LXR linux/sound/soc/tegra/tegra

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * tegra_pcm.h - Definitions for Tegra PCM driver
   4 *
   5 * Author: Stephen Warren <swarren@nvidia.com>
   6 * Copyright (C) 2010,2012 - NVIDIA, Inc.
   7 *
   8 * Based on code copyright/by:
   9 *
  10 * Copyright (c) 2009-2010, NVIDIA Corporation.
  11 * Scott Peterson <speterson@nvidia.com>
  12 *
  13 * Copyright (C) 2010 Google, Inc.
  14 * Iliyan Malchev <malchev@google.com>
  15 */
  16
  17#ifndef __TEGRA_PCM_H__
  18#define __TEGRA_PCM_H__
  19
  20#include <sound/dmaengine_pcm.h>
  21#include <sound/asound.h>
  22
  23int tegra_pcm_construct(struct snd_soc_component *component,
  24                        struct snd_soc_pcm_runtime *rtd);
  25int tegra_pcm_open(struct snd_soc_component *component,
  26                   struct snd_pcm_substream *substream);
  27int tegra_pcm_close(struct snd_soc_component *component,
  28                    struct snd_pcm_substream *substream);
  29int tegra_pcm_hw_params(struct snd_soc_component *component,
  30                        struct snd_pcm_substream *substream,
  31                        struct snd_pcm_hw_params *params);
  32snd_pcm_uframes_t tegra_pcm_pointer(struct snd_soc_component *component,
  33                                    struct snd_pcm_substream *substream);
  34int tegra_pcm_platform_register(struct device *dev);
  35int tegra_pcm_platform_register_with_chan_names(struct device *dev,
  36                                struct snd_dmaengine_pcm_config *config,
  37                                char *txdmachan, char *rxdmachan);
  38void tegra_pcm_platform_unregister(struct device *dev);
  39
  40#endif
  41