123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163 |
- /****************************************************************************
- * wireless/bluetooth/bt_l2cap.h
- * L2CAP handling
- *
- * Copyright (C) 2018 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Ported from the Intel/Zephyr arduino101_firmware_source-v1.tar package
- * where the code was released with a compatible 3-clause BSD license:
- *
- * Copyright (c) 2016, Intel Corporation
- * All rights reserved.
- *
- * 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 the copyright holder 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 __WIRELESS_BLUETOOTH_BT_L2CAP_H
- #define __WIRELESS_BLUETOOTH_BT_L2CAP_H
- /****************************************************************************
- * Included Files
- ****************************************************************************/
- /****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
- #define BT_L2CAP_CID_ATT 0x0004
- #define BT_L2CAP_CID_LE_SIG 0x0005
- #define BT_L2CAP_CID_SMP 0x0006
- #define BT_L2CAP_REJ_NOT_UNDERSTOOD 0x0000
- #define BT_L2CAP_REJ_MTU_EXCEEDED 0x0001
- #define BT_L2CAP_REJ_INVALID_CID 0x0002
- #define BT_L2CAP_CMD_REJECT 0x01
- #define BT_L2CAP_CONN_PARAM_REQ 0x12
- #define BT_L2CAP_CONN_PARAM_RSP 0x13
- /****************************************************************************
- * Public Types
- ****************************************************************************/
- begin_packed_struct struct bt_l2cap_hdr_s
- {
- uint16_t len;
- uint16_t cid;
- } end_packed_struct;
- begin_packed_struct struct bt_l2cap_sig_hdr_s
- {
- uint8_t code;
- uint8_t ident;
- uint16_t len;
- } end_packed_struct;
- begin_packed_struct struct bt_l2cap_cmd_reject_s
- {
- uint16_t reason;
- uint8_t data[0];
- } end_packed_struct;
- begin_packed_struct struct bt_l2cap_conn_param_req_s
- {
- uint16_t min_interval;
- uint16_t max_interval;
- uint16_t latency;
- uint16_t timeout;
- } end_packed_struct;
- begin_packed_struct struct bt_l2cap_conn_param_rsp_s
- {
- uint16_t result;
- } end_packed_struct;
- struct bt_l2cap_chan_s
- {
- FAR struct bt_l2cap_chan_s *flink;
- FAR void *context;
- uint16_t cid;
- CODE void (*connected)(FAR struct bt_conn_s *conn,
- FAR void *context, uint16_t cid);
- CODE void (*disconnected)(FAR struct bt_conn_s *conn, FAR void *context,
- uint16_t cid);
- CODE void (*encrypt_change)(FAR struct bt_conn_s *conn,
- FAR void *context, uint16_t cid);
- CODE void (*receive)(FAR struct bt_conn_s *conn, FAR struct bt_buf_s *buf,
- FAR void *context, uint16_t cid);
- };
- /****************************************************************************
- * Public Function Prototypes
- ****************************************************************************/
- /* Register a fixed L2CAP channel handler for L2CAP */
- void bt_l2cap_chan_register(FAR struct bt_l2cap_chan_s *chan);
- /* Register a default L2CAP channel handle for L2CAP */
- void bt_l2cap_chan_default(FAR struct bt_l2cap_chan_s *chan);
- /* Notify L2CAP channels of a new connection */
- void bt_l2cap_connected(FAR struct bt_conn_s *conn);
- /* Notify L2CAP channels of a disconnect event */
- void bt_l2cap_disconnected(FAR struct bt_conn_s *conn);
- /* Notify L2CAP channels of a change in encryption state */
- void bt_l2cap_encrypt_change(FAR struct bt_conn_s *conn);
- /* Prepare an L2CAP PDU to be sent over a connection */
- FAR struct bt_buf_s *bt_l2cap_create_pdu(FAR struct bt_conn_s *conn);
- /* Send L2CAP PDU over a connection */
- void bt_l2cap_send(FAR struct bt_conn_s *conn, uint16_t cid,
- FAR struct bt_buf_s *buf);
- /* Receive a new L2CAP PDU from a connection */
- void bt_l2cap_receive(FAR struct bt_conn_s *conn, FAR struct bt_buf_s *buf);
- /* Perform connection parameter update request */
- void bt_l2cap_update_conn_param(FAR struct bt_conn_s *conn);
- /* Initialize L2CAP and supported channels */
- int bt_l2cap_init(void);
- #endif /* __WIRELESS_BLUETOOTH_BT_L2CAP_H */
|