/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2021 MediaTek Inc.
 * Author: Argus Lin <argus.lin@mediatek.com>
 */

#ifndef _ACCDET_H_
#define _ACCDET_H_

#include <linux/ctype.h>
#include <linux/string.h>

#define ACCDET_DEVNAME "accdet"

#define HEADSET_MODE_1          (1)
#define HEADSET_MODE_2          (2)
#define HEADSET_MODE_6          (6)

#define MT6359_ACCDET_NUM_BUTTONS 4
#define MT6359_ACCDET_JACK_MASK (SND_JACK_HEADPHONE | \
                                SND_JACK_HEADSET | \
                                SND_JACK_BTN_0 | \
                                SND_JACK_BTN_1 | \
                                SND_JACK_BTN_2 | \
                                SND_JACK_BTN_3)
#define MT6359_ACCDET_BTN_MASK (SND_JACK_BTN_0 | \
                                SND_JACK_BTN_1 | \
                                SND_JACK_BTN_2 | \
                                SND_JACK_BTN_3)

enum eint_moisture_status {
        M_PLUG_IN =             0,
        M_WATER_IN =            1,
        M_HP_PLUG_IN =          2,
        M_PLUG_OUT =            3,
        M_NO_ACT =              4,
        M_UNKNOWN =             5,
};

enum {
        accdet_state000 = 0,
        accdet_state001,
        accdet_state010,
        accdet_state011,
        accdet_auxadc,
        eint_state000,
        eint_state001,
        eint_state010,
        eint_state011,
        eint_inverter_state000,
};

struct three_key_threshold {
        unsigned int mid;
        unsigned int up;
        unsigned int down;
};

struct four_key_threshold {
        unsigned int mid;
        unsigned int voice;
        unsigned int up;
        unsigned int down;
};

struct pwm_deb_settings {
        unsigned int pwm_width;
        unsigned int pwm_thresh;
        unsigned int fall_delay;
        unsigned int rise_delay;
        unsigned int debounce0;
        unsigned int debounce1;
        unsigned int debounce3;
        unsigned int debounce4;
        unsigned int eint_pwm_width;
        unsigned int eint_pwm_thresh;
        unsigned int eint_debounce0;
        unsigned int eint_debounce1;
        unsigned int eint_debounce2;
        unsigned int eint_debounce3;
        unsigned int eint_inverter_debounce;

};

struct dts_data {
        unsigned int mic_vol;
        unsigned int mic_mode;
        unsigned int plugout_deb;
        unsigned int eint_pol;
        struct pwm_deb_settings *pwm_deb;
        struct three_key_threshold three_key;
        struct four_key_threshold four_key;
        unsigned int moisture_detect_enable;
        unsigned int eint_detect_mode;
        unsigned int eint_use_ext_res;
        unsigned int eint_comp_vth;
        unsigned int moisture_detect_mode;
        unsigned int moisture_comp_vth;
        unsigned int moisture_comp_vref2;
        unsigned int moisture_use_ext_res;
};

struct mt6359_accdet {
        struct snd_soc_jack *jack;
        struct device *dev;
        struct regmap *regmap;
        struct dts_data *data;
        unsigned int caps;
        int accdet_irq;
        int accdet_eint0;
        int accdet_eint1;
        struct mutex res_lock; /* lock protection */
        bool jack_plugged;
        unsigned int jack_type;
        unsigned int btn_type;
        unsigned int accdet_status;
        unsigned int pre_accdet_status;
        unsigned int cali_voltage;
        unsigned int jd_sts;
        struct work_struct accdet_work;
        struct workqueue_struct *accdet_workqueue;
        struct work_struct jd_work;
        struct workqueue_struct *jd_workqueue;
};

#if IS_ENABLED(CONFIG_SND_SOC_MT6359_ACCDET)
int mt6359_accdet_enable_jack_detect(struct snd_soc_component *component,
                                     struct snd_soc_jack *jack);
#else
static inline int
mt6359_accdet_enable_jack_detect(struct snd_soc_component *component,
                                 struct snd_soc_jack *jack)
{
        return -EOPNOTSUPP;
}
#endif
#endif