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