[deliverable/linux.git] / include / net / bluetooth / bluetooth.h

/* 
   BlueZ - Bluetooth protocol stack for Linux
   Copyright (C) 2000-2001 Qualcomm Incorporated

   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>

   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.
*/

#ifndef __BLUETOOTH_H
#define __BLUETOOTH_H

#include <asm/types.h>
#include <asm/byteorder.h>
#include <linux/list.h>
#include <linux/poll.h>
#include <net/sock.h>

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

/* Reserv for core and drivers use */
#define BT_SKB_RESERVE	8

#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

#define BT_SECURITY	4
struct bt_security {
	__u8 level;
	__u8 key_size;
};
#define BT_SECURITY_SDP		0
#define BT_SECURITY_LOW		1
#define BT_SECURITY_MEDIUM	2
#define BT_SECURITY_HIGH	3

#define BT_DEFER_SETUP	7

#define BT_FLUSHABLE	8

#define BT_FLUSHABLE_OFF	0
#define BT_FLUSHABLE_ON		1

#define BT_POWER	9
struct bt_power {
	__u8 force_active;
};
#define BT_POWER_FORCE_ACTIVE_OFF 0
#define BT_POWER_FORCE_ACTIVE_ON  1

#define BT_CHANNEL_POLICY	10

/* BR/EDR only (default policy)
 *   AMP controllers cannot be used.
 *   Channel move requests from the remote device are denied.
 *   If the L2CAP channel is currently using AMP, move the channel to BR/EDR.
 */
#define BT_CHANNEL_POLICY_BREDR_ONLY		0

/* BR/EDR Preferred
 *   Allow use of AMP controllers.
 *   If the L2CAP channel is currently on AMP, move it to BR/EDR.
 *   Channel move requests from the remote device are allowed.
 */
#define BT_CHANNEL_POLICY_BREDR_PREFERRED	1

/* AMP Preferred
 *   Allow use of AMP controllers
 *   If the L2CAP channel is currently on BR/EDR and AMP controller
 *     resources are available, initiate a channel move to AMP.
 *   Channel move requests from the remote device are allowed.
 *   If the L2CAP socket has not been connected yet, try to create
 *     and configure the channel directly on an AMP controller rather
 *     than BR/EDR.
 */
#define BT_CHANNEL_POLICY_AMP_PREFERRED		2

__printf(2, 3)
int bt_printk(const char *level, const char *fmt, ...);

#define BT_INFO(fmt, arg...)   bt_printk(KERN_INFO, pr_fmt(fmt), ##arg)
#define BT_ERR(fmt, arg...)    bt_printk(KERN_ERR, pr_fmt(fmt), ##arg)
#define BT_DBG(fmt, arg...)    pr_debug(fmt "\n", ##arg)

/* 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
};

/* BD Address */
typedef struct {
	__u8 b[6];
} __packed bdaddr_t;

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

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

void baswap(bdaddr_t *dst, bdaddr_t *src);
char *batostr(bdaddr_t *ba);
bdaddr_t *strtoba(char *str);

/* Common socket structures and functions */

#define bt_sk(__sk) ((struct bt_sock *) __sk)

struct bt_sock {
	struct sock sk;
	bdaddr_t    src;
	bdaddr_t    dst;
	struct list_head accept_q;
	struct sock *parent;
	u32 defer_setup;
};

struct bt_sock_list {
	struct hlist_head head;
	rwlock_t          lock;
};

int  bt_sock_register(int proto, const struct net_proto_family *ops);
int  bt_sock_unregister(int proto);
void bt_sock_link(struct bt_sock_list *l, struct sock *s);
void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
int  bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
				struct msghdr *msg, size_t len, int flags);
int  bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
			struct msghdr *msg, size_t len, int flags);
uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait);
int  bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int  bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);

void bt_accept_enqueue(struct sock *parent, struct sock *sk);
void bt_accept_unlink(struct sock *sk);
struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);

/* Skb helpers */
struct bt_skb_cb {
	__u8 pkt_type;
	__u8 incoming;
	__u16 expect;
	__u16 tx_seq;
	__u8 retries;
	__u8 sar;
	unsigned short channel;
	__u8 force_active;
};
#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))

static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
{
	struct sk_buff *skb;

	if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {
		skb_reserve(skb, BT_SKB_RESERVE);
		bt_cb(skb)->incoming  = 0;
	}
	return skb;
}

static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk,
					unsigned long len, int nb, int *err)
{
	struct sk_buff *skb;

	release_sock(sk);
	if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) {
		skb_reserve(skb, BT_SKB_RESERVE);
		bt_cb(skb)->incoming  = 0;
	}
	lock_sock(sk);

	if (!skb && *err)
		return NULL;

	*err = sock_error(sk);
	if (*err)
		goto out;

	if (sk->sk_shutdown) {
		*err = -ECONNRESET;
		goto out;
	}

	return skb;

out:
	kfree_skb(skb);
	return NULL;
}

int bt_to_errno(__u16 code);

extern int hci_sock_init(void);
extern void hci_sock_cleanup(void);

extern int bt_sysfs_init(void);
extern void bt_sysfs_cleanup(void);

extern struct dentry *bt_debugfs;

#ifdef CONFIG_BT_L2CAP
int l2cap_init(void);
void l2cap_exit(void);
#else
static inline int l2cap_init(void)
{
	return 0;
}

static inline void l2cap_exit(void)
{
}
#endif

#ifdef CONFIG_BT_SCO
int sco_init(void);
void sco_exit(void);
#else
static inline int sco_init(void)
{
	return 0;
}

static inline void sco_exit(void)
{
}
#endif

#endif /* __BLUETOOTH_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	BlueZ - Bluetooth protocol stack for Linux
	3	Copyright (C) 2000-2001 Qualcomm Incorporated
	4
	5	Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License version 2 as
	9	published by the Free Software Foundation;
	10
	11	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	12	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	13	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
	14	IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
	15	CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
	16	WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	17	ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	18	OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	19
	20	ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
	21	COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
	22	SOFTWARE IS DISCLAIMED.
	23	*/
	24
	25	#ifndef __BLUETOOTH_H
	26	#define __BLUETOOTH_H
	27
	28	#include <asm/types.h>
	29	#include <asm/byteorder.h>
	30	#include <linux/list.h>
	31	#include <linux/poll.h>
	32	#include <net/sock.h>
	33
	34	#ifndef AF_BLUETOOTH
	35	#define AF_BLUETOOTH 31
	36	#define PF_BLUETOOTH AF_BLUETOOTH
	37	#endif
	38
	39	/* Reserv for core and drivers use */
	40	#define BT_SKB_RESERVE 8
	41
	42	#define BTPROTO_L2CAP 0
	43	#define BTPROTO_HCI 1
	44	#define BTPROTO_SCO 2
	45	#define BTPROTO_RFCOMM 3
	46	#define BTPROTO_BNEP 4
	47	#define BTPROTO_CMTP 5
	48	#define BTPROTO_HIDP 6
	49	#define BTPROTO_AVDTP 7
	50
	51	#define SOL_HCI 0
	52	#define SOL_L2CAP 6
	53	#define SOL_SCO 17
	54	#define SOL_RFCOMM 18
	55
8c1b2355 MH	56	#define BT_SECURITY 4
	57	struct bt_security {
	58	__u8 level;
8f360119	59	__u8 key_size;
8c1b2355 MH	60	};
	61	#define BT_SECURITY_SDP 0
	62	#define BT_SECURITY_LOW 1
	63	#define BT_SECURITY_MEDIUM 2
	64	#define BT_SECURITY_HIGH 3
	65
c4f912e1 MH	66	#define BT_DEFER_SETUP 7
c4f912e1 MH	67
e702112f AE	68	#define BT_FLUSHABLE 8
	69
	70	#define BT_FLUSHABLE_OFF 0
	71	#define BT_FLUSHABLE_ON 1
	72
14b12d0b JG	73	#define BT_POWER 9
	74	struct bt_power {
	75	__u8 force_active;
	76	};
	77	#define BT_POWER_FORCE_ACTIVE_OFF 0
	78	#define BT_POWER_FORCE_ACTIVE_ON 1
	79
c14968b0 MM	80	#define BT_CHANNEL_POLICY 10
	81
	82	/* BR/EDR only (default policy)
	83	* AMP controllers cannot be used.
	84	* Channel move requests from the remote device are denied.
	85	* If the L2CAP channel is currently using AMP, move the channel to BR/EDR.
	86	*/
	87	#define BT_CHANNEL_POLICY_BREDR_ONLY 0
	88
	89	/* BR/EDR Preferred
	90	* Allow use of AMP controllers.
	91	* If the L2CAP channel is currently on AMP, move it to BR/EDR.
	92	* Channel move requests from the remote device are allowed.
	93	*/
	94	#define BT_CHANNEL_POLICY_BREDR_PREFERRED 1
	95
	96	/* AMP Preferred
	97	* Allow use of AMP controllers
	98	* If the L2CAP channel is currently on BR/EDR and AMP controller
	99	* resources are available, initiate a channel move to AMP.
	100	* Channel move requests from the remote device are allowed.
	101	* If the L2CAP socket has not been connected yet, try to create
	102	* and configure the channel directly on an AMP controller rather
	103	* than BR/EDR.
	104	*/
	105	#define BT_CHANNEL_POLICY_AMP_PREFERRED 2
	106
b9075fa9	107	__printf(2, 3)
e1447d8d JP	108	int bt_printk(const char level, const char fmt, ...);
	109
	110	#define BT_INFO(fmt, arg...) bt_printk(KERN_INFO, pr_fmt(fmt), ##arg)
	111	#define BT_ERR(fmt, arg...) bt_printk(KERN_ERR, pr_fmt(fmt), ##arg)
	112	#define BT_DBG(fmt, arg...) pr_debug(fmt "\n", ##arg)
1da177e4	113
1da177e4 LT	114	/* Connection and socket states */
	115	enum {
	116	BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
	117	BT_OPEN,
	118	BT_BOUND,
	119	BT_LISTEN,
	120	BT_CONNECT,
	121	BT_CONNECT2,
	122	BT_CONFIG,
	123	BT_DISCONN,
	124	BT_CLOSED
	125	};
	126
1da177e4 LT	127	/* BD Address */
	128	typedef struct {
	129	__u8 b[6];
66c853cc	130	} __packed bdaddr_t;
1da177e4 LT	131
	132	#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
	133	#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
	134
	135	/* Copy, swap, convert BD Address */
	136	static inline int bacmp(bdaddr_t ba1, bdaddr_t ba2)
	137	{
	138	return memcmp(ba1, ba2, sizeof(bdaddr_t));
	139	}
	140	static inline void bacpy(bdaddr_t dst, bdaddr_t src)
	141	{
	142	memcpy(dst, src, sizeof(bdaddr_t));
	143	}
	144
	145	void baswap(bdaddr_t dst, bdaddr_t src);
	146	char batostr(bdaddr_t ba);
	147	bdaddr_t strtoba(char str);
	148
	149	/* Common socket structures and functions */
	150
	151	#define bt_sk(__sk) ((struct bt_sock *) __sk)
	152
	153	struct bt_sock {
	154	struct sock sk;
	155	bdaddr_t src;
	156	bdaddr_t dst;
	157	struct list_head accept_q;
	158	struct sock *parent;
c4f912e1	159	u32 defer_setup;
1da177e4 LT	160	};
	161
	162	struct bt_sock_list {
	163	struct hlist_head head;
	164	rwlock_t lock;
	165	};
	166
ec1b4cf7	167	int bt_sock_register(int proto, const struct net_proto_family *ops);
1da177e4 LT	168	int bt_sock_unregister(int proto);
	169	void bt_sock_link(struct bt_sock_list l, struct sock s);
	170	void bt_sock_unlink(struct bt_sock_list l, struct sock s);
5a9d0a3f WR	171	int bt_sock_recvmsg(struct kiocb iocb, struct socket sock,
5a9d0a3f WR	172	struct msghdr *msg, size_t len, int flags);
796c86ee MM	173	int bt_sock_stream_recvmsg(struct kiocb iocb, struct socket sock,
796c86ee MM	174	struct msghdr *msg, size_t len, int flags);
1da177e4	175	uint bt_sock_poll(struct file * file, struct socket sock, poll_table wait);
3241ad82	176	int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
1da177e4 LT	177	int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
	178
	179	void bt_accept_enqueue(struct sock parent, struct sock sk);
	180	void bt_accept_unlink(struct sock *sk);
	181	struct sock bt_accept_dequeue(struct sock parent, struct socket *newsock);
	182
	183	/* Skb helpers */
	184	struct bt_skb_cb {
0d48d939 MH	185	__u8 pkt_type;
0d48d939 MH	186	__u8 incoming;
33e882a5	187	__u16 expect;
836be934	188	__u16 tx_seq;
e90bac06	189	__u8 retries;
8f17154f	190	__u8 sar;
a40c406c	191	unsigned short channel;
14b12d0b	192	__u8 force_active;
1da177e4	193	};
1c2acffb	194	#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
1da177e4	195
dd0fc66f	196	static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
1da177e4 LT	197	{
	198	struct sk_buff *skb;
	199
	200	if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {
	201	skb_reserve(skb, BT_SKB_RESERVE);
	202	bt_cb(skb)->incoming = 0;
	203	}
	204	return skb;
	205	}
	206
5a9d0a3f WR	207	static inline struct sk_buff bt_skb_send_alloc(struct sock sk,
5a9d0a3f WR	208	unsigned long len, int nb, int *err)
1da177e4 LT	209	{
	210	struct sk_buff *skb;
	211
e454c844	212	release_sock(sk);
1da177e4 LT	213	if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) {
	214	skb_reserve(skb, BT_SKB_RESERVE);
	215	bt_cb(skb)->incoming = 0;
	216	}
e454c844 GP	217	lock_sock(sk);
	218
	219	if (!skb && *err)
	220	return NULL;
	221
	222	*err = sock_error(sk);
	223	if (*err)
	224	goto out;
	225
	226	if (sk->sk_shutdown) {
	227	*err = -ECONNRESET;
	228	goto out;
	229	}
1da177e4 LT	230
1da177e4 LT	231	return skb;
e454c844 GP	232
	233	out:
	234	kfree_skb(skb);
	235	return NULL;
1da177e4 LT	236	}
1da177e4 LT	237
e175072f	238	int bt_to_errno(__u16 code);
1da177e4	239
6516455d	240	extern int hci_sock_init(void);
04005dd9	241	extern void hci_sock_cleanup(void);
6516455d MH	242
	243	extern int bt_sysfs_init(void);
	244	extern void bt_sysfs_cleanup(void);
	245
aef7d97c	246	extern struct dentry *bt_debugfs;
be9d1227	247
64274518 GP	248	#ifdef CONFIG_BT_L2CAP
	249	int l2cap_init(void);
	250	void l2cap_exit(void);
	251	#else
	252	static inline int l2cap_init(void)
	253	{
	254	return 0;
	255	}
	256
	257	static inline void l2cap_exit(void)
	258	{
	259	}
	260	#endif
	261
	262	#ifdef CONFIG_BT_SCO
	263	int sco_init(void);
	264	void sco_exit(void);
	265	#else
	266	static inline int sco_init(void)
	267	{
	268	return 0;
	269	}
	270
	271	static inline void sco_exit(void)
	272	{
	273	}
	274	#endif
	275
1da177e4	276	#endif /* __BLUETOOTH_H */