If the modem is already registered when ModemManager probes the modem,
it will ignore the registration state since the modem is not enabled
yet. Always querying the registration state before starting the
registration procedure makes sure to catch such cases and not perform
unnecessary registration steps.
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
During profile setup, the profile manager normally disconnects a profile
before re-using it. We do not want to do this for the initial EPS bearer
because that would trigger de-registration.
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
Also bump the timeout for the +CFUN operations as they may take up to
10s according to the AT command manual (e.g. MA510).
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
In situations where the configured APN for the initial EPS bearer
(cid=1) does not match the APN for the actual connection, ModemManager
sets up a context (cid!=1) with the proper APN when connecting. If the
APN for the initial EPS bearer was not valid, the SIM may fall back to a
default one. If that default matches the APN for the proper connection,
the initial EPS bearer is re-used for the actual connection. In that
scenario, +CGACT? will report deactivated for the actual connection
context (cid!=1). ModemManager subsequently reports the connection as
disconnected.
+GTRNDIS? will always reflect the correct state for the context ID we
used to set up the ECM connection. Hence, it makes sense to use this
command to assess the connection status.
This has been tested with the MA510-GL modem module.
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
This URC is emitted when the SIM phonebook is initialized. We don't care
about that but don't want this URC to mess with the initialization
sequence either.
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
This is the factory-default setting. Make sure to support it as well as
the ECM/RNDIS settings. The L610 in GTUSBMODE=31 only enumerates with
serial USB interfaces using the option driver, so we need to allow that
driver too.
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
This fixes a bug introduced in a2a0e2d754. Since the state pointer is
always non-NULL, the function will always fail if GTRNDIS is inactive,
i.e. the modem will return state=0 and no cid field.
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
The ECM dialling guide requires to check whether RNDIS is already active
before attempting to establish an ECM/RNDIS connection.
If it is active (regardless of its settings), we will disconnect it
first, before attempting the new connection with the user-provided
settings.
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
If no DMS capabilities are reported, we fall back to the capabilities
reported by NAS SSP or NAS TP.
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
+CGDCONT? may list profiles with IDs that are illegal to write, i.e.
+CGDCONT=? returns a minimum ID larger than some of the existing
profiles. E.g. for Fibocom L610-EU, +CGDCONT=? returns
+CGDCONT: (1-7),"IP",,,(0-3),(0-4)
+CGDCONT: (1-7),"IPV6",,,(0-3),(0-4)
+CGDCONT: (1-7),"IPV4V6",,,(0-3),(0-4)
+CGDCONT: (1-7),"PPP",,,(0-3),(0-4)
+CGDCONT: (1-7),"Non-IP",,,(0-3),(0-4)
while the default EPS bearer is established at profile 0:
+CGDCONT: 0,"IP","xxx","xxx.xxx.xxx.xxx",0,0
[...]
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
This allows us to not rely on bash which may not be available on
constrained systems, e.g. Yocto-built embedded systems. The scripts now
pass shellcheck.
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
Fibocom's documentation states that we must double-check the connection
is established when setting up an ECM connection. The possible replies -
according to the documentation - are:
+GTRNDIS: <state>,<cid>,<ip>,<prim. dns>,<sec. dns>
OK
or
+GTRNDIS: 0
We just care about the state value which is 1 if everything worked.
When configuring these modems with AT+UUSBCONF=2, i.e. CDC-ECM + 4x
CDC-ACM, they also enumerate with a different PID on the USB. We need to
adjust the udev rules for that case in order to ignore the non-AT ports.
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
The SARA-U2xx and LISA-U20x require the PDP context to be activated via
+UCEDATA instead of +CGACT=1 when using the CDC-ECM USB profile.
Furthermore, they expect the DHCP discover packet from the TE while the
command is running, i.e. while the modem has not replied yet. In order
to achieve that, the bearer is marked as connected as soon as the
command is issued. This makes the NetworkManager start the DHCP process.
If the modem replies with an error, the bearer will be marked
disconnected later on.
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
Sven Schwermer