From 80afeb6cec3739d3167e1fef6214224f0f588f13 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Mon, 23 Jun 2014 12:18:51 +0200 Subject: [PATCH] Bluetooth: Add support LE slave connection update procedure When the current LE connection parameters of a slave connection do not match up with the controller defined values, then trigger the connection update procedure to allow adjusting them. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg --- net/bluetooth/l2cap_core.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index cbf6b9d1c40..565afb78296 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1481,6 +1481,25 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn) if (hci_blacklist_lookup(hcon->hdev, &hcon->dst, dst_type)) return; + /* For LE slave connections, make sure the connection interval + * is in the range of the minium and maximum interval that has + * been configured for this connection. If not, then trigger + * the connection update procedure. + */ + if (!(hcon->link_mode & HCI_LM_MASTER) && + (hcon->le_conn_interval < hcon->le_conn_min_interval || + hcon->le_conn_interval > hcon->le_conn_max_interval)) { + struct l2cap_conn_param_update_req req; + + req.min = cpu_to_le16(hcon->le_conn_min_interval); + req.max = cpu_to_le16(hcon->le_conn_max_interval); + req.latency = cpu_to_le16(hcon->le_conn_latency); + req.to_multiplier = cpu_to_le16(hcon->le_supv_timeout); + + l2cap_send_cmd(conn, l2cap_get_ident(conn), + L2CAP_CONN_PARAM_UPDATE_REQ, sizeof(req), &req); + } + l2cap_chan_lock(pchan); chan = pchan->ops->new_connection(pchan); -- 2.46.0