[BlueZ,v2,12/16] shared/bass: Add APIs to set/clear BIS sync bits

Commit Message

Iulia Tanasescu Aug. 29, 2024, 12:49 p.m. UTC

This adds shared/bass APIs to set/clear bits inside the BIS sync bitmask
of Broadcast Receive State characteristics. Notifications are sent to the
peers each time the characteristic is updated.
---
 src/shared/bass.c | 52 +++++++++++++++++++++++++++++++++++++++++++++++
 src/shared/bass.h |  2 ++
 2 files changed, 54 insertions(+)

Patch

diff --git a/src/shared/bass.c b/src/shared/bass.c
index 958b6f788..8f02086a1 100644
--- a/src/shared/bass.c
+++ b/src/shared/bass.c
@@ -1766,3 +1766,55 @@  int bt_bass_set_pa_sync(struct bt_bcast_src *bcast_src, uint8_t sync_state)
 
 	return 0;
 }
+
+int bt_bass_set_bis_sync(struct bt_bcast_src *bcast_src, uint8_t bis)
+{
+	struct iovec *iov;
+
+	for (uint8_t i = 0; i < bcast_src->num_subgroups; i++) {
+		struct bt_bass_subgroup_data *sgrp =
+				&bcast_src->subgroup_data[i];
+		uint32_t bitmask = 1 << (bis - 1);
+
+		if (sgrp->pending_bis_sync & bitmask) {
+			sgrp->bis_sync |= bitmask;
+
+			iov = bass_parse_bcast_src(bcast_src);
+			if (!iov)
+				return -ENOMEM;
+
+			bt_bass_notify_all(bcast_src->attr, iov);
+
+			free(iov->iov_base);
+			free(iov);
+		}
+	}
+
+	return 0;
+}
+
+int bt_bass_clear_bis_sync(struct bt_bcast_src *bcast_src, uint8_t bis)
+{
+	struct iovec *iov;
+
+	for (uint8_t i = 0; i < bcast_src->num_subgroups; i++) {
+		struct bt_bass_subgroup_data *sgrp =
+				&bcast_src->subgroup_data[i];
+		uint32_t bitmask = 1 << (bis - 1);
+
+		if (sgrp->pending_bis_sync & bitmask) {
+			sgrp->bis_sync &= ~bitmask;
+
+			iov = bass_parse_bcast_src(bcast_src);
+			if (!iov)
+				return -ENOMEM;
+
+			bt_bass_notify_all(bcast_src->attr, iov);
+
+			free(iov->iov_base);
+			free(iov);
+		}
+	}
+
+	return 0;
+}
diff --git a/src/shared/bass.h b/src/shared/bass.h
index a82d8f573..f3f708246 100644
--- a/src/shared/bass.h
+++ b/src/shared/bass.h
@@ -130,3 +130,5 @@  unsigned int bt_bass_cp_handler_register(struct bt_bass *bass,
 bool bt_bass_cp_handler_unregister(struct bt_bass *bass,
 				unsigned int id);
 int bt_bass_set_pa_sync(struct bt_bcast_src *bcast_src, uint8_t sync_state);
+int bt_bass_set_bis_sync(struct bt_bcast_src *bcast_src, uint8_t bis);
+int bt_bass_clear_bis_sync(struct bt_bcast_src *bcast_src, uint8_t bis);