LXR linux/include/net/irda/ircomm

   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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