xref: /openbmc/linux/sound/core/seq/seq_info.c (revision 588b48ca)
1 /*
2  *   ALSA sequencer /proc interface
3  *   Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl>
4  *
5  *
6  *   This program is free software; you can redistribute it and/or modify
7  *   it under the terms of the GNU General Public License as published by
8  *   the Free Software Foundation; either version 2 of the License, or
9  *   (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *   GNU General Public License for more details.
15  *
16  *   You should have received a copy of the GNU General Public License
17  *   along with this program; if not, write to the Free Software
18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19  *
20  */
21 
22 #include <linux/init.h>
23 #include <linux/export.h>
24 #include <sound/core.h>
25 
26 #include "seq_info.h"
27 #include "seq_clientmgr.h"
28 #include "seq_timer.h"
29 
30 #ifdef CONFIG_PROC_FS
31 static struct snd_info_entry *queues_entry;
32 static struct snd_info_entry *clients_entry;
33 static struct snd_info_entry *timer_entry;
34 
35 
36 static struct snd_info_entry * __init
37 create_info_entry(char *name, void (*read)(struct snd_info_entry *,
38 					   struct snd_info_buffer *))
39 {
40 	struct snd_info_entry *entry;
41 
42 	entry = snd_info_create_module_entry(THIS_MODULE, name, snd_seq_root);
43 	if (entry == NULL)
44 		return NULL;
45 	entry->content = SNDRV_INFO_CONTENT_TEXT;
46 	entry->c.text.read = read;
47 	if (snd_info_register(entry) < 0) {
48 		snd_info_free_entry(entry);
49 		return NULL;
50 	}
51 	return entry;
52 }
53 
54 /* create all our /proc entries */
55 int __init snd_seq_info_init(void)
56 {
57 	queues_entry = create_info_entry("queues",
58 					 snd_seq_info_queues_read);
59 	clients_entry = create_info_entry("clients",
60 					  snd_seq_info_clients_read);
61 	timer_entry = create_info_entry("timer", snd_seq_info_timer_read);
62 	return 0;
63 }
64 
65 int __exit snd_seq_info_done(void)
66 {
67 	snd_info_free_entry(queues_entry);
68 	snd_info_free_entry(clients_entry);
69 	snd_info_free_entry(timer_entry);
70 	return 0;
71 }
72 #endif
73