Since the modem states patch the delay for power-on wasn't honored
for Option devices. Fix that using the new power-on-done handler
and also fix the bug where if the modem was removed, the plugin
would crash because it wasn't handling the timeout removal.
Also remove the explicit PIN check since that's now handled by the
generic GSM code before the modem is even exported over DBus.
Allow plugins to perform asynchronous port detection, and to defer port detection
until later. This moves the prober bits into MMPluginBase so that all plugins
can take adavantage of it only when needed; the probing is not done at udev time.
Furthermore, plugins like Novatel can flip the secondary ports over the AT mode
through deferred detection, by deferring the secondary ports until the main port
has been detected and AT$NWDMAT has been sent.
This commit also finishes the port of the rest of the plugins (except mbm) over
to the new port detection methods and plugin API.
* Add IpMethod property with known values ppp (default), static, DHCP.
* Rename DataDevice property to Device.
* Add GetIP4Config method. It should be implemented only when IpMethod==static.
* Update org.freedesktop.ModemManager.Modem.Gsm.Sms interface based on
Pablo Martí Gamboa's suggestions.
* Adjust MBM and HSO interfaces to take advantage of the generic Modem
interface.
Rework the MMCallbackInfo callback invocation.
Always use g_error_literal() where it makes sense.
Replace sleep() calls, with timeouts to not block the whole MM.
