linux/sound/soc/codecs/max9759.c

// SPDX-License-Identifier: GPL-2.0
/*
 * MAX9759 Amplifier Driver
 *
 * Copyright (c) 2017 BayLibre, SAS.
 * Author: Neil Armstrong <[email protected]>
 */

#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/tlv.h>

#define DRV_NAME …

struct max9759 { … };

static int pga_event(struct snd_soc_dapm_widget *w,
		     struct snd_kcontrol *control, int event)
{ … }

/* From 6dB to 24dB in steps of 6dB */
static const DECLARE_TLV_DB_SCALE(speaker_gain_tlv, 600, 600, 0);

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

static const bool speaker_gain_table[4][2] = …;

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

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

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

static const struct snd_kcontrol_new max9759_dapm_controls[] = …;

static const struct snd_soc_dapm_widget max9759_dapm_widgets[] = …;

static const struct snd_soc_dapm_route max9759_dapm_routes[] = …;

static const struct snd_soc_component_driver max9759_component_driver = …;

static int max9759_probe(struct platform_device *pdev)
{ … }

#ifdef CONFIG_OF
static const struct of_device_id max9759_ids[] = …;
MODULE_DEVICE_TABLE(of, max9759_ids);
#endif

static struct platform_driver max9759_driver = …;

module_platform_driver(…) …;

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