1 /*
2 * oxfw_proc.c - a part of driver for OXFW970/971 based devices
3 *
4 * Copyright (c) 2014 Takashi Sakamoto
5 *
6 * Licensed under the terms of the GNU General Public License, version 2.
7 */
8
9 #include "./oxfw.h"
10
proc_read_formation(struct snd_info_entry * entry,struct snd_info_buffer * buffer)11 static void proc_read_formation(struct snd_info_entry *entry,
12 struct snd_info_buffer *buffer)
13 {
14 struct snd_oxfw *oxfw = entry->private_data;
15 struct snd_oxfw_stream_formation formation, curr;
16 u8 *format;
17 char flag;
18 int i, err;
19
20 /* Show input. */
21 err = snd_oxfw_stream_get_current_formation(oxfw,
22 AVC_GENERAL_PLUG_DIR_IN,
23 &curr);
24 if (err < 0)
25 return;
26
27 snd_iprintf(buffer, "Input Stream to device:\n");
28 snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n");
29 for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
30 format = oxfw->rx_stream_formats[i];
31 if (format == NULL)
32 continue;
33
34 err = snd_oxfw_stream_parse_format(format, &formation);
35 if (err < 0)
36 continue;
37
38 if (memcmp(&formation, &curr, sizeof(curr)) == 0)
39 flag = '*';
40 else
41 flag = ' ';
42
43 snd_iprintf(buffer, "%c\t%d\t%d\t%d\n", flag,
44 formation.rate, formation.pcm, formation.midi);
45 }
46
47 if (!oxfw->has_output)
48 return;
49
50 /* Show output. */
51 err = snd_oxfw_stream_get_current_formation(oxfw,
52 AVC_GENERAL_PLUG_DIR_OUT,
53 &curr);
54 if (err < 0)
55 return;
56
57 snd_iprintf(buffer, "Output Stream from device:\n");
58 snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n");
59 for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
60 format = oxfw->tx_stream_formats[i];
61 if (format == NULL)
62 continue;
63
64 err = snd_oxfw_stream_parse_format(format, &formation);
65 if (err < 0)
66 continue;
67
68 if (memcmp(&formation, &curr, sizeof(curr)) == 0)
69 flag = '*';
70 else
71 flag = ' ';
72
73 snd_iprintf(buffer, "%c\t%d\t%d\t%d\n", flag,
74 formation.rate, formation.pcm, formation.midi);
75 }
76 }
77
add_node(struct snd_oxfw * oxfw,struct snd_info_entry * root,const char * name,void (* op)(struct snd_info_entry * e,struct snd_info_buffer * b))78 static void add_node(struct snd_oxfw *oxfw, struct snd_info_entry *root,
79 const char *name,
80 void (*op)(struct snd_info_entry *e,
81 struct snd_info_buffer *b))
82 {
83 struct snd_info_entry *entry;
84
85 entry = snd_info_create_card_entry(oxfw->card, name, root);
86 if (entry == NULL)
87 return;
88
89 snd_info_set_text_ops(entry, oxfw, op);
90 if (snd_info_register(entry) < 0)
91 snd_info_free_entry(entry);
92 }
93
snd_oxfw_proc_init(struct snd_oxfw * oxfw)94 void snd_oxfw_proc_init(struct snd_oxfw *oxfw)
95 {
96 struct snd_info_entry *root;
97
98 /*
99 * All nodes are automatically removed at snd_card_disconnect(),
100 * by following to link list.
101 */
102 root = snd_info_create_card_entry(oxfw->card, "firewire",
103 oxfw->card->proc_root);
104 if (root == NULL)
105 return;
106 root->mode = S_IFDIR | S_IRUGO | S_IXUGO;
107 if (snd_info_register(root) < 0) {
108 snd_info_free_entry(root);
109 return;
110 }
111
112 add_node(oxfw, root, "formation", proc_read_formation);
113 }
114