patch-2.4.21 linux-2.4.21/include/net/bluetooth/rfcomm.h

• Lines: 351
• Date: 2003-06-13 07:51:39.000000000 -0700
• Orig file: linux-2.4.20/include/net/bluetooth/rfcomm.h
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.20/include/net/bluetooth/rfcomm.h linux-2.4.21/include/net/bluetooth/rfcomm.h
@@ -0,0 +1,350 @@
+/* 
+   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.
+*/
+
+/* 
+   RPN support    -    Dirk Husemann <hud@zurich.ibm.com>
+*/
+
+/*
+ * $Id: rfcomm.h,v 1.31 2002/10/18 20:12:11 maxk Exp $
+ */
+
+#ifndef __RFCOMM_H
+#define __RFCOMM_H
+
+#define RFCOMM_PSM 3
+
+#define RFCOMM_CONN_TIMEOUT (HZ * 30)
+#define RFCOMM_DISC_TIMEOUT (HZ * 20)
+
+#define RFCOMM_DEFAULT_MTU	127
+#define RFCOMM_DEFAULT_CREDITS	7
+
+#define RFCOMM_MAX_L2CAP_MTU	1024
+#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	0x4
+#define RFCOMM_RPN_PARITY_EVEN	0x5
+#define RFCOMM_RPN_PARITY_MARK	0x6
+#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
+} __attribute__ ((packed));
+
+struct rfcomm_cmd {
+	u8 addr;
+	u8 ctrl;
+	u8 len;
+	u8 fcs;
+} __attribute__ ((packed));
+
+struct rfcomm_mcc {
+	u8 type;
+	u8 len;
+} __attribute__ ((packed));
+
+struct rfcomm_pn {
+	u8  dlci;
+	u8  flow_ctrl;
+	u8  priority;
+	u8  ack_timer;
+	u16 mtu;
+	u8  max_retrans;
+	u8  credits;
+} __attribute__ ((packed));
+
+struct rfcomm_rpn {
+	u8  dlci;
+	u8  bit_rate;
+	u8  line_settings;
+	u8  flow_ctrl;
+	u8  xon_char;
+	u8  xoff_char;
+	u16 param_mask;
+} __attribute__ ((packed));
+
+struct rfcomm_rls {
+	u8  dlci;
+	u8  status;
+} __attribute__ ((packed));
+
+struct rfcomm_msc {
+	u8  dlci;
+	u8  v24_sig;
+} __attribute__ ((packed));
+
+/* ---- Core structures, flags etc ---- */
+
+struct rfcomm_session {
+	struct list_head list;
+	struct socket   *sock;
+	unsigned long    state;
+	unsigned long    flags;
+	atomic_t         refcnt;
+	int              initiator;
+
+	/* Default DLC parameters */
+	uint   mtu;
+	uint   credits;
+
+	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;
+
+	uint          mtu;
+	u8            v24_sig;
+
+	uint          credits;
+	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_MSC_PENDING  2
+#define RFCOMM_TIMED_OUT    3
+
+/* Scheduling flags and events */
+#define RFCOMM_SCHED_STATE  0
+#define RFCOMM_SCHED_RX     1
+#define RFCOMM_SCHED_TX     2
+#define RFCOMM_SCHED_TIMEO  3
+#define RFCOMM_SCHED_WAKEUP 31
+
+extern struct task_struct *rfcomm_thread;
+extern unsigned long rfcomm_event;
+
+static inline void rfcomm_schedule(uint event)
+{
+	if (!rfcomm_thread)
+		return;
+	set_bit(RFCOMM_SCHED_WAKEUP, &rfcomm_event);
+	wake_up_process(rfcomm_thread);
+}
+
+extern struct semaphore rfcomm_sem;
+#define rfcomm_lock()	down(&rfcomm_sem);
+#define rfcomm_unlock()	up(&rfcomm_sem);
+
+/* ---- RFCOMM DLCs (channels) ---- */
+struct rfcomm_dlc *rfcomm_dlc_alloc(int 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);
+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);
+
+#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);
+}
+
+extern void FASTCALL(__rfcomm_dlc_throttle(struct rfcomm_dlc *d));
+extern void FASTCALL(__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 ---- */
+struct rfcomm_session *rfcomm_session_add(struct socket *sock, int state);
+struct rfcomm_session *rfcomm_session_get(bdaddr_t *src, bdaddr_t *dst);
+struct rfcomm_session *rfcomm_session_create(bdaddr_t *src, bdaddr_t *dst, int *err);
+void   rfcomm_session_del(struct rfcomm_session *s);
+void   rfcomm_session_close(struct rfcomm_session *s, int err);
+void   rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src, bdaddr_t *dst);
+
+static inline void rfcomm_session_hold(struct rfcomm_session *s)
+{
+	atomic_inc(&s->refcnt);
+}
+
+static inline void rfcomm_session_put(struct rfcomm_session *s)
+{
+	if (atomic_dec_and_test(&s->refcnt))
+		rfcomm_session_del(s);
+}
+
+/* ---- RFCOMM chechsum ---- */
+extern u8 rfcomm_crc_table[];
+
+/* ---- RFCOMM sockets ---- */
+struct sockaddr_rc {
+	sa_family_t rc_family;
+	bdaddr_t    rc_bdaddr;
+	u8          rc_channel;
+};
+
+#define rfcomm_pi(sk)	((struct rfcomm_pinfo *) &sk->tp_pinfo)
+
+struct rfcomm_pinfo {
+	struct rfcomm_dlc *dlc;
+	u8 channel;
+};
+
+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)
+
+#define RFCOMM_REUSE_DLC	0
+#define RFCOMM_RELEASE_ONHUP	1
+#define RFCOMM_HANGUP_NOW	2
+#define RFCOMM_TTY_ATTACHED	3
+
+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, unsigned long arg);
+int  rfcomm_init_ttys(void);
+void rfcomm_cleanup_ttys(void);
+
+#endif /* __RFCOMM_H */