// SPDX-License-Identifier: GPL-2.0-only /* * Freescale MMA9553L Intelligent Pedometer driver * Copyright (c) 2014, Intel Corporation. */ #include <linux/module.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/slab.h> #include <linux/acpi.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #include <linux/iio/events.h> #include <linux/pm_runtime.h> #include "mma9551_core.h" #define MMA9553_DRV_NAME … #define MMA9553_IRQ_NAME … /* Pedometer configuration registers (R/W) */ #define MMA9553_REG_CONF_SLEEPMIN … #define MMA9553_REG_CONF_SLEEPMAX … #define MMA9553_REG_CONF_SLEEPTHD … #define MMA9553_MASK_CONF_WORD … #define MMA9553_REG_CONF_CONF_STEPLEN … #define MMA9553_MASK_CONF_CONFIG … #define MMA9553_MASK_CONF_ACT_DBCNTM … #define MMA9553_MASK_CONF_SLP_DBCNTM … #define MMA9553_MASK_CONF_STEPLEN … #define MMA9553_REG_CONF_HEIGHT_WEIGHT … #define MMA9553_MASK_CONF_HEIGHT … #define MMA9553_MASK_CONF_WEIGHT … #define MMA9553_REG_CONF_FILTER … #define MMA9553_MASK_CONF_FILTSTEP … #define MMA9553_MASK_CONF_MALE … #define MMA9553_MASK_CONF_FILTTIME … #define MMA9553_REG_CONF_SPEED_STEP … #define MMA9553_MASK_CONF_SPDPRD … #define MMA9553_MASK_CONF_STEPCOALESCE … #define MMA9553_REG_CONF_ACTTHD … #define MMA9553_MAX_ACTTHD … /* Pedometer status registers (R-only) */ #define MMA9553_REG_STATUS … #define MMA9553_MASK_STATUS_MRGFL … #define MMA9553_MASK_STATUS_SUSPCHG … #define MMA9553_MASK_STATUS_STEPCHG … #define MMA9553_MASK_STATUS_ACTCHG … #define MMA9553_MASK_STATUS_SUSP … #define MMA9553_MASK_STATUS_ACTIVITY … #define MMA9553_MASK_STATUS_VERSION … #define MMA9553_REG_STEPCNT … #define MMA9553_REG_DISTANCE … #define MMA9553_REG_SPEED … #define MMA9553_REG_CALORIES … #define MMA9553_REG_SLEEPCNT … /* Pedometer events are always mapped to this pin. */ #define MMA9553_DEFAULT_GPIO_PIN … #define MMA9553_DEFAULT_GPIO_POLARITY … /* Bitnum used for GPIO configuration = bit number in high status byte */ #define MMA9553_STATUS_TO_BITNUM(bit) … #define MMA9553_MAX_BITNUM … #define MMA9553_DEFAULT_SAMPLE_RATE … /* * The internal activity level must be stable for ACTTHD samples before * ACTIVITY is updated. The ACTIVITY variable contains the current activity * level and is updated every time a step is detected or once a second * if there are no steps. */ #define MMA9553_ACTIVITY_THD_TO_SEC(thd) … #define MMA9553_ACTIVITY_SEC_TO_THD(sec) … /* * Autonomously suspend pedometer if acceleration vector magnitude * is near 1g (4096 at 0.244 mg/LSB resolution) for 30 seconds. */ #define MMA9553_DEFAULT_SLEEPMIN … #define MMA9553_DEFAULT_SLEEPMAX … #define MMA9553_DEFAULT_SLEEPTHD … #define MMA9553_CONFIG_RETRIES … /* Status register - activity field */ enum activity_level { … }; static struct mma9553_event_info { … } mma9553_events_info[] = …; #define MMA9553_EVENTS_INFO_SIZE … struct mma9553_event { … }; struct mma9553_conf_regs { … } __packed; struct mma9553_data { … }; static u8 mma9553_get_bits(u16 val, u16 mask) { … } static u16 mma9553_set_bits(u16 current_val, u16 val, u16 mask) { … } static enum iio_modifier mma9553_activity_to_mod(enum activity_level activity) { … } static void mma9553_init_events(struct mma9553_data *data) { … } static struct mma9553_event *mma9553_get_event(struct mma9553_data *data, enum iio_chan_type type, enum iio_modifier mod, enum iio_event_direction dir) { … } static bool mma9553_is_any_event_enabled(struct mma9553_data *data, bool check_type, enum iio_chan_type type) { … } static int mma9553_set_config(struct mma9553_data *data, u16 reg, u16 *p_reg_val, u16 val, u16 mask) { … } static int mma9553_read_activity_stepcnt(struct mma9553_data *data, u8 *activity, u16 *stepcnt) { … } static int mma9553_conf_gpio(struct mma9553_data *data) { … } static int mma9553_init(struct mma9553_data *data) { … } static int mma9553_read_status_word(struct mma9553_data *data, u16 reg, u16 *tmp) { … } static int mma9553_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { … } static int mma9553_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long mask) { … } static int mma9553_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 mma9553_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 mma9553_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 mma9553_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 int mma9553_get_calibgender_mode(struct iio_dev *indio_dev, const struct iio_chan_spec *chan) { … } static int mma9553_set_calibgender_mode(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, unsigned int mode) { … } static const struct iio_event_spec mma9553_step_event = …; static const struct iio_event_spec mma9553_activity_events[] = …; static const char * const mma9553_calibgender_modes[] = …; static const struct iio_enum mma9553_calibgender_enum = …; static const struct iio_chan_spec_ext_info mma9553_ext_info[] = …; #define MMA9553_PEDOMETER_CHANNEL(_type, _mask) … #define MMA9553_ACTIVITY_CHANNEL(_chan2) … static const struct iio_chan_spec mma9553_channels[] = …; static const struct iio_info mma9553_info = …; static irqreturn_t mma9553_irq_handler(int irq, void *private) { … } static irqreturn_t mma9553_event_handler(int irq, void *private) { … } static const char *mma9553_match_acpi_device(struct device *dev) { … } static int mma9553_probe(struct i2c_client *client) { … } static void mma9553_remove(struct i2c_client *client) { … } static int mma9553_runtime_suspend(struct device *dev) { … } static int mma9553_runtime_resume(struct device *dev) { … } static int mma9553_suspend(struct device *dev) { … } static int mma9553_resume(struct device *dev) { … } static const struct dev_pm_ops mma9553_pm_ops = …; static const struct acpi_device_id mma9553_acpi_match[] = …; MODULE_DEVICE_TABLE(acpi, mma9553_acpi_match); static const struct i2c_device_id mma9553_id[] = …; MODULE_DEVICE_TABLE(i2c, mma9553_id); static struct i2c_driver mma9553_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …; MODULE_IMPORT_NS(…);
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