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 /* Those are really defined in include/linux/serial.h - Jean II */ 56 #define ASYNC_B_INITIALIZED 31 /* Serial port was initialized */ 57 #define ASYNC_B_NORMAL_ACTIVE 29 /* Normal device is active */ 58 #define ASYNC_B_CLOSING 27 /* Serial port is closing */ 59 60 /* 61 * IrCOMM TTY driver state 62 */ 63 struct ircomm_tty_cb { 64 irda_queue_t queue; /* Must be first */ 65 magic_t magic; 66 67 int state; /* Connect state */ 68 69 struct tty_struct *tty; 70 struct ircomm_cb *ircomm; /* IrCOMM layer instance */ 71 72 struct sk_buff *tx_skb; /* Transmit buffer */ 73 struct sk_buff *ctrl_skb; /* Control data buffer */ 74 75 /* Parameters */ 76 struct ircomm_params settings; 77 78 __u8 service_type; /* The service that we support */ 79 int client; /* True if we are a client */ 80 LOCAL_FLOW flow; /* IrTTP flow status */ 81 82 int line; 83 unsigned long flags; 84 85 __u8 dlsap_sel; 86 __u8 slsap_sel; 87 88 __u32 saddr; 89 __u32 daddr; 90 91 __u32 max_data_size; /* Max data we can transmit in one packet */ 92 __u32 max_header_size; /* The amount of header space we must reserve */ 93 __u32 tx_data_size; /* Max data size of current tx_skb */ 94 95 struct iriap_cb *iriap; /* Instance used for querying remote IAS */ 96 struct ias_object* obj; 97 void *skey; 98 void *ckey; 99 100 wait_queue_head_t open_wait; 101 wait_queue_head_t close_wait; 102 struct timer_list watchdog_timer; 103 struct work_struct tqueue; 104 105 unsigned short close_delay; 106 unsigned short closing_wait; /* time to wait before closing */ 107 108 int open_count; 109 int blocked_open; /* # of blocked opens */ 110 111 /* Protect concurent access to : 112 * o self->open_count 113 * o self->ctrl_skb 114 * o self->tx_skb 115 * Maybe other things may gain to be protected as well... 116 * Jean II */ 117 spinlock_t spinlock; 118 }; 119 120 void ircomm_tty_start(struct tty_struct *tty); 121 void ircomm_tty_check_modem_status(struct ircomm_tty_cb *self); 122 123 extern int ircomm_tty_tiocmget(struct tty_struct *tty); 124 extern int ircomm_tty_tiocmset(struct tty_struct *tty, 125 unsigned int set, unsigned int clear); 126 extern int ircomm_tty_ioctl(struct tty_struct *tty, 127 unsigned int cmd, unsigned long arg); 128 extern void ircomm_tty_set_termios(struct tty_struct *tty, 129 struct ktermios *old_termios); 130 131 #endif 132 133 134 135 136 137 138 139