Bluetooth: AMP: Process Logical Link complete evt

After receiving HCI Logical Link Complete event finish EFS
configuration by sending L2CAP Conf Response with success code.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

3 files changed, 46 insertions, 2 deletions

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 49783e948856..24c61ef933b5 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -810,5 +810,7 @@ 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);
+void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan,
+                       u8 status);
 
 #endif /* __L2CAP_H */
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index d2c45591f06d..aa79ed278959 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -3695,6 +3695,44 @@ static void hci_phy_link_complete_evt(struct hci_dev *hdev,
         }
 }
 
+static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+        struct hci_ev_logical_link_complete *ev = (void *) skb->data;
+        struct hci_conn *hcon;
+        struct hci_chan *hchan;
+        struct amp_mgr *mgr;
+
+        BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
+               hdev->name, le16_to_cpu(ev->handle), ev->phy_handle,
+               ev->status);
+
+        hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
+        if (!hcon)
+                return;
+
+        /* Create AMP hchan */
+        hchan = hci_chan_create(hcon);
+        if (!hchan)
+                return;
+
+        hchan->handle = le16_to_cpu(ev->handle);
+
+        BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
+
+        mgr = hcon->amp_mgr;
+        if (mgr && mgr->bredr_chan) {
+                struct l2cap_chan *bredr_chan = mgr->bredr_chan;
+
+                l2cap_chan_lock(bredr_chan);
+
+                bredr_chan->conn->mtu = hdev->block_mtu;
+                l2cap_logical_cfm(bredr_chan, hchan, 0);
+                hci_conn_hold(hcon);
+
+                l2cap_chan_unlock(bredr_chan);
+        }
+}
+
 static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
         struct hci_ev_le_conn_complete *ev = (void *) skb->data;
@@ -4026,6 +4064,10 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
                 hci_phy_link_complete_evt(hdev, skb);
                 break;
 
+        case HCI_EV_LOGICAL_LINK_COMPLETE:
+                hci_loglink_complete_evt(hdev, skb);
+                break;
+
         case HCI_EV_NUM_COMP_BLOCKS:
                 hci_num_comp_blocks_evt(hdev, skb);
                 break;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 600d8080f234..d1728af8e84f 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -4428,8 +4428,8 @@ static void l2cap_logical_finish_move(struct l2cap_chan *chan,
 }
 
 /* Call with chan locked */
-static void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan,
-                              u8 status)
+void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan,
+                       u8 status)
 {
         BT_DBG("chan %p, hchan %p, status %d", chan, hchan, status);