Major changes:
- Dependency to FileHandle removed from base classes
- AT_CellularDevice owns the default FileHandle and shares it with AT -classes
- Hang-up -detection moved as CellularContext::configure_hup(). Cannot be configured via CellularDevice any more.
Result on NRF52840_DK + BG96:
GCC:
Total Static RAM memory (data + bss): 29360(+296) bytes
Total Flash memory (text + data): 130660(-832) bytes
ARM:
Total Static RAM memory (data + bss): 261554(+8) bytes
Total Flash memory (text + data): 127573(-1193) bytes
IAR:
Total Static RAM memory (data + bss): 25479(+296) bytes
Total Flash memory (text + data): 102418(-527) bytes
RAM increase is because now ATHandler is no longer created with new -operator but is now member of AT_CellularDevice,
so image tool is able to count it. Actually total RAM consumption has decreased due to removed variables.
Removed CellularBase and AT_CellularBase from cellular stack and updated both code and unittests accordingly.
Moved property handling into AT_CellularDevice
New ATHandler functions taken into use for rest of the targets (BG96 was updated initially) to reduce code size. This means basically that new functions using variadic list approach are taken into use and with those one can usually write AT commands in single line instead of multiple lines.
Only internal changes and API's are not modified.
Change usage of AT_CellularContext::stack_type_supported to
AT_CellularBase::get_property. This way we can rid of
targets overriding stack_type_supported and delete
unnecessary classes and simplify new targets.
After AT_CellularNetwork::has_registration was replaced with
CellularProperties and better
AT_CellularNetwork::set_access_technology_impl default
implementation we can delete most of the target specific classes
that inherit AT_CellularNetwork.
CellularDevice class own new state machine. Now we don't have to expose state machine
which may change and so we don't have to make API changes if that happens.
EasyCellularConnection uses now CellularDevice instead of old state machine.
Kimmo Vaisanen
Martin Kojtal
Ari Parkkila
Hugues Kamba
Lin Gao
Antti Kauppila
Teppo Järvelin
mudassar-ublox
Cruz Monrreal
Teemu Kultala