// SPDX-License-Identifier: GPL-2.0+ /* * ADXL380 3-Axis Digital Accelerometer core driver * * Copyright 2024 Analog Devices Inc. */ #include <linux/bitfield.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/module.h> #include <linux/property.h> #include <linux/regmap.h> #include <linux/units.h> #include <linux/unaligned.h> #include <linux/iio/buffer.h> #include <linux/iio/events.h> #include <linux/iio/iio.h> #include <linux/iio/kfifo_buf.h> #include <linux/iio/sysfs.h> #include <linux/regulator/consumer.h> #include "adxl380.h" #define ADXL380_ID_VAL … #define ADXL382_ID_VAL … #define ADXL380_DEVID_AD_REG … #define ADLX380_PART_ID_REG … #define ADXL380_X_DATA_H_REG … #define ADXL380_Y_DATA_H_REG … #define ADXL380_Z_DATA_H_REG … #define ADXL380_T_DATA_H_REG … #define ADXL380_MISC_0_REG … #define ADXL380_XL382_MSK … #define ADXL380_MISC_1_REG … #define ADXL380_X_DSM_OFFSET_REG … #define ADXL380_ACT_INACT_CTL_REG … #define ADXL380_INACT_EN_MSK … #define ADXL380_ACT_EN_MSK … #define ADXL380_SNSR_AXIS_EN_REG … #define ADXL380_ACT_INACT_AXIS_EN_MSK … #define ADXL380_THRESH_ACT_H_REG … #define ADXL380_TIME_ACT_H_REG … #define ADXL380_THRESH_INACT_H_REG … #define ADXL380_TIME_INACT_H_REG … #define ADXL380_THRESH_MAX … #define ADXL380_TIME_MAX … #define ADXL380_FIFO_CONFIG_0_REG … #define ADXL380_FIFO_SAMPLES_8_MSK … #define ADXL380_FIFO_MODE_MSK … #define ADXL380_FIFO_DISABLED … #define ADXL380_FIFO_NORMAL … #define ADXL380_FIFO_STREAMED … #define ADXL380_FIFO_TRIGGERED … #define ADXL380_FIFO_CONFIG_1_REG … #define ADXL380_FIFO_STATUS_0_REG … #define ADXL380_TAP_THRESH_REG … #define ADXL380_TAP_DUR_REG … #define ADXL380_TAP_LATENT_REG … #define ADXL380_TAP_WINDOW_REG … #define ADXL380_TAP_TIME_MAX … #define ADXL380_TAP_CFG_REG … #define ADXL380_TAP_AXIS_MSK … #define ADXL380_TRIG_CFG_REG … #define ADXL380_TRIG_CFG_DEC_2X_MSK … #define ADXL380_TRIG_CFG_SINC_RATE_MSK … #define ADXL380_FILTER_REG … #define ADXL380_FILTER_EQ_FILT_MSK … #define ADXL380_FILTER_LPF_MODE_MSK … #define ADXL380_FILTER_HPF_PATH_MSK … #define ADXL380_FILTER_HPF_CORNER_MSK … #define ADXL380_OP_MODE_REG … #define ADXL380_OP_MODE_RANGE_MSK … #define ADXL380_OP_MODE_MSK … #define ADXL380_OP_MODE_STANDBY … #define ADXL380_OP_MODE_HEART_SOUND … #define ADXL380_OP_MODE_ULP … #define ADXL380_OP_MODE_VLP … #define ADXL380_OP_MODE_LP … #define ADXL380_OP_MODE_LP_ULP … #define ADXL380_OP_MODE_LP_VLP … #define ADXL380_OP_MODE_RBW … #define ADXL380_OP_MODE_RBW_ULP … #define ADXL380_OP_MODE_RBW_VLP … #define ADXL380_OP_MODE_HP … #define ADXL380_OP_MODE_HP_ULP … #define ADXL380_OP_MODE_HP_VLP … #define ADXL380_OP_MODE_4G_RANGE … #define ADXL382_OP_MODE_15G_RANGE … #define ADXL380_OP_MODE_8G_RANGE … #define ADXL382_OP_MODE_30G_RANGE … #define ADXL380_OP_MODE_16G_RANGE … #define ADXL382_OP_MODE_60G_RANGE … #define ADXL380_DIG_EN_REG … #define ADXL380_CHAN_EN_MSK(chan) … #define ADXL380_FIFO_EN_MSK … #define ADXL380_INT0_MAP0_REG … #define ADXL380_INT1_MAP0_REG … #define ADXL380_INT_MAP0_INACT_INT0_MSK … #define ADXL380_INT_MAP0_ACT_INT0_MSK … #define ADXL380_INT_MAP0_FIFO_WM_INT0_MSK … #define ADXL380_INT0_MAP1_REG … #define ADXL380_INT1_MAP1_REG … #define ADXL380_INT_MAP1_DOUBLE_TAP_INT0_MSK … #define ADXL380_INT_MAP1_SINGLE_TAP_INT0_MSK … #define ADXL380_INT0_REG … #define ADXL380_INT0_POL_MSK … #define ADXL380_RESET_REG … #define ADXL380_FIFO_DATA … #define ADXL380_DEVID_AD_VAL … #define ADXL380_RESET_CODE … #define ADXL380_STATUS_0_REG … #define ADXL380_STATUS_0_FIFO_FULL_MSK … #define ADXL380_STATUS_0_FIFO_WM_MSK … #define ADXL380_STATUS_1_INACT_MSK … #define ADXL380_STATUS_1_ACT_MSK … #define ADXL380_STATUS_1_DOUBLE_TAP_MSK … #define ADXL380_STATUS_1_SINGLE_TAP_MSK … #define ADXL380_FIFO_SAMPLES … enum adxl380_channels { … }; enum adxl380_axis { … }; enum adxl380_activity_type { … }; enum adxl380_tap_type { … }; enum adxl380_tap_time_type { … }; static const int adxl380_range_scale_factor_tbl[] = …; const struct adxl380_chip_info adxl380_chip_info = …; EXPORT_SYMBOL_NS_GPL(…); const struct adxl380_chip_info adxl382_chip_info = …; EXPORT_SYMBOL_NS_GPL(…); static const unsigned int adxl380_th_reg_high_addr[2] = …; static const unsigned int adxl380_time_reg_high_addr[2] = …; static const unsigned int adxl380_tap_time_reg[2] = …; struct adxl380_state { … }; bool adxl380_readable_noinc_reg(struct device *dev, unsigned int reg) { … } EXPORT_SYMBOL_NS_GPL(…); static int adxl380_set_measure_en(struct adxl380_state *st, bool en) { … } static void adxl380_scale_act_inact_thresholds(struct adxl380_state *st, u8 old_range, u8 new_range) { … } static int adxl380_write_act_inact_threshold(struct adxl380_state *st, enum adxl380_activity_type act, unsigned int th) { … } static int adxl380_set_act_inact_threshold(struct iio_dev *indio_dev, enum adxl380_activity_type act, u16 th) { … } static int adxl380_set_tap_threshold_value(struct iio_dev *indio_dev, u8 th) { … } static int _adxl380_write_tap_time_us(struct adxl380_state *st, enum adxl380_tap_time_type tap_time_type, u32 us) { … } static int adxl380_write_tap_time_us(struct adxl380_state *st, enum adxl380_tap_time_type tap_time_type, u32 us) { … } static int adxl380_write_tap_dur_us(struct iio_dev *indio_dev, u32 us) { … } static int adxl380_read_chn(struct adxl380_state *st, u8 addr) { … } static int adxl380_get_odr(struct adxl380_state *st, int *odr) { … } static const int adxl380_lpf_div[] = …; static int adxl380_fill_lpf_tbl(struct adxl380_state *st) { … } static const int adxl380_hpf_mul[] = …; static int adxl380_fill_hpf_tbl(struct adxl380_state *st) { … } static int adxl380_set_odr(struct adxl380_state *st, u8 odr) { … } static int adxl380_find_match_1d_tbl(const int *array, unsigned int size, int val) { … } static int adxl380_find_match_2d_tbl(const int (*freq_tbl)[2], int n, int val, int val2) { … } static int adxl380_get_lpf(struct adxl380_state *st, int *lpf) { … } static int adxl380_set_lpf(struct adxl380_state *st, u8 lpf) { … } static int adxl380_get_hpf(struct adxl380_state *st, int *hpf_int, int *hpf_frac) { … } static int adxl380_set_hpf(struct adxl380_state *st, u8 hpf) { … } static int _adxl380_set_act_inact_time_ms(struct adxl380_state *st, enum adxl380_activity_type act, u32 ms) { … } static int adxl380_set_act_inact_time_ms(struct adxl380_state *st, enum adxl380_activity_type act, u32 ms) { … } static int adxl380_set_range(struct adxl380_state *st, u8 range) { … } static int adxl380_write_act_inact_en(struct adxl380_state *st, enum adxl380_activity_type type, bool en) { … } static int adxl380_read_act_inact_int(struct adxl380_state *st, enum adxl380_activity_type type, bool *en) { … } static int adxl380_write_act_inact_int(struct adxl380_state *st, enum adxl380_activity_type act, bool en) { … } static int adxl380_act_inact_config(struct adxl380_state *st, enum adxl380_activity_type type, bool en) { … } static int adxl380_write_tap_axis(struct adxl380_state *st, enum adxl380_axis axis) { … } static int adxl380_read_tap_int(struct adxl380_state *st, enum adxl380_tap_type type, bool *en) { … } static int adxl380_write_tap_int(struct adxl380_state *st, enum adxl380_tap_type type, bool en) { … } static int adxl380_tap_config(struct adxl380_state *st, enum adxl380_axis axis, enum adxl380_tap_type type, bool en) { … } static int adxl380_set_fifo_samples(struct adxl380_state *st) { … } static int adxl380_get_status(struct adxl380_state *st, u8 *status0, u8 *status1) { … } static int adxl380_get_fifo_entries(struct adxl380_state *st, u16 *fifo_entries) { … } static void adxl380_push_event(struct iio_dev *indio_dev, s64 timestamp, u8 status1) { … } static irqreturn_t adxl380_irq_handler(int irq, void *p) { … } static int adxl380_write_calibbias_value(struct adxl380_state *st, unsigned long chan_addr, s8 calibbias) { … } static int adxl380_read_calibbias_value(struct adxl380_state *st, unsigned long chan_addr, int *calibbias) { … } static ssize_t hwfifo_watermark_min_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t hwfifo_watermark_max_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adxl380_get_fifo_watermark(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t adxl380_get_fifo_enabled(struct device *dev, struct device_attribute *attr, char *buf) { … } static IIO_DEVICE_ATTR_RO(hwfifo_watermark_min, 0); static IIO_DEVICE_ATTR_RO(hwfifo_watermark_max, 0); static IIO_DEVICE_ATTR(hwfifo_watermark, 0444, adxl380_get_fifo_watermark, NULL, 0); static IIO_DEVICE_ATTR(hwfifo_enabled, 0444, adxl380_get_fifo_enabled, NULL, 0); static const struct iio_dev_attr *adxl380_fifo_attributes[] = …; static int adxl380_buffer_postenable(struct iio_dev *indio_dev) { … } static int adxl380_buffer_predisable(struct iio_dev *indio_dev) { … } static const struct iio_buffer_setup_ops adxl380_buffer_ops = …; static int adxl380_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long info) { … } static int adxl380_read_avail(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, const int **vals, int *type, int *length, long mask) { … } static int adxl380_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long info) { … } static int adxl380_write_raw_get_fmt(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, long info) { … } static int adxl380_read_event_config(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir) { … } static int adxl380_write_event_config(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir, int state) { … } static int adxl380_read_event_value(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir, enum iio_event_info info, int *val, int *val2) { … } static int adxl380_write_event_value(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir, enum iio_event_info info, int val, int val2) { … } static ssize_t in_accel_gesture_tap_maxtomin_time_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t in_accel_gesture_tap_maxtomin_time_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { … } static IIO_DEVICE_ATTR_RW(in_accel_gesture_tap_maxtomin_time, 0); static struct attribute *adxl380_event_attributes[] = …; static const struct attribute_group adxl380_event_attribute_group = …; static int adxl380_reg_access(struct iio_dev *indio_dev, unsigned int reg, unsigned int writeval, unsigned int *readval) { … } static int adxl380_set_watermark(struct iio_dev *indio_dev, unsigned int val) { … } static const struct iio_info adxl380_info = …; static const struct iio_event_spec adxl380_events[] = …; #define ADXL380_ACCEL_CHANNEL(index, reg, axis) … static const struct iio_chan_spec adxl380_channels[] = …; static int adxl380_config_irq(struct iio_dev *indio_dev) { … } static int adxl380_setup(struct iio_dev *indio_dev) { … } int adxl380_probe(struct device *dev, struct regmap *regmap, const struct adxl380_chip_info *chip_info) { … } EXPORT_SYMBOL_NS_GPL(…); MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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