86 строки
2.4 KiB
C
86 строки
2.4 KiB
C
/* 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_ */
|