[PATCHv3 18/18] Bluetooth: Start channel move when socket option is changed
From: Mat Martineau <hidden>
Date: 2012-10-18 17:58:50
Subsystem:
bluetooth subsystem, the rest · Maintainers:
Marcel Holtmann, Luiz Augusto von Dentz, Linus Torvalds
Channel moves are triggered by changes to the BT_CHANNEL_POLICY sockopt when an ERTM or streaming-mode channel is connected. Moves are only started if enable_hs is true. Signed-off-by: Mat Martineau <redacted> Acked-by: Marcel Holtmann <marcel@holtmann.org> --- include/net/bluetooth/l2cap.h | 1 + net/bluetooth/l2cap_core.c | 20 ++++++++++++++++++++ net/bluetooth/l2cap_sock.c | 5 +++++ 3 files changed, 26 insertions(+)
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index b4c3c65..49783e9 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h@@ -809,5 +809,6 @@ void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan); void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan); void l2cap_chan_del(struct l2cap_chan *chan, int err); void l2cap_send_conn_req(struct l2cap_chan *chan); +void l2cap_move_start(struct l2cap_chan *chan); #endif /* __L2CAP_H */
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 8fa46de..b3d3f4f 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c@@ -4452,6 +4452,26 @@ static void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan, } } +void l2cap_move_start(struct l2cap_chan *chan) +{ + BT_DBG("chan %p", chan); + + if (chan->local_amp_id == 0) { + if (chan->chan_policy != BT_CHANNEL_POLICY_AMP_PREFERRED) + return; + chan->move_role = L2CAP_MOVE_ROLE_INITIATOR; + chan->move_state = L2CAP_MOVE_WAIT_PREPARE; + /* Placeholder - start physical link setup */ + } else { + chan->move_role = L2CAP_MOVE_ROLE_INITIATOR; + chan->move_state = L2CAP_MOVE_WAIT_RSP_SUCCESS; + chan->move_id = 0; + l2cap_move_start(chan); + l2cap_send_move_chan_req(chan, 0); + __set_chan_timer(chan, L2CAP_MOVE_TIMEOUT); + } +} + static void l2cap_do_create(struct l2cap_chan *chan, int result, u8 local_amp_id, u8 remote_amp_id) {
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 5fae2bd..7cb4d73 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c@@ -735,6 +735,11 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, } chan->chan_policy = (u8) opt; + + if (sk->sk_state == BT_CONNECTED && + chan->move_role == L2CAP_MOVE_ROLE_NONE) + l2cap_move_start(chan); + break; default:
--
1.7.12.3
--
Mat Martineau
Employee of Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation