/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2022 ROHM Semiconductors
 *
 * ROHM/KIONIX KX022A accelerometer driver
 */

#ifndef _KX022A_H_
#define _KX022A_H_

#include <linux/bits.h>
#include <linux/regmap.h>

#define KX022A_REG_WHO          0x0f
#define KX022A_ID               0xc8
#define KX132ACR_LBZ_ID         0xd8
#define KX134ACR_LBZ_ID         0xcc

#define KX022A_REG_CNTL2        0x19
#define KX022A_MASK_SRST        BIT(7)
#define KX022A_REG_CNTL         0x18
#define KX022A_MASK_PC1         BIT(7)
#define KX022A_MASK_RES         BIT(6)
#define KX022A_MASK_DRDY        BIT(5)
#define KX022A_MASK_GSEL        GENMASK(4, 3)
#define KX022A_GSEL_SHIFT       3
#define KX022A_GSEL_2           0x0
#define KX022A_GSEL_4           BIT(3)
#define KX022A_GSEL_8           BIT(4)
#define KX022A_GSEL_16          GENMASK(4, 3)

#define KX022A_REG_INS2         0x13
#define KX022A_MASK_INS2_DRDY   BIT(4)
#define KX122_MASK_INS2_WMI     BIT(5)

#define KX022A_REG_XHP_L        0x0
#define KX022A_REG_XOUT_L       0x06
#define KX022A_REG_YOUT_L       0x08
#define KX022A_REG_ZOUT_L       0x0a
#define KX022A_REG_COTR         0x0c
#define KX022A_REG_TSCP         0x10
#define KX022A_REG_INT_REL      0x17

#define KX022A_REG_ODCNTL       0x1b

#define KX022A_REG_BTS_WUF_TH   0x31
#define KX022A_REG_MAN_WAKE     0x2c

#define KX022A_REG_BUF_CNTL1    0x3a
#define KX022A_MASK_WM_TH       GENMASK(6, 0)
#define KX022A_REG_BUF_CNTL2    0x3b
#define KX022A_MASK_BUF_EN      BIT(7)
#define KX022A_MASK_BRES16      BIT(6)
#define KX022A_REG_BUF_STATUS_1 0x3c
#define KX022A_REG_BUF_STATUS_2 0x3d
#define KX022A_REG_BUF_CLEAR    0x3e
#define KX022A_REG_BUF_READ     0x3f
#define KX022A_MASK_ODR         GENMASK(3, 0)
#define KX022A_ODR_SHIFT        3
#define KX022A_FIFO_MAX_WMI_TH  41

#define KX022A_REG_INC1         0x1c
#define KX022A_REG_INC5         0x20
#define KX022A_REG_INC6         0x21
#define KX022A_MASK_IEN         BIT(5)
#define KX022A_MASK_IPOL        BIT(4)
#define KX022A_IPOL_LOW         0
#define KX022A_IPOL_HIGH        KX022A_MASK_IPOL1
#define KX022A_MASK_ITYP        BIT(3)
#define KX022A_ITYP_PULSE       KX022A_MASK_ITYP
#define KX022A_ITYP_LEVEL       0

#define KX022A_REG_INC4         0x1f
#define KX022A_MASK_WMI         BIT(5)

#define KX022A_REG_SELF_TEST    0x60
#define KX022A_MAX_REGISTER     0x60

#define KX132_REG_WHO           0x13
#define KX132_ID                0x3d
#define KX134_1211_ID           0x46

#define KX132_FIFO_LENGTH       86

#define KX132_REG_CNTL          0x1b
#define KX132_REG_CNTL2         0x1c
#define KX132_REG_CNTL5         0x1f
#define KX132_MASK_RES          BIT(6)
#define KX132_GSEL_2            0x0
#define KX132_GSEL_4            BIT(3)
#define KX132_GSEL_8            BIT(4)
#define KX132_GSEL_16           GENMASK(4, 3)

#define KX132_REG_INS2          0x17
#define KX132_MASK_INS2_WMI     BIT(5)

#define KX132_REG_XADP_L        0x02
#define KX132_REG_XOUT_L        0x08
#define KX132_REG_YOUT_L        0x0a
#define KX132_REG_ZOUT_L        0x0c
#define KX132_REG_COTR          0x12
#define KX132_REG_TSCP          0x14
#define KX132_REG_INT_REL       0x1a

#define KX132_REG_ODCNTL        0x21

#define KX132_REG_BTS_WUF_TH    0x4a

#define KX132_REG_BUF_CNTL1     0x5e
#define KX132_REG_BUF_CNTL2     0x5f
#define KX132_REG_BUF_STATUS_1  0x60
#define KX132_REG_BUF_STATUS_2  0x61
#define KX132_MASK_BUF_SMP_LVL  GENMASK(9, 0)
#define KX132_REG_BUF_CLEAR     0x62
#define KX132_REG_BUF_READ      0x63
#define KX132_ODR_SHIFT         3
#define KX132_FIFO_MAX_WMI_TH   86

#define KX132_REG_INC1          0x22
#define KX132_REG_INC5          0x26
#define KX132_REG_INC6          0x27
#define KX132_IPOL_LOW          0
#define KX132_IPOL_HIGH         KX022A_MASK_IPOL
#define KX132_ITYP_PULSE        KX022A_MASK_ITYP

#define KX132_REG_INC4          0x25

#define KX132_REG_SELF_TEST     0x5d
#define KX132_MAX_REGISTER      0x76

struct device;

struct kx022a_data;

/**
 * struct kx022a_chip_info - Kionix accelerometer chip specific information
 *
 * @name:                       name of the device
 * @regmap_config:              pointer to register map configuration
 * @scale_table:                An array of tables of scaling factors for
 *                              a supported acceleration measurement range.
 *                              Each table containing a single scaling
 *                              factor consisting of two integers. The first
 *                              value in a table is the integer part, and
 *                              the second value is the fractional part as
 *                              parts per billion.
 * @scale_table_size:           Amount of values in tables.
 * @channels:                   pointer to iio_chan_spec array
 * @num_channels:               number of iio_chan_spec channels
 * @fifo_length:                number of 16-bit samples in a full buffer
 * @buf_smp_lvl_mask:           buffer sample level mask
 * @who:                        WHO_AM_I register
 * @id:                         WHO_AM_I register value
 * @cntl:                       control register 1
 * @cntl2:                      control register 2
 * @odcntl:                     output data control register
 * @buf_cntl1:                  buffer control register 1
 * @buf_cntl2:                  buffer control register 2
 * @buf_clear:                  buffer clear register
 * @buf_status1:                buffer status register 1
 * @buf_read:                   buffer read register
 * @inc1:                       interrupt control register 1
 * @inc4:                       interrupt control register 4
 * @inc5:                       interrupt control register 5
 * @inc6:                       interrupt control register 6
 * @xout_l:                     x-axis output least significant byte
 * @get_fifo_bytes_available:   function pointer to get amount of acceleration
 *                              data bytes currently stored in the sensor's FIFO
 *                              buffer
 */
struct kx022a_chip_info {
        const char *name;
        const struct regmap_config *regmap_config;
        const int (*scale_table)[2];
        const int scale_table_size;
        const struct iio_chan_spec *channels;
        unsigned int num_channels;
        unsigned int fifo_length;
        u16 buf_smp_lvl_mask;
        u8 who;
        u8 id;
        u8 cntl;
        u8 cntl2;
        u8 odcntl;
        u8 buf_cntl1;
        u8 buf_cntl2;
        u8 buf_clear;
        u8 buf_status1;
        u8 buf_read;
        u8 inc1;
        u8 inc4;
        u8 inc5;
        u8 inc6;
        u8 xout_l;
        int (*get_fifo_bytes_available)(struct kx022a_data *);
};

int kx022a_probe_internal(struct device *dev, const struct kx022a_chip_info *chip_info);

extern const struct kx022a_chip_info kx022a_chip_info;
extern const struct kx022a_chip_info kx132_chip_info;
extern const struct kx022a_chip_info kx134_chip_info;
extern const struct kx022a_chip_info kx132acr_chip_info;
extern const struct kx022a_chip_info kx134acr_chip_info;

#endif