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

/*
   RFCOMM implementation for Linux Bluetooth stack (BlueZ)
   Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
   Copyright (C) 2002 Marcel Holtmann <marcel@holtmann.org>

   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 __RFCOMM_H
#define __RFCOMM_H

#define RFCOMM_PSM 3

#define RFCOMM_CONN_TIMEOUT (HZ * 30)
#define RFCOMM_DISC_TIMEOUT (HZ * 20)
#define RFCOMM_AUTH_TIMEOUT (HZ * 25)
#define RFCOMM_IDLE_TIMEOUT (HZ * 2)

#define RFCOMM_DEFAULT_MTU	127
#define RFCOMM_DEFAULT_CREDITS	7

#define RFCOMM_MAX_L2CAP_MTU	1013
#define RFCOMM_MAX_CREDITS	40

#define RFCOMM_SKB_HEAD_RESERVE	8
#define RFCOMM_SKB_TAIL_RESERVE	2
#define RFCOMM_SKB_RESERVE  (RFCOMM_SKB_HEAD_RESERVE + RFCOMM_SKB_TAIL_RESERVE)

#define RFCOMM_SABM	0x2f
#define RFCOMM_DISC	0x43
#define RFCOMM_UA	0x63
#define RFCOMM_DM	0x0f
#define RFCOMM_UIH	0xef

#define RFCOMM_TEST	0x08
#define RFCOMM_FCON	0x28
#define RFCOMM_FCOFF	0x18
#define RFCOMM_MSC	0x38
#define RFCOMM_RPN	0x24
#define RFCOMM_RLS	0x14
#define RFCOMM_PN	0x20
#define RFCOMM_NSC	0x04

#define RFCOMM_V24_FC	0x02
#define RFCOMM_V24_RTC	0x04
#define RFCOMM_V24_RTR	0x08
#define RFCOMM_V24_IC	0x40
#define RFCOMM_V24_DV	0x80

#define RFCOMM_RPN_BR_2400	0x0
#define RFCOMM_RPN_BR_4800	0x1
#define RFCOMM_RPN_BR_7200	0x2
#define RFCOMM_RPN_BR_9600	0x3
#define RFCOMM_RPN_BR_19200	0x4
#define RFCOMM_RPN_BR_38400	0x5
#define RFCOMM_RPN_BR_57600	0x6
#define RFCOMM_RPN_BR_115200	0x7
#define RFCOMM_RPN_BR_230400	0x8

#define RFCOMM_RPN_DATA_5	0x0
#define RFCOMM_RPN_DATA_6	0x1
#define RFCOMM_RPN_DATA_7	0x2
#define RFCOMM_RPN_DATA_8	0x3

#define RFCOMM_RPN_STOP_1	0
#define RFCOMM_RPN_STOP_15	1

#define RFCOMM_RPN_PARITY_NONE	0x0
#define RFCOMM_RPN_PARITY_ODD	0x1
#define RFCOMM_RPN_PARITY_EVEN	0x3
#define RFCOMM_RPN_PARITY_MARK	0x5
#define RFCOMM_RPN_PARITY_SPACE	0x7

#define RFCOMM_RPN_FLOW_NONE	0x00

#define RFCOMM_RPN_XON_CHAR	0x11
#define RFCOMM_RPN_XOFF_CHAR	0x13

#define RFCOMM_RPN_PM_BITRATE		0x0001
#define RFCOMM_RPN_PM_DATA		0x0002
#define RFCOMM_RPN_PM_STOP		0x0004
#define RFCOMM_RPN_PM_PARITY		0x0008
#define RFCOMM_RPN_PM_PARITY_TYPE	0x0010
#define RFCOMM_RPN_PM_XON		0x0020
#define RFCOMM_RPN_PM_XOFF		0x0040
#define RFCOMM_RPN_PM_FLOW		0x3F00

#define RFCOMM_RPN_PM_ALL		0x3F7F

struct rfcomm_hdr {
	u8 addr;
	u8 ctrl;
	u8 len;    /* Actual size can be 2 bytes */
} __packed;

struct rfcomm_cmd {
	u8 addr;
	u8 ctrl;
	u8 len;
	u8 fcs;
} __packed;

struct rfcomm_mcc {
	u8 type;
	u8 len;
} __packed;

struct rfcomm_pn {
	u8  dlci;
	u8  flow_ctrl;
	u8  priority;
	u8  ack_timer;
	__le16 mtu;
	u8  max_retrans;
	u8  credits;
} __packed;

struct rfcomm_rpn {
	u8  dlci;
	u8  bit_rate;
	u8  line_settings;
	u8  flow_ctrl;
	u8  xon_char;
	u8  xoff_char;
	__le16 param_mask;
} __packed;

struct rfcomm_rls {
	u8  dlci;
	u8  status;
} __packed;

struct rfcomm_msc {
	u8  dlci;
	u8  v24_sig;
} __packed;

/* ---- Core structures, flags etc ---- */

struct rfcomm_session {
	struct list_head list;
	struct socket   *sock;
	struct timer_list timer;
	unsigned long    state;
	unsigned long    flags;
	int              initiator;

	/* Default DLC parameters */
	int    cfc;
	uint   mtu;

	struct list_head dlcs;
};

struct rfcomm_dlc {
	struct list_head      list;
	struct rfcomm_session *session;
	struct sk_buff_head   tx_queue;
	struct timer_list     timer;

	spinlock_t    lock;
	unsigned long state;
	unsigned long flags;
	atomic_t      refcnt;
	u8            dlci;
	u8            addr;
	u8            priority;
	u8            v24_sig;
	u8            remote_v24_sig;
	u8            mscex;
	u8            out;
	u8            sec_level;
	u8            role_switch;
	u32           defer_setup;

	uint          mtu;
	uint          cfc;
	uint          rx_credits;
	uint          tx_credits;

	void          *owner;

	void (*data_ready)(struct rfcomm_dlc *d, struct sk_buff *skb);
	void (*state_change)(struct rfcomm_dlc *d, int err);
	void (*modem_status)(struct rfcomm_dlc *d, u8 v24_sig);
};

/* DLC and session flags */
#define RFCOMM_RX_THROTTLED 0
#define RFCOMM_TX_THROTTLED 1
#define RFCOMM_TIMED_OUT    2
#define RFCOMM_MSC_PENDING  3
#define RFCOMM_SEC_PENDING  4
#define RFCOMM_AUTH_PENDING 5
#define RFCOMM_AUTH_ACCEPT  6
#define RFCOMM_AUTH_REJECT  7
#define RFCOMM_DEFER_SETUP  8
#define RFCOMM_ENC_DROP     9

/* Scheduling flags and events */
#define RFCOMM_SCHED_WAKEUP 31

/* MSC exchange flags */
#define RFCOMM_MSCEX_TX     1
#define RFCOMM_MSCEX_RX     2
#define RFCOMM_MSCEX_OK     (RFCOMM_MSCEX_TX + RFCOMM_MSCEX_RX)

/* CFC states */
#define RFCOMM_CFC_UNKNOWN  -1
#define RFCOMM_CFC_DISABLED 0
#define RFCOMM_CFC_ENABLED  RFCOMM_MAX_CREDITS

/* ---- RFCOMM SEND RPN ---- */
int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci,
			u8 bit_rate, u8 data_bits, u8 stop_bits,
			u8 parity, u8 flow_ctrl_settings,
			u8 xon_char, u8 xoff_char, u16 param_mask);

/* ---- RFCOMM DLCs (channels) ---- */
struct rfcomm_dlc *rfcomm_dlc_alloc(gfp_t prio);
void rfcomm_dlc_free(struct rfcomm_dlc *d);
int  rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst,
								u8 channel);
int  rfcomm_dlc_close(struct rfcomm_dlc *d, int reason);
int  rfcomm_dlc_send(struct rfcomm_dlc *d, struct sk_buff *skb);
void rfcomm_dlc_send_noerror(struct rfcomm_dlc *d, struct sk_buff *skb);
int  rfcomm_dlc_set_modem_status(struct rfcomm_dlc *d, u8 v24_sig);
int  rfcomm_dlc_get_modem_status(struct rfcomm_dlc *d, u8 *v24_sig);
void rfcomm_dlc_accept(struct rfcomm_dlc *d);
struct rfcomm_dlc *rfcomm_dlc_exists(bdaddr_t *src, bdaddr_t *dst, u8 channel);

#define rfcomm_dlc_lock(d)     spin_lock(&d->lock)
#define rfcomm_dlc_unlock(d)   spin_unlock(&d->lock)

static inline void rfcomm_dlc_hold(struct rfcomm_dlc *d)
{
	atomic_inc(&d->refcnt);
}

static inline void rfcomm_dlc_put(struct rfcomm_dlc *d)
{
	if (atomic_dec_and_test(&d->refcnt))
		rfcomm_dlc_free(d);
}

void __rfcomm_dlc_throttle(struct rfcomm_dlc *d);
void __rfcomm_dlc_unthrottle(struct rfcomm_dlc *d);

static inline void rfcomm_dlc_throttle(struct rfcomm_dlc *d)
{
	if (!test_and_set_bit(RFCOMM_RX_THROTTLED, &d->flags))
		__rfcomm_dlc_throttle(d);
}

static inline void rfcomm_dlc_unthrottle(struct rfcomm_dlc *d)
{
	if (test_and_clear_bit(RFCOMM_RX_THROTTLED, &d->flags))
		__rfcomm_dlc_unthrottle(d);
}

/* ---- RFCOMM sessions ---- */
void   rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src,
								bdaddr_t *dst);

/* ---- RFCOMM sockets ---- */
struct sockaddr_rc {
	sa_family_t	rc_family;
	bdaddr_t	rc_bdaddr;
	u8		rc_channel;
};

#define RFCOMM_CONNINFO	0x02
struct rfcomm_conninfo {
	__u16 hci_handle;
	__u8  dev_class[3];
};

#define RFCOMM_LM	0x03
#define RFCOMM_LM_MASTER	0x0001
#define RFCOMM_LM_AUTH		0x0002
#define RFCOMM_LM_ENCRYPT	0x0004
#define RFCOMM_LM_TRUSTED	0x0008
#define RFCOMM_LM_RELIABLE	0x0010
#define RFCOMM_LM_SECURE	0x0020
#define RFCOMM_LM_FIPS		0x0040

#define rfcomm_pi(sk) ((struct rfcomm_pinfo *) sk)

struct rfcomm_pinfo {
	struct bt_sock bt;
	bdaddr_t src;
	bdaddr_t dst;
	struct rfcomm_dlc   *dlc;
	u8     channel;
	u8     sec_level;
	u8     role_switch;
};

int  rfcomm_init_sockets(void);
void rfcomm_cleanup_sockets(void);

int  rfcomm_connect_ind(struct rfcomm_session *s, u8 channel,
							struct rfcomm_dlc **d);

/* ---- RFCOMM TTY ---- */
#define RFCOMM_MAX_DEV  256

#define RFCOMMCREATEDEV		_IOW('R', 200, int)
#define RFCOMMRELEASEDEV	_IOW('R', 201, int)
#define RFCOMMGETDEVLIST	_IOR('R', 210, int)
#define RFCOMMGETDEVINFO	_IOR('R', 211, int)
#define RFCOMMSTEALDLC		_IOW('R', 220, int)

/* rfcomm_dev.flags bit definitions */
#define RFCOMM_REUSE_DLC      0
#define RFCOMM_RELEASE_ONHUP  1
#define RFCOMM_HANGUP_NOW     2
#define RFCOMM_TTY_ATTACHED   3
#define RFCOMM_DEFUNCT_BIT4   4	  /* don't reuse this bit - userspace visible */

/* rfcomm_dev.status bit definitions */
#define RFCOMM_DEV_RELEASED   0
#define RFCOMM_TTY_OWNED      1

struct rfcomm_dev_req {
	s16      dev_id;
	u32      flags;
	bdaddr_t src;
	bdaddr_t dst;
	u8       channel;
};

struct rfcomm_dev_info {
	s16      id;
	u32      flags;
	u16      state;
	bdaddr_t src;
	bdaddr_t dst;
	u8       channel;
};

struct rfcomm_dev_list_req {
	u16      dev_num;
	struct   rfcomm_dev_info dev_info[0];
};

int  rfcomm_dev_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);

#ifdef CONFIG_BT_RFCOMM_TTY
int  rfcomm_init_ttys(void);
void rfcomm_cleanup_ttys(void);
#else
static inline int rfcomm_init_ttys(void)
{
	return 0;
}
static inline void rfcomm_cleanup_ttys(void)
{
}
#endif
#endif /* __RFCOMM_H */
Commit	Line	Data
be21871f AE	1	/*
be21871f AE	2	RFCOMM implementation for Linux Bluetooth stack (BlueZ)
1da177e4 LT	3	Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
	4	Copyright (C) 2002 Marcel Holtmann <marcel@holtmann.org>
	5
	6	This program is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License version 2 as
	8	published by the Free Software Foundation;
	9
	10	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	11	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	12	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
	13	IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
be21871f AE	14	CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
	15	WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	16	ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
1da177e4 LT	17	OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1da177e4 LT	18
be21871f AE	19	ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
be21871f AE	20	COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
1da177e4 LT	21	SOFTWARE IS DISCLAIMED.
	22	*/
	23
	24	#ifndef __RFCOMM_H
	25	#define __RFCOMM_H
	26
	27	#define RFCOMM_PSM 3
	28
	29	#define RFCOMM_CONN_TIMEOUT (HZ * 30)
	30	#define RFCOMM_DISC_TIMEOUT (HZ * 20)
	31	#define RFCOMM_AUTH_TIMEOUT (HZ * 25)
9e726b17	32	#define RFCOMM_IDLE_TIMEOUT (HZ * 2)
1da177e4 LT	33
	34	#define RFCOMM_DEFAULT_MTU 127
	35	#define RFCOMM_DEFAULT_CREDITS 7
	36
56f3a40a	37	#define RFCOMM_MAX_L2CAP_MTU 1013
1da177e4 LT	38	#define RFCOMM_MAX_CREDITS 40
	39
	40	#define RFCOMM_SKB_HEAD_RESERVE 8
	41	#define RFCOMM_SKB_TAIL_RESERVE 2
	42	#define RFCOMM_SKB_RESERVE (RFCOMM_SKB_HEAD_RESERVE + RFCOMM_SKB_TAIL_RESERVE)
	43
	44	#define RFCOMM_SABM 0x2f
	45	#define RFCOMM_DISC 0x43
	46	#define RFCOMM_UA 0x63
	47	#define RFCOMM_DM 0x0f
	48	#define RFCOMM_UIH 0xef
	49
	50	#define RFCOMM_TEST 0x08
	51	#define RFCOMM_FCON 0x28
	52	#define RFCOMM_FCOFF 0x18
	53	#define RFCOMM_MSC 0x38
	54	#define RFCOMM_RPN 0x24
	55	#define RFCOMM_RLS 0x14
	56	#define RFCOMM_PN 0x20
	57	#define RFCOMM_NSC 0x04
	58
	59	#define RFCOMM_V24_FC 0x02
	60	#define RFCOMM_V24_RTC 0x04
	61	#define RFCOMM_V24_RTR 0x08
	62	#define RFCOMM_V24_IC 0x40
	63	#define RFCOMM_V24_DV 0x80
	64
	65	#define RFCOMM_RPN_BR_2400 0x0
	66	#define RFCOMM_RPN_BR_4800 0x1
	67	#define RFCOMM_RPN_BR_7200 0x2
	68	#define RFCOMM_RPN_BR_9600 0x3
	69	#define RFCOMM_RPN_BR_19200 0x4
	70	#define RFCOMM_RPN_BR_38400 0x5
	71	#define RFCOMM_RPN_BR_57600 0x6
	72	#define RFCOMM_RPN_BR_115200 0x7
	73	#define RFCOMM_RPN_BR_230400 0x8
	74
	75	#define RFCOMM_RPN_DATA_5 0x0
	76	#define RFCOMM_RPN_DATA_6 0x1
	77	#define RFCOMM_RPN_DATA_7 0x2
	78	#define RFCOMM_RPN_DATA_8 0x3
	79
	80	#define RFCOMM_RPN_STOP_1 0
	81	#define RFCOMM_RPN_STOP_15 1
	82
	83	#define RFCOMM_RPN_PARITY_NONE 0x0
3a5e903c S	84	#define RFCOMM_RPN_PARITY_ODD 0x1
	85	#define RFCOMM_RPN_PARITY_EVEN 0x3
	86	#define RFCOMM_RPN_PARITY_MARK 0x5
1da177e4 LT	87	#define RFCOMM_RPN_PARITY_SPACE 0x7
	88
	89	#define RFCOMM_RPN_FLOW_NONE 0x00
	90
	91	#define RFCOMM_RPN_XON_CHAR 0x11
	92	#define RFCOMM_RPN_XOFF_CHAR 0x13
	93
	94	#define RFCOMM_RPN_PM_BITRATE 0x0001
	95	#define RFCOMM_RPN_PM_DATA 0x0002
	96	#define RFCOMM_RPN_PM_STOP 0x0004
	97	#define RFCOMM_RPN_PM_PARITY 0x0008
	98	#define RFCOMM_RPN_PM_PARITY_TYPE 0x0010
	99	#define RFCOMM_RPN_PM_XON 0x0020
	100	#define RFCOMM_RPN_PM_XOFF 0x0040
	101	#define RFCOMM_RPN_PM_FLOW 0x3F00
	102
	103	#define RFCOMM_RPN_PM_ALL 0x3F7F
	104
	105	struct rfcomm_hdr {
	106	u8 addr;
	107	u8 ctrl;
285b4e90	108	u8 len; /* Actual size can be 2 bytes */
66c853cc	109	} __packed;
1da177e4 LT	110
	111	struct rfcomm_cmd {
	112	u8 addr;
	113	u8 ctrl;
	114	u8 len;
	115	u8 fcs;
66c853cc	116	} __packed;
1da177e4 LT	117
	118	struct rfcomm_mcc {
	119	u8 type;
	120	u8 len;
66c853cc	121	} __packed;
1da177e4 LT	122
	123	struct rfcomm_pn {
	124	u8 dlci;
	125	u8 flow_ctrl;
	126	u8 priority;
	127	u8 ack_timer;
6ba9c755	128	__le16 mtu;
1da177e4 LT	129	u8 max_retrans;
1da177e4 LT	130	u8 credits;
66c853cc	131	} __packed;
1da177e4 LT	132
	133	struct rfcomm_rpn {
	134	u8 dlci;
	135	u8 bit_rate;
	136	u8 line_settings;
	137	u8 flow_ctrl;
	138	u8 xon_char;
	139	u8 xoff_char;
6ba9c755	140	__le16 param_mask;
66c853cc	141	} __packed;
1da177e4 LT	142
	143	struct rfcomm_rls {
	144	u8 dlci;
	145	u8 status;
66c853cc	146	} __packed;
1da177e4 LT	147
	148	struct rfcomm_msc {
	149	u8 dlci;
	150	u8 v24_sig;
66c853cc	151	} __packed;
1da177e4 LT	152
	153	/* ---- Core structures, flags etc ---- */
	154
	155	struct rfcomm_session {
	156	struct list_head list;
	157	struct socket *sock;
9e726b17	158	struct timer_list timer;
1da177e4 LT	159	unsigned long state;
1da177e4 LT	160	unsigned long flags;
1da177e4 LT	161	int initiator;
	162
	163	/* Default DLC parameters */
	164	int cfc;
	165	uint mtu;
	166
	167	struct list_head dlcs;
	168	};
	169
	170	struct rfcomm_dlc {
	171	struct list_head list;
	172	struct rfcomm_session *session;
	173	struct sk_buff_head tx_queue;
	174	struct timer_list timer;
	175
	176	spinlock_t lock;
	177	unsigned long state;
	178	unsigned long flags;
	179	atomic_t refcnt;
	180	u8 dlci;
	181	u8 addr;
	182	u8 priority;
	183	u8 v24_sig;
8b6b3da7	184	u8 remote_v24_sig;
1da177e4	185	u8 mscex;
77db1980	186	u8 out;
9f2c8a03 MH	187	u8 sec_level;
9f2c8a03 MH	188	u8 role_switch;
bb23c0ab	189	u32 defer_setup;
1da177e4 LT	190
	191	uint mtu;
	192	uint cfc;
	193	uint rx_credits;
	194	uint tx_credits;
	195
	196	void *owner;
	197
	198	void (data_ready)(struct rfcomm_dlc d, struct sk_buff *skb);
	199	void (state_change)(struct rfcomm_dlc d, int err);
	200	void (modem_status)(struct rfcomm_dlc d, u8 v24_sig);
	201	};
	202
	203	/* DLC and session flags */
	204	#define RFCOMM_RX_THROTTLED 0
	205	#define RFCOMM_TX_THROTTLED 1
	206	#define RFCOMM_TIMED_OUT 2
bb23c0ab	207	#define RFCOMM_MSC_PENDING 3
8c84b830 MH	208	#define RFCOMM_SEC_PENDING 4
	209	#define RFCOMM_AUTH_PENDING 5
	210	#define RFCOMM_AUTH_ACCEPT 6
	211	#define RFCOMM_AUTH_REJECT 7
	212	#define RFCOMM_DEFER_SETUP 8
88149db4	213	#define RFCOMM_ENC_DROP 9
1da177e4 LT	214
1da177e4 LT	215	/* Scheduling flags and events */
1da177e4 LT	216	#define RFCOMM_SCHED_WAKEUP 31
	217
	218	/* MSC exchange flags */
	219	#define RFCOMM_MSCEX_TX 1
	220	#define RFCOMM_MSCEX_RX 2
	221	#define RFCOMM_MSCEX_OK (RFCOMM_MSCEX_TX + RFCOMM_MSCEX_RX)
	222
	223	/* CFC states */
	224	#define RFCOMM_CFC_UNKNOWN -1
	225	#define RFCOMM_CFC_DISABLED 0
	226	#define RFCOMM_CFC_ENABLED RFCOMM_MAX_CREDITS
	227
3a5e903c S	228	/* ---- RFCOMM SEND RPN ---- */
	229	int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci,
	230	u8 bit_rate, u8 data_bits, u8 stop_bits,
285b4e90	231	u8 parity, u8 flow_ctrl_settings,
3a5e903c S	232	u8 xon_char, u8 xoff_char, u16 param_mask);
3a5e903c S	233
1da177e4	234	/* ---- RFCOMM DLCs (channels) ---- */
dd0fc66f	235	struct rfcomm_dlc *rfcomm_dlc_alloc(gfp_t prio);
1da177e4	236	void rfcomm_dlc_free(struct rfcomm_dlc *d);
5a9d0a3f WR	237	int rfcomm_dlc_open(struct rfcomm_dlc d, bdaddr_t src, bdaddr_t *dst,
5a9d0a3f WR	238	u8 channel);
1da177e4 LT	239	int rfcomm_dlc_close(struct rfcomm_dlc *d, int reason);
1da177e4 LT	240	int rfcomm_dlc_send(struct rfcomm_dlc d, struct sk_buff skb);
72e5108c	241	void rfcomm_dlc_send_noerror(struct rfcomm_dlc d, struct sk_buff skb);
1da177e4 LT	242	int rfcomm_dlc_set_modem_status(struct rfcomm_dlc *d, u8 v24_sig);
1da177e4 LT	243	int rfcomm_dlc_get_modem_status(struct rfcomm_dlc d, u8 v24_sig);
bb23c0ab	244	void rfcomm_dlc_accept(struct rfcomm_dlc *d);
c10a848c	245	struct rfcomm_dlc rfcomm_dlc_exists(bdaddr_t src, bdaddr_t *dst, u8 channel);
1da177e4 LT	246
	247	#define rfcomm_dlc_lock(d) spin_lock(&d->lock)
	248	#define rfcomm_dlc_unlock(d) spin_unlock(&d->lock)
	249
	250	static inline void rfcomm_dlc_hold(struct rfcomm_dlc *d)
	251	{
	252	atomic_inc(&d->refcnt);
	253	}
	254
	255	static inline void rfcomm_dlc_put(struct rfcomm_dlc *d)
	256	{
	257	if (atomic_dec_and_test(&d->refcnt))
	258	rfcomm_dlc_free(d);
	259	}
	260
e74e58f8 JP	261	void __rfcomm_dlc_throttle(struct rfcomm_dlc *d);
e74e58f8 JP	262	void __rfcomm_dlc_unthrottle(struct rfcomm_dlc *d);
1da177e4 LT	263
	264	static inline void rfcomm_dlc_throttle(struct rfcomm_dlc *d)
	265	{
	266	if (!test_and_set_bit(RFCOMM_RX_THROTTLED, &d->flags))
	267	__rfcomm_dlc_throttle(d);
	268	}
	269
	270	static inline void rfcomm_dlc_unthrottle(struct rfcomm_dlc *d)
	271	{
	272	if (test_and_clear_bit(RFCOMM_RX_THROTTLED, &d->flags))
	273	__rfcomm_dlc_unthrottle(d);
	274	}
	275
	276	/* ---- RFCOMM sessions ---- */
5a9d0a3f WR	277	void rfcomm_session_getaddr(struct rfcomm_session s, bdaddr_t src,
5a9d0a3f WR	278	bdaddr_t *dst);
1da177e4	279
1da177e4 LT	280	/* ---- RFCOMM sockets ---- */
	281	struct sockaddr_rc {
	282	sa_family_t rc_family;
	283	bdaddr_t rc_bdaddr;
	284	u8 rc_channel;
	285	};
	286
	287	#define RFCOMM_CONNINFO 0x02
	288	struct rfcomm_conninfo {
	289	__u16 hci_handle;
	290	__u8 dev_class[3];
	291	};
	292
	293	#define RFCOMM_LM 0x03
	294	#define RFCOMM_LM_MASTER 0x0001
	295	#define RFCOMM_LM_AUTH 0x0002
	296	#define RFCOMM_LM_ENCRYPT 0x0004
	297	#define RFCOMM_LM_TRUSTED 0x0008
	298	#define RFCOMM_LM_RELIABLE 0x0010
	299	#define RFCOMM_LM_SECURE 0x0020
2c068e0b	300	#define RFCOMM_LM_FIPS 0x0040
1da177e4 LT	301
	302	#define rfcomm_pi(sk) ((struct rfcomm_pinfo *) sk)
	303
	304	struct rfcomm_pinfo {
	305	struct bt_sock bt;
94a86df0 MH	306	bdaddr_t src;
94a86df0 MH	307	bdaddr_t dst;
1da177e4 LT	308	struct rfcomm_dlc *dlc;
1da177e4 LT	309	u8 channel;
9f2c8a03 MH	310	u8 sec_level;
9f2c8a03 MH	311	u8 role_switch;
1da177e4 LT	312	};
	313
	314	int rfcomm_init_sockets(void);
	315	void rfcomm_cleanup_sockets(void);
	316
5a9d0a3f WR	317	int rfcomm_connect_ind(struct rfcomm_session *s, u8 channel,
5a9d0a3f WR	318	struct rfcomm_dlc **d);
1da177e4 LT	319
	320	/* ---- RFCOMM TTY ---- */
	321	#define RFCOMM_MAX_DEV 256
	322
	323	#define RFCOMMCREATEDEV _IOW('R', 200, int)
	324	#define RFCOMMRELEASEDEV _IOW('R', 201, int)
	325	#define RFCOMMGETDEVLIST _IOR('R', 210, int)
	326	#define RFCOMMGETDEVINFO _IOR('R', 211, int)
	327	#define RFCOMMSTEALDLC _IOW('R', 220, int)
	328
1c64834e	329	/* rfcomm_dev.flags bit definitions */
1da177e4 LT	330	#define RFCOMM_REUSE_DLC 0
	331	#define RFCOMM_RELEASE_ONHUP 1
	332	#define RFCOMM_HANGUP_NOW 2
	333	#define RFCOMM_TTY_ATTACHED 3
1c64834e PH	334	#define RFCOMM_DEFUNCT_BIT4 4 /* don't reuse this bit - userspace visible */
	335
	336	/* rfcomm_dev.status bit definitions */
	337	#define RFCOMM_DEV_RELEASED 0
80ea7337	338	#define RFCOMM_TTY_OWNED 1
1da177e4 LT	339
	340	struct rfcomm_dev_req {
	341	s16 dev_id;
	342	u32 flags;
	343	bdaddr_t src;
	344	bdaddr_t dst;
	345	u8 channel;
1da177e4 LT	346	};
	347
	348	struct rfcomm_dev_info {
	349	s16 id;
	350	u32 flags;
	351	u16 state;
	352	bdaddr_t src;
	353	bdaddr_t dst;
	354	u8 channel;
	355	};
	356
	357	struct rfcomm_dev_list_req {
	358	u16 dev_num;
	359	struct rfcomm_dev_info dev_info[0];
	360	};
	361
	362	int rfcomm_dev_ioctl(struct sock sk, unsigned int cmd, void __user arg);
af0d3b10 DY	363
af0d3b10 DY	364	#ifdef CONFIG_BT_RFCOMM_TTY
1da177e4 LT	365	int rfcomm_init_ttys(void);
1da177e4 LT	366	void rfcomm_cleanup_ttys(void);
af0d3b10 DY	367	#else
	368	static inline int rfcomm_init_ttys(void)
	369	{
	370	return 0;
	371	}
	372	static inline void rfcomm_cleanup_ttys(void)
	373	{
	374	}
	375	#endif
1da177e4	376	#endif /* __RFCOMM_H */