bluetooth.h

linux下的蓝牙协议栈

/*
 *
 *  BlueZ - Bluetooth protocol stack for Linux
 *
 *  Copyright (C) 2000-2001  Qualcomm Incorporated
 *  Copyright (C) 2002-2003  Maxim Krasnyansky <[e-mail]>
 *  Copyright (C) 2002-2004  Marcel Holtmann <[e-mail]>
 *
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation;
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 *  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
 *  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
 *  CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
 *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
 *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
 *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 *  ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
 *  COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
 *  SOFTWARE IS DISCLAIMED.
 *
 *
 *  $Id: bluetooth.h,v 1.17 2004/08/12 21:59:42 pkj Exp $
 */

#ifndef __BLUETOOTH_H
#define __BLUETOOTH_H

#ifdef __cplusplus
extern "C" {
#endif

#include <stdint.h>
#include <endian.h>
#include <byteswap.h>
#include <string.h>

#ifndef AF_BLUETOOTH
#define AF_BLUETOOTH	31
#define PF_BLUETOOTH	AF_BLUETOOTH
#endif

#define BTPROTO_L2CAP	0
#define BTPROTO_HCI	1
#define BTPROTO_SCO	2
#define BTPROTO_RFCOMM	3
#define BTPROTO_BNEP	4
#define BTPROTO_CMTP	5
#define BTPROTO_HIDP	6
#define BTPROTO_AVDTP	7

#define SOL_HCI		0
#define SOL_L2CAP	6
#define SOL_SCO		17
#define SOL_RFCOMM	18

/* Connection and socket states */
enum {
	BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
	BT_OPEN,
	BT_BOUND,
	BT_LISTEN,
	BT_CONNECT,
	BT_CONNECT2,
	BT_CONFIG,
	BT_DISCONN,
	BT_CLOSED
};

/* Byte order conversions */
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define htobs(d)  (d)
#define htobl(d)  (d)
#define btohs(d)  (d)
#define btohl(d)  (d)
#elif __BYTE_ORDER == __BIG_ENDIAN
#define htobs(d)  bswap_16(d)
#define htobl(d)  bswap_32(d)
#define btohs(d)  bswap_16(d)
#define btohl(d)  bswap_32(d)
#else
#error "Unknown byte order"
#endif

/* Bluetooth unaligned access */
#if defined(__i386__) || defined(__x86_64__) || defined(__powerpc__) || defined(__s390__) || defined(__cris__)
#define bt_get_unaligned(ptr) (*(ptr))
#define bt_put_unaligned(val, ptr) ((void)( *(ptr) = (val) ))
#else
#define bt_get_unaligned(ptr) \
	({ __typeof__(*(ptr)) __tmp; memmove(&__tmp, (ptr), sizeof(*(ptr))); __tmp; })
#define bt_put_unaligned(val, ptr) \
	({ __typeof__(*(ptr)) __tmp = (val); \
	memmove((ptr), &__tmp, sizeof(*(ptr))); \
	(void)0; })
#endif

/* BD Address */
typedef struct {
	uint8_t b[6];
} __attribute__((packed)) bdaddr_t;

#define BDADDR_ANY   (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
#define BDADDR_ALL   (&(bdaddr_t) {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}})
#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})

/* Copy, swap, convert BD Address */
static inline int bacmp(const bdaddr_t *ba1, const bdaddr_t *ba2)
{
	return memcmp(ba1, ba2, sizeof(bdaddr_t));
}
static inline void bacpy(bdaddr_t *dst, const bdaddr_t *src)
{
	memcpy(dst, src, sizeof(bdaddr_t));
}

void baswap(bdaddr_t *dst, const bdaddr_t *src);
bdaddr_t *strtoba(const char *str);
char *batostr(const bdaddr_t *ba);
int ba2str(const bdaddr_t *ba, char *str);
int str2ba(const char *str, bdaddr_t *ba);

int bt_error(uint16_t code);
char *bt_compidtostr(int id);

#ifdef __cplusplus
}
#endif

#endif /* __BLUETOOTH_H */