1 /*********************************************************************
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>
12 * Copyright (c) 1997, 1999 Dag Brattli, All Rights Reserved.
13 * Copyright (c) 2000-2001 Jean Tourrilhes <jt@hpl.hp.com>
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
18 * the License, or (at your option) any later version.
20 * Neither Dag Brattli nor University of Tromsø admit liability nor
21 * provide warranty for any of this software. This material is
22 * provided "AS-IS" and at no charge.
24 ********************************************************************/
26 #include <linux/config.h>
28 #include <linux/ctype.h>
29 #include <linux/sysctl.h>
30 #include <linux/init.h>
32 #include <net/irda/irda.h> /* irda_debug */
33 #include <net/irda/irias_object.h>
35 #define NET_IRDA 412 /* Random number */
36 enum { DISCOVERY
=1, DEVNAME
, DEBUG
, FAST_POLL
, DISCOVERY_SLOTS
,
37 DISCOVERY_TIMEOUT
, SLOT_TIMEOUT
, MAX_BAUD_RATE
, MIN_TX_TURN_TIME
,
38 MAX_TX_DATA_SIZE
, MAX_TX_WINDOW
, MAX_NOREPLY_TIME
, WARN_NOREPLY_TIME
,
41 extern int sysctl_discovery
;
42 extern int sysctl_discovery_slots
;
43 extern int sysctl_discovery_timeout
;
44 extern int sysctl_slot_timeout
;
45 extern int sysctl_fast_poll_increase
;
46 int sysctl_compression
= 0;
47 extern char sysctl_devname
[];
48 extern int sysctl_max_baud_rate
;
49 extern int sysctl_min_tx_turn_time
;
50 extern int sysctl_max_tx_data_size
;
51 extern int sysctl_max_tx_window
;
52 extern int sysctl_max_noreply_time
;
53 extern int sysctl_warn_noreply_time
;
54 extern int sysctl_lap_keepalive_time
;
56 /* this is needed for the proc_dointvec_minmax - Jean II */
57 static int max_discovery_slots
= 16; /* ??? */
58 static int min_discovery_slots
= 1;
59 /* IrLAP 6.13.2 says 25ms to 10+70ms - allow higher since some devices
60 * seems to require it. (from Dag's comment) */
61 static int max_slot_timeout
= 160;
62 static int min_slot_timeout
= 20;
63 static int max_max_baud_rate
= 16000000; /* See qos.c - IrLAP spec */
64 static int min_max_baud_rate
= 2400;
65 static int max_min_tx_turn_time
= 10000; /* See qos.c - IrLAP spec */
66 static int min_min_tx_turn_time
;
67 static int max_max_tx_data_size
= 2048; /* See qos.c - IrLAP spec */
68 static int min_max_tx_data_size
= 64;
69 static int max_max_tx_window
= 7; /* See qos.c - IrLAP spec */
70 static int min_max_tx_window
= 1;
71 static int max_max_noreply_time
= 40; /* See qos.c - IrLAP spec */
72 static int min_max_noreply_time
= 3;
73 static int max_warn_noreply_time
= 3; /* 3s == standard */
74 static int min_warn_noreply_time
= 1; /* 1s == min WD_TIMER */
75 static int max_lap_keepalive_time
= 10000; /* 10s */
76 static int min_lap_keepalive_time
= 100; /* 100us */
77 /* For other sysctl, I've no idea of the range. Maybe Dag could help
78 * us on that - Jean II */
80 static int do_devname(ctl_table
*table
, int write
, struct file
*filp
,
81 void *buffer
, size_t *lenp
)
85 ret
= proc_dostring(table
, write
, filp
, buffer
, lenp
);
86 if (ret
== 0 && write
) {
87 struct ias_value
*val
;
89 val
= irias_new_string_value(sysctl_devname
);
91 irias_object_change_attribute("Device", "DeviceName", val
);
97 static ctl_table irda_table
[] = {
99 .ctl_name
= DISCOVERY
,
100 .procname
= "discovery",
101 .data
= &sysctl_discovery
,
102 .maxlen
= sizeof(int),
104 .proc_handler
= &proc_dointvec
108 .procname
= "devname",
109 .data
= sysctl_devname
,
112 .proc_handler
= &do_devname
,
113 .strategy
= &sysctl_string
115 #ifdef CONFIG_IRDA_DEBUG
120 .maxlen
= sizeof(int),
122 .proc_handler
= &proc_dointvec
125 #ifdef CONFIG_IRDA_FAST_RR
127 .ctl_name
= FAST_POLL
,
128 .procname
= "fast_poll_increase",
129 .data
= &sysctl_fast_poll_increase
,
130 .maxlen
= sizeof(int),
132 .proc_handler
= &proc_dointvec
136 .ctl_name
= DISCOVERY_SLOTS
,
137 .procname
= "discovery_slots",
138 .data
= &sysctl_discovery_slots
,
139 .maxlen
= sizeof(int),
141 .proc_handler
= &proc_dointvec_minmax
,
142 .strategy
= &sysctl_intvec
,
143 .extra1
= &min_discovery_slots
,
144 .extra2
= &max_discovery_slots
147 .ctl_name
= DISCOVERY_TIMEOUT
,
148 .procname
= "discovery_timeout",
149 .data
= &sysctl_discovery_timeout
,
150 .maxlen
= sizeof(int),
152 .proc_handler
= &proc_dointvec
155 .ctl_name
= SLOT_TIMEOUT
,
156 .procname
= "slot_timeout",
157 .data
= &sysctl_slot_timeout
,
158 .maxlen
= sizeof(int),
160 .proc_handler
= &proc_dointvec_minmax
,
161 .strategy
= &sysctl_intvec
,
162 .extra1
= &min_slot_timeout
,
163 .extra2
= &max_slot_timeout
166 .ctl_name
= MAX_BAUD_RATE
,
167 .procname
= "max_baud_rate",
168 .data
= &sysctl_max_baud_rate
,
169 .maxlen
= sizeof(int),
171 .proc_handler
= &proc_dointvec_minmax
,
172 .strategy
= &sysctl_intvec
,
173 .extra1
= &min_max_baud_rate
,
174 .extra2
= &max_max_baud_rate
177 .ctl_name
= MIN_TX_TURN_TIME
,
178 .procname
= "min_tx_turn_time",
179 .data
= &sysctl_min_tx_turn_time
,
180 .maxlen
= sizeof(int),
182 .proc_handler
= &proc_dointvec_minmax
,
183 .strategy
= &sysctl_intvec
,
184 .extra1
= &min_min_tx_turn_time
,
185 .extra2
= &max_min_tx_turn_time
188 .ctl_name
= MAX_TX_DATA_SIZE
,
189 .procname
= "max_tx_data_size",
190 .data
= &sysctl_max_tx_data_size
,
191 .maxlen
= sizeof(int),
193 .proc_handler
= &proc_dointvec_minmax
,
194 .strategy
= &sysctl_intvec
,
195 .extra1
= &min_max_tx_data_size
,
196 .extra2
= &max_max_tx_data_size
199 .ctl_name
= MAX_TX_WINDOW
,
200 .procname
= "max_tx_window",
201 .data
= &sysctl_max_tx_window
,
202 .maxlen
= sizeof(int),
204 .proc_handler
= &proc_dointvec_minmax
,
205 .strategy
= &sysctl_intvec
,
206 .extra1
= &min_max_tx_window
,
207 .extra2
= &max_max_tx_window
210 .ctl_name
= MAX_NOREPLY_TIME
,
211 .procname
= "max_noreply_time",
212 .data
= &sysctl_max_noreply_time
,
213 .maxlen
= sizeof(int),
215 .proc_handler
= &proc_dointvec_minmax
,
216 .strategy
= &sysctl_intvec
,
217 .extra1
= &min_max_noreply_time
,
218 .extra2
= &max_max_noreply_time
221 .ctl_name
= WARN_NOREPLY_TIME
,
222 .procname
= "warn_noreply_time",
223 .data
= &sysctl_warn_noreply_time
,
224 .maxlen
= sizeof(int),
226 .proc_handler
= &proc_dointvec_minmax
,
227 .strategy
= &sysctl_intvec
,
228 .extra1
= &min_warn_noreply_time
,
229 .extra2
= &max_warn_noreply_time
232 .ctl_name
= LAP_KEEPALIVE_TIME
,
233 .procname
= "lap_keepalive_time",
234 .data
= &sysctl_lap_keepalive_time
,
235 .maxlen
= sizeof(int),
237 .proc_handler
= &proc_dointvec_minmax
,
238 .strategy
= &sysctl_intvec
,
239 .extra1
= &min_lap_keepalive_time
,
240 .extra2
= &max_lap_keepalive_time
246 static ctl_table irda_net_table
[] = {
248 .ctl_name
= NET_IRDA
,
257 /* The parent directory */
258 static ctl_table irda_root_table
[] = {
264 .child
= irda_net_table
269 static struct ctl_table_header
*irda_table_header
;
272 * Function irda_sysctl_register (void)
274 * Register our sysctl interface
277 int __init
irda_sysctl_register(void)
279 irda_table_header
= register_sysctl_table(irda_root_table
, 0);
280 if (!irda_table_header
)
287 * Function irda_sysctl_unregister (void)
289 * Unregister our sysctl interface
292 void __exit
irda_sysctl_unregister(void)
294 unregister_sysctl_table(irda_table_header
);