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, write to the Free Software 26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 27 * MA 02111-1307 USA 28 * 29 ********************************************************************/ 30 31#ifndef IRCOMM_TTY_H 32#define IRCOMM_TTY_H 33 34#include <linux/serial.h> 35#include <linux/termios.h> 36#include <linux/timer.h> 37#include <linux/tty.h> /* struct tty_struct */ 38 39#include <net/irda/irias_object.h> 40#include <net/irda/ircomm_core.h> 41#include <net/irda/ircomm_param.h> 42 43#define IRCOMM_TTY_PORTS 32 44#define IRCOMM_TTY_MAGIC 0x3432 45#define IRCOMM_TTY_MAJOR 161 46#define IRCOMM_TTY_MINOR 0 47 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) 54 55/* 56 * IrCOMM TTY driver state 57 */ 58struct ircomm_tty_cb { 59 irda_queue_t queue; /* Must be first */ 60 struct tty_port port; 61 magic_t magic; 62 63 int state; /* Connect state */ 64 65 struct ircomm_cb *ircomm; /* IrCOMM layer instance */ 66 67 struct sk_buff *tx_skb; /* Transmit buffer */ 68 struct sk_buff *ctrl_skb; /* Control data buffer */ 69 70 /* Parameters */ 71 struct ircomm_params settings; 72 73 __u8 service_type; /* The service that we support */ 74 int client; /* True if we are a client */ 75 LOCAL_FLOW flow; /* IrTTP flow status */ 76 77 int line; 78 79 __u8 dlsap_sel; 80 __u8 slsap_sel; 81 82 __u32 saddr; 83 __u32 daddr; 84 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 */ 88 89 struct iriap_cb *iriap; /* Instance used for querying remote IAS */ 90 struct ias_object* obj; 91 void *skey; 92 void *ckey; 93 94 struct timer_list watchdog_timer; 95 struct work_struct tqueue; 96 97 /* Protect concurent access to : 98 * o self->ctrl_skb 99 * o self->tx_skb 100 * Maybe other things may gain to be protected as well... 101 * Jean II */ 102 spinlock_t spinlock; 103}; 104 105void ircomm_tty_start(struct tty_struct *tty); 106void ircomm_tty_check_modem_status(struct ircomm_tty_cb *self); 107 108extern int ircomm_tty_tiocmget(struct tty_struct *tty); 109extern int ircomm_tty_tiocmset(struct tty_struct *tty, 110 unsigned int set, unsigned int clear); 111extern int ircomm_tty_ioctl(struct tty_struct *tty, 112 unsigned int cmd, unsigned long arg); 113extern void ircomm_tty_set_termios(struct tty_struct *tty, 114 struct ktermios *old_termios); 115 116#endif 117 118 119 120 121 122 123 124