// SPDX-License-Identifier: GPL-2.0-only /* * Sensortek STK3310/STK3311 Ambient Light and Proximity Sensor * * Copyright (c) 2015, Intel Corporation. * * IIO driver for STK3310/STK3311. 7-bit I2C address: 0x48. */ #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/regmap.h> #include <linux/iio/events.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #define STK3310_REG_STATE … #define STK3310_REG_PSCTRL … #define STK3310_REG_ALSCTRL … #define STK3310_REG_INT … #define STK3310_REG_THDH_PS … #define STK3310_REG_THDL_PS … #define STK3310_REG_FLAG … #define STK3310_REG_PS_DATA_MSB … #define STK3310_REG_PS_DATA_LSB … #define STK3310_REG_ALS_DATA_MSB … #define STK3310_REG_ALS_DATA_LSB … #define STK3310_REG_ID … #define STK3310_MAX_REG … #define STK3310_STATE_EN_PS … #define STK3310_STATE_EN_ALS … #define STK3310_STATE_STANDBY … #define STK3013_CHIP_ID_VAL … #define STK3310_CHIP_ID_VAL … #define STK3311_CHIP_ID_VAL … #define STK3311A_CHIP_ID_VAL … #define STK3311S34_CHIP_ID_VAL … #define STK3311X_CHIP_ID_VAL … #define STK3335_CHIP_ID_VAL … #define STK3310_PSINT_EN … #define STK3310_PS_MAX_VAL … #define STK3310_DRIVER_NAME … #define STK3310_REGMAP_NAME … #define STK3310_EVENT … #define STK3310_SCALE_AVAILABLE … #define STK3310_IT_AVAILABLE … #define STK3310_REGFIELD(name) … static const struct reg_field stk3310_reg_field_state = …; static const struct reg_field stk3310_reg_field_als_gain = …; static const struct reg_field stk3310_reg_field_ps_gain = …; static const struct reg_field stk3310_reg_field_als_it = …; static const struct reg_field stk3310_reg_field_ps_it = …; static const struct reg_field stk3310_reg_field_int_ps = …; static const struct reg_field stk3310_reg_field_flag_psint = …; static const struct reg_field stk3310_reg_field_flag_nf = …; static const u8 stk3310_chip_ids[] = …; /* Estimate maximum proximity values with regard to measurement scale. */ static const int stk3310_ps_max[4] = …; static const int stk3310_scale_table[][2] = …; /* Integration time in seconds, microseconds */ static const int stk3310_it_table[][2] = …; struct stk3310_data { … }; static const struct iio_event_spec stk3310_events[] = …; static ssize_t stk3310_read_near_level(struct iio_dev *indio_dev, uintptr_t priv, const struct iio_chan_spec *chan, char *buf) { … } static const struct iio_chan_spec_ext_info stk3310_ext_info[] = …; static const struct iio_chan_spec stk3310_channels[] = …; static IIO_CONST_ATTR(in_illuminance_scale_available, STK3310_SCALE_AVAILABLE); static IIO_CONST_ATTR(in_proximity_scale_available, STK3310_SCALE_AVAILABLE); static IIO_CONST_ATTR(in_illuminance_integration_time_available, STK3310_IT_AVAILABLE); static IIO_CONST_ATTR(in_proximity_integration_time_available, STK3310_IT_AVAILABLE); static struct attribute *stk3310_attributes[] = …; static const struct attribute_group stk3310_attribute_group = …; static int stk3310_check_chip_id(const u8 chip_id) { … } static int stk3310_get_index(const int table[][2], int table_size, int val, int val2) { … } static int stk3310_read_event(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 stk3310_write_event(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 stk3310_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 stk3310_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 stk3310_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { … } static int stk3310_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long mask) { … } static const struct iio_info stk3310_info = …; static int stk3310_set_state(struct stk3310_data *data, u8 state) { … } static int stk3310_init(struct iio_dev *indio_dev) { … } static bool stk3310_is_volatile_reg(struct device *dev, unsigned int reg) { … } static const struct regmap_config stk3310_regmap_config = …; static int stk3310_regmap_init(struct stk3310_data *data) { … } static irqreturn_t stk3310_irq_handler(int irq, void *private) { … } static irqreturn_t stk3310_irq_event_handler(int irq, void *private) { … } static int stk3310_probe(struct i2c_client *client) { … } static void stk3310_remove(struct i2c_client *client) { … } static int stk3310_suspend(struct device *dev) { … } static int stk3310_resume(struct device *dev) { … } static DEFINE_SIMPLE_DEV_PM_OPS(stk3310_pm_ops, stk3310_suspend, stk3310_resume); static const struct i2c_device_id stk3310_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, stk3310_i2c_id); static const struct acpi_device_id stk3310_acpi_id[] = …; MODULE_DEVICE_TABLE(acpi, stk3310_acpi_id); static const struct of_device_id stk3310_of_match[] = …; MODULE_DEVICE_TABLE(of, stk3310_of_match); static struct i2c_driver stk3310_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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