LXR linux/sound/firewire/bebob/bebob

   1/*
   2 * bebob_terratec.c - a part of driver for BeBoB based devices
   3 *
   4 * Copyright (c) 2013-2014 Takashi Sakamoto
   5 *
   6 * Licensed under the terms of the GNU General Public License, version 2.
   7 */
   8
   9#include "./bebob.h"
  10
  11static enum snd_bebob_clock_type phase88_rack_clk_src_types[] = {
  12        SND_BEBOB_CLOCK_TYPE_INTERNAL,
  13        SND_BEBOB_CLOCK_TYPE_EXTERNAL,  /* S/PDIF */
  14        SND_BEBOB_CLOCK_TYPE_EXTERNAL,  /* Word Clock */
  15};
  16static int
  17phase88_rack_clk_src_get(struct snd_bebob *bebob, unsigned int *id)
  18{
  19        unsigned int enable_ext, enable_word;
  20        int err;
  21
  22        err = avc_audio_get_selector(bebob->unit, 0, 9, &enable_ext);
  23        if (err < 0)
  24                goto end;
  25        err = avc_audio_get_selector(bebob->unit, 0, 8, &enable_word);
  26        if (err < 0)
  27                goto end;
  28
  29        if (enable_ext == 0)
  30                *id = 0;
  31        else if (enable_word == 0)
  32                *id = 1;
  33        else
  34                *id = 2;
  35end:
  36        return err;
  37}
  38
  39static const struct snd_bebob_rate_spec phase_series_rate_spec = {
  40        .get    = &snd_bebob_stream_get_rate,
  41        .set    = &snd_bebob_stream_set_rate,
  42};
  43
  44/* PHASE 88 Rack FW */
  45static const struct snd_bebob_clock_spec phase88_rack_clk = {
  46        .num    = ARRAY_SIZE(phase88_rack_clk_src_types),
  47        .types  = phase88_rack_clk_src_types,
  48        .get    = &phase88_rack_clk_src_get,
  49};
  50const struct snd_bebob_spec phase88_rack_spec = {
  51        .clock  = &phase88_rack_clk,
  52        .rate   = &phase_series_rate_spec,
  53        .meter  = NULL
  54};
  55