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
);
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