digi00x-proc.c
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/*
* digi00x-proc.c - a part of driver for Digidesign Digi 002/003 family
*
* Copyright (c) 2014-2015 Takashi Sakamoto
*
* Licensed under the terms of the GNU General Public License, version 2.
*/
#include "digi00x.h"
static int get_optical_iface_mode(struct snd_dg00x *dg00x,
enum snd_dg00x_optical_mode *mode)
{
__be32 data;
int err;
err = snd_fw_transaction(dg00x->unit, TCODE_READ_QUADLET_REQUEST,
DG00X_ADDR_BASE + DG00X_OFFSET_OPT_IFACE_MODE,
&data, sizeof(data), 0);
if (err >= 0)
*mode = be32_to_cpu(data) & 0x01;
return err;
}
static void proc_read_clock(struct snd_info_entry *entry,
struct snd_info_buffer *buf)
{
static const char *const source_name[] = {
[SND_DG00X_CLOCK_INTERNAL] = "internal",
[SND_DG00X_CLOCK_SPDIF] = "s/pdif",
[SND_DG00X_CLOCK_ADAT] = "adat",
[SND_DG00X_CLOCK_WORD] = "word clock",
};
static const char *const optical_name[] = {
[SND_DG00X_OPT_IFACE_MODE_ADAT] = "adat",
[SND_DG00X_OPT_IFACE_MODE_SPDIF] = "s/pdif",
};
struct snd_dg00x *dg00x = entry->private_data;
enum snd_dg00x_optical_mode mode;
unsigned int rate;
enum snd_dg00x_clock clock;
bool detect;
if (get_optical_iface_mode(dg00x, &mode) < 0)
return;
if (snd_dg00x_stream_get_local_rate(dg00x, &rate) < 0)
return;
if (snd_dg00x_stream_get_clock(dg00x, &clock) < 0)
return;
snd_iprintf(buf, "Optical mode: %s\n", optical_name[mode]);
snd_iprintf(buf, "Sampling Rate: %d\n", rate);
snd_iprintf(buf, "Clock Source: %s\n", source_name[clock]);
if (clock == SND_DG00X_CLOCK_INTERNAL)
return;
if (snd_dg00x_stream_check_external_clock(dg00x, &detect) < 0)
return;
snd_iprintf(buf, "External source: %s\n", detect ? "detected" : "not");
if (!detect)
return;
if (snd_dg00x_stream_get_external_rate(dg00x, &rate) >= 0)
snd_iprintf(buf, "External sampling rate: %d\n", rate);
}
void snd_dg00x_proc_init(struct snd_dg00x *dg00x)
{
struct snd_info_entry *root, *entry;
/*
* All nodes are automatically removed at snd_card_disconnect(),
* by following to link list.
*/
root = snd_info_create_card_entry(dg00x->card, "firewire",
dg00x->card->proc_root);
if (root == NULL)
return;
root->mode = S_IFDIR | S_IRUGO | S_IXUGO;
if (snd_info_register(root) < 0) {
snd_info_free_entry(root);
return;
}
entry = snd_info_create_card_entry(dg00x->card, "clock", root);
if (entry == NULL) {
snd_info_free_entry(root);
return;
}
snd_info_set_text_ops(entry, dg00x, proc_read_clock);
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
snd_info_free_entry(root);
}
}