Bluetooth: A2MP: Process A2MP Disc Physlink Request

Placeholder for A2MP Disconnect Physlink Request.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

net/bluetooth/a2mp.c

@@ -280,6 +280,39 @@ static int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
 	return 0;
 }
 
+static int a2mp_discphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
+				 struct a2mp_cmd *hdr)
+{
+	struct a2mp_physlink_req *req = (void *) skb->data;
+	struct a2mp_physlink_rsp rsp;
+	struct hci_dev *hdev;
+
+	if (le16_to_cpu(hdr->len) < sizeof(*req))
+		return -EINVAL;
+
+	BT_DBG("local_id %d remote_id %d", req->local_id, req->remote_id);
+
+	rsp.local_id = req->remote_id;
+	rsp.remote_id = req->local_id;
+	rsp.status = A2MP_STATUS_SUCCESS;
+
+	hdev = hci_dev_get(req->local_id);
+	if (!hdev) {
+		rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
+		goto send_rsp;
+	}
+
+	/* TODO Disconnect Phys Link here */
+
+	hci_dev_put(hdev);
+
+send_rsp:
+	a2mp_send(mgr, A2MP_DISCONNPHYSLINK_RSP, hdr->ident, sizeof(rsp), &rsp);
+
+	skb_pull(skb, sizeof(*req));
+	return 0;
+}
+
 /* Handle A2MP signalling */
 static int a2mp_chan_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
 {
@@ -330,6 +363,9 @@ static int a2mp_chan_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
 			break;
 
 		case A2MP_DISCONNPHYSLINK_REQ:
+			err = a2mp_discphyslink_req(mgr, skb, hdr);
+			break;
+
 		case A2MP_CHANGE_RSP:
 		case A2MP_DISCOVER_RSP:
 		case A2MP_GETINFO_RSP: