root/sound/soc/codecs/da7219-aad.h
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * da7219-aad.h - DA7322 ASoC AAD Driver
 *
 * Copyright (c) 2015 Dialog Semiconductor Ltd.
 *
 * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
 */

#ifndef __DA7219_AAD_H
#define __DA7219_AAD_H

#include <linux/timer.h>
#include <linux/mutex.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <sound/da7219-aad.h>

/*
 * Registers
 */

#define DA7219_ACCDET_STATUS_A          0xC0
#define DA7219_ACCDET_STATUS_B          0xC1
#define DA7219_ACCDET_IRQ_EVENT_A       0xC2
#define DA7219_ACCDET_IRQ_EVENT_B       0xC3
#define DA7219_ACCDET_IRQ_MASK_A        0xC4
#define DA7219_ACCDET_IRQ_MASK_B        0xC5
#define DA7219_ACCDET_CONFIG_1          0xC6
#define DA7219_ACCDET_CONFIG_2          0xC7
#define DA7219_ACCDET_CONFIG_3          0xC8
#define DA7219_ACCDET_CONFIG_4          0xC9
#define DA7219_ACCDET_CONFIG_5          0xCA
#define DA7219_ACCDET_CONFIG_6          0xCB
#define DA7219_ACCDET_CONFIG_7          0xCC
#define DA7219_ACCDET_CONFIG_8          0xCD


/*
 * Bit Fields
 */

/* DA7219_ACCDET_STATUS_A = 0xC0 */
#define DA7219_JACK_INSERTION_STS_SHIFT 0
#define DA7219_JACK_INSERTION_STS_MASK  (0x1 << 0)
#define DA7219_JACK_TYPE_STS_SHIFT      1
#define DA7219_JACK_TYPE_STS_MASK       (0x1 << 1)
#define DA7219_JACK_PIN_ORDER_STS_SHIFT 2
#define DA7219_JACK_PIN_ORDER_STS_MASK  (0x1 << 2)
#define DA7219_MICBIAS_UP_STS_SHIFT     3
#define DA7219_MICBIAS_UP_STS_MASK      (0x1 << 3)

/* DA7219_ACCDET_STATUS_B = 0xC1 */
#define DA7219_BUTTON_TYPE_STS_SHIFT    0
#define DA7219_BUTTON_TYPE_STS_MASK     (0xFF << 0)

/* DA7219_ACCDET_IRQ_EVENT_A = 0xC2 */
#define DA7219_E_JACK_INSERTED_SHIFT            0
#define DA7219_E_JACK_INSERTED_MASK             (0x1 << 0)
#define DA7219_E_JACK_REMOVED_SHIFT             1
#define DA7219_E_JACK_REMOVED_MASK              (0x1 << 1)
#define DA7219_E_JACK_DETECT_COMPLETE_SHIFT     2
#define DA7219_E_JACK_DETECT_COMPLETE_MASK      (0x1 << 2)

/* DA7219_ACCDET_IRQ_EVENT_B = 0xC3 */
#define DA7219_E_BUTTON_A_PRESSED_SHIFT         0
#define DA7219_E_BUTTON_A_PRESSED_MASK          (0x1 << 0)
#define DA7219_E_BUTTON_B_PRESSED_SHIFT         1
#define DA7219_E_BUTTON_B_PRESSED_MASK          (0x1 << 1)
#define DA7219_E_BUTTON_C_PRESSED_SHIFT         2
#define DA7219_E_BUTTON_C_PRESSED_MASK          (0x1 << 2)
#define DA7219_E_BUTTON_D_PRESSED_SHIFT         3
#define DA7219_E_BUTTON_D_PRESSED_MASK          (0x1 << 3)
#define DA7219_E_BUTTON_D_RELEASED_SHIFT        4
#define DA7219_E_BUTTON_D_RELEASED_MASK         (0x1 << 4)
#define DA7219_E_BUTTON_C_RELEASED_SHIFT        5
#define DA7219_E_BUTTON_C_RELEASED_MASK         (0x1 << 5)
#define DA7219_E_BUTTON_B_RELEASED_SHIFT        6
#define DA7219_E_BUTTON_B_RELEASED_MASK         (0x1 << 6)
#define DA7219_E_BUTTON_A_RELEASED_SHIFT        7
#define DA7219_E_BUTTON_A_RELEASED_MASK         (0x1 << 7)

/* DA7219_ACCDET_IRQ_MASK_A = 0xC4 */
#define DA7219_M_JACK_INSERTED_SHIFT            0
#define DA7219_M_JACK_INSERTED_MASK             (0x1 << 0)
#define DA7219_M_JACK_REMOVED_SHIFT             1
#define DA7219_M_JACK_REMOVED_MASK              (0x1 << 1)
#define DA7219_M_JACK_DETECT_COMPLETE_SHIFT     2
#define DA7219_M_JACK_DETECT_COMPLETE_MASK      (0x1 << 2)

/* DA7219_ACCDET_IRQ_MASK_B = 0xC5 */
#define DA7219_M_BUTTON_A_PRESSED_SHIFT         0
#define DA7219_M_BUTTON_A_PRESSED_MASK          (0x1 << 0)
#define DA7219_M_BUTTON_B_PRESSED_SHIFT         1
#define DA7219_M_BUTTON_B_PRESSED_MASK          (0x1 << 1)
#define DA7219_M_BUTTON_C_PRESSED_SHIFT         2
#define DA7219_M_BUTTON_C_PRESSED_MASK          (0x1 << 2)
#define DA7219_M_BUTTON_D_PRESSED_SHIFT         3
#define DA7219_M_BUTTON_D_PRESSED_MASK          (0x1 << 3)
#define DA7219_M_BUTTON_D_RELEASED_SHIFT        4
#define DA7219_M_BUTTON_D_RELEASED_MASK         (0x1 << 4)
#define DA7219_M_BUTTON_C_RELEASED_SHIFT        5
#define DA7219_M_BUTTON_C_RELEASED_MASK         (0x1 << 5)
#define DA7219_M_BUTTON_B_RELEASED_SHIFT        6
#define DA7219_M_BUTTON_B_RELEASED_MASK         (0x1 << 6)
#define DA7219_M_BUTTON_A_RELEASED_SHIFT        7
#define DA7219_M_BUTTON_A_RELEASED_MASK         (0x1 << 7)

/* DA7219_ACCDET_CONFIG_1 = 0xC6 */
#define DA7219_ACCDET_EN_SHIFT          0
#define DA7219_ACCDET_EN_MASK           (0x1 << 0)
#define DA7219_BUTTON_CONFIG_SHIFT      1
#define DA7219_BUTTON_CONFIG_MASK       (0x7 << 1)
#define DA7219_MIC_DET_THRESH_SHIFT     4
#define DA7219_MIC_DET_THRESH_MASK      (0x3 << 4)
#define DA7219_JACK_TYPE_DET_EN_SHIFT   6
#define DA7219_JACK_TYPE_DET_EN_MASK    (0x1 << 6)
#define DA7219_PIN_ORDER_DET_EN_SHIFT   7
#define DA7219_PIN_ORDER_DET_EN_MASK    (0x1 << 7)

/* DA7219_ACCDET_CONFIG_2 = 0xC7 */
#define DA7219_ACCDET_PAUSE_SHIFT       0
#define DA7219_ACCDET_PAUSE_MASK        (0x1 << 0)
#define DA7219_JACKDET_DEBOUNCE_SHIFT   1
#define DA7219_JACKDET_DEBOUNCE_MASK    (0x7 << 1)
#define DA7219_JACK_DETECT_RATE_SHIFT   4
#define DA7219_JACK_DETECT_RATE_MASK    (0x3 << 4)
#define DA7219_JACKDET_REM_DEB_SHIFT    6
#define DA7219_JACKDET_REM_DEB_MASK     (0x3 << 6)

/* DA7219_ACCDET_CONFIG_3 = 0xC8 */
#define DA7219_A_D_BUTTON_THRESH_SHIFT  0
#define DA7219_A_D_BUTTON_THRESH_MASK   (0xFF << 0)

/* DA7219_ACCDET_CONFIG_4 = 0xC9 */
#define DA7219_D_B_BUTTON_THRESH_SHIFT  0
#define DA7219_D_B_BUTTON_THRESH_MASK   (0xFF << 0)

/* DA7219_ACCDET_CONFIG_5 = 0xCA */
#define DA7219_B_C_BUTTON_THRESH_SHIFT  0
#define DA7219_B_C_BUTTON_THRESH_MASK   (0xFF << 0)

/* DA7219_ACCDET_CONFIG_6 = 0xCB */
#define DA7219_C_MIC_BUTTON_THRESH_SHIFT        0
#define DA7219_C_MIC_BUTTON_THRESH_MASK         (0xFF << 0)

/* DA7219_ACCDET_CONFIG_7 = 0xCC */
#define DA7219_BUTTON_AVERAGE_SHIFT     0
#define DA7219_BUTTON_AVERAGE_MASK      (0x3 << 0)
#define DA7219_ADC_1_BIT_REPEAT_SHIFT   2
#define DA7219_ADC_1_BIT_REPEAT_MASK    (0x3 << 2)
#define DA7219_PIN_ORDER_FORCE_SHIFT    4
#define DA7219_PIN_ORDER_FORCE_MASK     (0x1 << 4)
#define DA7219_JACK_TYPE_FORCE_SHIFT    5
#define DA7219_JACK_TYPE_FORCE_MASK     (0x1 << 5)

/* DA7219_ACCDET_CONFIG_8 = 0xCD */
#define DA7219_HPTEST_EN_SHIFT          0
#define DA7219_HPTEST_EN_MASK           (0x1 << 0)
#define DA7219_HPTEST_RES_SEL_SHIFT     1
#define DA7219_HPTEST_RES_SEL_MASK      (0x3 << 1)
#define DA7219_HPTEST_RES_SEL_1KOHMS    (0x0 << 1)
#define DA7219_HPTEST_COMP_SHIFT        4
#define DA7219_HPTEST_COMP_MASK         (0x1 << 4)


#define DA7219_AAD_MAX_BUTTONS          4
#define DA7219_AAD_REPORT_ALL_MASK      (SND_JACK_MECHANICAL |                  \
                                         SND_JACK_HEADSET | SND_JACK_LINEOUT |  \
                                         SND_JACK_BTN_0 | SND_JACK_BTN_1 |      \
                                         SND_JACK_BTN_2 | SND_JACK_BTN_3)

#define DA7219_AAD_MICBIAS_CHK_DELAY    10
#define DA7219_AAD_MICBIAS_CHK_RETRIES  5

#define DA7219_AAD_HPTEST_RAMP_FREQ             0x28
#define DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC     0x4D
#define DA7219_AAD_HPTEST_PERIOD                65
#define DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY    20

enum da7219_aad_event_regs {
        DA7219_AAD_IRQ_REG_A = 0,
        DA7219_AAD_IRQ_REG_B,
        DA7219_AAD_IRQ_REG_MAX,
};

/* Private data */
struct da7219_aad_priv {
        struct snd_soc_component *component;
        int irq;
        int gnd_switch_delay;

        u8 micbias_pulse_lvl;
        u32 micbias_pulse_time;

        u8 btn_cfg;

        struct work_struct btn_det_work;
        struct work_struct hptest_work;
        struct delayed_work jack_det_work;
        struct workqueue_struct *aad_wq;

        struct snd_soc_jack *jack;
        bool micbias_resume_enable;
        bool jack_inserted;
};

/* AAD control */
void da7219_aad_jack_det(struct snd_soc_component *component, struct snd_soc_jack *jack);

/* Suspend/Resume */
void da7219_aad_suspend(struct snd_soc_component *component);
void da7219_aad_resume(struct snd_soc_component *component);

/* Init/Exit */
int da7219_aad_init(struct snd_soc_component *component);
void da7219_aad_exit(struct snd_soc_component *component);

/* I2C Probe */
int da7219_aad_probe(struct i2c_client *i2c);

#endif /* __DA7219_AAD_H */