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 <linux/uaccess.h>
32 #include <linux/fcntl.h>
34 #include <linux/interrupt.h>
36 static void ax25_heartbeat_expiry(struct timer_list *);
37 static void ax25_t1timer_expiry(struct timer_list *);
38 static void ax25_t2timer_expiry(struct timer_list *);
39 static void ax25_t3timer_expiry(struct timer_list *);
40 static void ax25_idletimer_expiry(struct timer_list *);
42 void ax25_setup_timers(ax25_cb *ax25)
44 timer_setup(&ax25->timer, ax25_heartbeat_expiry, 0);
45 timer_setup(&ax25->t1timer, ax25_t1timer_expiry, 0);
46 timer_setup(&ax25->t2timer, ax25_t2timer_expiry, 0);
47 timer_setup(&ax25->t3timer, ax25_t3timer_expiry, 0);
48 timer_setup(&ax25->idletimer, ax25_idletimer_expiry, 0);
51 void ax25_start_heartbeat(ax25_cb *ax25)
53 mod_timer(&ax25->timer, jiffies + 5 * HZ);
56 void ax25_start_t1timer(ax25_cb *ax25)
58 mod_timer(&ax25->t1timer, jiffies + ax25->t1);
61 void ax25_start_t2timer(ax25_cb *ax25)
63 mod_timer(&ax25->t2timer, jiffies + ax25->t2);
66 void ax25_start_t3timer(ax25_cb *ax25)
69 mod_timer(&ax25->t3timer, jiffies + ax25->t3);
71 del_timer(&ax25->t3timer);
74 void ax25_start_idletimer(ax25_cb *ax25)
77 mod_timer(&ax25->idletimer, jiffies + ax25->idle);
79 del_timer(&ax25->idletimer);
82 void ax25_stop_heartbeat(ax25_cb *ax25)
84 del_timer(&ax25->timer);
87 void ax25_stop_t1timer(ax25_cb *ax25)
89 del_timer(&ax25->t1timer);
92 void ax25_stop_t2timer(ax25_cb *ax25)
94 del_timer(&ax25->t2timer);
97 void ax25_stop_t3timer(ax25_cb *ax25)
99 del_timer(&ax25->t3timer);
102 void ax25_stop_idletimer(ax25_cb *ax25)
104 del_timer(&ax25->idletimer);
107 int ax25_t1timer_running(ax25_cb *ax25)
109 return timer_pending(&ax25->t1timer);
112 unsigned long ax25_display_timer(struct timer_list *timer)
114 if (!timer_pending(timer))
117 return timer->expires - jiffies;
120 EXPORT_SYMBOL(ax25_display_timer);
122 static void ax25_heartbeat_expiry(struct timer_list *t)
124 int proto = AX25_PROTO_STD_SIMPLEX;
125 ax25_cb *ax25 = from_timer(ax25, t, timer);
128 proto = ax25->ax25_dev->values[AX25_VALUES_PROTOCOL];
131 case AX25_PROTO_STD_SIMPLEX:
132 case AX25_PROTO_STD_DUPLEX:
133 ax25_std_heartbeat_expiry(ax25);
136 #ifdef CONFIG_AX25_DAMA_SLAVE
137 case AX25_PROTO_DAMA_SLAVE:
138 if (ax25->ax25_dev->dama.slave)
139 ax25_ds_heartbeat_expiry(ax25);
141 ax25_std_heartbeat_expiry(ax25);
147 static void ax25_t1timer_expiry(struct timer_list *t)
149 ax25_cb *ax25 = from_timer(ax25, t, t1timer);
151 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
152 case AX25_PROTO_STD_SIMPLEX:
153 case AX25_PROTO_STD_DUPLEX:
154 ax25_std_t1timer_expiry(ax25);
157 #ifdef CONFIG_AX25_DAMA_SLAVE
158 case AX25_PROTO_DAMA_SLAVE:
159 if (!ax25->ax25_dev->dama.slave)
160 ax25_std_t1timer_expiry(ax25);
166 static void ax25_t2timer_expiry(struct timer_list *t)
168 ax25_cb *ax25 = from_timer(ax25, t, t2timer);
170 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
171 case AX25_PROTO_STD_SIMPLEX:
172 case AX25_PROTO_STD_DUPLEX:
173 ax25_std_t2timer_expiry(ax25);
176 #ifdef CONFIG_AX25_DAMA_SLAVE
177 case AX25_PROTO_DAMA_SLAVE:
178 if (!ax25->ax25_dev->dama.slave)
179 ax25_std_t2timer_expiry(ax25);
185 static void ax25_t3timer_expiry(struct timer_list *t)
187 ax25_cb *ax25 = from_timer(ax25, t, t3timer);
189 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
190 case AX25_PROTO_STD_SIMPLEX:
191 case AX25_PROTO_STD_DUPLEX:
192 ax25_std_t3timer_expiry(ax25);
195 #ifdef CONFIG_AX25_DAMA_SLAVE
196 case AX25_PROTO_DAMA_SLAVE:
197 if (ax25->ax25_dev->dama.slave)
198 ax25_ds_t3timer_expiry(ax25);
200 ax25_std_t3timer_expiry(ax25);
206 static void ax25_idletimer_expiry(struct timer_list *t)
208 ax25_cb *ax25 = from_timer(ax25, t, idletimer);
210 switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
211 case AX25_PROTO_STD_SIMPLEX:
212 case AX25_PROTO_STD_DUPLEX:
213 ax25_std_idletimer_expiry(ax25);
216 #ifdef CONFIG_AX25_DAMA_SLAVE
217 case AX25_PROTO_DAMA_SLAVE:
218 if (ax25->ax25_dev->dama.slave)
219 ax25_ds_idletimer_expiry(ax25);
221 ax25_std_idletimer_expiry(ax25);