Hi Enrico!

Am 2015-06-29 um 14:59 schrieb Enrico Sau:
Hi Marko,
I had a similar problem with HE910 and I solved with the following code line immediatly after line 99 in he910.c plugin:

99| g_hash_table_insert(options, "Baud", "115200");
100| g_hash_table_insert(options, "Local", "on");

Let me know if it helps. 


Enrico


Thanks for the answer, but unfortunately it didn't help me.

I figured out that the at_cgdcont_cb() callback is not called on reconnect:

The correct log (on startup):

Jun 29 15:16:38 mx31tt01 daemon.warn connmand[561]: Skipping disconnect of /he910_0/context15, network is connecting.
Jun 29 15:16:38 mx31tt01 daemon.debug ofonod[657]: gprs-context.c(240):at_gprs_activate_primary() cid 1
Jun 29 15:16:38 mx31tt01 daemon.info ofonod[657]: Modem: > AT+CGDCONT=1,"IP","web.one.at"\r
Jun 29 15:16:38 mx31tt01 daemon.info ofonod[657]: Modem: < AT+CGDCONT=1,"IP","web.one.at"\r
Jun 29 15:16:38 mx31tt01 daemon.info ofonod[657]: Modem: < \r\nOK\r\n
Jun 29 15:16:38 mx31tt01 daemon.debug ofonod[657]: gprs-context.c(200):at_cgdcont_cb() ok 1
Jun 29 15:16:38 mx31tt01 daemon.info ofonod[657]: Modem: > AT+CGDATA="PPP",1\r
Jun 29 15:16:38 mx31tt01 daemon.info ofonod[657]: Modem: < AT+CGDATA="PPP",1\r
Jun 29 15:16:38 mx31tt01 daemon.info ofonod[657]: Modem: < \r\nCONNECT\r\n
Jun 29 15:16:38 mx31tt01 daemon.debug ofonod[657]: gprs-context.c(176):at_cgdata_cb() ok 1
Jun 29 15:16:38 mx31tt01 daemon.debug ofonod[657]: gprs-context.c(141):setup_ppp()


And the fail log (on reconnect):

Jun 29 15:19:34 mx31tt01 daemon.debug ofonod[657]: gprs-context.c(240):at_gprs_activate_primary() cid 1
Jun 29 15:19:34 mx31tt01 daemon.info ofonod[657]: Modem: > AT+CGDCONT=1,"IP","web.one.at"\r
...

Jun 29 15:20:14 mx31tt01 daemon.err connmand[561]: Failed to change property: /he910_0/context15 org.ofono.ConnectionContext.Active: org.freedesktop.DBus.Error.NoReply Did not receive a reply. Possible causes include: the remote application did not send a reply, the mess
Jun 29 15:21:25 mx31tt01 daemon.warn connmand[561]: Skipping disconnect of /he910_0/context15, network is connecting.
Jun 29 15:21:25 mx31tt01 daemon.err connmand[561]: Failed to change property: /he910_0/context15 org.ofono.ConnectionContext.Active: org.ofono.Error.InProgress Operation already in progress


Any idea what could cause this?

Regards,
Marko


2015-06-29 13:16 GMT+02:00 Marko Sulejic <marko.sulejic@hale.at>:

Am 2015-06-25 um 15:05 schrieb Marko Sulejic:
Hi again,

the problem seems to be in the
atmodem/gprs-context.c : gprs_activate_primary
function, where

    if (g_at_chat_send(gcd->chat, buf, none_prefix,
                at_cgdcont_cb, gc, NULL) > 0)

is called after a reconnect, and then it fails.


It seems to work if I call

    g_at_chat_send(gcd->chat, "AT&C0", none_prefix,
                NULL, NULL, NULL)

prior.

So this would mean that a disconnect or similar action sets DCD to low,
and the chats are closed.

Does oFono anywhere in the code sets DCD explicitely to low or is it maybe a bug?

My patch would look something like this (if it is an HE910 issue only):

    if (gcd->vendor == OFONO_VENDOR_TELIT)
    {
        if(g_at_chat_send(gcd->chat, "AT&C0", none_prefix,
                    NULL, NULL, NULL) <= 0)
            goto error;
    }


Thanks,
Marko


Am 2015-06-25 um 11:15 schrieb Marko Sulejic:
Hi,

I need your help in using a Telit HE910 with ofono (and eventually connman).
(I am using ofono 1.16 with HE910 firmware version 12.00.006; connman version is 1.29).

My problem is the following ...
on startup everything works fine and the ppp0 connection is established,
but problems occur in the following case:

connmanctl> disconnect cellular_*_context15
Disconnected cellular_*_context15

connmanctl> connect cellular_*_context15
Error /net/connman/service/cellular_*_context15: Input/output error


ofonod[5355]: gprs-context.c(244):at_gprs_activate_primary() cid 1
ofonod[5355]: gprs.c(889):pri_activate_callback() 0x1a18c50
ofonod[5355]: gprs.c(893):pri_activate_callback() Activating context failed with error: Unknown error type
connmand[3815]: Failed to change property: /he910_0/context15 org.ofono.ConnectionContext.Active: org.ofono.Error.Failed Operation failed


The same error happens if I am manually sending connect/disconnect via dbus-send.

Only a hard ofono restart can establish the connection again.
This behavior happens all the time once a ppp0 disconnect happened
(e.g. by removing the SIM; manual disconnect via dbus or connmanctl).

A subquestion regarding connman:
Can connmand be configured in such a way that on every connection
loss, ofono is triggered to reconnect to the Internet?

Thank you very muchin advance,
Marko
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Hi,

ok, the above code doesn't seem to solve the problem.

Regards,

Marko





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