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authorAndrei Emeltchenko <andrei.emeltchenko@intel.com>2012-09-27 17:26:21 +0300
committerGustavo Padovan <gustavo.padovan@collabora.co.uk>2012-09-27 17:31:52 -0300
commit2766be48a7181d7f2a84831ca7e7be248fb6fdb5 (patch)
tree9d5554696f17b42a2724b652928450f745cb00a8 /net/bluetooth/a2mp.c
parent93c284ee901f7d7bdd09087e92abefb7496c3777 (diff)
downloadlinux-2766be48a7181d7f2a84831ca7e7be248fb6fdb5.tar.bz2
Bluetooth: A2MP: Add fallback to normal l2cap init sequence
When there is no remote AMP controller found fallback to normal L2CAP sequence. Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Diffstat (limited to 'net/bluetooth/a2mp.c')
-rw-r--r--net/bluetooth/a2mp.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 773e8fc41670..28d1246958be 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -180,6 +180,7 @@ static int a2mp_discover_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
u16 len = le16_to_cpu(hdr->len);
struct a2mp_cl *cl;
u16 ext_feat;
+ bool found = false;
if (len < sizeof(*rsp))
return -EINVAL;
@@ -210,6 +211,7 @@ static int a2mp_discover_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
if (cl->id != HCI_BREDR_ID && cl->type == HCI_AMP) {
struct a2mp_info_req req;
+ found = true;
req.id = cl->id;
a2mp_send(mgr, A2MP_GETINFO_REQ, __next_ident(mgr),
sizeof(req), &req);
@@ -219,6 +221,32 @@ static int a2mp_discover_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
cl = (void *) skb_pull(skb, sizeof(*cl));
}
+ /* Fall back to L2CAP init sequence */
+ if (!found) {
+ struct l2cap_conn *conn = mgr->l2cap_conn;
+ struct l2cap_chan *chan;
+
+ mutex_lock(&conn->chan_lock);
+
+ list_for_each_entry(chan, &conn->chan_l, list) {
+
+ BT_DBG("chan %p state %s", chan,
+ state_to_string(chan->state));
+
+ if (chan->chan_type == L2CAP_CHAN_CONN_FIX_A2MP)
+ continue;
+
+ l2cap_chan_lock(chan);
+
+ if (chan->state == BT_CONNECT)
+ l2cap_send_conn_req(chan);
+
+ l2cap_chan_unlock(chan);
+ }
+
+ mutex_unlock(&conn->chan_lock);
+ }
+
return 0;
}