linux/sound/soc/sh/rcar/dvc.c

// SPDX-License-Identifier: GPL-2.0
//
// Renesas R-Car DVC support
//
// Copyright (C) 2014 Renesas Solutions Corp.
// Kuninori Morimoto <[email protected]>

/*
 * Playback Volume
 *	amixer set "DVC Out" 100%
 *
 * Capture Volume
 *	amixer set "DVC In" 100%
 *
 * Playback Mute
 *	amixer set "DVC Out Mute" on
 *
 * Capture Mute
 *	amixer set "DVC In Mute" on
 *
 * Volume Ramp
 *	amixer set "DVC Out Ramp Up Rate"   "0.125 dB/64 steps"
 *	amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps"
 *	amixer set "DVC Out Ramp" on
 *	aplay xxx.wav &
 *	amixer set "DVC Out"  80%  // Volume Down
 *	amixer set "DVC Out" 100%  // Volume Up
 */

#include "rsnd.h"

#define RSND_DVC_NAME_SIZE …

#define DVC_NAME …

struct rsnd_dvc { … };

#define rsnd_dvc_get(priv, id) …
#define rsnd_dvc_nr(priv) …

#define rsnd_mod_to_dvc(_mod) …

#define for_each_rsnd_dvc(pos, priv, i) …

static void rsnd_dvc_activation(struct rsnd_mod *mod)
{ … }

static void rsnd_dvc_halt(struct rsnd_mod *mod)
{ … }

#define rsnd_dvc_get_vrpdr(dvc) …
#define rsnd_dvc_get_vrdbr(dvc) …

static void rsnd_dvc_volume_parameter(struct rsnd_dai_stream *io,
					      struct rsnd_mod *mod)
{ … }

static void rsnd_dvc_volume_init(struct rsnd_dai_stream *io,
				 struct rsnd_mod *mod)
{ … }

static void rsnd_dvc_volume_update(struct rsnd_dai_stream *io,
				   struct rsnd_mod *mod)
{ … }

static int rsnd_dvc_probe_(struct rsnd_mod *mod,
			   struct rsnd_dai_stream *io,
			   struct rsnd_priv *priv)
{ … }

static int rsnd_dvc_init(struct rsnd_mod *mod,
			 struct rsnd_dai_stream *io,
			 struct rsnd_priv *priv)
{ … }

static int rsnd_dvc_quit(struct rsnd_mod *mod,
			 struct rsnd_dai_stream *io,
			 struct rsnd_priv *priv)
{ … }

static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
			    struct rsnd_dai_stream *io,
			    struct snd_soc_pcm_runtime *rtd)
{ … }

static struct dma_chan *rsnd_dvc_dma_req(struct rsnd_dai_stream *io,
					 struct rsnd_mod *mod)
{ … }

#ifdef CONFIG_DEBUG_FS
static void rsnd_dvc_debug_info(struct seq_file *m,
				struct rsnd_dai_stream *io,
				struct rsnd_mod *mod)
{ … }
#define DEBUG_INFO …
#else
#define DEBUG_INFO
#endif

static struct rsnd_mod_ops rsnd_dvc_ops = …;

struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id)
{ … }

int rsnd_dvc_probe(struct rsnd_priv *priv)
{ … }

void rsnd_dvc_remove(struct rsnd_priv *priv)
{ … }