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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* ADXL313 3-Axis Digital Accelerometer
*
* Copyright (c) 2021 Lucas Stankus <lucas.p.stankus@gmail.com>
*/
#ifndef _ADXL313_H_
#define _ADXL313_H_
#include <linux/iio/iio.h>
/* ADXL313 register definitions */
#define ADXL313_REG_DEVID0 0x00
#define ADXL313_REG_DEVID1 0x01
#define ADXL313_REG_PARTID 0x02
#define ADXL313_REG_XID 0x04
#define ADXL313_REG_SOFT_RESET 0x18
#define ADXL313_REG_OFS_AXIS(index) (0x1E + (index))
#define ADXL313_REG_THRESH_ACT 0x24
#define ADXL313_REG_ACT_INACT_CTL 0x27
#define ADXL313_REG_BW_RATE 0x2C
#define ADXL313_REG_POWER_CTL 0x2D
#define ADXL313_REG_INT_MAP 0x2F
#define ADXL313_REG_DATA_FORMAT 0x31
#define ADXL313_REG_DATA_AXIS(index) (0x32 + ((index) * 2))
#define ADXL313_REG_FIFO_CTL 0x38
#define ADXL313_REG_FIFO_STATUS 0x39
#define ADXL313_DEVID0 0xAD
#define ADXL313_DEVID0_ADXL312_314 0xE5
#define ADXL313_DEVID1 0x1D
#define ADXL313_PARTID 0xCB
#define ADXL313_SOFT_RESET 0x52
#define ADXL313_RATE_MSK GENMASK(3, 0)
#define ADXL313_RATE_BASE 6
#define ADXL313_POWER_CTL_MSK GENMASK(3, 2)
#define ADXL313_MEASUREMENT_MODE BIT(3)
#define ADXL313_RANGE_MSK GENMASK(1, 0)
#define ADXL313_RANGE_MAX 3
#define ADXL313_FULL_RES BIT(3)
#define ADXL313_SPI_3WIRE BIT(6)
#define ADXL313_I2C_DISABLE BIT(6)
extern const struct regmap_access_table adxl312_readable_regs_table;
extern const struct regmap_access_table adxl313_readable_regs_table;
extern const struct regmap_access_table adxl314_readable_regs_table;
extern const struct regmap_access_table adxl312_writable_regs_table;
extern const struct regmap_access_table adxl313_writable_regs_table;
extern const struct regmap_access_table adxl314_writable_regs_table;
enum adxl313_device_type {
ADXL312,
ADXL313,
ADXL314,
};
struct adxl313_data {
struct regmap *regmap;
const struct adxl313_chip_info *chip_info;
struct mutex lock; /* lock to protect transf_buf */
__le16 transf_buf __aligned(IIO_DMA_MINALIGN);
};
struct adxl313_chip_info {
const char *name;
enum adxl313_device_type type;
int scale_factor;
bool variable_range;
bool soft_reset;
int (*check_id)(struct device *dev, struct adxl313_data *data);
};
extern const struct adxl313_chip_info adxl31x_chip_info[];
int adxl313_core_probe(struct device *dev,
struct regmap *regmap,
const struct adxl313_chip_info *chip_info,
int (*setup)(struct device *, struct regmap *));
#endif /* _ADXL313_H_ */
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