sound/firewire/bebob/bebob_terratec.c

   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
  11 static const 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 };
  16 static int
  17 phase88_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;
  35 end:
  36         return err;
  37 }
  38
  39 static 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 */
  45 static 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 };
  50 const struct snd_bebob_spec phase88_rack_spec = {
  51         .clock  = &phase88_rack_clk,
  52         .rate   = &phase_series_rate_spec,
  53         .meter  = NULL
  54 };