2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or
5 * (at your option) any later version.
7 * Copyright (C) Alan Cox GW4PTS (alan@lxorguk.ukuu.org.uk)
8 * Copyright (C) Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
9 * Copyright (C) Tomi Manninen OH2BNS (oh2bns@sral.fi)
10 * Copyright (C) Darryl Miles G7LED (dlm@g7led.demon.co.uk)
11 * Copyright (C) Joerg Reuter DL1BKE (jreuter@yaina.de)
12 * Copyright (C) Frederic Rible F1OAT (frible@teaser.fr)
13 * Copyright (C) 2002 Ralf Baechle DO1GRB (ralf@gnu.org)
15 #include <linux/errno.h>
16 #include <linux/types.h>
17 #include <linux/socket.h>
19 #include <linux/kernel.h>
20 #include <linux/module.h>
21 #include <linux/jiffies.h>
22 #include <linux/timer.h>
23 #include <linux/string.h>
24 #include <linux/sockios.h>
25 #include <linux/net.h>
27 #include <linux/inet.h>
28 #include <linux/netdevice.h>
29 #include <linux/skbuff.h>
31 #include <asm/uaccess.h>
32 #include <asm/system.h>
33 #include <linux/fcntl.h>
35 #include <linux/interrupt.h>
37 static void ax25_heartbeat_expiry(unsigned long);
38 static void ax25_t1timer_expiry(unsigned long);
39 static void ax25_t2timer_expiry(unsigned long);
40 static void ax25_t3timer_expiry(unsigned long);
41 static void ax25_idletimer_expiry(unsigned long);
43 void ax25_setup_timers(ax25_cb *ax25)
45 setup_timer(&ax25->timer, ax25_heartbeat_expiry, (unsigned long)ax25);
46 setup_timer(&ax25->t1timer, ax25_t1timer_expiry, (unsigned long)ax25);
47 setup_timer(&ax25->t2timer, ax25_t2timer_expiry, (unsigned long)ax25);
48 setup_timer(&ax25->t3timer, ax25_t3timer_expiry, (unsigned long)ax25);
49 setup_timer(&ax25->idletimer, ax25_idletimer_expiry,
53 void ax25_start_heartbeat(ax25_cb *ax25)
55 mod_timer(&ax25->timer, jiffies + 5 * HZ);
58 void ax25_start_t1timer(ax25_cb *ax25)
60 mod_timer(&ax25->t1timer, jiffies + ax25->t1);
63 void ax25_start_t2timer(ax25_cb *ax25)
65 mod_timer(&ax25->t2timer, jiffies + ax25->t2);
68 void ax25_start_t3timer(ax25_cb *ax25)
71 mod_timer(&ax25->t3timer, jiffies + ax25->t3);
73 del_timer(&ax25->t3timer);
76 void ax25_start_idletimer(ax25_cb *ax25)
79 mod_timer(&ax25->idletimer, jiffies + ax25->idle);
81 del_timer(&ax25->idletimer);
84 void ax25_stop_heartbeat(ax25_cb *ax25)
86 del_timer(&ax25->timer);
89 void ax25_stop_t1timer(ax25_cb *ax25)
91 del_timer(&ax25->t1timer);
94 void ax25_stop_t2timer(ax25_cb *ax25)
96 del_timer(&ax25->t2timer);
99 void ax25_stop_t3timer(ax25_cb *ax25)
101 del_timer(&ax25->t3timer);
104 void ax25_stop_idletimer(ax25_cb *ax25)
106 del_timer(&ax25->idletimer);
109 int ax25_t1timer_running(ax25_cb *ax25)
111 return timer_pending(&ax25->t1timer);
114 unsigned long ax25_display_timer(struct timer_list *timer)
116 if (!timer_pending(timer))
119 return timer->expires - jiffies;
122 EXPORT_SYMBOL(ax25_display_timer);
124 static void ax25_heartbeat_expiry(unsigned long param)
126 int proto = AX25_PROTO_STD_SIMPLEX;
127 ax25_cb *ax25 = (ax25_cb *)param;
130 proto = ax25->ax25_dev->values[AX25_VALUES_PROTOCOL];
133 case AX25_PROTO_STD_SIMPLEX:
134 case AX25_PROTO_STD_DUPLEX:
135 ax25_std_heartbeat_expiry(ax25);
138 #ifdef CONFIG_AX25_DAMA_SLAVE
139 case AX25_PROTO_DAMA_SLAVE:
140 if (ax25->ax25_dev->dama.slave)
141 ax25_ds_heartbeat_expiry(ax25);
143 ax25_std_heartbeat_expiry(ax25);
149 static void ax25_t1timer_expiry(unsigned long param)
151 ax25_cb *ax25 = (ax25_cb *)param;
153 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
154 case AX25_PROTO_STD_SIMPLEX:
155 case AX25_PROTO_STD_DUPLEX:
156 ax25_std_t1timer_expiry(ax25);
159 #ifdef CONFIG_AX25_DAMA_SLAVE
160 case AX25_PROTO_DAMA_SLAVE:
161 if (!ax25->ax25_dev->dama.slave)
162 ax25_std_t1timer_expiry(ax25);
168 static void ax25_t2timer_expiry(unsigned long param)
170 ax25_cb *ax25 = (ax25_cb *)param;
172 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
173 case AX25_PROTO_STD_SIMPLEX:
174 case AX25_PROTO_STD_DUPLEX:
175 ax25_std_t2timer_expiry(ax25);
178 #ifdef CONFIG_AX25_DAMA_SLAVE
179 case AX25_PROTO_DAMA_SLAVE:
180 if (!ax25->ax25_dev->dama.slave)
181 ax25_std_t2timer_expiry(ax25);
187 static void ax25_t3timer_expiry(unsigned long param)
189 ax25_cb *ax25 = (ax25_cb *)param;
191 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
192 case AX25_PROTO_STD_SIMPLEX:
193 case AX25_PROTO_STD_DUPLEX:
194 ax25_std_t3timer_expiry(ax25);
197 #ifdef CONFIG_AX25_DAMA_SLAVE
198 case AX25_PROTO_DAMA_SLAVE:
199 if (ax25->ax25_dev->dama.slave)
200 ax25_ds_t3timer_expiry(ax25);
202 ax25_std_t3timer_expiry(ax25);
208 static void ax25_idletimer_expiry(unsigned long param)
210 ax25_cb *ax25 = (ax25_cb *)param;
212 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
213 case AX25_PROTO_STD_SIMPLEX:
214 case AX25_PROTO_STD_DUPLEX:
215 ax25_std_idletimer_expiry(ax25);
218 #ifdef CONFIG_AX25_DAMA_SLAVE
219 case AX25_PROTO_DAMA_SLAVE:
220 if (ax25->ax25_dev->dama.slave)
221 ax25_ds_idletimer_expiry(ax25);
223 ax25_std_idletimer_expiry(ax25);