linux/sound/firewire/bebob/bebob_terratec.c
Takashi Sakamoto 782fbec745 ALSA: firewire: add const qualifier to identifiers for read-only symbols
Drivers in ALSA firewire stack still includes some symbols which can be
moved to a section for read-only symbols.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-08-22 16:08:00 +02:00

55 lines
1.3 KiB
C

/*
* bebob_terratec.c - a part of driver for BeBoB based devices
*
* Copyright (c) 2013-2014 Takashi Sakamoto
*
* Licensed under the terms of the GNU General Public License, version 2.
*/
#include "./bebob.h"
static const enum snd_bebob_clock_type phase88_rack_clk_src_types[] = {
SND_BEBOB_CLOCK_TYPE_INTERNAL,
SND_BEBOB_CLOCK_TYPE_EXTERNAL, /* S/PDIF */
SND_BEBOB_CLOCK_TYPE_EXTERNAL, /* Word Clock */
};
static int
phase88_rack_clk_src_get(struct snd_bebob *bebob, unsigned int *id)
{
unsigned int enable_ext, enable_word;
int err;
err = avc_audio_get_selector(bebob->unit, 0, 9, &enable_ext);
if (err < 0)
goto end;
err = avc_audio_get_selector(bebob->unit, 0, 8, &enable_word);
if (err < 0)
goto end;
if (enable_ext == 0)
*id = 0;
else if (enable_word == 0)
*id = 1;
else
*id = 2;
end:
return err;
}
static const struct snd_bebob_rate_spec phase_series_rate_spec = {
.get = &snd_bebob_stream_get_rate,
.set = &snd_bebob_stream_set_rate,
};
/* PHASE 88 Rack FW */
static const struct snd_bebob_clock_spec phase88_rack_clk = {
.num = ARRAY_SIZE(phase88_rack_clk_src_types),
.types = phase88_rack_clk_src_types,
.get = &phase88_rack_clk_src_get,
};
const struct snd_bebob_spec phase88_rack_spec = {
.clock = &phase88_rack_clk,
.rate = &phase_series_rate_spec,
.meter = NULL
};