linux/sound/firewire/bebob/bebob_terratec.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * bebob_terratec.c - a part of driver for BeBoB based devices
   4 *
   5 * Copyright (c) 2013-2014 Takashi Sakamoto
   6 */
   7
   8#include "./bebob.h"
   9
  10static const enum snd_bebob_clock_type phase88_rack_clk_src_types[] = {
  11        SND_BEBOB_CLOCK_TYPE_INTERNAL,
  12        SND_BEBOB_CLOCK_TYPE_EXTERNAL,  /* S/PDIF */
  13        SND_BEBOB_CLOCK_TYPE_EXTERNAL,  /* Word Clock */
  14};
  15static int
  16phase88_rack_clk_src_get(struct snd_bebob *bebob, unsigned int *id)
  17{
  18        unsigned int enable_ext, enable_word;
  19        int err;
  20
  21        err = avc_audio_get_selector(bebob->unit, 0, 9, &enable_ext);
  22        if (err < 0)
  23                goto end;
  24        err = avc_audio_get_selector(bebob->unit, 0, 8, &enable_word);
  25        if (err < 0)
  26                goto end;
  27
  28        if (enable_ext == 0)
  29                *id = 0;
  30        else if (enable_word == 0)
  31                *id = 1;
  32        else
  33                *id = 2;
  34end:
  35        return err;
  36}
  37
  38static const struct snd_bebob_rate_spec phase_series_rate_spec = {
  39        .get    = &snd_bebob_stream_get_rate,
  40        .set    = &snd_bebob_stream_set_rate,
  41};
  42
  43/* PHASE 88 Rack FW */
  44static const struct snd_bebob_clock_spec phase88_rack_clk = {
  45        .num    = ARRAY_SIZE(phase88_rack_clk_src_types),
  46        .types  = phase88_rack_clk_src_types,
  47        .get    = &phase88_rack_clk_src_get,
  48};
  49const struct snd_bebob_spec phase88_rack_spec = {
  50        .clock  = &phase88_rack_clk,
  51        .rate   = &phase_series_rate_spec,
  52        .meter  = NULL
  53};
  54