nes-proj/os/net/mac/ble/ble-l2cap.h

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/*
* Copyright (c) 2017, Graz University of Technology
* 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.
*/
/**
* \file
* MAC layer that implements BLE L2CAP credit-based flow control
* channels to support IPv6 over BLE (RFC 7668)
*
* \author
* Michael Spoerk <michael.spoerk@tugraz.at>
*/
/*---------------------------------------------------------------------------*/
#ifndef BLE_L2CAP_H_
#define BLE_L2CAP_H_
#include "contiki.h"
#include "net/mac/mac.h"
#include "dev/radio.h"
/*---------------------------------------------------------------------------*/
/* device name used for BLE advertisement */
#ifdef BLE_CONF_DEVICE_NAME
#define BLE_DEVICE_NAME BLE_CONF_DEVICE_NAME
#else
#define BLE_DEVICE_NAME "BLE device name"
#endif
/* BLE advertisement in milliseconds */
#ifdef BLE_CONF_ADV_INTERVAL
#define BLE_ADV_INTERVAL BLE_CONF_ADV_INTERVAL
#else
#define BLE_ADV_INTERVAL 50
#endif
#define BLE_SLAVE_CONN_INTERVAL_MIN 0x0150
#define BLE_SLAVE_CONN_INTERVAL_MAX 0x01F0
#define L2CAP_SIGNAL_CHANNEL 0x0005
#define L2CAP_FLOW_CHANNEL 0x0041
#define L2CAP_CODE_CONN_UPDATE_REQ 0x12
#define L2CAP_CODE_CONN_UPDATE_RSP 0x13
#define L2CAP_CODE_CONN_REQ 0x14
#define L2CAP_CODE_CONN_RSP 0x15
#define L2CAP_CODE_CREDIT 0x16
#define L2CAP_IPSP_PSM 0x0023
/* the maximum MTU size of the L2CAP channel */
#ifdef BLE_L2CAP_CONF_NODE_MTU
#define BLE_L2CAP_NODE_MTU BLE_L2CAP_CONF_NODE_MTU
#else
#define BLE_L2CAP_NODE_MTU 1280
#endif
/* the max. supported L2CAP fragment length */
#ifdef BLE_L2CAP_CONF_NODE_FRAG_LEN
#define BLE_L2CAP_NODE_FRAG_LEN BLE_L2CAP_CONF_NODE_FRAG_LEN
#else
#ifdef BLE_MODE_CONF_CONN_MAX_PACKET_SIZE
#define BLE_L2CAP_NODE_FRAG_LEN BLE_MODE_CONF_CONN_MAX_PACKET_SIZE
#else
#define BLE_L2CAP_NODE_FRAG_LEN 256
#endif
#endif
#define L2CAP_CREDIT_NEW (BLE_L2CAP_NODE_MTU / BLE_L2CAP_NODE_FRAG_LEN)
#define L2CAP_CREDIT_THRESHOLD 2
#define L2CAP_INIT_INTERVAL (2 * CLOCK_SECOND)
/* BLE connection interval in milliseconds */
#ifdef BLE_CONF_CONNECTION_INTERVAL
#define CONNECTION_INTERVAL_MS BLE_CONF_CONNECTION_INTERVAL
#else
#define CONNECTION_INTERVAL_MS 125
#endif
/* BLE slave latency */
#ifdef BLE_CONF_CONNECTION_SLAVE_LATENCY
#define CONNECTION_SLAVE_LATENCY BLE_CONF_CONNECTION_SLAVE_LATENCY
#else
#define CONNECTION_SLAVE_LATENCY 0
#endif
/* BLE supervision timeout */
#define CONNECTION_TIMEOUT 42
#define L2CAP_FIRST_HEADER_SIZE 6
#define L2CAP_SUBSEQ_HEADER_SIZE 4
#if UIP_CONF_ROUTER
#ifdef BLE_MODE_CONF_MAX_CONNECTIONS
#define L2CAP_CHANNELS BLE_MODE_CONF_MAX_CONNECTIONS
#else
#define L2CAP_CHANNELS 1
#endif
#else
#define L2CAP_CHANNELS 1
#endif
extern const struct mac_driver ble_l2cap_driver;
#endif /* BLE_L2CAP_H_ */