Bluetooth: A2MP: AMP Manager basic functions
Define AMP Manager and some basic functions. Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
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include/net/bluetooth/a2mp.h
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30
include/net/bluetooth/a2mp.h
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/*
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Copyright (c) 2010,2011 Code Aurora Forum. All rights reserved.
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Copyright (c) 2011,2012 Intel Corp.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 2 and
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only version 2 as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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*/
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#ifndef __A2MP_H
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#define __A2MP_H
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struct amp_mgr {
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struct l2cap_conn *l2cap_conn;
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struct l2cap_chan *a2mp_chan;
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struct kref kref;
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__u8 ident;
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__u8 handle;
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unsigned long flags;
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};
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void amp_mgr_get(struct amp_mgr *mgr);
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int amp_mgr_put(struct amp_mgr *mgr);
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#endif /* __A2MP_H */
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@ -332,6 +332,7 @@ struct hci_conn {
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void *l2cap_data;
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void *sco_data;
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void *smp_conn;
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struct amp_mgr *amp_mgr;
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struct hci_conn *link;
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@ -15,6 +15,7 @@
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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#include <net/bluetooth/l2cap.h>
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#include <net/bluetooth/a2mp.h>
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static struct l2cap_ops a2mp_chan_ops = {
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.name = "L2CAP A2MP channel",
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@ -67,3 +68,56 @@ static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn)
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return chan;
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}
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/* AMP Manager functions */
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void amp_mgr_get(struct amp_mgr *mgr)
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{
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BT_DBG("mgr %p", mgr);
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kref_get(&mgr->kref);
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}
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static void amp_mgr_destroy(struct kref *kref)
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{
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struct amp_mgr *mgr = container_of(kref, struct amp_mgr, kref);
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BT_DBG("mgr %p", mgr);
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kfree(mgr);
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}
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int amp_mgr_put(struct amp_mgr *mgr)
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{
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BT_DBG("mgr %p", mgr);
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return kref_put(&mgr->kref, &_mgr_destroy);
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}
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static struct amp_mgr *amp_mgr_create(struct l2cap_conn *conn)
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{
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struct amp_mgr *mgr;
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struct l2cap_chan *chan;
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mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
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if (!mgr)
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return NULL;
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BT_DBG("conn %p mgr %p", conn, mgr);
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mgr->l2cap_conn = conn;
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chan = a2mp_chan_open(conn);
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if (!chan) {
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kfree(mgr);
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return NULL;
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}
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mgr->a2mp_chan = chan;
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chan->data = mgr;
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conn->hcon->amp_mgr = mgr;
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kref_init(&mgr->kref);
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return mgr;
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}
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@ -28,6 +28,7 @@
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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#include <net/bluetooth/a2mp.h>
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static void hci_le_connect(struct hci_conn *conn)
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{
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@ -411,6 +412,9 @@ int hci_conn_del(struct hci_conn *conn)
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hci_chan_list_flush(conn);
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if (conn->amp_mgr)
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amp_mgr_put(conn->amp_mgr);
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hci_conn_hash_del(hdev, conn);
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if (hdev->notify)
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hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);
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