drivers: nrf_radio_802154: Add callout for custom initialization part

This commit introduces nrf_802154_custom_part_of_radio_init callout.
Application can override weak empty implementation to provide some additional
operations to be performed at the beginning of each new timeslot.

Signed-off-by: Adam Zelik <[email protected]>

Author: AdamZelikNS

drivers/nrf_radio_802154/src/nrf_802154.c

@@ -842,6 +842,11 @@ uint32_t nrf_802154_time_get(void)
     return nrf_802154_timer_sched_time_get();
 }
 
+__WEAK void nrf_802154_custom_part_of_radio_init(void)
+{
+    // Intentionally empty
+}
+
 __WEAK void nrf_802154_tx_ack_started(const uint8_t * p_data)
 {
     (void)p_data;

drivers/nrf_radio_802154/src/nrf_802154.h

@@ -72,6 +72,15 @@ void nrf_802154_init(void);
  */
 void nrf_802154_deinit(void);
 
+/**
+ * @brief Perform some additional operations during initialization of the RADIO peripheral.
+ *
+ * By implementing this function the higher layer can provide some additional operations
+ * to be performed at the beginning of each new timeslot. These can in particular be
+ * modifications of RADIO peripheral register values.
+ */
+extern void nrf_802154_custom_part_of_radio_init(void);
+
 #if !NRF_802154_INTERNAL_RADIO_IRQ_HANDLING
 /**
  * @brief Handles the interrupt request from the RADIO peripheral.

drivers/nrf_radio_802154/src/nrf_802154_trx.c

@@ -444,6 +444,9 @@ void nrf_802154_trx_enable(void)
     // Set channel
     channel_set(nrf_802154_pib_channel_get());
 
+    // Custom initialization operations
+    nrf_802154_custom_part_of_radio_init();
+
     irq_init();
 
     assert(nrf_radio_shorts_get(NRF_RADIO) == SHORTS_IDLE);