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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 <asm/system.h> |
33 | #include <linux/fcntl.h> |
34 | #include <linux/mm.h> |
35 | #include <linux/interrupt.h> |
36 | |
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); |
42 | |
43 | void ax25_setup_timers(ax25_cb *ax25) |
44 | { |
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, |
50 | (unsigned long)ax25); |
51 | } |
52 | |
53 | void ax25_start_heartbeat(ax25_cb *ax25) |
54 | { |
55 | mod_timer(&ax25->timer, jiffies + 5 * HZ); |
56 | } |
57 | |
58 | void ax25_start_t1timer(ax25_cb *ax25) |
59 | { |
60 | mod_timer(&ax25->t1timer, jiffies + ax25->t1); |
61 | } |
62 | |
63 | void ax25_start_t2timer(ax25_cb *ax25) |
64 | { |
65 | mod_timer(&ax25->t2timer, jiffies + ax25->t2); |
66 | } |
67 | |
68 | void ax25_start_t3timer(ax25_cb *ax25) |
69 | { |
70 | if (ax25->t3 > 0) |
71 | mod_timer(&ax25->t3timer, jiffies + ax25->t3); |
72 | else |
73 | del_timer(&ax25->t3timer); |
74 | } |
75 | |
76 | void ax25_start_idletimer(ax25_cb *ax25) |
77 | { |
78 | if (ax25->idle > 0) |
79 | mod_timer(&ax25->idletimer, jiffies + ax25->idle); |
80 | else |
81 | del_timer(&ax25->idletimer); |
82 | } |
83 | |
84 | void ax25_stop_heartbeat(ax25_cb *ax25) |
85 | { |
86 | del_timer(&ax25->timer); |
87 | } |
88 | |
89 | void ax25_stop_t1timer(ax25_cb *ax25) |
90 | { |
91 | del_timer(&ax25->t1timer); |
92 | } |
93 | |
94 | void ax25_stop_t2timer(ax25_cb *ax25) |
95 | { |
96 | del_timer(&ax25->t2timer); |
97 | } |
98 | |
99 | void ax25_stop_t3timer(ax25_cb *ax25) |
100 | { |
101 | del_timer(&ax25->t3timer); |
102 | } |
103 | |
104 | void ax25_stop_idletimer(ax25_cb *ax25) |
105 | { |
106 | del_timer(&ax25->idletimer); |
107 | } |
108 | |
109 | int ax25_t1timer_running(ax25_cb *ax25) |
110 | { |
111 | return timer_pending(&ax25->t1timer); |
112 | } |
113 | |
114 | unsigned long ax25_display_timer(struct timer_list *timer) |
115 | { |
116 | if (!timer_pending(timer)) |
117 | return 0; |
118 | |
119 | return timer->expires - jiffies; |
120 | } |
121 | |
122 | EXPORT_SYMBOL(ax25_display_timer); |
123 | |
124 | static void ax25_heartbeat_expiry(unsigned long param) |
125 | { |
126 | int proto = AX25_PROTO_STD_SIMPLEX; |
127 | ax25_cb *ax25 = (ax25_cb *)param; |
128 | |
129 | if (ax25->ax25_dev) |
130 | proto = ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]; |
131 | |
132 | switch (proto) { |
133 | case AX25_PROTO_STD_SIMPLEX: |
134 | case AX25_PROTO_STD_DUPLEX: |
135 | ax25_std_heartbeat_expiry(ax25); |
136 | break; |
137 | |
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); |
142 | else |
143 | ax25_std_heartbeat_expiry(ax25); |
144 | break; |
145 | #endif |
146 | } |
147 | } |
148 | |
149 | static void ax25_t1timer_expiry(unsigned long param) |
150 | { |
151 | ax25_cb *ax25 = (ax25_cb *)param; |
152 | |
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); |
157 | break; |
158 | |
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); |
163 | break; |
164 | #endif |
165 | } |
166 | } |
167 | |
168 | static void ax25_t2timer_expiry(unsigned long param) |
169 | { |
170 | ax25_cb *ax25 = (ax25_cb *)param; |
171 | |
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); |
176 | break; |
177 | |
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); |
182 | break; |
183 | #endif |
184 | } |
185 | } |
186 | |
187 | static void ax25_t3timer_expiry(unsigned long param) |
188 | { |
189 | ax25_cb *ax25 = (ax25_cb *)param; |
190 | |
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); |
195 | break; |
196 | |
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); |
201 | else |
202 | ax25_std_t3timer_expiry(ax25); |
203 | break; |
204 | #endif |
205 | } |
206 | } |
207 | |
208 | static void ax25_idletimer_expiry(unsigned long param) |
209 | { |
210 | ax25_cb *ax25 = (ax25_cb *)param; |
211 | |
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); |
216 | break; |
217 | |
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); |
222 | else |
223 | ax25_std_idletimer_expiry(ax25); |
224 | break; |
225 | #endif |
226 | } |
227 | } |
228 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
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