summaryrefslogtreecommitdiff
path: root/drivers/isdn/capi/kcapi_proc.c
blob: c94bd12c0f7c6d04a6d1c87cebb8d091cb11e06e (plain) (blame)
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
/*
 * Kernel CAPI 2.0 Module - /proc/capi handling
 *
 * Copyright 1999 by Carsten Paeth <calle@calle.de>
 * Copyright 2002 by Kai Germaschewski <kai@germaschewski.name>
 *
 * This software may be used and distributed according to the terms
 * of the GNU General Public License, incorporated herein by reference.
 *
 */


#include "kcapi.h"
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/init.h>
#include <linux/export.h>

static char *state2str(unsigned short state)
{
	switch (state) {
	case CAPI_CTR_DETECTED:	return "detected";
	case CAPI_CTR_LOADING:	return "loading";
	case CAPI_CTR_RUNNING:	return "running";
	default:	        return "???";
	}
}

// /proc/capi
// ===========================================================================

// /proc/capi/controller:
//      cnr driver cardstate name driverinfo
// /proc/capi/contrstats:
//      cnr nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt
// ---------------------------------------------------------------------------

static void *controller_start(struct seq_file *seq, loff_t *pos)
	__acquires(capi_controller_lock)
{
	mutex_lock(&capi_controller_lock);

	if (*pos < CAPI_MAXCONTR)
		return &capi_controller[*pos];

	return NULL;
}

static void *controller_next(struct seq_file *seq, void *v, loff_t *pos)
{
	++*pos;
	if (*pos < CAPI_MAXCONTR)
		return &capi_controller[*pos];

	return NULL;
}

static void controller_stop(struct seq_file *seq, void *v)
	__releases(capi_controller_lock)
{
	mutex_unlock(&capi_controller_lock);
}

static int controller_show(struct seq_file *seq, void *v)
{
	struct capi_ctr *ctr = *(struct capi_ctr **) v;

	if (!ctr)
		return 0;

	seq_printf(seq, "%d %-10s %-8s %-16s %s\n",
		   ctr->cnr, ctr->driver_name,
		   state2str(ctr->state),
		   ctr->name,
		   ctr->procinfo ?  ctr->procinfo(ctr) : "");

	return 0;
}

static int contrstats_show(struct seq_file *seq, void *v)
{
	struct capi_ctr *ctr = *(struct capi_ctr **) v;

	if (!ctr)
		return 0;

	seq_printf(seq, "%d %lu %lu %lu %lu\n",
		   ctr->cnr,
		   ctr->nrecvctlpkt,
		   ctr->nrecvdatapkt,
		   ctr->nsentctlpkt,
		   ctr->nsentdatapkt);

	return 0;
}

static const struct seq_operations seq_controller_ops = {
	.start	= controller_start,
	.next	= controller_next,
	.stop	= controller_stop,
	.show	= controller_show,
};

static const struct seq_operations seq_contrstats_ops = {
	.start	= controller_start,
	.next	= controller_next,
	.stop	= controller_stop,
	.show	= contrstats_show,
};

// /proc/capi/applications:
//      applid l3cnt dblkcnt dblklen #ncci recvqueuelen
// /proc/capi/applstats:
//      applid nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt
// ---------------------------------------------------------------------------

static void *applications_start(struct seq_file *seq, loff_t *pos)
	__acquires(capi_controller_lock)
{
	mutex_lock(&capi_controller_lock);

	if (*pos < CAPI_MAXAPPL)
		return &capi_applications[*pos];

	return NULL;
}

static void *
applications_next(struct seq_file *seq, void *v, loff_t *pos)
{
	++*pos;
	if (*pos < CAPI_MAXAPPL)
		return &capi_applications[*pos];

	return NULL;
}

static void applications_stop(struct seq_file *seq, void *v)
	__releases(capi_controller_lock)
{
	mutex_unlock(&capi_controller_lock);
}

static int
applications_show(struct seq_file *seq, void *v)
{
	struct capi20_appl *ap = *(struct capi20_appl **) v;

	if (!ap)
		return 0;

	seq_printf(seq, "%u %d %d %d\n",
		   ap->applid,
		   ap->rparam.level3cnt,
		   ap->rparam.datablkcnt,
		   ap->rparam.datablklen);

	return 0;
}

static int
applstats_show(struct seq_file *seq, void *v)
{
	struct capi20_appl *ap = *(struct capi20_appl **) v;

	if (!ap)
		return 0;

	seq_printf(seq, "%u %lu %lu %lu %lu\n",
		   ap->applid,
		   ap->nrecvctlpkt,
		   ap->nrecvdatapkt,
		   ap->nsentctlpkt,
		   ap->nsentdatapkt);

	return 0;
}

static const struct seq_operations seq_applications_ops = {
	.start	= applications_start,
	.next	= applications_next,
	.stop	= applications_stop,
	.show	= applications_show,
};

static const struct seq_operations seq_applstats_ops = {
	.start	= applications_start,
	.next	= applications_next,
	.stop	= applications_stop,
	.show	= applstats_show,
};

// ---------------------------------------------------------------------------

static void *capi_driver_start(struct seq_file *seq, loff_t *pos)
	__acquires(&capi_drivers_lock)
{
	mutex_lock(&capi_drivers_lock);
	return seq_list_start(&capi_drivers, *pos);
}

static void *capi_driver_next(struct seq_file *seq, void *v, loff_t *pos)
{
	return seq_list_next(v, &capi_drivers, pos);
}

static void capi_driver_stop(struct seq_file *seq, void *v)
	__releases(&capi_drivers_lock)
{
	mutex_unlock(&capi_drivers_lock);
}

static int capi_driver_show(struct seq_file *seq, void *v)
{
	struct capi_driver *drv = list_entry(v, struct capi_driver, list);

	seq_printf(seq, "%-32s %s\n", drv->name, drv->revision);
	return 0;
}

static const struct seq_operations seq_capi_driver_ops = {
	.start	= capi_driver_start,
	.next	= capi_driver_next,
	.stop	= capi_driver_stop,
	.show	= capi_driver_show,
};

// ---------------------------------------------------------------------------

void __init
kcapi_proc_init(void)
{
	proc_mkdir("capi",             NULL);
	proc_mkdir("capi/controllers", NULL);
	proc_create_seq("capi/controller",   0, NULL, &seq_controller_ops);
	proc_create_seq("capi/contrstats",   0, NULL, &seq_contrstats_ops);
	proc_create_seq("capi/applications", 0, NULL, &seq_applications_ops);
	proc_create_seq("capi/applstats",    0, NULL, &seq_applstats_ops);
	proc_create_seq("capi/driver",       0, NULL, &seq_capi_driver_ops);
}

void __exit
kcapi_proc_exit(void)
{
	remove_proc_entry("capi/driver",       NULL);
	remove_proc_entry("capi/controller",   NULL);
	remove_proc_entry("capi/contrstats",   NULL);
	remove_proc_entry("capi/applications", NULL);
	remove_proc_entry("capi/applstats",    NULL);
	remove_proc_entry("capi/controllers",  NULL);
	remove_proc_entry("capi",              NULL);
}