xref: /openbmc/linux/include/net/bluetooth/rfcomm.h (revision ead5d1f4d877e92c051e1a1ade623d0d30e71619)
11da177e4SLinus Torvalds /*
2be21871fSAndrei Emeltchenko    RFCOMM implementation for Linux Bluetooth stack (BlueZ)
31da177e4SLinus Torvalds    Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
41da177e4SLinus Torvalds    Copyright (C) 2002 Marcel Holtmann <marcel@holtmann.org>
51da177e4SLinus Torvalds 
61da177e4SLinus Torvalds    This program is free software; you can redistribute it and/or modify
71da177e4SLinus Torvalds    it under the terms of the GNU General Public License version 2 as
81da177e4SLinus Torvalds    published by the Free Software Foundation;
91da177e4SLinus Torvalds 
101da177e4SLinus Torvalds    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
111da177e4SLinus Torvalds    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
121da177e4SLinus Torvalds    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
131da177e4SLinus Torvalds    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
141da177e4SLinus Torvalds    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
151da177e4SLinus Torvalds    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
161da177e4SLinus Torvalds    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
171da177e4SLinus Torvalds    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
181da177e4SLinus Torvalds 
191da177e4SLinus Torvalds    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
201da177e4SLinus Torvalds    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
211da177e4SLinus Torvalds    SOFTWARE IS DISCLAIMED.
221da177e4SLinus Torvalds */
231da177e4SLinus Torvalds 
24dab6b5daSElena Reshetova #include <linux/refcount.h>
25dab6b5daSElena Reshetova 
261da177e4SLinus Torvalds #ifndef __RFCOMM_H
271da177e4SLinus Torvalds #define __RFCOMM_H
281da177e4SLinus Torvalds 
291da177e4SLinus Torvalds #define RFCOMM_CONN_TIMEOUT (HZ * 30)
301da177e4SLinus Torvalds #define RFCOMM_DISC_TIMEOUT (HZ * 20)
311da177e4SLinus Torvalds #define RFCOMM_AUTH_TIMEOUT (HZ * 25)
329e726b17SLuiz Augusto von Dentz #define RFCOMM_IDLE_TIMEOUT (HZ * 2)
331da177e4SLinus Torvalds 
341da177e4SLinus Torvalds #define RFCOMM_DEFAULT_MTU	127
351da177e4SLinus Torvalds #define RFCOMM_DEFAULT_CREDITS	7
361da177e4SLinus Torvalds 
371da177e4SLinus Torvalds #define RFCOMM_MAX_CREDITS	40
381da177e4SLinus Torvalds 
391da177e4SLinus Torvalds #define RFCOMM_SKB_HEAD_RESERVE	8
401da177e4SLinus Torvalds #define RFCOMM_SKB_TAIL_RESERVE	2
411da177e4SLinus Torvalds #define RFCOMM_SKB_RESERVE  (RFCOMM_SKB_HEAD_RESERVE + RFCOMM_SKB_TAIL_RESERVE)
421da177e4SLinus Torvalds 
431da177e4SLinus Torvalds #define RFCOMM_SABM	0x2f
441da177e4SLinus Torvalds #define RFCOMM_DISC	0x43
451da177e4SLinus Torvalds #define RFCOMM_UA	0x63
461da177e4SLinus Torvalds #define RFCOMM_DM	0x0f
471da177e4SLinus Torvalds #define RFCOMM_UIH	0xef
481da177e4SLinus Torvalds 
491da177e4SLinus Torvalds #define RFCOMM_TEST	0x08
501da177e4SLinus Torvalds #define RFCOMM_FCON	0x28
511da177e4SLinus Torvalds #define RFCOMM_FCOFF	0x18
521da177e4SLinus Torvalds #define RFCOMM_MSC	0x38
531da177e4SLinus Torvalds #define RFCOMM_RPN	0x24
541da177e4SLinus Torvalds #define RFCOMM_RLS	0x14
551da177e4SLinus Torvalds #define RFCOMM_PN	0x20
561da177e4SLinus Torvalds #define RFCOMM_NSC	0x04
571da177e4SLinus Torvalds 
581da177e4SLinus Torvalds #define RFCOMM_V24_FC	0x02
591da177e4SLinus Torvalds #define RFCOMM_V24_RTC	0x04
601da177e4SLinus Torvalds #define RFCOMM_V24_RTR	0x08
611da177e4SLinus Torvalds #define RFCOMM_V24_IC	0x40
621da177e4SLinus Torvalds #define RFCOMM_V24_DV	0x80
631da177e4SLinus Torvalds 
641da177e4SLinus Torvalds #define RFCOMM_RPN_BR_2400	0x0
651da177e4SLinus Torvalds #define RFCOMM_RPN_BR_4800	0x1
661da177e4SLinus Torvalds #define RFCOMM_RPN_BR_7200	0x2
671da177e4SLinus Torvalds #define RFCOMM_RPN_BR_9600	0x3
681da177e4SLinus Torvalds #define RFCOMM_RPN_BR_19200	0x4
691da177e4SLinus Torvalds #define RFCOMM_RPN_BR_38400	0x5
701da177e4SLinus Torvalds #define RFCOMM_RPN_BR_57600	0x6
711da177e4SLinus Torvalds #define RFCOMM_RPN_BR_115200	0x7
721da177e4SLinus Torvalds #define RFCOMM_RPN_BR_230400	0x8
731da177e4SLinus Torvalds 
741da177e4SLinus Torvalds #define RFCOMM_RPN_DATA_5	0x0
751da177e4SLinus Torvalds #define RFCOMM_RPN_DATA_6	0x1
761da177e4SLinus Torvalds #define RFCOMM_RPN_DATA_7	0x2
771da177e4SLinus Torvalds #define RFCOMM_RPN_DATA_8	0x3
781da177e4SLinus Torvalds 
791da177e4SLinus Torvalds #define RFCOMM_RPN_STOP_1	0
801da177e4SLinus Torvalds #define RFCOMM_RPN_STOP_15	1
811da177e4SLinus Torvalds 
821da177e4SLinus Torvalds #define RFCOMM_RPN_PARITY_NONE	0x0
833a5e903cSJ. Suter #define RFCOMM_RPN_PARITY_ODD	0x1
843a5e903cSJ. Suter #define RFCOMM_RPN_PARITY_EVEN	0x3
853a5e903cSJ. Suter #define RFCOMM_RPN_PARITY_MARK	0x5
861da177e4SLinus Torvalds #define RFCOMM_RPN_PARITY_SPACE	0x7
871da177e4SLinus Torvalds 
881da177e4SLinus Torvalds #define RFCOMM_RPN_FLOW_NONE	0x00
891da177e4SLinus Torvalds 
901da177e4SLinus Torvalds #define RFCOMM_RPN_XON_CHAR	0x11
911da177e4SLinus Torvalds #define RFCOMM_RPN_XOFF_CHAR	0x13
921da177e4SLinus Torvalds 
931da177e4SLinus Torvalds #define RFCOMM_RPN_PM_BITRATE		0x0001
941da177e4SLinus Torvalds #define RFCOMM_RPN_PM_DATA		0x0002
951da177e4SLinus Torvalds #define RFCOMM_RPN_PM_STOP		0x0004
961da177e4SLinus Torvalds #define RFCOMM_RPN_PM_PARITY		0x0008
971da177e4SLinus Torvalds #define RFCOMM_RPN_PM_PARITY_TYPE	0x0010
981da177e4SLinus Torvalds #define RFCOMM_RPN_PM_XON		0x0020
991da177e4SLinus Torvalds #define RFCOMM_RPN_PM_XOFF		0x0040
1001da177e4SLinus Torvalds #define RFCOMM_RPN_PM_FLOW		0x3F00
1011da177e4SLinus Torvalds 
1021da177e4SLinus Torvalds #define RFCOMM_RPN_PM_ALL		0x3F7F
1031da177e4SLinus Torvalds 
1041da177e4SLinus Torvalds struct rfcomm_hdr {
1051da177e4SLinus Torvalds 	u8 addr;
1061da177e4SLinus Torvalds 	u8 ctrl;
107285b4e90SAndrei Emeltchenko 	u8 len;    /* Actual size can be 2 bytes */
10866c853ccSGustavo F. Padovan } __packed;
1091da177e4SLinus Torvalds 
1101da177e4SLinus Torvalds struct rfcomm_cmd {
1111da177e4SLinus Torvalds 	u8 addr;
1121da177e4SLinus Torvalds 	u8 ctrl;
1131da177e4SLinus Torvalds 	u8 len;
1141da177e4SLinus Torvalds 	u8 fcs;
11566c853ccSGustavo F. Padovan } __packed;
1161da177e4SLinus Torvalds 
1171da177e4SLinus Torvalds struct rfcomm_mcc {
1181da177e4SLinus Torvalds 	u8 type;
1191da177e4SLinus Torvalds 	u8 len;
12066c853ccSGustavo F. Padovan } __packed;
1211da177e4SLinus Torvalds 
1221da177e4SLinus Torvalds struct rfcomm_pn {
1231da177e4SLinus Torvalds 	u8  dlci;
1241da177e4SLinus Torvalds 	u8  flow_ctrl;
1251da177e4SLinus Torvalds 	u8  priority;
1261da177e4SLinus Torvalds 	u8  ack_timer;
1276ba9c755SAl Viro 	__le16 mtu;
1281da177e4SLinus Torvalds 	u8  max_retrans;
1291da177e4SLinus Torvalds 	u8  credits;
13066c853ccSGustavo F. Padovan } __packed;
1311da177e4SLinus Torvalds 
1321da177e4SLinus Torvalds struct rfcomm_rpn {
1331da177e4SLinus Torvalds 	u8  dlci;
1341da177e4SLinus Torvalds 	u8  bit_rate;
1351da177e4SLinus Torvalds 	u8  line_settings;
1361da177e4SLinus Torvalds 	u8  flow_ctrl;
1371da177e4SLinus Torvalds 	u8  xon_char;
1381da177e4SLinus Torvalds 	u8  xoff_char;
1396ba9c755SAl Viro 	__le16 param_mask;
14066c853ccSGustavo F. Padovan } __packed;
1411da177e4SLinus Torvalds 
1421da177e4SLinus Torvalds struct rfcomm_rls {
1431da177e4SLinus Torvalds 	u8  dlci;
1441da177e4SLinus Torvalds 	u8  status;
14566c853ccSGustavo F. Padovan } __packed;
1461da177e4SLinus Torvalds 
1471da177e4SLinus Torvalds struct rfcomm_msc {
1481da177e4SLinus Torvalds 	u8  dlci;
1491da177e4SLinus Torvalds 	u8  v24_sig;
15066c853ccSGustavo F. Padovan } __packed;
1511da177e4SLinus Torvalds 
1521da177e4SLinus Torvalds /* ---- Core structures, flags etc ---- */
1531da177e4SLinus Torvalds 
1541da177e4SLinus Torvalds struct rfcomm_session {
1551da177e4SLinus Torvalds 	struct list_head list;
1561da177e4SLinus Torvalds 	struct socket   *sock;
1579e726b17SLuiz Augusto von Dentz 	struct timer_list timer;
1581da177e4SLinus Torvalds 	unsigned long    state;
1591da177e4SLinus Torvalds 	unsigned long    flags;
1601da177e4SLinus Torvalds 	int              initiator;
1611da177e4SLinus Torvalds 
1621da177e4SLinus Torvalds 	/* Default DLC parameters */
1631da177e4SLinus Torvalds 	int    cfc;
1641da177e4SLinus Torvalds 	uint   mtu;
1651da177e4SLinus Torvalds 
1661da177e4SLinus Torvalds 	struct list_head dlcs;
1671da177e4SLinus Torvalds };
1681da177e4SLinus Torvalds 
1691da177e4SLinus Torvalds struct rfcomm_dlc {
1701da177e4SLinus Torvalds 	struct list_head      list;
1711da177e4SLinus Torvalds 	struct rfcomm_session *session;
1721da177e4SLinus Torvalds 	struct sk_buff_head   tx_queue;
1731da177e4SLinus Torvalds 	struct timer_list     timer;
1741da177e4SLinus Torvalds 
17586aae6c7SLibor Pechacek 	struct mutex  lock;
1761da177e4SLinus Torvalds 	unsigned long state;
1771da177e4SLinus Torvalds 	unsigned long flags;
178dab6b5daSElena Reshetova 	refcount_t    refcnt;
1791da177e4SLinus Torvalds 	u8            dlci;
1801da177e4SLinus Torvalds 	u8            addr;
1811da177e4SLinus Torvalds 	u8            priority;
1821da177e4SLinus Torvalds 	u8            v24_sig;
1838b6b3da7SMarcel Holtmann 	u8            remote_v24_sig;
1841da177e4SLinus Torvalds 	u8            mscex;
18577db1980SMarcel Holtmann 	u8            out;
1869f2c8a03SMarcel Holtmann 	u8            sec_level;
1879f2c8a03SMarcel Holtmann 	u8            role_switch;
188bb23c0abSMarcel Holtmann 	u32           defer_setup;
1891da177e4SLinus Torvalds 
1901da177e4SLinus Torvalds 	uint          mtu;
1911da177e4SLinus Torvalds 	uint          cfc;
1921da177e4SLinus Torvalds 	uint          rx_credits;
1931da177e4SLinus Torvalds 	uint          tx_credits;
1941da177e4SLinus Torvalds 
1951da177e4SLinus Torvalds 	void          *owner;
1961da177e4SLinus Torvalds 
1971da177e4SLinus Torvalds 	void (*data_ready)(struct rfcomm_dlc *d, struct sk_buff *skb);
1981da177e4SLinus Torvalds 	void (*state_change)(struct rfcomm_dlc *d, int err);
1991da177e4SLinus Torvalds 	void (*modem_status)(struct rfcomm_dlc *d, u8 v24_sig);
2001da177e4SLinus Torvalds };
2011da177e4SLinus Torvalds 
2021da177e4SLinus Torvalds /* DLC and session flags */
2031da177e4SLinus Torvalds #define RFCOMM_RX_THROTTLED 0
2041da177e4SLinus Torvalds #define RFCOMM_TX_THROTTLED 1
2051da177e4SLinus Torvalds #define RFCOMM_TIMED_OUT    2
2061da177e4SLinus Torvalds #define RFCOMM_MSC_PENDING  3
2078c84b830SMarcel Holtmann #define RFCOMM_SEC_PENDING  4
2088c84b830SMarcel Holtmann #define RFCOMM_AUTH_PENDING 5
2098c84b830SMarcel Holtmann #define RFCOMM_AUTH_ACCEPT  6
2108c84b830SMarcel Holtmann #define RFCOMM_AUTH_REJECT  7
2118c84b830SMarcel Holtmann #define RFCOMM_DEFER_SETUP  8
21288149db4SSzymon Janc #define RFCOMM_ENC_DROP     9
2131da177e4SLinus Torvalds 
2141da177e4SLinus Torvalds /* Scheduling flags and events */
2151da177e4SLinus Torvalds #define RFCOMM_SCHED_WAKEUP 31
2161da177e4SLinus Torvalds 
2171da177e4SLinus Torvalds /* MSC exchange flags */
2181da177e4SLinus Torvalds #define RFCOMM_MSCEX_TX     1
2191da177e4SLinus Torvalds #define RFCOMM_MSCEX_RX     2
2201da177e4SLinus Torvalds #define RFCOMM_MSCEX_OK     (RFCOMM_MSCEX_TX + RFCOMM_MSCEX_RX)
2211da177e4SLinus Torvalds 
2221da177e4SLinus Torvalds /* CFC states */
2231da177e4SLinus Torvalds #define RFCOMM_CFC_UNKNOWN  -1
2241da177e4SLinus Torvalds #define RFCOMM_CFC_DISABLED 0
2251da177e4SLinus Torvalds #define RFCOMM_CFC_ENABLED  RFCOMM_MAX_CREDITS
2261da177e4SLinus Torvalds 
2273a5e903cSJ. Suter /* ---- RFCOMM SEND RPN ---- */
2283a5e903cSJ. Suter int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci,
2293a5e903cSJ. Suter 			u8 bit_rate, u8 data_bits, u8 stop_bits,
2303a5e903cSJ. Suter 			u8 parity, u8 flow_ctrl_settings,
2313a5e903cSJ. Suter 			u8 xon_char, u8 xoff_char, u16 param_mask);
2323a5e903cSJ. Suter 
2331da177e4SLinus Torvalds /* ---- RFCOMM DLCs (channels) ---- */
234dd0fc66fSAl Viro struct rfcomm_dlc *rfcomm_dlc_alloc(gfp_t prio);
2351da177e4SLinus Torvalds void rfcomm_dlc_free(struct rfcomm_dlc *d);
2365a9d0a3fSWaldemar Rymarkiewicz int  rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst,
2375a9d0a3fSWaldemar Rymarkiewicz 								u8 channel);
2381da177e4SLinus Torvalds int  rfcomm_dlc_close(struct rfcomm_dlc *d, int reason);
2391da177e4SLinus Torvalds int  rfcomm_dlc_send(struct rfcomm_dlc *d, struct sk_buff *skb);
24072e5108cSPeter Hurley void rfcomm_dlc_send_noerror(struct rfcomm_dlc *d, struct sk_buff *skb);
2411da177e4SLinus Torvalds int  rfcomm_dlc_set_modem_status(struct rfcomm_dlc *d, u8 v24_sig);
2421da177e4SLinus Torvalds int  rfcomm_dlc_get_modem_status(struct rfcomm_dlc *d, u8 *v24_sig);
243bb23c0abSMarcel Holtmann void rfcomm_dlc_accept(struct rfcomm_dlc *d);
244c10a848cSPeter Hurley struct rfcomm_dlc *rfcomm_dlc_exists(bdaddr_t *src, bdaddr_t *dst, u8 channel);
2451da177e4SLinus Torvalds 
24686aae6c7SLibor Pechacek #define rfcomm_dlc_lock(d)     mutex_lock(&d->lock)
24786aae6c7SLibor Pechacek #define rfcomm_dlc_unlock(d)   mutex_unlock(&d->lock)
2481da177e4SLinus Torvalds 
rfcomm_dlc_hold(struct rfcomm_dlc * d)2491da177e4SLinus Torvalds static inline void rfcomm_dlc_hold(struct rfcomm_dlc *d)
2501da177e4SLinus Torvalds {
251dab6b5daSElena Reshetova 	refcount_inc(&d->refcnt);
2521da177e4SLinus Torvalds }
2531da177e4SLinus Torvalds 
rfcomm_dlc_put(struct rfcomm_dlc * d)2541da177e4SLinus Torvalds static inline void rfcomm_dlc_put(struct rfcomm_dlc *d)
2551da177e4SLinus Torvalds {
256dab6b5daSElena Reshetova 	if (refcount_dec_and_test(&d->refcnt))
2571da177e4SLinus Torvalds 		rfcomm_dlc_free(d);
2581da177e4SLinus Torvalds }
2591da177e4SLinus Torvalds 
260e74e58f8SJoe Perches void __rfcomm_dlc_throttle(struct rfcomm_dlc *d);
261e74e58f8SJoe Perches void __rfcomm_dlc_unthrottle(struct rfcomm_dlc *d);
2621da177e4SLinus Torvalds 
rfcomm_dlc_throttle(struct rfcomm_dlc * d)2631da177e4SLinus Torvalds static inline void rfcomm_dlc_throttle(struct rfcomm_dlc *d)
2641da177e4SLinus Torvalds {
2651da177e4SLinus Torvalds 	if (!test_and_set_bit(RFCOMM_RX_THROTTLED, &d->flags))
2661da177e4SLinus Torvalds 		__rfcomm_dlc_throttle(d);
2671da177e4SLinus Torvalds }
2681da177e4SLinus Torvalds 
rfcomm_dlc_unthrottle(struct rfcomm_dlc * d)2691da177e4SLinus Torvalds static inline void rfcomm_dlc_unthrottle(struct rfcomm_dlc *d)
2701da177e4SLinus Torvalds {
2711da177e4SLinus Torvalds 	if (test_and_clear_bit(RFCOMM_RX_THROTTLED, &d->flags))
2721da177e4SLinus Torvalds 		__rfcomm_dlc_unthrottle(d);
2731da177e4SLinus Torvalds }
2741da177e4SLinus Torvalds 
2751da177e4SLinus Torvalds /* ---- RFCOMM sessions ---- */
2765a9d0a3fSWaldemar Rymarkiewicz void   rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src,
2775a9d0a3fSWaldemar Rymarkiewicz 								bdaddr_t *dst);
2781da177e4SLinus Torvalds 
2791da177e4SLinus Torvalds /* ---- RFCOMM sockets ---- */
2801da177e4SLinus Torvalds struct sockaddr_rc {
2811da177e4SLinus Torvalds 	sa_family_t	rc_family;
2821da177e4SLinus Torvalds 	bdaddr_t	rc_bdaddr;
2831da177e4SLinus Torvalds 	u8		rc_channel;
2841da177e4SLinus Torvalds };
2851da177e4SLinus Torvalds 
2861da177e4SLinus Torvalds #define RFCOMM_CONNINFO	0x02
2871da177e4SLinus Torvalds struct rfcomm_conninfo {
2881da177e4SLinus Torvalds 	__u16 hci_handle;
2891da177e4SLinus Torvalds 	__u8  dev_class[3];
2901da177e4SLinus Torvalds };
2911da177e4SLinus Torvalds 
2921da177e4SLinus Torvalds #define RFCOMM_LM	0x03
2931da177e4SLinus Torvalds #define RFCOMM_LM_MASTER	0x0001
2941da177e4SLinus Torvalds #define RFCOMM_LM_AUTH		0x0002
2951da177e4SLinus Torvalds #define RFCOMM_LM_ENCRYPT	0x0004
2961da177e4SLinus Torvalds #define RFCOMM_LM_TRUSTED	0x0008
2971da177e4SLinus Torvalds #define RFCOMM_LM_RELIABLE	0x0010
2981da177e4SLinus Torvalds #define RFCOMM_LM_SECURE	0x0020
2992c068e0bSMarcel Holtmann #define RFCOMM_LM_FIPS		0x0040
3001da177e4SLinus Torvalds 
3011da177e4SLinus Torvalds #define rfcomm_pi(sk) ((struct rfcomm_pinfo *) sk)
3021da177e4SLinus Torvalds 
3031da177e4SLinus Torvalds struct rfcomm_pinfo {
3041da177e4SLinus Torvalds 	struct bt_sock bt;
30594a86df0SMarcel Holtmann 	bdaddr_t src;
30694a86df0SMarcel Holtmann 	bdaddr_t dst;
3071da177e4SLinus Torvalds 	struct rfcomm_dlc   *dlc;
3081da177e4SLinus Torvalds 	u8     channel;
3099f2c8a03SMarcel Holtmann 	u8     sec_level;
3109f2c8a03SMarcel Holtmann 	u8     role_switch;
3111da177e4SLinus Torvalds };
3121da177e4SLinus Torvalds 
3131da177e4SLinus Torvalds int  rfcomm_init_sockets(void);
3141da177e4SLinus Torvalds void rfcomm_cleanup_sockets(void);
3151da177e4SLinus Torvalds 
3165a9d0a3fSWaldemar Rymarkiewicz int  rfcomm_connect_ind(struct rfcomm_session *s, u8 channel,
3175a9d0a3fSWaldemar Rymarkiewicz 							struct rfcomm_dlc **d);
3181da177e4SLinus Torvalds 
3191da177e4SLinus Torvalds /* ---- RFCOMM TTY ---- */
3201da177e4SLinus Torvalds #define RFCOMM_MAX_DEV  256
3211da177e4SLinus Torvalds 
3221da177e4SLinus Torvalds #define RFCOMMCREATEDEV		_IOW('R', 200, int)
3231da177e4SLinus Torvalds #define RFCOMMRELEASEDEV	_IOW('R', 201, int)
3241da177e4SLinus Torvalds #define RFCOMMGETDEVLIST	_IOR('R', 210, int)
3251da177e4SLinus Torvalds #define RFCOMMGETDEVINFO	_IOR('R', 211, int)
3261da177e4SLinus Torvalds #define RFCOMMSTEALDLC		_IOW('R', 220, int)
3271da177e4SLinus Torvalds 
3281c64834eSPeter Hurley /* rfcomm_dev.flags bit definitions */
3291da177e4SLinus Torvalds #define RFCOMM_REUSE_DLC      0
3301da177e4SLinus Torvalds #define RFCOMM_RELEASE_ONHUP  1
3311da177e4SLinus Torvalds #define RFCOMM_HANGUP_NOW     2
3321da177e4SLinus Torvalds #define RFCOMM_TTY_ATTACHED   3
3331c64834eSPeter Hurley #define RFCOMM_DEFUNCT_BIT4   4	  /* don't reuse this bit - userspace visible */
3341c64834eSPeter Hurley 
3351c64834eSPeter Hurley /* rfcomm_dev.status bit definitions */
3361c64834eSPeter Hurley #define RFCOMM_DEV_RELEASED   0
33780ea7337SPeter Hurley #define RFCOMM_TTY_OWNED      1
3381da177e4SLinus Torvalds 
3391da177e4SLinus Torvalds struct rfcomm_dev_req {
3401da177e4SLinus Torvalds 	s16      dev_id;
3411da177e4SLinus Torvalds 	u32      flags;
3421da177e4SLinus Torvalds 	bdaddr_t src;
3431da177e4SLinus Torvalds 	bdaddr_t dst;
3441da177e4SLinus Torvalds 	u8       channel;
3451da177e4SLinus Torvalds };
3461da177e4SLinus Torvalds 
3471da177e4SLinus Torvalds struct rfcomm_dev_info {
3481da177e4SLinus Torvalds 	s16      id;
3491da177e4SLinus Torvalds 	u32      flags;
3501da177e4SLinus Torvalds 	u16      state;
3511da177e4SLinus Torvalds 	bdaddr_t src;
3521da177e4SLinus Torvalds 	bdaddr_t dst;
3531da177e4SLinus Torvalds 	u8       channel;
3541da177e4SLinus Torvalds };
3551da177e4SLinus Torvalds 
3561da177e4SLinus Torvalds struct rfcomm_dev_list_req {
3571da177e4SLinus Torvalds 	u16      dev_num;
358*a7e45454SGustavo A. R. Silva 	struct   rfcomm_dev_info dev_info[];
3591da177e4SLinus Torvalds };
3601da177e4SLinus Torvalds 
3611da177e4SLinus Torvalds int  rfcomm_dev_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
362af0d3b10SDave Young 
363af0d3b10SDave Young #ifdef CONFIG_BT_RFCOMM_TTY
3641da177e4SLinus Torvalds int  rfcomm_init_ttys(void);
3651da177e4SLinus Torvalds void rfcomm_cleanup_ttys(void);
366af0d3b10SDave Young #else
rfcomm_init_ttys(void)367af0d3b10SDave Young static inline int rfcomm_init_ttys(void)
368af0d3b10SDave Young {
369af0d3b10SDave Young 	return 0;
370af0d3b10SDave Young }
rfcomm_cleanup_ttys(void)371af0d3b10SDave Young static inline void rfcomm_cleanup_ttys(void)
372af0d3b10SDave Young {
373af0d3b10SDave Young }
374af0d3b10SDave Young #endif
3751da177e4SLinus Torvalds #endif /* __RFCOMM_H */
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