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>
37 #include <linux/tty.h> /* struct tty_struct */
39 #include <net/irda/irias_object.h>
40 #include <net/irda/ircomm_core.h>
41 #include <net/irda/ircomm_param.h>
43 #define IRCOMM_TTY_PORTS 32
44 #define IRCOMM_TTY_MAGIC 0x3432
45 #define IRCOMM_TTY_MAJOR 161
46 #define IRCOMM_TTY_MINOR 0
48 /* This is used as an initial value to max_header_size before the proper
49 * value is filled in (5 for ttp, 4 for lmp). This allow us to detect
50 * the state of the underlying connection. - Jean II */
51 #define IRCOMM_TTY_HDR_UNINITIALISED 16
52 /* Same for payload size. See qos.c for the smallest max data size */
53 #define IRCOMM_TTY_DATA_UNINITIALISED (64 - IRCOMM_TTY_HDR_UNINITIALISED)
56 * IrCOMM TTY driver state
58 struct ircomm_tty_cb {
59 irda_queue_t queue; /* Must be first */
63 int state; /* Connect state */
65 struct tty_struct *tty;
66 struct ircomm_cb *ircomm; /* IrCOMM layer instance */
68 struct sk_buff *tx_skb; /* Transmit buffer */
69 struct sk_buff *ctrl_skb; /* Control data buffer */
72 struct ircomm_params settings;
74 __u8 service_type; /* The service that we support */
75 int client; /* True if we are a client */
76 LOCAL_FLOW flow; /* IrTTP flow status */
86 __u32 max_data_size; /* Max data we can transmit in one packet */
87 __u32 max_header_size; /* The amount of header space we must reserve */
88 __u32 tx_data_size; /* Max data size of current tx_skb */
90 struct iriap_cb *iriap; /* Instance used for querying remote IAS */
91 struct ias_object* obj;
95 struct timer_list watchdog_timer;
96 struct work_struct tqueue;
98 /* Protect concurent access to :
101 * Maybe other things may gain to be protected as well...
106 void ircomm_tty_start(struct tty_struct *tty);
107 void ircomm_tty_check_modem_status(struct ircomm_tty_cb *self);
109 extern int ircomm_tty_tiocmget(struct tty_struct *tty);
110 extern int ircomm_tty_tiocmset(struct tty_struct *tty,
111 unsigned int set, unsigned int clear);
112 extern int ircomm_tty_ioctl(struct tty_struct *tty,
113 unsigned int cmd, unsigned long arg);
114 extern void ircomm_tty_set_termios(struct tty_struct *tty,
115 struct ktermios *old_termios);