1/*********************************************************************
  2 *                
  3 * Filename:      ircomm_tty.h
  4 * Version:       
  5 * Description:   
  6 * Status:        Experimental.
  7 * Author:        Dag Brattli <dagb@cs.uit.no>
  8 * Created at:    Sun Jun  6 23:24:22 1999
  9 * Modified at:   Fri Jan 28 13:16:57 2000
 10 * Modified by:   Dag Brattli <dagb@cs.uit.no>
 11 * 
 12 *     Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
 13 *     
 14 *     This program is free software; you can redistribute it and/or 
 15 *     modify it under the terms of the GNU General Public License as 
 16 *     published by the Free Software Foundation; either version 2 of 
 17 *     the License, or (at your option) any later version.
 18 * 
 19 *     This program is distributed in the hope that it will be useful,
 20 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 21 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 22 *     GNU General Public License for more details.
 23 * 
 24 *     You should have received a copy of the GNU General Public License 
 25 *     along with this program; if not, see <http://www.gnu.org/licenses/>.
 26 *     
 27 ********************************************************************/
 28
 29#ifndef IRCOMM_TTY_H
 30#define IRCOMM_TTY_H
 31
 32#include <linux/serial.h>
 33#include <linux/termios.h>
 34#include <linux/timer.h>
 35#include <linux/tty.h>		/* struct tty_struct */
 36
 37#include <net/irda/irias_object.h>
 38#include <net/irda/ircomm_core.h>
 39#include <net/irda/ircomm_param.h>
 40
 41#define IRCOMM_TTY_PORTS 32
 42#define IRCOMM_TTY_MAGIC 0x3432
 43#define IRCOMM_TTY_MAJOR 161
 44#define IRCOMM_TTY_MINOR 0
 45
 46/* This is used as an initial value to max_header_size before the proper
 47 * value is filled in (5 for ttp, 4 for lmp). This allow us to detect
 48 * the state of the underlying connection. - Jean II */
 49#define IRCOMM_TTY_HDR_UNINITIALISED	16
 50/* Same for payload size. See qos.c for the smallest max data size */
 51#define IRCOMM_TTY_DATA_UNINITIALISED	(64 - IRCOMM_TTY_HDR_UNINITIALISED)
 52
 53/*
 54 * IrCOMM TTY driver state
 55 */
 56struct ircomm_tty_cb {
 57	irda_queue_t queue;            /* Must be first */
 58	struct tty_port port;
 59	magic_t magic;
 60
 61	int state;                /* Connect state */
 62
 63	struct ircomm_cb *ircomm; /* IrCOMM layer instance */
 64
 65	struct sk_buff *tx_skb;   /* Transmit buffer */
 66	struct sk_buff *ctrl_skb; /* Control data buffer */
 67
 68	/* Parameters */
 69	struct ircomm_params settings;
 70
 71	__u8 service_type;        /* The service that we support */
 72	int client;               /* True if we are a client */
 73	LOCAL_FLOW flow;          /* IrTTP flow status */
 74
 75	int line;
 76
 77	__u8 dlsap_sel;
 78	__u8 slsap_sel;
 79
 80	__u32 saddr;
 81	__u32 daddr;
 82
 83	__u32 max_data_size;   /* Max data we can transmit in one packet */
 84	__u32 max_header_size; /* The amount of header space we must reserve */
 85	__u32 tx_data_size;	/* Max data size of current tx_skb */
 86
 87	struct iriap_cb *iriap; /* Instance used for querying remote IAS */
 88	struct ias_object* obj;
 89	void *skey;
 90	void *ckey;
 91
 92	struct timer_list watchdog_timer;
 93	struct work_struct  tqueue;
 94
 95	/* Protect concurent access to :
 96	 *	o self->ctrl_skb
 97	 *	o self->tx_skb
 98	 * Maybe other things may gain to be protected as well...
 99	 * Jean II */
100	spinlock_t spinlock;
101};
102
103void ircomm_tty_start(struct tty_struct *tty);
104void ircomm_tty_check_modem_status(struct ircomm_tty_cb *self);
105
106int ircomm_tty_tiocmget(struct tty_struct *tty);
107int ircomm_tty_tiocmset(struct tty_struct *tty, unsigned int set,
108			unsigned int clear);
109int ircomm_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
110		     unsigned long arg);
111void ircomm_tty_set_termios(struct tty_struct *tty,
112			    struct ktermios *old_termios);
113
114#endif
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