From: Denis Kenzior <denkenz@gmail.com>
To: "G. Weinholt" <g@weinholt.net>, ofono@lists.linux.dev
Subject: Re: SIM7600G-H: cid 1 activated before atom registered
Date: Sun, 12 Nov 2023 12:31:28 -0600 [thread overview]
Message-ID: <4cd8c507-0685-449a-9a8a-9cb36512f5d7@gmail.com> (raw)
In-Reply-To: <ZU354V7zyCseX1r2@castle.weinholt.se>
Hi,
On 11/10/23 03:37, G. Weinholt wrote:
> Hello,
>
> I have been troubleshooting a problem with a SIM7600G-H modem where the
> LTE network does not come up after reboot. It can be worked around by
> restarting ofono or connman.
After reboot of what exactly?
vi
>
> A symptom of the problem is that the context can't be activated manually
> because GPRS is marked as not attached. I've verified with both the modem
> and Onomondo's signaling logs that GPRS is attached and oFono is wrong.
So how does restarting oFono help?
>
> # dbus-send --print-reply --system --dest=org.ofono \
> /sim7x00_0/context1 org.ofono.ConnectionContext.SetProperty \
> string:"Active" variant:boolean:"true"
> Error org.ofono.Error.NotAttached: GPRS is not attached
> # mdmcmd /dev/serial/by-id/usb-SimTech_*-if02-port0 uart 'AT+CGATT?'
> Starting with device
> +/dev/serial/by-id/usb-SimTech__Incorporated_SimTech__Incorporated_0123456789ABCDEF-if02-port0, command
> +AT+CGATT?
> Received buffer: AT+CGATT?
> +CGATT: 1
>
> OK
What do AT commands have to do with qmimodem?
>
> There is an interesting log message: "cid 1 activated before atom
> registered". This message was added in the commit "gprs: Ignore activated
> contexts during init, list them later". That commit was followed by
> another commit: "atmodem: Implement the list_activated_contexts callback".
I'd have to see the log to say what exactly is happening, but...
gobi plugin sets up gprs in post_sim. If your contexts are not being
provisioned, then ofono_gprs_register() should be called prior to the modem
going Online and prior to drivers/qmimodem/gprs.c ever issuing
QMI_WDS_GET_LTE_ATTACH_PARAMETERS, which in turn generates the
ofono_gprs_cid_activated() call in question.
Regards,
-Denis
prev parent reply other threads:[~2023-11-12 18:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-10 9:37 SIM7600G-H: cid 1 activated before atom registered G. Weinholt
2023-11-12 18:31 ` Denis Kenzior [this message]
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