// SPDX-License-Identifier: GPL-2.0-only /* * ADXL355 3-Axis Digital Accelerometer IIO core driver * * Copyright (c) 2021 Puranjay Mohan <[email protected]> * * Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/adxl354_adxl355.pdf */ #include <linux/bits.h> #include <linux/bitfield.h> #include <linux/iio/buffer.h> #include <linux/iio/iio.h> #include <linux/iio/trigger.h> #include <linux/iio/triggered_buffer.h> #include <linux/iio/trigger_consumer.h> #include <linux/limits.h> #include <linux/math64.h> #include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/property.h> #include <linux/regmap.h> #include <linux/units.h> #include <linux/unaligned.h> #include "adxl355.h" /* ADXL355 Register Definitions */ #define ADXL355_DEVID_AD_REG … #define ADXL355_DEVID_MST_REG … #define ADXL355_PARTID_REG … #define ADXL355_STATUS_REG … #define ADXL355_FIFO_ENTRIES_REG … #define ADXL355_TEMP2_REG … #define ADXL355_XDATA3_REG … #define ADXL355_YDATA3_REG … #define ADXL355_ZDATA3_REG … #define ADXL355_FIFO_DATA_REG … #define ADXL355_OFFSET_X_H_REG … #define ADXL355_OFFSET_Y_H_REG … #define ADXL355_OFFSET_Z_H_REG … #define ADXL355_ACT_EN_REG … #define ADXL355_ACT_THRESH_H_REG … #define ADXL355_ACT_THRESH_L_REG … #define ADXL355_ACT_COUNT_REG … #define ADXL355_FILTER_REG … #define ADXL355_FILTER_ODR_MSK … #define ADXL355_FILTER_HPF_MSK … #define ADXL355_FIFO_SAMPLES_REG … #define ADXL355_INT_MAP_REG … #define ADXL355_SYNC_REG … #define ADXL355_RANGE_REG … #define ADXL355_POWER_CTL_REG … #define ADXL355_POWER_CTL_MODE_MSK … #define ADXL355_POWER_CTL_DRDY_MSK … #define ADXL355_SELF_TEST_REG … #define ADXL355_RESET_REG … #define ADXL355_DEVID_AD_VAL … #define ADXL355_DEVID_MST_VAL … #define ADXL355_PARTID_VAL … #define ADXL359_PARTID_VAL … #define ADXL355_RESET_CODE … static const struct regmap_range adxl355_read_reg_range[] = …; const struct regmap_access_table adxl355_readable_regs_tbl = …; EXPORT_SYMBOL_NS_GPL(…); static const struct regmap_range adxl355_write_reg_range[] = …; const struct regmap_access_table adxl355_writeable_regs_tbl = …; EXPORT_SYMBOL_NS_GPL(…); const struct adxl355_chip_info adxl35x_chip_info[] = …; EXPORT_SYMBOL_NS_GPL(…); enum adxl355_op_mode { … }; enum adxl355_odr { … }; enum adxl355_hpf_3db { … }; static const int adxl355_odr_table[][2] = …; static const int adxl355_hpf_3db_multipliers[] = …; enum adxl355_chans { … }; struct adxl355_chan_info { … }; static const struct adxl355_chan_info adxl355_chans[] = …; struct adxl355_data { … }; static int adxl355_set_op_mode(struct adxl355_data *data, enum adxl355_op_mode op_mode) { … } static int adxl355_data_rdy_trigger_set_state(struct iio_trigger *trig, bool state) { … } static void adxl355_fill_3db_frequency_table(struct adxl355_data *data) { … } static int adxl355_setup(struct adxl355_data *data) { … } static int adxl355_get_temp_data(struct adxl355_data *data, u8 addr) { … } static int adxl355_read_axis(struct adxl355_data *data, u8 addr) { … } static int adxl355_find_match(const int (*freq_tbl)[2], const int n, const int val, const int val2) { … } static int adxl355_set_odr(struct adxl355_data *data, enum adxl355_odr odr) { … } static int adxl355_set_hpf_3db(struct adxl355_data *data, enum adxl355_hpf_3db hpf) { … } static int adxl355_set_calibbias(struct adxl355_data *data, enum adxl355_chans chan, int calibbias) { … } static int adxl355_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { … } static int adxl355_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long mask) { … } static int adxl355_read_avail(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, const int **vals, int *type, int *length, long mask) { … } static const unsigned long adxl355_avail_scan_masks[] = …; static const struct iio_info adxl355_info = …; static const struct iio_trigger_ops adxl355_trigger_ops = …; static irqreturn_t adxl355_trigger_handler(int irq, void *p) { … } #define ADXL355_ACCEL_CHANNEL(index, reg, axis) … static const struct iio_chan_spec adxl355_channels[] = …; static int adxl355_probe_trigger(struct iio_dev *indio_dev, int irq) { … } int adxl355_core_probe(struct device *dev, struct regmap *regmap, const struct adxl355_chip_info *chip_info) { … } EXPORT_SYMBOL_NS_GPL(…); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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