/* 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_ */