1 /*
2  * ff-proc.c - a part of driver for RME Fireface series
3  *
4  * Copyright (c) 2015-2017 Takashi Sakamoto
5  *
6  * Licensed under the terms of the GNU General Public License, version 2.
7  */
8 
9 #include "./ff.h"
10 
11 static void proc_dump_clock_config(struct snd_info_entry *entry,
12 				   struct snd_info_buffer *buffer)
13 {
14 	struct snd_ff *ff = entry->private_data;
15 
16 	ff->spec->protocol->dump_clock_config(ff, buffer);
17 }
18 
19 static void proc_dump_sync_status(struct snd_info_entry *entry,
20 				  struct snd_info_buffer *buffer)
21 {
22 	struct snd_ff *ff = entry->private_data;
23 
24 	ff->spec->protocol->dump_sync_status(ff, buffer);
25 }
26 
27 static void add_node(struct snd_ff *ff, struct snd_info_entry *root,
28 		     const char *name,
29 		     void (*op)(struct snd_info_entry *e,
30 				struct snd_info_buffer *b))
31 {
32 	struct snd_info_entry *entry;
33 
34 	entry = snd_info_create_card_entry(ff->card, name, root);
35 	if (entry == NULL)
36 		return;
37 
38 	snd_info_set_text_ops(entry, ff, op);
39 	if (snd_info_register(entry) < 0)
40 		snd_info_free_entry(entry);
41 }
42 
43 void snd_ff_proc_init(struct snd_ff *ff)
44 {
45 	struct snd_info_entry *root;
46 
47 	/*
48 	 * All nodes are automatically removed at snd_card_disconnect(),
49 	 * by following to link list.
50 	 */
51 	root = snd_info_create_card_entry(ff->card, "firewire",
52 					  ff->card->proc_root);
53 	if (root == NULL)
54 		return;
55 	root->mode = S_IFDIR | S_IRUGO | S_IXUGO;
56 	if (snd_info_register(root) < 0) {
57 		snd_info_free_entry(root);
58 		return;
59 	}
60 
61 	add_node(ff, root, "clock-config", proc_dump_clock_config);
62 	add_node(ff, root, "sync-status", proc_dump_sync_status);
63 }
64