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

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *  ALSA interface to cobalt PCM capture streams
   4  *
   5  *  Copyright 2014-2015 Cisco Systems, Inc. and/or its affiliates.
   6  *  All rights reserved.
   7  */
   8
   9 struct snd_card;
  10
  11 struct snd_cobalt_card {
  12         struct cobalt_stream *s;
  13         struct snd_card *sc;
  14         unsigned int capture_transfer_done;
  15         unsigned int hwptr_done_capture;
  16         unsigned alsa_record_cnt;
  17         struct snd_pcm_substream *capture_pcm_substream;
  18
  19         unsigned int pb_size;
  20         unsigned int pb_count;
  21         unsigned int pb_pos;
  22         unsigned pb_filled;
  23         bool alsa_pb_channel;
  24         unsigned alsa_playback_cnt;
  25         struct snd_pcm_substream *playback_pcm_substream;
  26 };
  27
  28 int cobalt_alsa_init(struct cobalt_stream *s);
  29 void cobalt_alsa_exit(struct cobalt_stream *s);