Added the primary/rentramist slot type to the audio callback (zephyrp…

…roject-rtos#24)
NickolasLapp · Aug 3, 2022 · c608b2f · c608b2f
1 parent 5444bac
commit c608b2f
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Showing 2 changed files with 15 additions and 3 deletions.
diff --git a/subsys/bluetooth/controller/ll_sw/ull_conn.c b/subsys/bluetooth/controller/ll_sw/ull_conn.c
@@ -1060,8 +1060,14 @@ int ull_conn_rx(memq_link_t *link, struct node_rx_pdu **rx)
 		// *** Whisper added for MFI.  MFI audio packets come in with the reserved
 		// LLID.  When we see these packets, pass the payload on to the mfi audio callback
 		// if the callback exists
-		if(ull_mfi_audio_cb) {
-			ull_mfi_audio_cb(pdu_rx->lldata, pdu_rx->len);
+		if (ull_mfi_audio_cb) {
+			mfi_audio_slot_type_t slot_type;
+			if(pdu_rx->sn == 0) {
+				slot_type = MFI_AUDIO_SLOT_TYPE_PRIMARY;
+			} else {
+				slot_type = MFI_AUDIO_SLOT_TYPE_RETRANSMIT;
+			}
+			ull_mfi_audio_cb(pdu_rx->lldata, pdu_rx->len, slot_type);
 		}
 		// fallthrough (this existed before whisper modification)
 	default:

diff --git a/subsys/bluetooth/controller/ll_sw/ull_mfi_audio_internal.h b/subsys/bluetooth/controller/ll_sw/ull_mfi_audio_internal.h
@@ -1,9 +1,15 @@
 #ifndef ULL_MFI_AUDIO_INTERNAL_H
 #define ULL_MFI_AUDIO_INTERNAL_H
 
+typedef enum {
+  MFI_AUDIO_SLOT_TYPE_PRIMARY,
+  MFI_AUDIO_SLOT_TYPE_RETRANSMIT
+} mfi_audio_slot_type_t;
+
 // *** Whisper added for MFI.  Register a callback for when audio packets are
 // received so the BLE stack knows where to pass them
-typedef void (*mfi_audio_recv_cb_fn)(const uint8_t *data, uint8_t data_len);
+typedef void (*mfi_audio_recv_cb_fn)(const uint8_t *data, uint8_t data_len,
+                                     mfi_audio_slot_type_t slot_type);
 void ull_mfi_audio_register_cb(mfi_audio_recv_cb_fn mfi_audio_cb);
 
 #endif // ULL_MFI_AUDIO_INTERNAL_H