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/*********************************************************************
*
* Filename: ircomm_tty.h
* Version:
* Description:
* Status: Experimental.
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Sun Jun 6 23:24:22 1999
* Modified at: Fri Jan 28 13:16:57 2000
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
********************************************************************/
#ifndef IRCOMM_TTY_H
#define IRCOMM_TTY_H
#include <linux/serial.h>
#include <linux/termios.h>
#include <linux/timer.h>
#include <linux/tty.h> /* struct tty_struct */
#include <net/irda/irias_object.h>
#include <net/irda/ircomm_core.h>
#include <net/irda/ircomm_param.h>
#define IRCOMM_TTY_PORTS 32
#define IRCOMM_TTY_MAGIC 0x3432
#define IRCOMM_TTY_MAJOR 161
#define IRCOMM_TTY_MINOR 0
/* This is used as an initial value to max_header_size before the proper
* value is filled in (5 for ttp, 4 for lmp). This allow us to detect
* the state of the underlying connection. - Jean II */
#define IRCOMM_TTY_HDR_UNINITIALISED 16
/* Same for payload size. See qos.c for the smallest max data size */
#define IRCOMM_TTY_DATA_UNINITIALISED (64 - IRCOMM_TTY_HDR_UNINITIALISED)
/* Those are really defined in include/linux/serial.h - Jean II */
#define ASYNC_B_INITIALIZED 31 /* Serial port was initialized */
#define ASYNC_B_NORMAL_ACTIVE 29 /* Normal device is active */
#define ASYNC_B_CLOSING 27 /* Serial port is closing */
/*
* IrCOMM TTY driver state
*/
struct ircomm_tty_cb {
irda_queue_t queue; /* Must be first */
magic_t magic;
int state; /* Connect state */
struct tty_struct *tty;
struct ircomm_cb *ircomm; /* IrCOMM layer instance */
struct sk_buff *tx_skb; /* Transmit buffer */
struct sk_buff *ctrl_skb; /* Control data buffer */
/* Parameters */
struct ircomm_params settings;
__u8 service_type; /* The service that we support */
int client; /* True if we are a client */
LOCAL_FLOW flow; /* IrTTP flow status */
int line;
unsigned long flags;
__u8 dlsap_sel;
__u8 slsap_sel;
__u32 saddr;
__u32 daddr;
__u32 max_data_size; /* Max data we can transmit in one packet */
__u32 max_header_size; /* The amount of header space we must reserve */
__u32 tx_data_size; /* Max data size of current tx_skb */
struct iriap_cb *iriap; /* Instance used for querying remote IAS */
struct ias_object* obj;
void *skey;
void *ckey;
wait_queue_head_t open_wait;
wait_queue_head_t close_wait;
struct timer_list watchdog_timer;
struct work_struct tqueue;
unsigned short close_delay;
unsigned short closing_wait; /* time to wait before closing */
int open_count;
int blocked_open; /* # of blocked opens */
/* Protect concurent access to :
* o self->open_count
* o self->ctrl_skb
* o self->tx_skb
* Maybe other things may gain to be protected as well...
* Jean II */
spinlock_t spinlock;
};
void ircomm_tty_start(struct tty_struct *tty);
void ircomm_tty_check_modem_status(struct ircomm_tty_cb *self);
extern int ircomm_tty_tiocmget(struct tty_struct *tty, struct file *file);
extern int ircomm_tty_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
extern int ircomm_tty_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg);
extern void ircomm_tty_set_termios(struct tty_struct *tty,
struct ktermios *old_termios);
extern hashbin_t *ircomm_tty;
#endif
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