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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; | |
9566042e AK |
43 | extern unsigned int sysctl_min_tx_turn_time; |
44 | extern unsigned int sysctl_max_tx_data_size; | |
45 | extern unsigned int sysctl_max_tx_window; | |
1da177e4 LT |
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 | ||
8d65af78 | 76 | static int do_devname(ctl_table *table, int write, |
1da177e4 LT |
77 | void __user *buffer, size_t *lenp, loff_t *ppos) |
78 | { | |
79 | int ret; | |
80 | ||
8d65af78 | 81 | ret = proc_dostring(table, write, buffer, lenp, ppos); |
1da177e4 LT |
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 | 92 | |
8d65af78 | 93 | static int do_discovery(ctl_table *table, int write, |
91cde6f7 RB |
94 | void __user *buffer, size_t *lenp, loff_t *ppos) |
95 | { | |
96 | int ret; | |
97 | ||
8d65af78 | 98 | ret = proc_dointvec(table, write, buffer, lenp, ppos); |
91cde6f7 RB |
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 | { | |
1da177e4 LT |
116 | .procname = "discovery", |
117 | .data = &sysctl_discovery, | |
118 | .maxlen = sizeof(int), | |
119 | .mode = 0644, | |
6d9f239a | 120 | .proc_handler = do_discovery, |
1da177e4 LT |
121 | }, |
122 | { | |
1da177e4 LT |
123 | .procname = "devname", |
124 | .data = sysctl_devname, | |
125 | .maxlen = 65, | |
126 | .mode = 0644, | |
6d9f239a | 127 | .proc_handler = do_devname, |
1da177e4 LT |
128 | }, |
129 | #ifdef CONFIG_IRDA_DEBUG | |
6819bc2e | 130 | { |
1da177e4 LT |
131 | .procname = "debug", |
132 | .data = &irda_debug, | |
133 | .maxlen = sizeof(int), | |
134 | .mode = 0644, | |
6d9f239a | 135 | .proc_handler = proc_dointvec |
1da177e4 LT |
136 | }, |
137 | #endif | |
138 | #ifdef CONFIG_IRDA_FAST_RR | |
6819bc2e | 139 | { |
1da177e4 LT |
140 | .procname = "fast_poll_increase", |
141 | .data = &sysctl_fast_poll_increase, | |
142 | .maxlen = sizeof(int), | |
143 | .mode = 0644, | |
6d9f239a | 144 | .proc_handler = proc_dointvec |
1da177e4 LT |
145 | }, |
146 | #endif | |
147 | { | |
1da177e4 LT |
148 | .procname = "discovery_slots", |
149 | .data = &sysctl_discovery_slots, | |
150 | .maxlen = sizeof(int), | |
151 | .mode = 0644, | |
6d9f239a | 152 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
153 | .extra1 = &min_discovery_slots, |
154 | .extra2 = &max_discovery_slots | |
155 | }, | |
156 | { | |
1da177e4 LT |
157 | .procname = "discovery_timeout", |
158 | .data = &sysctl_discovery_timeout, | |
159 | .maxlen = sizeof(int), | |
160 | .mode = 0644, | |
6d9f239a | 161 | .proc_handler = proc_dointvec |
1da177e4 LT |
162 | }, |
163 | { | |
1da177e4 LT |
164 | .procname = "slot_timeout", |
165 | .data = &sysctl_slot_timeout, | |
166 | .maxlen = sizeof(int), | |
167 | .mode = 0644, | |
6d9f239a | 168 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
169 | .extra1 = &min_slot_timeout, |
170 | .extra2 = &max_slot_timeout | |
171 | }, | |
172 | { | |
1da177e4 LT |
173 | .procname = "max_baud_rate", |
174 | .data = &sysctl_max_baud_rate, | |
175 | .maxlen = sizeof(int), | |
176 | .mode = 0644, | |
6d9f239a | 177 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
178 | .extra1 = &min_max_baud_rate, |
179 | .extra2 = &max_max_baud_rate | |
180 | }, | |
181 | { | |
1da177e4 LT |
182 | .procname = "min_tx_turn_time", |
183 | .data = &sysctl_min_tx_turn_time, | |
184 | .maxlen = sizeof(int), | |
185 | .mode = 0644, | |
6d9f239a | 186 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
187 | .extra1 = &min_min_tx_turn_time, |
188 | .extra2 = &max_min_tx_turn_time | |
189 | }, | |
190 | { | |
1da177e4 LT |
191 | .procname = "max_tx_data_size", |
192 | .data = &sysctl_max_tx_data_size, | |
193 | .maxlen = sizeof(int), | |
194 | .mode = 0644, | |
6d9f239a | 195 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
196 | .extra1 = &min_max_tx_data_size, |
197 | .extra2 = &max_max_tx_data_size | |
198 | }, | |
199 | { | |
1da177e4 LT |
200 | .procname = "max_tx_window", |
201 | .data = &sysctl_max_tx_window, | |
202 | .maxlen = sizeof(int), | |
203 | .mode = 0644, | |
6d9f239a | 204 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
205 | .extra1 = &min_max_tx_window, |
206 | .extra2 = &max_max_tx_window | |
207 | }, | |
208 | { | |
1da177e4 LT |
209 | .procname = "max_noreply_time", |
210 | .data = &sysctl_max_noreply_time, | |
211 | .maxlen = sizeof(int), | |
212 | .mode = 0644, | |
6d9f239a | 213 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
214 | .extra1 = &min_max_noreply_time, |
215 | .extra2 = &max_max_noreply_time | |
216 | }, | |
217 | { | |
1da177e4 LT |
218 | .procname = "warn_noreply_time", |
219 | .data = &sysctl_warn_noreply_time, | |
220 | .maxlen = sizeof(int), | |
221 | .mode = 0644, | |
6d9f239a | 222 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
223 | .extra1 = &min_warn_noreply_time, |
224 | .extra2 = &max_warn_noreply_time | |
225 | }, | |
226 | { | |
1da177e4 LT |
227 | .procname = "lap_keepalive_time", |
228 | .data = &sysctl_lap_keepalive_time, | |
229 | .maxlen = sizeof(int), | |
230 | .mode = 0644, | |
6d9f239a | 231 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
232 | .extra1 = &min_lap_keepalive_time, |
233 | .extra2 = &max_lap_keepalive_time | |
234 | }, | |
f8572d8f | 235 | { } |
1da177e4 LT |
236 | }; |
237 | ||
b5ccd792 | 238 | static struct ctl_path irda_path[] = { |
f8572d8f EB |
239 | { .procname = "net", }, |
240 | { .procname = "irda", }, | |
b5ccd792 | 241 | { } |
1da177e4 LT |
242 | }; |
243 | ||
244 | static struct ctl_table_header *irda_table_header; | |
245 | ||
246 | /* | |
247 | * Function irda_sysctl_register (void) | |
248 | * | |
249 | * Register our sysctl interface | |
250 | * | |
251 | */ | |
252 | int __init irda_sysctl_register(void) | |
253 | { | |
b5ccd792 | 254 | irda_table_header = register_sysctl_paths(irda_path, irda_table); |
1da177e4 LT |
255 | if (!irda_table_header) |
256 | return -ENOMEM; | |
257 | ||
258 | return 0; | |
259 | } | |
260 | ||
261 | /* | |
262 | * Function irda_sysctl_unregister (void) | |
263 | * | |
264 | * Unregister our sysctl interface | |
265 | * | |
266 | */ | |
75a69ac6 | 267 | void irda_sysctl_unregister(void) |
1da177e4 LT |
268 | { |
269 | unregister_sysctl_table(irda_table_header); | |
270 | } | |
271 | ||
272 | ||
273 |