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
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* motu-proc.c - a part of driver for MOTU FireWire series
*
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
*/
#include "./motu.h"
static const char *const clock_names[] = {
[SND_MOTU_CLOCK_SOURCE_INTERNAL] = "Internal",
[SND_MOTU_CLOCK_SOURCE_ADAT_ON_DSUB] = "ADAT on Dsub-9pin interface",
[SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT] = "ADAT on optical interface",
[SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_A] = "ADAT on optical interface A",
[SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_B] = "ADAT on optical interface B",
[SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT] = "S/PDIF on optical interface",
[SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_A] = "S/PDIF on optical interface A",
[SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_B] = "S/PDIF on optical interface B",
[SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX] = "S/PDIF on coaxial interface",
[SND_MOTU_CLOCK_SOURCE_AESEBU_ON_XLR] = "AESEBU on XLR interface",
[SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC] = "Word clock on BNC interface",
[SND_MOTU_CLOCK_SOURCE_SPH] = "Source packet header",
[SND_MOTU_CLOCK_SOURCE_UNKNOWN] = "Unknown",
};
static void proc_read_clock(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_motu *motu = entry->private_data;
const struct snd_motu_protocol *const protocol = motu->spec->protocol;
unsigned int rate;
enum snd_motu_clock_source source;
if (protocol->get_clock_rate(motu, &rate) < 0)
return;
if (protocol->get_clock_source(motu, &source) < 0)
return;
snd_iprintf(buffer, "Rate:\t%d\n", rate);
snd_iprintf(buffer, "Source:\t%s\n", clock_names[source]);
}
static void proc_read_format(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_motu *motu = entry->private_data;
const struct snd_motu_protocol *const protocol = motu->spec->protocol;
unsigned int mode;
struct snd_motu_packet_format *formats;
int i;
if (protocol->cache_packet_formats(motu) < 0)
return;
snd_iprintf(buffer, "tx:\tmsg\tfixed\tdiffered\n");
for (i = 0; i < SND_MOTU_CLOCK_RATE_COUNT; ++i) {
mode = i >> 1;
formats = &motu->tx_packet_formats;
snd_iprintf(buffer,
"%u:\t%u\t%u\t%u\n",
snd_motu_clock_rates[i],
formats->msg_chunks,
formats->fixed_part_pcm_chunks[mode],
formats->differed_part_pcm_chunks[mode]);
}
snd_iprintf(buffer, "rx:\tmsg\tfixed\tdiffered\n");
for (i = 0; i < SND_MOTU_CLOCK_RATE_COUNT; ++i) {
mode = i >> 1;
formats = &motu->rx_packet_formats;
snd_iprintf(buffer,
"%u:\t%u\t%u\t%u\n",
snd_motu_clock_rates[i],
formats->msg_chunks,
formats->fixed_part_pcm_chunks[mode],
formats->differed_part_pcm_chunks[mode]);
}
}
static void add_node(struct snd_motu *motu, struct snd_info_entry *root,
const char *name,
void (*op)(struct snd_info_entry *e,
struct snd_info_buffer *b))
{
struct snd_info_entry *entry;
entry = snd_info_create_card_entry(motu->card, name, root);
if (entry)
snd_info_set_text_ops(entry, motu, op);
}
void snd_motu_proc_init(struct snd_motu *motu)
{
struct snd_info_entry *root;
/*
* All nodes are automatically removed at snd_card_disconnect(),
* by following to link list.
*/
root = snd_info_create_card_entry(motu->card, "firewire",
motu->card->proc_root);
if (root == NULL)
return;
root->mode = S_IFDIR | 0555;
add_node(motu, root, "clock", proc_read_clock);
add_node(motu, root, "format", proc_read_format);
}
|
