/*
 * Copyright 2019 The Chromium OS Authors. All rights reserved.
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef _BT_H_
#define _BT_H_

#include <string.h>
#include "types.h"

#define BT_MAC_LEN                6

struct bt_addr {
    uint8_t addr[BT_MAC_LEN];
    uint8_t type;
};
#define BT_ADDR_TYPE_EDR         0
#define BT_ADDR_TYPE_LE_PUBLIC   1
#define BT_ADDR_TYPE_LE_RANDOM   2
#define BT_ADDR_TYPE_NUM         3

#define BT_ADDR_IS_EDR(addr)     ((addr).type == BT_ADDR_TYPE_EDR)
#define BT_ADDR_IS_LE(addr)      ((addr).type != BT_ADDR_TYPE_EDR)

#define BT_RAND_ADDR_IS_STATIC(addr)             (((addr).addr[0] >> 6) == 3)
#define BT_RAND_ADDR_IS_RESOLVABLE_PRIV(addr)    (((addr).addr[0] >> 6) == 2)
#define BT_RAND_ADDR_IS_NONRESOLVABLE_PRIV(addr) (((addr).addr[0] >> 6) == 0)


#define BT_LE_CONN_INTERVAL_MIN  6
#define BT_LE_CONN_INTERVAL_MAX  3200
#define BT_LE_LATENCY_MAX        499
#define BT_LE_TIMEOUT_MIN        10
#define BT_LE_TIMEOUT_MAX        3200

/* calc minimum valid LE timeout for given other parems */
#define BT_LE_TIMEOUT_MIN_VALID(int, lat)    (((int) * ((lat) + 1) * 2 + 7) / 8)


/* these not documented anywhere, for some reason */
#define BT_TRANSPORT_BR_EDR     1
#define BT_TRANSPORT_LE         2

int ba2str(const struct bt_addr* bdaddr, char* buf, size_t len);
int ba2strlc(const struct bt_addr* bdaddr, char* buf, size_t len);

#endif