/* $DragonFly: src/sys/netbt/bluetooth.h,v 1.2 2008/03/18 13:41:42 hasso Exp $ */
/* $OpenBSD: src/sys/netbt/bluetooth.h,v 1.5 2008/02/24 21:34:48 uwe Exp $ */
/* $NetBSD: bluetooth.h,v 1.6 2007/09/17 01:23:17 rillig Exp $ */

/*-
 * Copyright (c) 2005 Iain Hibbert.
 * Copyright (c) 2006 Itronix Inc.
 * 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. The name of Itronix Inc. may not be used to endorse
 *    or promote products derived from this software without specific
 *    prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``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 ITRONIX INC. 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 _NETBT_BLUETOOTH_H_
#define _NETBT_BLUETOOTH_H_

#include <sys/socket.h>
#include <sys/types.h>

/*
 * Bluetooth Address Family Protocol Numbers
 */
#define BTPROTO_HCI     1
#define BTPROTO_L2CAP   2
#define BTPROTO_RFCOMM  3
#define BTPROTO_SCO     4

/* All sizes are in bytes */
#define BLUETOOTH_BDADDR_SIZE   6

/*
 * Bluetooth device address
 */
typedef struct {
        uint8_t b[BLUETOOTH_BDADDR_SIZE];
} __attribute__ ((packed)) bdaddr_t;

/*
 * bdaddr utility functions
 */
static __inline int
bdaddr_same(const bdaddr_t *a, const bdaddr_t *b)
{

        return (a->b[0] == b->b[0] && a->b[1] == b->b[1]
                && a->b[2] == b->b[2] && a->b[3] == b->b[3]
                && a->b[4] == b->b[4] && a->b[5] == b->b[5]);
}

static __inline int
bdaddr_any(const bdaddr_t *a)
{

        return (a->b[0] == 0 && a->b[1] == 0 && a->b[2] == 0
                && a->b[3] == 0 && a->b[4] == 0 && a->b[5] == 0);
}

static __inline void
bdaddr_copy(bdaddr_t *d, const bdaddr_t *s)
{

        d->b[0] = s->b[0];
        d->b[1] = s->b[1];
        d->b[2] = s->b[2];
        d->b[3] = s->b[3];
        d->b[4] = s->b[4];
        d->b[5] = s->b[5];
}

/*
 * Socket address used by Bluetooth protocols
 */
struct sockaddr_bt {
        uint8_t         bt_len;
        sa_family_t     bt_family;
        bdaddr_t        bt_bdaddr;
        uint16_t        bt_psm;
        uint8_t         bt_channel;
        uint8_t         bt_zero[5];
};

/* Note: this is actually 6 bytes including terminator */
#define BDADDR_ANY      ((const bdaddr_t *) "\000\000\000\000\000")

#ifdef _KERNEL
#include <sys/bus.h>

#ifdef MALLOC_DECLARE
MALLOC_DECLARE(M_BLUETOOTH);
#endif

/*
 * Bluetooth Protocol API callback methods
 */
struct mbuf;
struct btproto {
        void (*connecting)(void *);
        void (*connected)(void *);
        void (*disconnected)(void *, int);
        void *(*newconn)(void *, struct sockaddr_bt *, struct sockaddr_bt *);
        void (*complete)(void *, int);
        void (*linkmode)(void *, int);
        void (*input)(void *, struct mbuf *);
};

/*
 * Debugging stuff
 */
#ifdef BLUETOOTH_DEBUG
extern int bluetooth_debug;
# define DPRINTF(fmt, args...)  do {                    \
        if (bluetooth_debug)                            \
                kprintf("%s: "fmt, __func__ , ##args);  \
} while (/* CONSTCOND */0)

# define DPRINTFN(n, fmt, args...)      do {            \
        if (bluetooth_debug > (n))                      \
                kprintf("%s: "fmt, __func__ , ##args);  \
} while (/* CONSTCOND */0)

# define UNKNOWN(value)                 \
                kprintf("%s: %s = %d unknown!\n", __func__, #value, (value));
#else
# define DPRINTF(...) ((void)0)
# define DPRINTFN(...) ((void)0)
# define UNKNOWN(x) ((void)0)
#endif  /* BLUETOOTH_DEBUG */

#define sbspace(sb) \
    ((long) imin((int)((sb)->ssb_hiwat - (sb)->ssb_cc), \
         (int)((sb)->ssb_mbmax - (sb)->ssb_mbcnt)))
#endif  /* _KERNEL */

#define letoh16(x)              le16toh(x)
#define letoh32(x)              le32toh(x)

#endif  /* _NETBT_BLUETOOTH_H_ */