path: root/sound/soc/codecs/alc5632.c

// SPDX-License-Identifier: GPL-2.0-only
/*
* alc5632.c  --  ALC5632 ALSA SoC Audio Codec
*
* Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
*
* Authors:  Leon Romanovsky <leon@leon.nu>
*           Andrey Danin <danindrey@mail.ru>
*           Ilya Petrov <ilya.muromec@gmail.com>
*           Marc Dietrich <marvin24@gmx.de>
*
* Based on alc5623.c by Arnaud Patard
*/

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>
#include <sound/soc.h>
#include <sound/initval.h>

#include "alc5632.h"

/*
 * ALC5632 register cache
 */
static const struct reg_default alc5632_reg_defaults[] = {
	{   2, 0x8080 },	/* R2   - Speaker Output Volume */
	{   4, 0x8080 },	/* R4   - Headphone Output Volume */
	{   6, 0x8080 },	/* R6   - AUXOUT Volume */
	{   8, 0xC800 },	/* R8   - Phone Input */
	{  10, 0xE808 },	/* R10  - LINE_IN Volume */
	{  12, 0x1010 },	/* R12  - STEREO DAC Input Volume */
	{  14, 0x0808 },	/* R14  - MIC Input Volume */
	{  16, 0xEE0F },	/* R16  - Stereo DAC and MIC Routing Control */
	{  18, 0xCBCB },	/* R18  - ADC Record Gain */
	{  20, 0x7F7F },	/* R20  - ADC Record Mixer Control */
	{  24, 0xE010 },	/* R24  - Voice DAC Volume */
	{  28, 0x8008 },	/* R28  - Output Mixer Control */
	{  34, 0x0000 },	/* R34  - Microphone Control */
	{  36, 0x00C0 },    /* R36  - Codec Digital MIC/Digital Boost
						   Control */
	{  46, 0x0000 },	/* R46  - Stereo DAC/Voice DAC/Stereo ADC
						   Function Select */
	{  52, 0x8000 },	/* R52  - Main Serial Data Port Control
						   (Stereo I2S) */
	{  54, 0x0000 },	/* R54  - Extend Serial Data Port Control
						   (VoDAC_I2S/PCM) */
	{  58, 0x0000 },	/* R58  - Power Management Addition 1 */
	{  60, 0x0000 },	/* R60  - Power Management Addition 2 */
	{  62, 0x8000 },	/* R62  - Power Management Addition 3 */
	{  64, 0x0C0A },	/* R64  - General Purpose Control Register 1 */
	{  66, 0x0000 },	/* R66  - General Purpose Control Register 2 */
	{  68, 0x0000 },	/* R68  - PLL1 Control */
	{  70, 0x0000 },	/* R70  - PLL2 Control */
	{  76, 0xBE3E },	/* R76  - GPIO Pin Configuration */
	{  78, 0xBE3E },	/* R78  - GPIO Pin Polarity */
	{  80, 0x0000 },	/* R80  - GPIO Pin Sticky */
	{  82, 0x0000 },	/* R82  - GPIO Pin Wake Up */
	{  86, 0x0000 },	/* R86  - Pin Sharing */
	{  90, 0x0009 },	/* R90  - Soft Volume Control Setting */
	{  92, 0x0000 },	/* R92  - GPIO_Output Pin Control */
	{  94, 0x3000 },	/* R94  - MISC Control */
	{  96, 0x3075 },	/* R96  - Stereo DAC Clock Control_1 */
	{  98, 0x1010 },	/* R98  - Stereo DAC Clock Control_2 */
	{ 100, 0x3110 },	/* R100 - VoDAC_PCM Clock Control_1 */
	{ 104, 0x0553 },	/* R104 - Pseudo Stereo and Spatial Effect
						   Block Control */
	{ 106, 0x0000 },	/* R106 - Private Register Address */
};

/* codec private data */
struct alc5632_priv {
	struct regmap *regmap;
	u8 id;
	unsigned int sysclk;
};

static bool alc5632_volatile_register(struct device *dev,
							unsigned int reg)
{
	switch (reg) {
	case ALC5632_RESET:
	case ALC5632_PWR_DOWN_CTRL_STATUS:
	case ALC5632_GPIO_PIN_STATUS:
	case ALC5632_OVER_CURR_STATUS:
	case ALC5632_HID_CTRL_DATA:
	case ALC5632_EQ_CTRL:
	case ALC5632_VENDOR_ID1:
	case ALC5632_VENDOR_ID2:
		return true;

	default:
		break;
	}

	return false;
}

static inline int alc5632_reset(struct regmap *map)
{
	return regmap_write(map, ALC5632_RESET, 0x59B4);
}

static int amp_mixer_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);

	/* to power-on/off class-d amp generators/speaker */
	/* need to write to 'index-46h' register :        */
	/* so write index num (here 0x46) to reg 0x6a     */
	/* and then 0xffff/0 to reg 0x6c                  */
	snd_soc_component_write(component, ALC5632_HID_CTRL_INDEX, 0x46);

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
		snd_soc_component_write(component, ALC5632_HID_CTRL_DATA, 0xFFFF);
		break;
	case SND_SOC_DAPM_POST_PMD:
		snd_soc_component_write(component, ALC5632_HID_CTRL_DATA, 0);
		break;
	}

	return 0;
}

/*
 * ALC5632 Controls
 */

/* -34.5db min scale, 1.5db steps, no mute */
static const DECLARE_TLV_DB_SCALE(vol_tlv, -3450, 150, 0);