save state if traffic or non-traffic burst at AACH time

the later code processing the SB/NB can then refer to that state.

2 files changed, 9 insertions, 0 deletions

diff --git a/src/tetra_common.h b/src/tetra_common.h
index 6c32db4..3169b8a 100644
--- a/src/tetra_common.h
+++ b/src/tetra_common.h
@@ -44,6 +44,9 @@ extern struct tetra_phy_state t_phy_state;
 
 struct tetra_mac_state {
 	struct llist_head voice_channels;
+	struct {
+		int is_traffic;
+	} cur_burst;
 };
 
 void tetra_mac_state_init(struct tetra_mac_state *tms);
diff --git a/src/tetra_upper_mac.c b/src/tetra_upper_mac.c
index f0d8c52..0bfc0e1 100644
--- a/src/tetra_upper_mac.c
+++ b/src/tetra_upper_mac.c
@@ -241,6 +241,12 @@ static void rx_aach(struct tetra_tmvsap_prim *tmvp, struct tetra_mac_state *tms)
 	if (aad.pres & TETRA_ACC_ASS_PRES_UL_USAGE)
 		printf("UL_USAGE: %s ", tetra_get_ul_usage_name(aad.ul_usage));
 
+	/* save the state whether the current burst is traffic or not */
+	if (aad.dl_usage > 3)
+		tms->cur_burst.is_traffic = 1;
+	else
+		tms->cur_burst.is_traffic = 0;
+
 	printf("\n");
 }