diff options
| author | Iulia Tanasescu <iulia.tanasescu@nxp.com> | 2024-11-01 10:23:36 +0200 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2024-11-14 15:36:15 -0500 |
| commit | 4a5e0ba68676b3a77298cf646cd2b39c94fbd2f5 (patch) | |
| tree | 9684454a7ed18ba643c39248fa055dfe1f029356 /net/bluetooth/hci_event.c | |
| parent | 2dc98ac1cb9ce8a8ab9967aaaf0abb3496e7fedb (diff) | |
Bluetooth: ISO: Do not emit LE PA Create Sync if previous is pending
The Bluetooth Core spec does not allow a LE PA Create sync command to be
sent to Controller if another one is pending (Vol 4, Part E, page 2493).
In order to avoid this issue, the HCI_CONN_CREATE_PA_SYNC was added
to mark that the LE PA Create Sync command has been sent for a hcon.
Once the PA Sync Established event is received, the hcon flag is
erased and the next pending hcon is handled.
Signed-off-by: Iulia Tanasescu <iulia.tanasescu@nxp.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'net/bluetooth/hci_event.c')
| -rw-r--r-- | net/bluetooth/hci_event.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 65f5ed2ded70..fd269fcabc2e 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -6352,7 +6352,7 @@ static void hci_le_pa_sync_estabilished_evt(struct hci_dev *hdev, void *data, struct hci_ev_le_pa_sync_established *ev = data; int mask = hdev->link_mode; __u8 flags = 0; - struct hci_conn *pa_sync; + struct hci_conn *pa_sync, *conn; bt_dev_dbg(hdev, "status 0x%2.2x", ev->status); @@ -6360,6 +6360,20 @@ static void hci_le_pa_sync_estabilished_evt(struct hci_dev *hdev, void *data, hci_dev_clear_flag(hdev, HCI_PA_SYNC); + conn = hci_conn_hash_lookup_sid(hdev, ev->sid, &ev->bdaddr, + ev->bdaddr_type); + if (!conn) { + bt_dev_err(hdev, + "Unable to find connection for dst %pMR sid 0x%2.2x", + &ev->bdaddr, ev->sid); + goto unlock; + } + + clear_bit(HCI_CONN_CREATE_PA_SYNC, &conn->flags); + + conn->sync_handle = le16_to_cpu(ev->handle); + conn->sid = HCI_SID_INVALID; + mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ISO_LINK, &flags); if (!(mask & HCI_LM_ACCEPT)) { hci_le_pa_term_sync(hdev, ev->handle); @@ -6386,6 +6400,9 @@ static void hci_le_pa_sync_estabilished_evt(struct hci_dev *hdev, void *data, } unlock: + /* Handle any other pending PA sync command */ + hci_pa_create_sync_pending(hdev); + hci_dev_unlock(hdev); } |