Autostarting PPP is far from controversial. There are many, many reasons
someone could have for wanting to control exactly when PPP starts. Power
management, NET_EVENT race condition avoidance and any application not
requiring constant and instant use of networking just to name a few.
This commit introduces a Kconfig setting, GSM_PPP_AUTOSTART, which
controls whether gsm_ppp should connect and initialize PPP at boot. It
is set to "y" as default to minimize surprises for legacy code.
Signed-off-by: Benjamin Lindqvist <benjamin.lindqvist@endian.se>
Some modems, under some conditions, have a tendency to get stuck without
a connection due to cached state. We have observed this on some Simcom
LTE modems after large cellular outages. The modems are unable to escape
their cached state for some reason unless they're factory reset (or a
cache clearence is forced in some other way).
This commit allows for the modem to be factory reset at each boot. This
minimizes dependencies on external state by ensuring each power-up is as
similar as possible.
Signed-off-by: Benjamin Lindqvist <benjamin.lindqvist@endian.se>
Instead of using physical UART to connection to the modem, use
the GSM 07.10 muxing protocol and UART mux driver to create
virtual channels to the modem. This will allow simultaneous
PPP, AT and other type connections to the modem.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Add Kconfig option that allows user to set MCC (Mobile Country
Code). If user does not set it, then automatic operator
registration is used.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Create a driver for GSM modems that use a standard AT command set
and enable Zephyr's own PPP stack for IP traffic.
Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
