path: root/sound/soc/codecs/88pm860x-codec.c

/*
 * 88pm860x-codec.c -- 88PM860x ALSA SoC Audio Driver
 *
 * Copyright 2010 Marvell International Ltd.
 * Author: Haojian Zhuang <haojian.zhuang@marvell.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/mfd/88pm860x.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include <sound/initval.h>
#include <sound/jack.h>
#include <trace/events/asoc.h>

#include "88pm860x-codec.h"

#define MAX_NAME_LEN		20
#define REG_CACHE_SIZE		0x40
#define REG_CACHE_BASE		0xb0

/* Status Register 1 (0x01) */
#define REG_STATUS_1		0x01
#define MIC_STATUS		(1 << 7)
#define HOOK_STATUS		(1 << 6)
#define HEADSET_STATUS		(1 << 5)

/* Mic Detection Register (0x37) */
#define REG_MIC_DET		0x37
#define CONTINUOUS_POLLING	(3 << 1)
#define EN_MIC_DET		(1 << 0)
#define MICDET_MASK		0x07

/* Headset Detection Register (0x38) */
#define REG_HS_DET		0x38
#define EN_HS_DET		(1 << 0)

/* Misc2 Register (0x42) */
#define REG_MISC2		0x42
#define AUDIO_PLL		(1 << 5)
#define AUDIO_SECTION_RESET	(1 << 4)
#define AUDIO_SECTION_ON	(1 << 3)

/* PCM Interface Register 2 (0xb1) */
#define PCM_INF2_BCLK		(1 << 6)	/* Bit clock polarity */
#define PCM_INF2_FS		(1 << 5)	/* Frame Sync polarity */
#define PCM_INF2_MASTER		(1 << 4)	/* Master / Slave */
#define PCM_INF2_18WL		(1 << 3)	/* 18 / 16 bits */
#define PCM_GENERAL_I2S		0
#define PCM_EXACT_I2S		1
#define PCM_LEFT_I2S		2
#define PCM_RIGHT_I2S		3
#define PCM_SHORT_FS		4
#define PCM_LONG_FS		5
#define PCM_MODE_MASK		7

/* I2S Interface Register 4 (0xbe) */
#define I2S_EQU_BYP		(1 << 6)

/* DAC Offset Register (0xcb) */
#define DAC_MUTE		(1 << 7)
#define MUTE_LEFT		(1 << 6)
#define MUTE_RIGHT		(1 << 2)

/* ADC Analog Register 1 (0xd0) */
#define REG_ADC_ANA_1		0xd0
#define MIC1BIAS_MASK		0x60

/* Earpiece/Speaker Control Register 2 (0xda) */
#define REG_EAR2		0xda
#define RSYNC_CHANGE		(1 << 2)

/* Audio Supplies Register 2 (0xdc) */
#define REG_SUPPLIES2		0xdc
#define LDO15_READY		(1 << 4)
#define LDO15_EN		(1 << 3)
#define CPUMP_READY		(1 << 2)
#define CPUMP_EN		(1 << 1)
#define AUDIO_EN		(1 << 0)
#define SUPPLY_MASK		(LDO15_EN | CPUMP_EN | AUDIO_EN)

/* Audio Enable Register 1 (0xdd) */
#define ADC_MOD_RIGHT		(1 << 1)
#define ADC_MOD_LEFT		(1 << 0)

/* Audio Enable Register 2 (0xde) */
#define ADC_LEFT		(1 << 5)
#define ADC_RIGHT		(1 << 4)

/* DAC Enable Register 2 (0xe1) */
#define DAC_LEFT		(1 << 5)
#define DAC_RIGHT		(1 << 4)
#define MODULATOR		(1 << 3)

/* Shorts Register (0xeb) */
#define REG_SHORTS		0xeb
#define CLR_SHORT_LO2		(1 << 7)
#define SHORT_LO2		(1 << 6)
#define CLR_SHORT_LO1		(1 << 5)
#define SHORT_LO1		(1 << 4)
#define CLR_SHORT_HS2		(1 << 3)
#define SHORT_HS2		(1 << 2)
#define CLR_SHORT_HS1		(1 << 1)
#define SHORT_HS1		(1 << 0)

/*
 * This widget should be just after DAC & PGA in DAPM power-on sequence and
 * before DAC & PGA in DAPM power-off sequence.
 */
#define PM860X_DAPM_OUTPUT(wname, wevent)	\
	SND_SOC_DAPM_PGA_E(wname, SND_SOC_NOPM, 0, 0, NULL, 0, wevent, \
			    SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD)

struct pm860x_det {
	struct snd_soc_jack<