// SPDX-License-Identifier: GPL-2.0-only /* * JSA1212 Ambient Light & Proximity Sensor Driver * * Copyright (c) 2014, Intel Corporation. * * JSA1212 I2C slave address: 0x44(ADDR tied to GND), 0x45(ADDR tied to VDD) * * TODO: Interrupt support, thresholds, range support. */ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/mutex.h> #include <linux/regmap.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> /* JSA1212 reg address */ #define JSA1212_CONF_REG … #define JSA1212_INT_REG … #define JSA1212_PXS_LT_REG … #define JSA1212_PXS_HT_REG … #define JSA1212_ALS_TH1_REG … #define JSA1212_ALS_TH2_REG … #define JSA1212_ALS_TH3_REG … #define JSA1212_PXS_DATA_REG … #define JSA1212_ALS_DT1_REG … #define JSA1212_ALS_DT2_REG … #define JSA1212_ALS_RNG_REG … #define JSA1212_MAX_REG … /* JSA1212 reg masks */ #define JSA1212_CONF_MASK … #define JSA1212_INT_MASK … #define JSA1212_PXS_LT_MASK … #define JSA1212_PXS_HT_MASK … #define JSA1212_ALS_TH1_MASK … #define JSA1212_ALS_TH2_LT_MASK … #define JSA1212_ALS_TH2_HT_MASK … #define JSA1212_ALS_TH3_MASK … #define JSA1212_PXS_DATA_MASK … #define JSA1212_ALS_DATA_MASK … #define JSA1212_ALS_DT1_MASK … #define JSA1212_ALS_DT2_MASK … #define JSA1212_ALS_RNG_MASK … /* JSA1212 CONF REG bits */ #define JSA1212_CONF_PXS_MASK … #define JSA1212_CONF_PXS_ENABLE … #define JSA1212_CONF_PXS_DISABLE … #define JSA1212_CONF_ALS_MASK … #define JSA1212_CONF_ALS_ENABLE … #define JSA1212_CONF_ALS_DISABLE … #define JSA1212_CONF_IRDR_MASK … /* Proxmity sensing IRDR current sink settings */ #define JSA1212_CONF_IRDR_200MA … #define JSA1212_CONF_IRDR_100MA … #define JSA1212_CONF_PXS_SLP_MASK … #define JSA1212_CONF_PXS_SLP_0MS … #define JSA1212_CONF_PXS_SLP_12MS … #define JSA1212_CONF_PXS_SLP_50MS … #define JSA1212_CONF_PXS_SLP_75MS … #define JSA1212_CONF_PXS_SLP_100MS … #define JSA1212_CONF_PXS_SLP_200MS … #define JSA1212_CONF_PXS_SLP_400MS … #define JSA1212_CONF_PXS_SLP_800MS … /* JSA1212 INT REG bits */ #define JSA1212_INT_CTRL_MASK … #define JSA1212_INT_CTRL_EITHER … #define JSA1212_INT_CTRL_BOTH … #define JSA1212_INT_ALS_PRST_MASK … #define JSA1212_INT_ALS_PRST_1CONV … #define JSA1212_INT_ALS_PRST_4CONV … #define JSA1212_INT_ALS_PRST_8CONV … #define JSA1212_INT_ALS_PRST_16CONV … #define JSA1212_INT_ALS_FLAG_MASK … #define JSA1212_INT_ALS_FLAG_CLR … #define JSA1212_INT_PXS_PRST_MASK … #define JSA1212_INT_PXS_PRST_1CONV … #define JSA1212_INT_PXS_PRST_4CONV … #define JSA1212_INT_PXS_PRST_8CONV … #define JSA1212_INT_PXS_PRST_16CONV … #define JSA1212_INT_PXS_FLAG_MASK … #define JSA1212_INT_PXS_FLAG_CLR … /* JSA1212 ALS RNG REG bits */ #define JSA1212_ALS_RNG_0_2048 … #define JSA1212_ALS_RNG_0_1024 … #define JSA1212_ALS_RNG_0_512 … #define JSA1212_ALS_RNG_0_256 … #define JSA1212_ALS_RNG_0_128 … /* JSA1212 INT threshold range */ #define JSA1212_ALS_TH_MIN … #define JSA1212_ALS_TH_MAX … #define JSA1212_PXS_TH_MIN … #define JSA1212_PXS_TH_MAX … #define JSA1212_ALS_DELAY_MS … #define JSA1212_PXS_DELAY_MS … #define JSA1212_DRIVER_NAME … #define JSA1212_REGMAP_NAME … enum jsa1212_op_mode { … }; struct jsa1212_data { … }; /* ALS range idx to val mapping */ static const int jsa1212_als_range_val[] = …; /* Enables or disables ALS function based on status */ static int jsa1212_als_enable(struct jsa1212_data *data, u8 status) { … } /* Enables or disables PXS function based on status */ static int jsa1212_pxs_enable(struct jsa1212_data *data, u8 status) { … } static int jsa1212_read_als_data(struct jsa1212_data *data, unsigned int *val) { … } static int jsa1212_read_pxs_data(struct jsa1212_data *data, unsigned int *val) { … } static int jsa1212_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { … } static const struct iio_chan_spec jsa1212_channels[] = …; static const struct iio_info jsa1212_info = …; static int jsa1212_chip_init(struct jsa1212_data *data) { … } static bool jsa1212_is_volatile_reg(struct device *dev, unsigned int reg) { … } static const struct regmap_config jsa1212_regmap_config = …; static int jsa1212_probe(struct i2c_client *client) { … } /* power off the device */ static int jsa1212_power_off(struct jsa1212_data *data) { … } static void jsa1212_remove(struct i2c_client *client) { … } static int jsa1212_suspend(struct device *dev) { … } static int jsa1212_resume(struct device *dev) { … } static DEFINE_SIMPLE_DEV_PM_OPS(jsa1212_pm_ops, jsa1212_suspend, jsa1212_resume); static const struct acpi_device_id jsa1212_acpi_match[] = …; MODULE_DEVICE_TABLE(acpi, jsa1212_acpi_match); static const struct i2c_device_id jsa1212_id[] = …; MODULE_DEVICE_TABLE(i2c, jsa1212_id); static struct i2c_driver jsa1212_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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