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 38 #include <net/irda/irias_object.h> 39 #include <net/irda/ircomm_core.h> 40 #include <net/irda/ircomm_param.h> 41 42 #define IRCOMM_TTY_PORTS 32 43 #define IRCOMM_TTY_MAGIC 0x3432 44 #define IRCOMM_TTY_MAJOR 161 45 #define IRCOMM_TTY_MINOR 0 46 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) 53 54 /* 55 * IrCOMM TTY driver state 56 */ 57 struct ircomm_tty_cb { 58 irda_queue_t queue; /* Must be first */ 59 magic_t magic; 60 61 int state; /* Connect state */ 62 63 struct tty_struct *tty; 64 struct ircomm_cb *ircomm; /* IrCOMM layer instance */ 65 66 struct sk_buff *tx_skb; /* Transmit buffer */ 67 struct sk_buff *ctrl_skb; /* Control data buffer */ 68 69 /* Parameters */ 70 struct ircomm_params settings; 71 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 */ 75 76 int line; 77 __u32 flags; 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 int skey; 92 int ckey; 93 94 struct termios normal_termios; 95 struct termios callout_termios; 96 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; 101 102 unsigned short close_delay; 103 unsigned short closing_wait; /* time to wait before closing */ 104 105 long session; /* Session of opening process */ 106 long pgrp; /* pgrp of opening process */ 107 int open_count; 108 int blocked_open; /* # of blocked opens */ 109 }; 110 111 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); 114 115 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; 121 122 #endif 123 124 125 126 127 128 129 130