Move the `REQUIRES_FULL_LIBC` dependency from `config LORA` to
`config LORAWAN`. The commit that added the `select` (f590d4fa) mentions
that this is required by `loramac-node`, which is only used by LoRaWAN,
not the base LoRa code.
This results in small FLASH savings when compiling the samples, but can
result in larger savings in more complex applications:
```
// With REQUIRES_FULL_LIBC
west build -b 96b_wistrio zephyr/samples/drivers/lora/send/
[162/162] Linking C executable zephyr/zephyr.elf
Memory region Used Size Region Size %age Used
FLASH: 37708 B 128 KB 28.77%
SRAM: 8832 B 32 KB 26.95%
IDT_LIST: 0 GB 2 KB 0.00%
// Without REQUIRES_FULL_LIBC
[181/181] Linking C executable zephyr/zephyr.elf
Memory region Used Size Region Size %age Used
FLASH: 37444 B 128 KB 28.57%
SRAM: 8832 B 32 KB 26.95%
IDT_LIST: 0 GB 2 KB 0.00%
```
Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
Adding a reference implementation of the Non-Volatile Memory module
needed to join any LoRaWAN network.
This NVM is based on the SETTINGS subsys to store all the required
key to join and communicate on a LoRaWAN network.
Without proper NVM, one may experience errors when using OTAA
to join the network, as the device may violate anti-replay
protection (depending on the version of LoRaWAN).
Signed-off-by: Giuliano Franchetto <giuliano.franchetto@intellinium.com>
With the introduction of `EXPERIMENTAL` and `WARN_EXPERIMENTAL` in
Zephyr all subsys/lorawan settings having `[EXPERIMENTAL]` in their
prompt has has been updated to include `select EXPERIMENTAL` so that
developers can enable warnings when experimental features are enabled.
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
SystemMaxRxError is used to negotiate overall timing error for Rx
in the loramac-node library. Hence, add support for configuring this
parameter from Kconfig.
Signed-off-by: Kuba Sanak <contact@kuba.fyi>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Add initial support for LoRaWAN based on Semtech's loramac-node
library. Current implementation only supports OTAA config and
sending data to LoRaWAN server like ThingsNetwork.
While at it, this commit also moves the "loramac-node" library
definition from drivers/lora to subsys/lorawan. This is required
because, subsys/lorawan gets processed before drivers/lora and
that creates issue while building.
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
