commit 3f7a56c4ff438f4727439cb048034f56320dd228
author Mat Martineau <mathewm@codeaurora.org> Tue Oct 23 15:24:23 2012 -0700
committer Gustavo Padovan <gustavo.padovan@collabora.co.uk> Wed Oct 24 00:26:30 2012 -0200
tree bdd3ce761c4055bed50b3f301e1de2b745acb1af
parent e6a3ee6e8aa27d0a38be7ead0c1624041697ffbc

Bluetooth: Start channel move when socket option is changed

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 <mathewm@codeaurora.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

include/net/bluetooth/l2cap.h

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_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 */

net/bluetooth/l2cap_core.c

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 93f1ebb..fae0c70 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -4453,6 +4453,25 @@
 	}
 }
 
+void l2cap_move_start(struct l2cap_chan *chan)
+{
+	BT_DBG("chan %p", chan);
+
+	if (chan->local_amp_id == HCI_BREDR_ID) {
+		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_setup(chan);
+		l2cap_send_move_chan_req(chan, 0);
+	}
+}
+
 static void l2cap_do_create(struct l2cap_chan *chan, int result,
 			    u8 local_amp_id, u8 remote_amp_id)
 {

net/bluetooth/l2cap_sock.c

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 89f1472..1bcfb84 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -736,6 +736,11 @@
 		}
 
 		chan->chan_policy = (u8) opt;
+
+		if (sk->sk_state == BT_CONNECTED &&
+		    chan->move_role == L2CAP_MOVE_ROLE_NONE)
+			l2cap_move_start(chan);
+
 		break;
 
 	default: