commit 88705be89b8d03de3df256bf5ade7a3b24a22866
author Vinayak Kariappa Chettimada <vich@nordicsemi.no> Sun Sep 18 07:08:18 2022 +0530
committer Fabio Baltieri <fabio.baltieri@gmail.com> Fri Sep 23 12:47:17 2022 +0000
tree 3531efe7e3f6a11a96b924651fb974f97b628c9d
parent 7249fbe584b2eb468d21a150001dd0ab417fc179

Bluetooth: Controller: Fix BIS max PDU size used in calc of sub_interval

Fix BIS max PDU size used in calc of sub_interval, use the
minimum of supported maximum BIS PDU size and the requested
SDU size. This will avoid wasted air time between subevents
when SDU size is less than maximum supported PDU size, where
only 150 us tIFS is mandatory between subevents.

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>

subsys/bluetooth/controller/ll_sw/ull_adv_iso.c

diff --git a/subsys/bluetooth/controller/ll_sw/ull_adv_iso.c b/subsys/bluetooth/controller/ll_sw/ull_adv_iso.c
index 3ac986b..a5b6315 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_adv_iso.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_adv_iso.c
@@ -192,7 +192,7 @@
 	/* TODO: parameters to ULL if only accessed by ULL */
 	lll_adv_iso = &adv_iso->lll;
 	lll_adv_iso->handle = big_handle;
-	lll_adv_iso->max_pdu = LL_BIS_OCTETS_TX_MAX;
+	lll_adv_iso->max_pdu = MIN(LL_BIS_OCTETS_TX_MAX, max_sdu);
 	lll_adv_iso->phy = phy;
 	lll_adv_iso->phy_flags = PHY_FLAGS_S8;