1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * ff-proc.c - a part of driver for RME Fireface series
4  *
5  * Copyright (c) 2015-2017 Takashi Sakamoto
6  */
7 
8 #include "./ff.h"
9 
snd_ff_proc_get_clk_label(enum snd_ff_clock_src src)10 const char *snd_ff_proc_get_clk_label(enum snd_ff_clock_src src)
11 {
12 	static const char *const labels[] = {
13 		"Internal",
14 		"S/PDIF",
15 		"ADAT1",
16 		"ADAT2",
17 		"Word",
18 		"LTC",
19 	};
20 
21 	if (src >= ARRAY_SIZE(labels))
22 		return NULL;
23 
24 	return labels[src];
25 }
26 
proc_dump_status(struct snd_info_entry * entry,struct snd_info_buffer * buffer)27 static void proc_dump_status(struct snd_info_entry *entry,
28 			     struct snd_info_buffer *buffer)
29 {
30 	struct snd_ff *ff = entry->private_data;
31 
32 	ff->spec->protocol->dump_status(ff, buffer);
33 }
34 
add_node(struct snd_ff * ff,struct snd_info_entry * root,const char * name,void (* op)(struct snd_info_entry * e,struct snd_info_buffer * b))35 static void add_node(struct snd_ff *ff, struct snd_info_entry *root,
36 		     const char *name,
37 		     void (*op)(struct snd_info_entry *e,
38 				struct snd_info_buffer *b))
39 {
40 	struct snd_info_entry *entry;
41 
42 	entry = snd_info_create_card_entry(ff->card, name, root);
43 	if (entry)
44 		snd_info_set_text_ops(entry, ff, op);
45 }
46 
snd_ff_proc_init(struct snd_ff * ff)47 void snd_ff_proc_init(struct snd_ff *ff)
48 {
49 	struct snd_info_entry *root;
50 
51 	/*
52 	 * All nodes are automatically removed at snd_card_disconnect(),
53 	 * by following to link list.
54 	 */
55 	root = snd_info_create_card_entry(ff->card, "firewire",
56 					  ff->card->proc_root);
57 	if (root == NULL)
58 		return;
59 	root->mode = S_IFDIR | 0555;
60 
61 	add_node(ff, root, "status", proc_dump_status);
62 }
63