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Bluetooth: A2MP: AMP Manager basic functions

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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>
This commit is contained in:
Andrei Emeltchenko 2012-05-29 13:59:02 +03:00 committed by Johan Hedberg
parent 466f8004f3
commit 9740e49d17
4 changed files with 89 additions and 0 deletions
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30
include/net/bluetooth/a2mp.h Normal file
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@ -0,0 +1,30 @@
/*
Copyright (c) 2010,2011 Code Aurora Forum. All rights reserved.
Copyright (c) 2011,2012 Intel Corp.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 and
only version 2 as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
*/
#ifndef __A2MP_H
#define __A2MP_H
struct amp_mgr {
struct l2cap_conn *l2cap_conn;
struct l2cap_chan *a2mp_chan;
struct kref kref;
__u8 ident;
__u8 handle;
unsigned long flags;
};
void amp_mgr_get(struct amp_mgr *mgr);
int amp_mgr_put(struct amp_mgr *mgr);
#endif /* __A2MP_H */

1
include/net/bluetooth/hci_core.h
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@ -332,6 +332,7 @@ struct hci_conn {
void *l2cap_data;
void *sco_data;
void *smp_conn;
struct amp_mgr *amp_mgr;
struct hci_conn *link;

54
net/bluetooth/a2mp.c
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@ -15,6 +15,7 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/l2cap.h>
#include <net/bluetooth/a2mp.h>
static struct l2cap_ops a2mp_chan_ops = {
.name = "L2CAP A2MP channel",
@ -67,3 +68,56 @@ static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn)
return chan;
}
/* AMP Manager functions */
void amp_mgr_get(struct amp_mgr *mgr)
{
BT_DBG("mgr %p", mgr);
kref_get(&mgr->kref);
}
static void amp_mgr_destroy(struct kref *kref)
{
struct amp_mgr *mgr = container_of(kref, struct amp_mgr, kref);
BT_DBG("mgr %p", mgr);
kfree(mgr);
}
int amp_mgr_put(struct amp_mgr *mgr)
{
BT_DBG("mgr %p", mgr);
return kref_put(&mgr->kref, &amp_mgr_destroy);
}
static struct amp_mgr *amp_mgr_create(struct l2cap_conn *conn)
{
struct amp_mgr *mgr;
struct l2cap_chan *chan;
mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
if (!mgr)
return NULL;
BT_DBG("conn %p mgr %p", conn, mgr);
mgr->l2cap_conn = conn;
chan = a2mp_chan_open(conn);
if (!chan) {
kfree(mgr);
return NULL;
}
mgr->a2mp_chan = chan;
chan->data = mgr;
conn->hcon->amp_mgr = mgr;
kref_init(&mgr->kref);
return mgr;
}

4
net/bluetooth/hci_conn.c
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@ -28,6 +28,7 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/a2mp.h>
static void hci_le_connect(struct hci_conn *conn)
{
@ -411,6 +412,9 @@ int hci_conn_del(struct hci_conn *conn)
hci_chan_list_flush(conn);
if (conn->amp_mgr)
amp_mgr_put(conn->amp_mgr);
hci_conn_hash_del(hdev, conn);
if (hdev->notify)
hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);