mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-08-19 04:45:21 +00:00
a983eff168
This adds bt_l2cap_chan_disconnect which can be used to disconnect
dynamic channels resulting in the following trace:
< ACL Data TX: Handle 3585 flags 0x00 dlen 12
LE L2CAP: Disconnection Request (0x06) ident 2 len 4
Destination CID: 64
Source CID: 64
> ACL Data RX: Handle 3585 flags 0x02 dlen 12
LE L2CAP: Disconnection Response (0x07) ident 2 len 4
Destination CID: 64
Source CID: 64
Change-Id: I77ec29c8879a330b7f73e217621436045fa5163e
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
135 lines
4.1 KiB
C
135 lines
4.1 KiB
C
/** @file
|
|
* @brief Bluetooth L2CAP handling
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2015 Intel Corporation
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1) Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2) Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3) Neither the name of Intel Corporation nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
#ifndef __BT_L2CAP_H
|
|
#define __BT_L2CAP_H
|
|
|
|
#if defined(CONFIG_BLUETOOTH_CENTRAL) || defined(CONFIG_BLUETOOTH_PERIPHERAL)
|
|
#include <net/buf.h>
|
|
#include <bluetooth/conn.h>
|
|
|
|
/** @brief L2CAP Endpoint structure. */
|
|
struct bt_l2cap_endpoint {
|
|
/** Endpoint CID */
|
|
uint16_t cid;
|
|
/** Endpoint Maximum PDU payload Size */
|
|
uint16_t mps;
|
|
/** Endpoint Maximum Transmission Unit */
|
|
uint16_t mtu;
|
|
/** Endpoint credits */
|
|
uint16_t credits;
|
|
};
|
|
|
|
/** @brief L2CAP Channel structure. */
|
|
struct bt_l2cap_chan {
|
|
/** Channel connection reference */
|
|
struct bt_conn *conn;
|
|
|
|
/** Channel operations reference */
|
|
struct bt_l2cap_chan_ops *ops;
|
|
|
|
/** Channel Transmission Endpoint */
|
|
struct bt_l2cap_endpoint tx;
|
|
/** Channel Receiving Endpoint */
|
|
struct bt_l2cap_endpoint rx;
|
|
|
|
uint8_t _ident;
|
|
|
|
struct bt_l2cap_chan *_next;
|
|
};
|
|
|
|
/** @brief L2CAP Channel operations structure. */
|
|
struct bt_l2cap_chan_ops {
|
|
/** Channel connected callback */
|
|
void (*connected)(struct bt_l2cap_chan *chan);
|
|
/** Channel disconnected callback */
|
|
void (*disconnected)(struct bt_l2cap_chan *chan);
|
|
/** Channel encrypt_change callback */
|
|
void (*encrypt_change)(struct bt_l2cap_chan *chan);
|
|
|
|
/** Channel recv callback */
|
|
void (*recv)(struct bt_l2cap_chan *chan,
|
|
struct net_buf *buf);
|
|
};
|
|
|
|
#if defined(CONFIG_BLUETOOTH_L2CAP_DYNAMIC_CHANNEL)
|
|
|
|
/** @brief L2CAP Server structure. */
|
|
struct bt_l2cap_server {
|
|
/** Server PSM */
|
|
uint16_t psm;
|
|
|
|
/** Server accept callack */
|
|
int (*accept)(struct bt_conn *conn, struct bt_l2cap_chan **chan);
|
|
|
|
struct bt_l2cap_server *_next;
|
|
};
|
|
|
|
/** @brief Register L2CAP server.
|
|
*
|
|
* Register L2CAP server for a PSM.
|
|
*
|
|
* @param server Server structure.
|
|
*
|
|
* @return 0 in case of success or negative value in case of error.
|
|
*/
|
|
int bt_l2cap_server_register(struct bt_l2cap_server *server);
|
|
|
|
/** @brief Connect L2CAP channel
|
|
*
|
|
* Connect L2CAP channel by PSM.
|
|
*
|
|
* @param conn Connection object.
|
|
* @param chan Channel object.
|
|
* @param psm Channel PSM to connect to.
|
|
*
|
|
* @return 0 in case of success or negative value in case of error.
|
|
*/
|
|
int bt_l2cap_chan_connect(struct bt_conn *conn, struct bt_l2cap_chan *chan,
|
|
uint16_t psm);
|
|
|
|
/** @brief Disconnect L2CAP channel
|
|
*
|
|
* Disconnect L2CAP channel, if the connection is pending it will be
|
|
* canceled.
|
|
*
|
|
* @param chan Channel object.
|
|
*
|
|
* @return 0 in case of success or negative value in case of error.
|
|
*/
|
|
int bt_l2cap_chan_disconnect(struct bt_l2cap_chan *chan);
|
|
|
|
#endif /* CONFIG_BLUETOOTH_L2CAP_DYNAMIC_CHANNEL */
|
|
#endif /* CONFIG_BLUETOOTH_CENTRAL || CONFIG_BLUETOOTH_PERIPHERAL */
|
|
#endif /* __BT_L2CAP_H */
|