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1 | /* |
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. |
6 | * |
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) |
14 | */ |
15 | #include <linux/errno.h> |
16 | #include <linux/types.h> |
17 | #include <linux/socket.h> |
18 | #include <linux/in.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> |
26 | #include <net/ax25.h> |
27 | #include <linux/inet.h> |
28 | #include <linux/netdevice.h> |
29 | #include <linux/skbuff.h> |
30 | #include <net/sock.h> |
31 | #include <asm/uaccess.h> |
32 | #include <linux/fcntl.h> |
33 | #include <linux/mm.h> |
34 | #include <linux/interrupt.h> |
35 | |
36 | static void ax25_heartbeat_expiry(unsigned long); |
37 | static void ax25_t1timer_expiry(unsigned long); |
38 | static void ax25_t2timer_expiry(unsigned long); |
39 | static void ax25_t3timer_expiry(unsigned long); |
40 | static void ax25_idletimer_expiry(unsigned long); |
41 | |
42 | void ax25_setup_timers(ax25_cb *ax25) |
43 | { |
44 | setup_timer(&ax25->timer, ax25_heartbeat_expiry, (unsigned long)ax25); |
45 | setup_timer(&ax25->t1timer, ax25_t1timer_expiry, (unsigned long)ax25); |
46 | setup_timer(&ax25->t2timer, ax25_t2timer_expiry, (unsigned long)ax25); |
47 | setup_timer(&ax25->t3timer, ax25_t3timer_expiry, (unsigned long)ax25); |
48 | setup_timer(&ax25->idletimer, ax25_idletimer_expiry, |
49 | (unsigned long)ax25); |
50 | } |
51 | |
52 | void ax25_start_heartbeat(ax25_cb *ax25) |
53 | { |
54 | mod_timer(&ax25->timer, jiffies + 5 * HZ); |
55 | } |
56 | |
57 | void ax25_start_t1timer(ax25_cb *ax25) |
58 | { |
59 | mod_timer(&ax25->t1timer, jiffies + ax25->t1); |
60 | } |
61 | |
62 | void ax25_start_t2timer(ax25_cb *ax25) |
63 | { |
64 | mod_timer(&ax25->t2timer, jiffies + ax25->t2); |
65 | } |
66 | |
67 | void ax25_start_t3timer(ax25_cb *ax25) |
68 | { |
69 | if (ax25->t3 > 0) |
70 | mod_timer(&ax25->t3timer, jiffies + ax25->t3); |
71 | else |
72 | del_timer(&ax25->t3timer); |
73 | } |
74 | |
75 | void ax25_start_idletimer(ax25_cb *ax25) |
76 | { |
77 | if (ax25->idle > 0) |
78 | mod_timer(&ax25->idletimer, jiffies + ax25->idle); |
79 | else |
80 | del_timer(&ax25->idletimer); |
81 | } |
82 | |
83 | void ax25_stop_heartbeat(ax25_cb *ax25) |
84 | { |
85 | del_timer(&ax25->timer); |
86 | } |
87 | |
88 | void ax25_stop_t1timer(ax25_cb *ax25) |
89 | { |
90 | del_timer(&ax25->t1timer); |
91 | } |
92 | |
93 | void ax25_stop_t2timer(ax25_cb *ax25) |
94 | { |
95 | del_timer(&ax25->t2timer); |
96 | } |
97 | |
98 | void ax25_stop_t3timer(ax25_cb *ax25) |
99 | { |
100 | del_timer(&ax25->t3timer); |
101 | } |
102 | |
103 | void ax25_stop_idletimer(ax25_cb *ax25) |
104 | { |
105 | del_timer(&ax25->idletimer); |
106 | } |
107 | |
108 | int ax25_t1timer_running(ax25_cb *ax25) |
109 | { |
110 | return timer_pending(&ax25->t1timer); |
111 | } |
112 | |
113 | unsigned long ax25_display_timer(struct timer_list *timer) |
114 | { |
115 | if (!timer_pending(timer)) |
116 | return 0; |
117 | |
118 | return timer->expires - jiffies; |
119 | } |
120 | |
121 | EXPORT_SYMBOL(ax25_display_timer); |
122 | |
123 | static void ax25_heartbeat_expiry(unsigned long param) |
124 | { |
125 | int proto = AX25_PROTO_STD_SIMPLEX; |
126 | ax25_cb *ax25 = (ax25_cb *)param; |
127 | |
128 | if (ax25->ax25_dev) |
129 | proto = ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]; |
130 | |
131 | switch (proto) { |
132 | case AX25_PROTO_STD_SIMPLEX: |
133 | case AX25_PROTO_STD_DUPLEX: |
134 | ax25_std_heartbeat_expiry(ax25); |
135 | break; |
136 | |
137 | #ifdef CONFIG_AX25_DAMA_SLAVE |
138 | case AX25_PROTO_DAMA_SLAVE: |
139 | if (ax25->ax25_dev->dama.slave) |
140 | ax25_ds_heartbeat_expiry(ax25); |
141 | else |
142 | ax25_std_heartbeat_expiry(ax25); |
143 | break; |
144 | #endif |
145 | } |
146 | } |
147 | |
148 | static void ax25_t1timer_expiry(unsigned long param) |
149 | { |
150 | ax25_cb *ax25 = (ax25_cb *)param; |
151 | |
152 | switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) { |
153 | case AX25_PROTO_STD_SIMPLEX: |
154 | case AX25_PROTO_STD_DUPLEX: |
155 | ax25_std_t1timer_expiry(ax25); |
156 | break; |
157 | |
158 | #ifdef CONFIG_AX25_DAMA_SLAVE |
159 | case AX25_PROTO_DAMA_SLAVE: |
160 | if (!ax25->ax25_dev->dama.slave) |
161 | ax25_std_t1timer_expiry(ax25); |
162 | break; |
163 | #endif |
164 | } |
165 | } |
166 | |
167 | static void ax25_t2timer_expiry(unsigned long param) |
168 | { |
169 | ax25_cb *ax25 = (ax25_cb *)param; |
170 | |
171 | switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) { |
172 | case AX25_PROTO_STD_SIMPLEX: |
173 | case AX25_PROTO_STD_DUPLEX: |
174 | ax25_std_t2timer_expiry(ax25); |
175 | break; |
176 | |
177 | #ifdef CONFIG_AX25_DAMA_SLAVE |
178 | case AX25_PROTO_DAMA_SLAVE: |
179 | if (!ax25->ax25_dev->dama.slave) |
180 | ax25_std_t2timer_expiry(ax25); |
181 | break; |
182 | #endif |
183 | } |
184 | } |
185 | |
186 | static void ax25_t3timer_expiry(unsigned long param) |
187 | { |
188 | ax25_cb *ax25 = (ax25_cb *)param; |
189 | |
190 | switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) { |
191 | case AX25_PROTO_STD_SIMPLEX: |
192 | case AX25_PROTO_STD_DUPLEX: |
193 | ax25_std_t3timer_expiry(ax25); |
194 | break; |
195 | |
196 | #ifdef CONFIG_AX25_DAMA_SLAVE |
197 | case AX25_PROTO_DAMA_SLAVE: |
198 | if (ax25->ax25_dev->dama.slave) |
199 | ax25_ds_t3timer_expiry(ax25); |
200 | else |
201 | ax25_std_t3timer_expiry(ax25); |
202 | break; |
203 | #endif |
204 | } |
205 | } |
206 | |
207 | static void ax25_idletimer_expiry(unsigned long param) |
208 | { |
209 | ax25_cb *ax25 = (ax25_cb *)param; |
210 | |
211 | switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) { |
212 | case AX25_PROTO_STD_SIMPLEX: |
213 | case AX25_PROTO_STD_DUPLEX: |
214 | ax25_std_idletimer_expiry(ax25); |
215 | break; |
216 | |
217 | #ifdef CONFIG_AX25_DAMA_SLAVE |
218 | case AX25_PROTO_DAMA_SLAVE: |
219 | if (ax25->ax25_dev->dama.slave) |
220 | ax25_ds_idletimer_expiry(ax25); |
221 | else |
222 | ax25_std_idletimer_expiry(ax25); |
223 | break; |
224 | #endif |
225 | } |
226 | } |
227 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
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