1 /*********************************************************************
3 * Filename: ircomm_tty.h
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>
12 * Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
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.
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.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 ********************************************************************/
34 #include <linux/serial.h>
35 #include <linux/termios.h>
36 #include <linux/timer.h>
38 #include <net/irda/irias_object.h>
39 #include <net/irda/ircomm_core.h>
40 #include <net/irda/ircomm_param.h>
42 #define IRCOMM_TTY_PORTS 32
43 #define IRCOMM_TTY_MAGIC 0x3432
44 #define IRCOMM_TTY_MAJOR 161
45 #define IRCOMM_TTY_MINOR 0
47 /* This is used as an initial value to max_header_size before the proper
48 * value is filled in (5 for ttp, 4 for lmp). This allow us to detect
49 * the state of the underlying connection. - Jean II */
50 #define IRCOMM_TTY_HDR_UNINITIALISED 16
51 /* Same for payload size. See qos.c for the smallest max data size */
52 #define IRCOMM_TTY_DATA_UNINITIALISED (64 - IRCOMM_TTY_HDR_UNINITIALISED)
55 * IrCOMM TTY driver state
57 struct ircomm_tty_cb {
58 irda_queue_t queue; /* Must be first */
61 int state; /* Connect state */
63 struct tty_struct *tty;
64 struct ircomm_cb *ircomm; /* IrCOMM layer instance */
66 struct sk_buff *tx_skb; /* Transmit buffer */
67 struct sk_buff *ctrl_skb; /* Control data buffer */
70 struct ircomm_params settings;
72 __u8 service_type; /* The service that we support */
73 int client; /* True if we are a client */
74 LOCAL_FLOW flow; /* IrTTP flow status */
85 __u32 max_data_size; /* Max data we can transmit in one packet */
86 __u32 max_header_size; /* The amount of header space we must reserve */
87 __u32 tx_data_size; /* Max data size of current tx_skb */
89 struct iriap_cb *iriap; /* Instance used for querying remote IAS */
90 struct ias_object* obj;
94 struct termios normal_termios;
95 struct termios callout_termios;
97 wait_queue_head_t open_wait;
98 wait_queue_head_t close_wait;
99 struct timer_list watchdog_timer;
100 struct tq_struct tqueue;
102 unsigned short close_delay;
103 unsigned short closing_wait; /* time to wait before closing */
105 long session; /* Session of opening process */
106 long pgrp; /* pgrp of opening process */
108 int blocked_open; /* # of blocked opens */
111 void ircomm_tty_start(struct tty_struct *tty);
112 void ircomm_tty_stop(struct tty_struct *tty);
113 void ircomm_tty_check_modem_status(struct ircomm_tty_cb *self);
115 extern void ircomm_tty_change_speed(struct ircomm_tty_cb *self);
116 extern int ircomm_tty_ioctl(struct tty_struct *tty, struct file *file,
117 unsigned int cmd, unsigned long arg);
118 extern void ircomm_tty_set_termios(struct tty_struct *tty,
119 struct termios *old_termios);
120 extern hashbin_t *ircomm_tty;