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/config.h>
16 #include <linux/errno.h>
17 #include <linux/types.h>
18 #include <linux/socket.h>
20 #include <linux/kernel.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_start_heartbeat(ax25_cb
*ax25
)
45 del_timer(&ax25
->timer
);
47 ax25
->timer
.data
= (unsigned long)ax25
;
48 ax25
->timer
.function
= &ax25_heartbeat_expiry
;
49 ax25
->timer
.expires
= jiffies
+ 5 * HZ
;
51 add_timer(&ax25
->timer
);
54 void ax25_start_t1timer(ax25_cb
*ax25
)
56 del_timer(&ax25
->t1timer
);
58 ax25
->t1timer
.data
= (unsigned long)ax25
;
59 ax25
->t1timer
.function
= &ax25_t1timer_expiry
;
60 ax25
->t1timer
.expires
= jiffies
+ ax25
->t1
;
62 add_timer(&ax25
->t1timer
);
65 void ax25_start_t2timer(ax25_cb
*ax25
)
67 del_timer(&ax25
->t2timer
);
69 ax25
->t2timer
.data
= (unsigned long)ax25
;
70 ax25
->t2timer
.function
= &ax25_t2timer_expiry
;
71 ax25
->t2timer
.expires
= jiffies
+ ax25
->t2
;
73 add_timer(&ax25
->t2timer
);
76 void ax25_start_t3timer(ax25_cb
*ax25
)
78 del_timer(&ax25
->t3timer
);
81 ax25
->t3timer
.data
= (unsigned long)ax25
;
82 ax25
->t3timer
.function
= &ax25_t3timer_expiry
;
83 ax25
->t3timer
.expires
= jiffies
+ ax25
->t3
;
85 add_timer(&ax25
->t3timer
);
89 void ax25_start_idletimer(ax25_cb
*ax25
)
91 del_timer(&ax25
->idletimer
);
94 ax25
->idletimer
.data
= (unsigned long)ax25
;
95 ax25
->idletimer
.function
= &ax25_idletimer_expiry
;
96 ax25
->idletimer
.expires
= jiffies
+ ax25
->idle
;
98 add_timer(&ax25
->idletimer
);
102 void ax25_stop_heartbeat(ax25_cb
*ax25
)
104 del_timer(&ax25
->timer
);
107 void ax25_stop_t1timer(ax25_cb
*ax25
)
109 del_timer(&ax25
->t1timer
);
112 void ax25_stop_t2timer(ax25_cb
*ax25
)
114 del_timer(&ax25
->t2timer
);
117 void ax25_stop_t3timer(ax25_cb
*ax25
)
119 del_timer(&ax25
->t3timer
);
122 void ax25_stop_idletimer(ax25_cb
*ax25
)
124 del_timer(&ax25
->idletimer
);
127 int ax25_t1timer_running(ax25_cb
*ax25
)
129 return timer_pending(&ax25
->t1timer
);
132 unsigned long ax25_display_timer(struct timer_list
*timer
)
134 if (!timer_pending(timer
))
137 return timer
->expires
- jiffies
;
140 static void ax25_heartbeat_expiry(unsigned long param
)
142 int proto
= AX25_PROTO_STD_SIMPLEX
;
143 ax25_cb
*ax25
= (ax25_cb
*)param
;
146 proto
= ax25
->ax25_dev
->values
[AX25_VALUES_PROTOCOL
];
149 case AX25_PROTO_STD_SIMPLEX
:
150 case AX25_PROTO_STD_DUPLEX
:
151 ax25_std_heartbeat_expiry(ax25
);
154 #ifdef CONFIG_AX25_DAMA_SLAVE
155 case AX25_PROTO_DAMA_SLAVE
:
156 if (ax25
->ax25_dev
->dama
.slave
)
157 ax25_ds_heartbeat_expiry(ax25
);
159 ax25_std_heartbeat_expiry(ax25
);
165 static void ax25_t1timer_expiry(unsigned long param
)
167 ax25_cb
*ax25
= (ax25_cb
*)param
;
169 switch (ax25
->ax25_dev
->values
[AX25_VALUES_PROTOCOL
]) {
170 case AX25_PROTO_STD_SIMPLEX
:
171 case AX25_PROTO_STD_DUPLEX
:
172 ax25_std_t1timer_expiry(ax25
);
175 #ifdef CONFIG_AX25_DAMA_SLAVE
176 case AX25_PROTO_DAMA_SLAVE
:
177 if (!ax25
->ax25_dev
->dama
.slave
)
178 ax25_std_t1timer_expiry(ax25
);
184 static void ax25_t2timer_expiry(unsigned long param
)
186 ax25_cb
*ax25
= (ax25_cb
*)param
;
188 switch (ax25
->ax25_dev
->values
[AX25_VALUES_PROTOCOL
]) {
189 case AX25_PROTO_STD_SIMPLEX
:
190 case AX25_PROTO_STD_DUPLEX
:
191 ax25_std_t2timer_expiry(ax25
);
194 #ifdef CONFIG_AX25_DAMA_SLAVE
195 case AX25_PROTO_DAMA_SLAVE
:
196 if (!ax25
->ax25_dev
->dama
.slave
)
197 ax25_std_t2timer_expiry(ax25
);
203 static void ax25_t3timer_expiry(unsigned long param
)
205 ax25_cb
*ax25
= (ax25_cb
*)param
;
207 switch (ax25
->ax25_dev
->values
[AX25_VALUES_PROTOCOL
]) {
208 case AX25_PROTO_STD_SIMPLEX
:
209 case AX25_PROTO_STD_DUPLEX
:
210 ax25_std_t3timer_expiry(ax25
);
213 #ifdef CONFIG_AX25_DAMA_SLAVE
214 case AX25_PROTO_DAMA_SLAVE
:
215 if (ax25
->ax25_dev
->dama
.slave
)
216 ax25_ds_t3timer_expiry(ax25
);
218 ax25_std_t3timer_expiry(ax25
);
224 static void ax25_idletimer_expiry(unsigned long param
)
226 ax25_cb
*ax25
= (ax25_cb
*)param
;
228 switch (ax25
->ax25_dev
->values
[AX25_VALUES_PROTOCOL
]) {
229 case AX25_PROTO_STD_SIMPLEX
:
230 case AX25_PROTO_STD_DUPLEX
:
231 ax25_std_idletimer_expiry(ax25
);
234 #ifdef CONFIG_AX25_DAMA_SLAVE
235 case AX25_PROTO_DAMA_SLAVE
:
236 if (ax25
->ax25_dev
->dama
.slave
)
237 ax25_ds_idletimer_expiry(ax25
);
239 ax25_std_idletimer_expiry(ax25
);
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