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1da177e4 | 1 | /********************************************************************* |
6819bc2e | 2 | * |
1da177e4 LT |
3 | * Filename: irsysctl.c |
4 | * Version: 1.0 | |
5 | * Description: Sysctl interface for IrDA | |
6 | * Status: Experimental. | |
7 | * Author: Dag Brattli <dagb@cs.uit.no> | |
8 | * Created at: Sun May 24 22:12:06 1998 | |
9 | * Modified at: Fri Jun 4 02:50:15 1999 | |
10 | * Modified by: Dag Brattli <dagb@cs.uit.no> | |
6819bc2e | 11 | * |
1da177e4 LT |
12 | * Copyright (c) 1997, 1999 Dag Brattli, All Rights Reserved. |
13 | * Copyright (c) 2000-2001 Jean Tourrilhes <jt@hpl.hp.com> | |
6819bc2e YH |
14 | * |
15 | * This program is free software; you can redistribute it and/or | |
16 | * modify it under the terms of the GNU General Public License as | |
17 | * published by the Free Software Foundation; either version 2 of | |
1da177e4 | 18 | * the License, or (at your option) any later version. |
6819bc2e | 19 | * |
96de0e25 | 20 | * Neither Dag Brattli nor University of Tromsø admit liability nor |
6819bc2e | 21 | * provide warranty for any of this software. This material is |
1da177e4 | 22 | * provided "AS-IS" and at no charge. |
6819bc2e | 23 | * |
1da177e4 LT |
24 | ********************************************************************/ |
25 | ||
1da177e4 LT |
26 | #include <linux/mm.h> |
27 | #include <linux/ctype.h> | |
28 | #include <linux/sysctl.h> | |
29 | #include <linux/init.h> | |
30 | ||
31 | #include <net/irda/irda.h> /* irda_debug */ | |
91cde6f7 RB |
32 | #include <net/irda/irlmp.h> |
33 | #include <net/irda/timer.h> | |
1da177e4 LT |
34 | #include <net/irda/irias_object.h> |
35 | ||
1da177e4 LT |
36 | extern int sysctl_discovery; |
37 | extern int sysctl_discovery_slots; | |
38 | extern int sysctl_discovery_timeout; | |
39 | extern int sysctl_slot_timeout; | |
40 | extern int sysctl_fast_poll_increase; | |
41 | extern char sysctl_devname[]; | |
42 | extern int sysctl_max_baud_rate; | |
43 | extern int sysctl_min_tx_turn_time; | |
44 | extern int sysctl_max_tx_data_size; | |
45 | extern int sysctl_max_tx_window; | |
46 | extern int sysctl_max_noreply_time; | |
47 | extern int sysctl_warn_noreply_time; | |
48 | extern int sysctl_lap_keepalive_time; | |
49 | ||
91cde6f7 RB |
50 | extern struct irlmp_cb *irlmp; |
51 | ||
1da177e4 LT |
52 | /* this is needed for the proc_dointvec_minmax - Jean II */ |
53 | static int max_discovery_slots = 16; /* ??? */ | |
54 | static int min_discovery_slots = 1; | |
55 | /* IrLAP 6.13.2 says 25ms to 10+70ms - allow higher since some devices | |
56 | * seems to require it. (from Dag's comment) */ | |
57 | static int max_slot_timeout = 160; | |
58 | static int min_slot_timeout = 20; | |
59 | static int max_max_baud_rate = 16000000; /* See qos.c - IrLAP spec */ | |
60 | static int min_max_baud_rate = 2400; | |
61 | static int max_min_tx_turn_time = 10000; /* See qos.c - IrLAP spec */ | |
62 | static int min_min_tx_turn_time; | |
63 | static int max_max_tx_data_size = 2048; /* See qos.c - IrLAP spec */ | |
64 | static int min_max_tx_data_size = 64; | |
65 | static int max_max_tx_window = 7; /* See qos.c - IrLAP spec */ | |
66 | static int min_max_tx_window = 1; | |
67 | static int max_max_noreply_time = 40; /* See qos.c - IrLAP spec */ | |
68 | static int min_max_noreply_time = 3; | |
69 | static int max_warn_noreply_time = 3; /* 3s == standard */ | |
70 | static int min_warn_noreply_time = 1; /* 1s == min WD_TIMER */ | |
71 | static int max_lap_keepalive_time = 10000; /* 10s */ | |
72 | static int min_lap_keepalive_time = 100; /* 100us */ | |
73 | /* For other sysctl, I've no idea of the range. Maybe Dag could help | |
74 | * us on that - Jean II */ | |
75 | ||
76 | static int do_devname(ctl_table *table, int write, struct file *filp, | |
77 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
78 | { | |
79 | int ret; | |
80 | ||
81 | ret = proc_dostring(table, write, filp, buffer, lenp, ppos); | |
82 | if (ret == 0 && write) { | |
83 | struct ias_value *val; | |
84 | ||
85 | val = irias_new_string_value(sysctl_devname); | |
86 | if (val) | |
87 | irias_object_change_attribute("Device", "DeviceName", val); | |
88 | } | |
89 | return ret; | |
90 | } | |
91 | ||
91cde6f7 RB |
92 | |
93 | static int do_discovery(ctl_table *table, int write, struct file *filp, | |
94 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
95 | { | |
96 | int ret; | |
97 | ||
98 | ret = proc_dointvec(table, write, filp, buffer, lenp, ppos); | |
99 | if (ret) | |
100 | return ret; | |
101 | ||
102 | if (irlmp == NULL) | |
103 | return -ENODEV; | |
104 | ||
105 | if (sysctl_discovery) | |
106 | irlmp_start_discovery_timer(irlmp, sysctl_discovery_timeout*HZ); | |
107 | else | |
108 | del_timer_sync(&irlmp->discovery_timer); | |
109 | ||
110 | return ret; | |
111 | } | |
112 | ||
1da177e4 LT |
113 | /* One file */ |
114 | static ctl_table irda_table[] = { | |
115 | { | |
f429cd37 | 116 | .ctl_name = NET_IRDA_DISCOVERY, |
1da177e4 LT |
117 | .procname = "discovery", |
118 | .data = &sysctl_discovery, | |
119 | .maxlen = sizeof(int), | |
120 | .mode = 0644, | |
91cde6f7 RB |
121 | .proc_handler = &do_discovery, |
122 | .strategy = &sysctl_intvec | |
1da177e4 LT |
123 | }, |
124 | { | |
f429cd37 | 125 | .ctl_name = NET_IRDA_DEVNAME, |
1da177e4 LT |
126 | .procname = "devname", |
127 | .data = sysctl_devname, | |
128 | .maxlen = 65, | |
129 | .mode = 0644, | |
130 | .proc_handler = &do_devname, | |
131 | .strategy = &sysctl_string | |
132 | }, | |
133 | #ifdef CONFIG_IRDA_DEBUG | |
6819bc2e | 134 | { |
f429cd37 | 135 | .ctl_name = NET_IRDA_DEBUG, |
1da177e4 LT |
136 | .procname = "debug", |
137 | .data = &irda_debug, | |
138 | .maxlen = sizeof(int), | |
139 | .mode = 0644, | |
140 | .proc_handler = &proc_dointvec | |
141 | }, | |
142 | #endif | |
143 | #ifdef CONFIG_IRDA_FAST_RR | |
6819bc2e | 144 | { |
f429cd37 | 145 | .ctl_name = NET_IRDA_FAST_POLL, |
1da177e4 LT |
146 | .procname = "fast_poll_increase", |
147 | .data = &sysctl_fast_poll_increase, | |
148 | .maxlen = sizeof(int), | |
149 | .mode = 0644, | |
150 | .proc_handler = &proc_dointvec | |
151 | }, | |
152 | #endif | |
153 | { | |
f429cd37 | 154 | .ctl_name = NET_IRDA_DISCOVERY_SLOTS, |
1da177e4 LT |
155 | .procname = "discovery_slots", |
156 | .data = &sysctl_discovery_slots, | |
157 | .maxlen = sizeof(int), | |
158 | .mode = 0644, | |
159 | .proc_handler = &proc_dointvec_minmax, | |
160 | .strategy = &sysctl_intvec, | |
161 | .extra1 = &min_discovery_slots, | |
162 | .extra2 = &max_discovery_slots | |
163 | }, | |
164 | { | |
f429cd37 | 165 | .ctl_name = NET_IRDA_DISCOVERY_TIMEOUT, |
1da177e4 LT |
166 | .procname = "discovery_timeout", |
167 | .data = &sysctl_discovery_timeout, | |
168 | .maxlen = sizeof(int), | |
169 | .mode = 0644, | |
170 | .proc_handler = &proc_dointvec | |
171 | }, | |
172 | { | |
f429cd37 | 173 | .ctl_name = NET_IRDA_SLOT_TIMEOUT, |
1da177e4 LT |
174 | .procname = "slot_timeout", |
175 | .data = &sysctl_slot_timeout, | |
176 | .maxlen = sizeof(int), | |
177 | .mode = 0644, | |
178 | .proc_handler = &proc_dointvec_minmax, | |
179 | .strategy = &sysctl_intvec, | |
180 | .extra1 = &min_slot_timeout, | |
181 | .extra2 = &max_slot_timeout | |
182 | }, | |
183 | { | |
f429cd37 | 184 | .ctl_name = NET_IRDA_MAX_BAUD_RATE, |
1da177e4 LT |
185 | .procname = "max_baud_rate", |
186 | .data = &sysctl_max_baud_rate, | |
187 | .maxlen = sizeof(int), | |
188 | .mode = 0644, | |
189 | .proc_handler = &proc_dointvec_minmax, | |
190 | .strategy = &sysctl_intvec, | |
191 | .extra1 = &min_max_baud_rate, | |
192 | .extra2 = &max_max_baud_rate | |
193 | }, | |
194 | { | |
f429cd37 | 195 | .ctl_name = NET_IRDA_MIN_TX_TURN_TIME, |
1da177e4 LT |
196 | .procname = "min_tx_turn_time", |
197 | .data = &sysctl_min_tx_turn_time, | |
198 | .maxlen = sizeof(int), | |
199 | .mode = 0644, | |
200 | .proc_handler = &proc_dointvec_minmax, | |
201 | .strategy = &sysctl_intvec, | |
202 | .extra1 = &min_min_tx_turn_time, | |
203 | .extra2 = &max_min_tx_turn_time | |
204 | }, | |
205 | { | |
f429cd37 | 206 | .ctl_name = NET_IRDA_MAX_TX_DATA_SIZE, |
1da177e4 LT |
207 | .procname = "max_tx_data_size", |
208 | .data = &sysctl_max_tx_data_size, | |
209 | .maxlen = sizeof(int), | |
210 | .mode = 0644, | |
211 | .proc_handler = &proc_dointvec_minmax, | |
212 | .strategy = &sysctl_intvec, | |
213 | .extra1 = &min_max_tx_data_size, | |
214 | .extra2 = &max_max_tx_data_size | |
215 | }, | |
216 | { | |
f429cd37 | 217 | .ctl_name = NET_IRDA_MAX_TX_WINDOW, |
1da177e4 LT |
218 | .procname = "max_tx_window", |
219 | .data = &sysctl_max_tx_window, | |
220 | .maxlen = sizeof(int), | |
221 | .mode = 0644, | |
222 | .proc_handler = &proc_dointvec_minmax, | |
223 | .strategy = &sysctl_intvec, | |
224 | .extra1 = &min_max_tx_window, | |
225 | .extra2 = &max_max_tx_window | |
226 | }, | |
227 | { | |
f429cd37 | 228 | .ctl_name = NET_IRDA_MAX_NOREPLY_TIME, |
1da177e4 LT |
229 | .procname = "max_noreply_time", |
230 | .data = &sysctl_max_noreply_time, | |
231 | .maxlen = sizeof(int), | |
232 | .mode = 0644, | |
233 | .proc_handler = &proc_dointvec_minmax, | |
234 | .strategy = &sysctl_intvec, | |
235 | .extra1 = &min_max_noreply_time, | |
236 | .extra2 = &max_max_noreply_time | |
237 | }, | |
238 | { | |
f429cd37 | 239 | .ctl_name = NET_IRDA_WARN_NOREPLY_TIME, |
1da177e4 LT |
240 | .procname = "warn_noreply_time", |
241 | .data = &sysctl_warn_noreply_time, | |
242 | .maxlen = sizeof(int), | |
243 | .mode = 0644, | |
244 | .proc_handler = &proc_dointvec_minmax, | |
245 | .strategy = &sysctl_intvec, | |
246 | .extra1 = &min_warn_noreply_time, | |
247 | .extra2 = &max_warn_noreply_time | |
248 | }, | |
249 | { | |
f429cd37 | 250 | .ctl_name = NET_IRDA_LAP_KEEPALIVE_TIME, |
1da177e4 LT |
251 | .procname = "lap_keepalive_time", |
252 | .data = &sysctl_lap_keepalive_time, | |
253 | .maxlen = sizeof(int), | |
254 | .mode = 0644, | |
255 | .proc_handler = &proc_dointvec_minmax, | |
256 | .strategy = &sysctl_intvec, | |
257 | .extra1 = &min_lap_keepalive_time, | |
258 | .extra2 = &max_lap_keepalive_time | |
259 | }, | |
260 | { .ctl_name = 0 } | |
261 | }; | |
262 | ||
b5ccd792 PE |
263 | static struct ctl_path irda_path[] = { |
264 | { .procname = "net", .ctl_name = CTL_NET, }, | |
265 | { .procname = "irda", .ctl_name = NET_IRDA, }, | |
266 | { } | |
1da177e4 LT |
267 | }; |
268 | ||
269 | static struct ctl_table_header *irda_table_header; | |
270 | ||
271 | /* | |
272 | * Function irda_sysctl_register (void) | |
273 | * | |
274 | * Register our sysctl interface | |
275 | * | |
276 | */ | |
277 | int __init irda_sysctl_register(void) | |
278 | { | |
b5ccd792 | 279 | irda_table_header = register_sysctl_paths(irda_path, irda_table); |
1da177e4 LT |
280 | if (!irda_table_header) |
281 | return -ENOMEM; | |
282 | ||
283 | return 0; | |
284 | } | |
285 | ||
286 | /* | |
287 | * Function irda_sysctl_unregister (void) | |
288 | * | |
289 | * Unregister our sysctl interface | |
290 | * | |
291 | */ | |
75a69ac6 | 292 | void irda_sysctl_unregister(void) |
1da177e4 LT |
293 | { |
294 | unregister_sysctl_table(irda_table_header); | |
295 | } | |
296 | ||
297 | ||
298 |