]: Modem:> AT+CGMM\r
ofonod[550]: Modem:< \r\nMC8092\r\n\r\nOK\r\n
ofonod[550]: Modem:> AT+CRSM=192,12037,0,0,255\r
ofonod[550]: Modem:< \r\n+CME ERROR: 3\r\n
ofonod[550]: Modem:> AT+CGMR\r
ofonod[550]: Modem:< \r\nP1_0_0_8AP R1338 CNHKGDKCE01 2011/10/21
09:21:31\r\n\r\nOK\r\n
ofonod[550]: Modem:> AT+CPIN?\r
ofonod[550]: Modem:< \r\n+CME ERROR: 14\r\n
And this means 'Sim Busy'
ofonod[550]: Querying PIN authentication state failed
ofonod[550]: Modem:> AT+CGSN\r
ofonod[550]: Modem:< \r\n351516050021187\r\n\r\nOK\r\n
ofonod[550]: Modem:< \r\n!STKC: 81\r\n
AT+CRSM=192,12258,0,0,255 return an error. I have tried to send "AT
+CRSM=192,12258,0,0,255" to the modem by using minicom and it returns no
error. Do you know why it returns an error when I'm using Ofono?
I have add a retry loop on "AT+CPIN?" request, at the third attempt the
request return OK but no other commands are sent.
Basically what happens is that oFono is too fast. When you try this
with minicom the firmware had enough time to initialize, but it does not
have the same chance (time wise) with oFono.
The modem firmware is trying to initialize its own internal state and
throws all of these errors. What you might need to do is to add a
periodic query of CPIN? until that returns something other than CME
ERROR: 14. at_util_sim_state_query_new() does just that. See
plugins/zte.c or plugins/speedup.c for an example of how this is done.
Regards,
-Denis
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