// SPDX-License-Identifier: GPL-2.0 /* * 3-axis accelerometer driver supporting following Bosch-Sensortec chips: * - BMI088 * - BMI085 * - BMI090L * * Copyright (c) 2018-2021, Topic Embedded Products */ #include <linux/bitfield.h> #include <linux/delay.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #include <linux/interrupt.h> #include <linux/module.h> #include <linux/pm.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/slab.h> #include <asm/unaligned.h> #include "bmi088-accel.h" #define BMI088_ACCEL_REG_CHIP_ID … #define BMI088_ACCEL_REG_ERROR … #define BMI088_ACCEL_REG_INT_STATUS … #define BMI088_ACCEL_INT_STATUS_BIT_DRDY … #define BMI088_ACCEL_REG_RESET … #define BMI088_ACCEL_RESET_VAL … #define BMI088_ACCEL_REG_PWR_CTRL … #define BMI088_ACCEL_REG_PWR_CONF … #define BMI088_ACCEL_REG_INT_MAP_DATA … #define BMI088_ACCEL_INT_MAP_DATA_BIT_INT1_DRDY … #define BMI088_ACCEL_INT_MAP_DATA_BIT_INT2_FWM … #define BMI088_ACCEL_REG_INT1_IO_CONF … #define BMI088_ACCEL_INT1_IO_CONF_BIT_ENABLE_OUT … #define BMI088_ACCEL_INT1_IO_CONF_BIT_LVL … #define BMI088_ACCEL_REG_INT2_IO_CONF … #define BMI088_ACCEL_INT2_IO_CONF_BIT_ENABLE_OUT … #define BMI088_ACCEL_INT2_IO_CONF_BIT_LVL … #define BMI088_ACCEL_REG_ACC_CONF … #define BMI088_ACCEL_MODE_ODR_MASK … #define BMI088_ACCEL_REG_ACC_RANGE … #define BMI088_ACCEL_RANGE_3G … #define BMI088_ACCEL_RANGE_6G … #define BMI088_ACCEL_RANGE_12G … #define BMI088_ACCEL_RANGE_24G … #define BMI088_ACCEL_REG_TEMP … #define BMI088_ACCEL_REG_TEMP_SHIFT … #define BMI088_ACCEL_TEMP_UNIT … #define BMI088_ACCEL_TEMP_OFFSET … #define BMI088_ACCEL_REG_XOUT_L … #define BMI088_ACCEL_AXIS_TO_REG(axis) … #define BMI088_ACCEL_MAX_STARTUP_TIME_US … #define BMI088_AUTO_SUSPEND_DELAY_MS … #define BMI088_ACCEL_REG_FIFO_STATUS … #define BMI088_ACCEL_REG_FIFO_CONFIG0 … #define BMI088_ACCEL_REG_FIFO_CONFIG1 … #define BMI088_ACCEL_REG_FIFO_DATA … #define BMI088_ACCEL_FIFO_LENGTH … #define BMI088_ACCEL_FIFO_MODE_FIFO … #define BMI088_ACCEL_FIFO_MODE_STREAM … #define BMIO088_ACCEL_ACC_RANGE_MSK … enum bmi088_accel_axis { … }; static const int bmi088_sample_freqs[] = …; /* Available OSR (over sampling rate) sets the 3dB cut-off frequency */ enum bmi088_osr_modes { … }; /* Available ODR (output data rates) in Hz */ enum bmi088_odr_modes { … }; struct bmi088_accel_chip_info { … }; struct bmi088_accel_data { … }; static const struct regmap_range bmi088_volatile_ranges[] = …; static const struct regmap_access_table bmi088_volatile_table = …; const struct regmap_config bmi088_regmap_conf = …; EXPORT_SYMBOL_NS_GPL(…); static int bmi088_accel_power_up(struct bmi088_accel_data *data) { … } static int bmi088_accel_power_down(struct bmi088_accel_data *data) { … } static int bmi088_accel_get_sample_freq(struct bmi088_accel_data *data, int *val, int *val2) { … } static int bmi088_accel_set_sample_freq(struct bmi088_accel_data *data, int val) { … } static int bmi088_accel_set_scale(struct bmi088_accel_data *data, int val, int val2) { … } static int bmi088_accel_get_temp(struct bmi088_accel_data *data, int *val) { … } static int bmi088_accel_get_axis(struct bmi088_accel_data *data, struct iio_chan_spec const *chan, int *val) { … } static int bmi088_accel_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { … } static int bmi088_accel_read_avail(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, const int **vals, int *type, int *length, long mask) { … } static int bmi088_accel_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long mask) { … } #define BMI088_ACCEL_CHANNEL(_axis) … static const struct iio_chan_spec bmi088_accel_channels[] = …; static const struct bmi088_accel_chip_info bmi088_accel_chip_info_tbl[] = …; static const struct iio_info bmi088_accel_info = …; static const unsigned long bmi088_accel_scan_masks[] = …; static int bmi088_accel_chip_init(struct bmi088_accel_data *data, enum bmi_device_type type) { … } int bmi088_accel_core_probe(struct device *dev, struct regmap *regmap, int irq, enum bmi_device_type type) { … } EXPORT_SYMBOL_NS_GPL(…); void bmi088_accel_core_remove(struct device *dev) { … } EXPORT_SYMBOL_NS_GPL(…); static int bmi088_accel_runtime_suspend(struct device *dev) { … } static int bmi088_accel_runtime_resume(struct device *dev) { … } EXPORT_NS_GPL_RUNTIME_DEV_PM_OPS(bmi088_accel_pm_ops, bmi088_accel_runtime_suspend, bmi088_accel_runtime_resume, NULL, IIO_BMI088); MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …;
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