summaryrefslogtreecommitdiffstats
path: root/net/irda/irsysctl.c
blob: 5c86567e5a78c3d84c511f038dd18a9834f9efe2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
/*********************************************************************
 *
 * Filename:      irsysctl.c
 * Version:       1.0
 * Description:   Sysctl interface for IrDA
 * Status:        Experimental.
 * Author:        Dag Brattli <dagb@cs.uit.no>
 * Created at:    Sun May 24 22:12:06 1998
 * Modified at:   Fri Jun  4 02:50:15 1999
 * Modified by:   Dag Brattli <dagb@cs.uit.no>
 *
 *     Copyright (c) 1997, 1999 Dag Brattli, All Rights Reserved.
 *     Copyright (c) 2000-2001 Jean Tourrilhes <jt@hpl.hp.com>
 *
 *     This program is free software; you can redistribute it and/or
 *     modify it under the terms of the GNU General Public License as
 *     published by the Free Software Foundation; either version 2 of
 *     the License, or (at your option) any later version.
 *
 *     Neither Dag Brattli nor University of Tromsø admit liability nor
 *     provide warranty for any of this software. This material is
 *     provided "AS-IS" and at no charge.
 *
 ********************************************************************/

#include <linux/mm.h>
#include <linux/ctype.h>
#include <linux/sysctl.h>
#include <linux/init.h>

#include <net/irda/irda.h>		/* irda_debug */
#include <net/irda/irlmp.h>
#include <net/irda/timer.h>
#include <net/irda/irias_object.h>

extern int  sysctl_discovery;
extern int  sysctl_discovery_slots;
extern int  sysctl_discovery_timeout;
extern int  sysctl_slot_timeout;
extern int  sysctl_fast_poll_increase;
extern char sysctl_devname[];
extern int  sysctl_max_baud_rate;
extern int  sysctl_min_tx_turn_time;
extern int  sysctl_max_tx_data_size;
extern int  sysctl_max_tx_window;
extern int  sysctl_max_noreply_time;
extern int  sysctl_warn_noreply_time;
extern int  sysctl_lap_keepalive_time;

extern struct irlmp_cb *irlmp;

/* this is needed for the proc_dointvec_minmax - Jean II */
static int max_discovery_slots = 16;		/* ??? */
static int min_discovery_slots = 1;
/* IrLAP 6.13.2 says 25ms to 10+70ms - allow higher since some devices
 * seems to require it. (from Dag's comment) */
static int max_slot_timeout = 160;
static int min_slot_timeout = 20;
static int max_max_baud_rate = 16000000;	/* See qos.c - IrLAP spec */
static int min_max_baud_rate = 2400;
static int max_min_tx_turn_time = 10000;	/* See qos.c - IrLAP spec */
static int min_min_tx_turn_time;
static int max_max_tx_data_size = 2048;		/* See qos.c - IrLAP spec */
static int min_max_tx_data_size = 64;
static int max_max_tx_window = 7;		/* See qos.c - IrLAP spec */
static int min_max_tx_window = 1;
static int max_max_noreply_time = 40;		/* See qos.c - IrLAP spec */
static int min_max_noreply_time = 3;
static int max_warn_noreply_time = 3;		/* 3s == standard */
static int min_warn_noreply_time = 1;		/* 1s == min WD_TIMER */
static int max_lap_keepalive_time = 10000;	/* 10s */
static int min_lap_keepalive_time = 100;	/* 100us */
/* For other sysctl, I've no idea of the range. Maybe Dag could help
 * us on that - Jean II */

static int do_devname(ctl_table *table, int write,
		      void __user *buffer, size_t *lenp, loff_t *ppos)
{
	int ret;

	ret = proc_dostring(table, write, buffer, lenp, ppos);
	if (ret == 0 && write) {
		struct ias_value *val;

		val = irias_new_string_value(sysctl_devname);
		if (val)
			irias_object_change_attribute("Device", "DeviceName", val);
	}
	return ret;
}


static int do_discovery(ctl_table *table, int write,
                    void __user *buffer, size_t *lenp, loff_t *ppos)
{
       int ret;

       ret = proc_dointvec(table, write, buffer, lenp, ppos);
       if (ret)
	       return ret;

       if (irlmp == NULL)
	       return -ENODEV;

       if (sysctl_discovery)
	       irlmp_start_discovery_timer(irlmp, sysctl_discovery_timeout*HZ);
       else
	       del_timer_sync(&irlmp->discovery_timer);

       return ret;
}

/* One file */
static ctl_table irda_table[] = {
	{
		.ctl_name	= NET_IRDA_DISCOVERY,
		.procname	= "discovery",
		.data		= &sysctl_discovery,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= do_discovery,
		.strategy       = sysctl_intvec
	},
	{
		.ctl_name	= NET_IRDA_DEVNAME,
		.procname	= "devname",
		.data		= sysctl_devname,
		.maxlen		= 65,
		.mode		= 0644,
		.proc_handler	= do_devname,
		.strategy	= sysctl_string
	},
#ifdef CONFIG_IRDA_DEBUG
	{
		.ctl_name	= NET_IRDA_DEBUG,
		.procname	= "debug",
		.data		= &irda_debug,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec
	},
#endif
#ifdef CONFIG_IRDA_FAST_RR
	{
		.ctl_name	= NET_IRDA_FAST_POLL,
		.procname	= "fast_poll_increase",
		.data		= &sysctl_fast_poll_increase,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec
	},
#endif
	{
		.ctl_name	= NET_IRDA_DISCOVERY_SLOTS,
		.procname	= "discovery_slots",
		.data		= &sysctl_discovery_slots,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.strategy	= sysctl_intvec,
		.extra1		= &min_discovery_slots,
		.extra2		= &max_discovery_slots
	},
	{
		.ctl_name	= NET_IRDA_DISCOVERY_TIMEOUT,
		.procname	= "discovery_timeout",
		.data		= &sysctl_discovery_timeout,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec
	},
	{
		.ctl_name	= NET_IRDA_SLOT_TIMEOUT,
		.procname	= "slot_timeout",
		.data		= &sysctl_slot_timeout,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.strategy	= sysctl_intvec,
		.extra1		= &min_slot_timeout,
		.extra2		= &max_slot_timeout
	},
	{
		.ctl_name	= NET_IRDA_MAX_BAUD_RATE,
		.procname	= "max_baud_rate",
		.data		= &sysctl_max_baud_rate,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.strategy	= sysctl_intvec,
		.extra1		= &min_max_baud_rate,
		.extra2		= &max_max_baud_rate
	},
	{
		.ctl_name	= NET_IRDA_MIN_TX_TURN_TIME,
		.procname	= "min_tx_turn_time",
		.data		= &sysctl_min_tx_turn_time,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.strategy	= sysctl_intvec,
		.extra1		= &min_min_tx_turn_time,
		.extra2		= &max_min_tx_turn_time
	},
	{
		.ctl_name	= NET_IRDA_MAX_TX_DATA_SIZE,
		.procname	= "max_tx_data_size",
		.data		= &sysctl_max_tx_data_size,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.strategy	= sysctl_intvec,
		.extra1		= &min_max_tx_data_size,
		.extra2		= &max_max_tx_data_size
	},
	{
		.ctl_name	= NET_IRDA_MAX_TX_WINDOW,
		.procname	= "max_tx_window",
		.data		= &sysctl_max_tx_window,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.strategy	= sysctl_intvec,
		.extra1		= &min_max_tx_window,
		.extra2		= &max_max_tx_window
	},
	{
		.ctl_name	= NET_IRDA_MAX_NOREPLY_TIME,
		.procname	= "max_noreply_time",
		.data		= &sysctl_max_noreply_time,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.strategy	= sysctl_intvec,
		.extra1		= &min_max_noreply_time,
		.extra2		= &max_max_noreply_time
	},
	{
		.ctl_name	= NET_IRDA_WARN_NOREPLY_TIME,
		.procname	= "warn_noreply_time",
		.data		= &sysctl_warn_noreply_time,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.strategy	= sysctl_intvec,
		.extra1		= &min_warn_noreply_time,
		.extra2		= &max_warn_noreply_time
	},
	{
		.ctl_name	= NET_IRDA_LAP_KEEPALIVE_TIME,
		.procname	= "lap_keepalive_time",
		.data		= &sysctl_lap_keepalive_time,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.strategy	= sysctl_intvec,
		.extra1		= &min_lap_keepalive_time,
		.extra2		= &max_lap_keepalive_time
	},
	{ .ctl_name = 0 }
};

static struct ctl_path irda_path[] = {
	{ .procname = "net", .ctl_name = CTL_NET, },
	{ .procname = "irda", .ctl_name = NET_IRDA, },
	{ }
};

static struct ctl_table_header *irda_table_header;

/*
 * Function irda_sysctl_register (void)
 *
 *    Register our sysctl interface
 *
 */
int __init irda_sysctl_register(void)
{
	irda_table_header = register_sysctl_paths(irda_path, irda_table);
	if (!irda_table_header)
		return -ENOMEM;

	return 0;
}

/*
 * Function irda_sysctl_unregister (void)
 *
 *    Unregister our sysctl interface
 *
 */
void irda_sysctl_unregister(void)
{
	unregister_sysctl_table(irda_table_header);
}



OpenPOWER on IntegriCloud