linux/sound/soc/codecs/wl1273.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * ALSA SoC WL1273 codec driver
 *
 * Author:      Matti Aaltonen, <[email protected]>
 *
 * Copyright:   (C) 2010, 2011 Nokia Corporation
 */

#include <linux/mfd/wl1273-core.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/initval.h>

#include "wl1273.h"

enum wl1273_mode { … };

/* codec private data */
struct wl1273_priv { … };

static int snd_wl1273_fm_set_i2s_mode(struct wl1273_core *core,
				      int rate, int width)
{ … }

static int snd_wl1273_fm_set_channel_number(struct wl1273_core *core,
					    int channel_number)
{ … }

static int snd_wl1273_get_audio_route(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{ … }

/*
 * TODO: Implement the audio routing in the driver. Now this control
 * only indicates the setting that has been done elsewhere (in the user
 * space).
 */
static const char * const wl1273_audio_route[] = …;

static int snd_wl1273_set_audio_route(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{ … }

static SOC_ENUM_SINGLE_EXT_DECL(wl1273_enum, wl1273_audio_route);

static int snd_wl1273_fm_audio_get(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{ … }

static int snd_wl1273_fm_audio_put(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{ … }

static const char * const wl1273_audio_strings[] = …;

static SOC_ENUM_SINGLE_EXT_DECL(wl1273_audio_enum, wl1273_audio_strings);

static int snd_wl1273_fm_volume_get(struct snd_kcontrol *kcontrol,
				    struct snd_ctl_elem_value *ucontrol)
{ … }

static int snd_wl1273_fm_volume_put(struct snd_kcontrol *kcontrol,
				    struct snd_ctl_elem_value *ucontrol)
{ … }

static const struct snd_kcontrol_new wl1273_controls[] = …;

static const struct snd_soc_dapm_widget wl1273_dapm_widgets[] = …;

static const struct snd_soc_dapm_route wl1273_dapm_routes[] = …;

static int wl1273_startup(struct snd_pcm_substream *substream,
			  struct snd_soc_dai *dai)
{ … }

static int wl1273_hw_params(struct snd_pcm_substream *substream,
			    struct snd_pcm_hw_params *params,
			    struct snd_soc_dai *dai)
{ … }

static const struct snd_soc_dai_ops wl1273_dai_ops = …;

static struct snd_soc_dai_driver wl1273_dai = …;

/* Audio interface format for the soc_card driver */
int wl1273_get_format(struct snd_soc_component *component, unsigned int *fmt)
{ … }
EXPORT_SYMBOL_GPL(…);

static int wl1273_probe(struct snd_soc_component *component)
{ … }

static void wl1273_remove(struct snd_soc_component *component)
{ … }

static const struct snd_soc_component_driver soc_component_dev_wl1273 = …;

static int wl1273_platform_probe(struct platform_device *pdev)
{ … }

MODULE_ALIAS(…) …;

static struct platform_driver wl1273_platform_driver = …;

module_platform_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;