How to differentiate versions of modem lib for dect nr+?

RE: How to differentiate versions of modem lib for dect nr+?

Sigurd Hellesvik — Thu, 23 Jan 2025 11:34:33 GMT

That sounds like a good way to do it.
Good job finding the solution yourself!

RE: How to differentiate versions of modem lib for dect nr+?

Herr Schubert — Thu, 23 Jan 2025 07:58:39 GMT

I found a solution that works when I differentiate the API of the modem lib via its related SDK version.

Indeed there is a #define for the SDK version my code gets compiled against
in the generated code under build/firmware/zephyr/include/generated/ncs_version.h.

Now I can implement it like this:

static const struct nrf_modem_dect_phy_callbacks callbacks = {
.init = radio_init_cb,
.op_complete = op_complete_cb,
.rssi = rssi_cb,
.rx_stop = rx_stop_cb,
.pcc = pcc_cb,
.pcc_crc_err = pcc_crc_err_cb,
.pdc = pdc_cb,
.pdc_crc_err = pdc_crc_err_cb,
.link_config = link_config_cb,
.time_get = time_get_cb,
.capability_get = capability_get_cb,
#if NCS_VERSION_NUMBER >= 0x20900
.stf_cover_seq_control = stf_cover_seq_control_cb,
#endif
.deinit = deinit_cb
};

RE: How to differentiate versions of modem lib for dect nr+?

Herr Schubert — Wed, 22 Jan 2025 15:33:39 GMT

It should select the correct initializer for the needed callbacks depending on modem lib version it is build against.
Something like:

static const struct nrf_modem_dect_phy_callbacks callbacks = {
 .init = radio_init_cb,
 .op_complete = op_complete_cb,
 .rssi = rssi_cb,
 .rx_stop = rx_stop_cb,
 .pcc = pcc_cb,
 .pcc_crc_err = pcc_crc_err_cb,
 .pdc = pdc_cb,
 .pdc_crc_err = pdc_crc_err_cb,
 .link_config = link_config_cb,
 .time_get = time_get_cb,
 .capability_get = capability_get_cb,
#if defined NRF_MODEM_VERSION == "2.9"
 .stf_cover_seq_control = stf_cover_seq_control_cb,
#endif
 .deinit = deinit_cb
 };

RE: How to differentiate versions of modem lib for dect nr+?

Sigurd Hellesvik — Wed, 22 Jan 2025 11:45:16 GMT

Hi,

[quote user=""]But how can I differentiate at compile time which version of the struct I have to use (I want to support both).[/quote]

To make sure I understand correctly:

You want to build with either the new or the old struct depending on which modem fw version the app is built for?

Regards,
Sigurd Hellesvik