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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 <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)

/*

 * 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;

        __u32 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;

        int skey;

        int ckey;

        struct termios    normal_termios;

        struct termios    callout_termios;

        wait_queue_head_t open_wait;

        wait_queue_head_t close_wait;

        struct timer_list watchdog_timer;

        struct tq_struct  tqueue;

        unsigned short    close_delay;

        unsigned short    closing_wait; /* time to wait before closing */

        long session;           /* Session of opening process */

        long pgrp;              /* pgrp of opening process */

        int  open_count;

        int  blocked_open;      /* # of blocked opens */

};

void ircomm_tty_start(struct tty_struct *tty);

void ircomm_tty_stop(struct tty_struct *tty);

void ircomm_tty_check_modem_status(struct ircomm_tty_cb *self);

extern void ircomm_tty_change_speed(struct ircomm_tty_cb *self);

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 termios *old_termios);

extern hashbin_t *ircomm_tty;

#endif