drivers/media/pci/cobalt/cobalt-alsa.h

   1 /*
   2  *  ALSA interface to cobalt PCM capture streams
   3  *
   4  *  Copyright 2014-2015 Cisco Systems, Inc. and/or its affiliates.
   5  *  All rights reserved.
   6  *
   7  *  This program is free software; you may redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; version 2 of the License.
  10  *
  11  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  12  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  13  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  14  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  15  *  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  16  *  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  17  *  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  18  *  SOFTWARE.
  19  */
  20
  21 struct snd_card;
  22
  23 struct snd_cobalt_card {
  24         struct cobalt_stream *s;
  25         struct snd_card *sc;
  26         unsigned int capture_transfer_done;
  27         unsigned int hwptr_done_capture;
  28         unsigned alsa_record_cnt;
  29         struct snd_pcm_substream *capture_pcm_substream;
  30
  31         unsigned int pb_size;
  32         unsigned int pb_count;
  33         unsigned int pb_pos;
  34         unsigned pb_filled;
  35         bool alsa_pb_channel;
  36         unsigned alsa_playback_cnt;
  37         struct snd_pcm_substream *playback_pcm_substream;
  38 };
  39
  40 int cobalt_alsa_init(struct cobalt_stream *s);
  41 void cobalt_alsa_exit(struct cobalt_stream *s);