// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2013 Samsung Electronics Co., Ltd. * Author: Jacek Anaszewski <[email protected]> * * IIO features supported by the driver: * * Read-only raw channels: * - illuminance_clear [lux] * - illuminance_ir * - proximity * * Triggered buffer: * - illuminance_clear * - illuminance_ir * - proximity * * Events: * - illuminance_clear (rising and falling) * - proximity (rising and falling) * - both falling and rising thresholds for the proximity events * must be set to the values greater than 0. * * The driver supports triggered buffers for all the three * channels as well as high and low threshold events for the * illuminance_clear and proxmimity channels. Triggers * can be enabled simultaneously with both illuminance_clear * events. Proximity events cannot be enabled simultaneously * with any triggers or illuminance events. Enabling/disabling * one of the proximity events automatically enables/disables * the other one. */ #include <linux/debugfs.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/irq_work.h> #include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/mutex.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <asm/unaligned.h> #include <linux/iio/buffer.h> #include <linux/iio/events.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #include <linux/iio/trigger.h> #include <linux/iio/trigger_consumer.h> #include <linux/iio/triggered_buffer.h> #define GP2A_I2C_NAME … /* Registers */ #define GP2AP020A00F_OP_REG … #define GP2AP020A00F_ALS_REG … #define GP2AP020A00F_PS_REG … #define GP2AP020A00F_LED_REG … #define GP2AP020A00F_TL_L_REG … #define GP2AP020A00F_TL_H_REG … #define GP2AP020A00F_TH_L_REG … #define GP2AP020A00F_TH_H_REG … #define GP2AP020A00F_PL_L_REG … #define GP2AP020A00F_PL_H_REG … #define GP2AP020A00F_PH_L_REG … #define GP2AP020A00F_PH_H_REG … #define GP2AP020A00F_D0_L_REG … #define GP2AP020A00F_D0_H_REG … #define GP2AP020A00F_D1_L_REG … #define GP2AP020A00F_D1_H_REG … #define GP2AP020A00F_D2_L_REG … #define GP2AP020A00F_D2_H_REG … #define GP2AP020A00F_NUM_REGS … /* OP_REG bits */ #define GP2AP020A00F_OP3_MASK … #define GP2AP020A00F_OP3_SHUTDOWN … #define GP2AP020A00F_OP3_OPERATION … #define GP2AP020A00F_OP2_MASK … #define GP2AP020A00F_OP2_AUTO_SHUTDOWN … #define GP2AP020A00F_OP2_CONT_OPERATION … #define GP2AP020A00F_OP_MASK … #define GP2AP020A00F_OP_ALS_AND_PS … #define GP2AP020A00F_OP_ALS … #define GP2AP020A00F_OP_PS … #define GP2AP020A00F_OP_DEBUG … #define GP2AP020A00F_PROX_MASK … #define GP2AP020A00F_PROX_NON_DETECT … #define GP2AP020A00F_PROX_DETECT … #define GP2AP020A00F_FLAG_P … #define GP2AP020A00F_FLAG_A … #define GP2AP020A00F_TYPE_MASK … #define GP2AP020A00F_TYPE_MANUAL_CALC … #define GP2AP020A00F_TYPE_AUTO_CALC … /* ALS_REG bits */ #define GP2AP020A00F_PRST_MASK … #define GP2AP020A00F_PRST_ONCE … #define GP2AP020A00F_PRST_4_CYCLES … #define GP2AP020A00F_PRST_8_CYCLES … #define GP2AP020A00F_PRST_16_CYCLES … #define GP2AP020A00F_RES_A_MASK … #define GP2AP020A00F_RES_A_800ms … #define GP2AP020A00F_RES_A_400ms … #define GP2AP020A00F_RES_A_200ms … #define GP2AP020A00F_RES_A_100ms … #define GP2AP020A00F_RES_A_25ms … #define GP2AP020A00F_RES_A_6_25ms … #define GP2AP020A00F_RES_A_1_56ms … #define GP2AP020A00F_RES_A_0_39ms … #define GP2AP020A00F_RANGE_A_MASK … #define GP2AP020A00F_RANGE_A_x1 … #define GP2AP020A00F_RANGE_A_x2 … #define GP2AP020A00F_RANGE_A_x4 … #define GP2AP020A00F_RANGE_A_x8 … #define GP2AP020A00F_RANGE_A_x16 … #define GP2AP020A00F_RANGE_A_x32 … #define GP2AP020A00F_RANGE_A_x64 … #define GP2AP020A00F_RANGE_A_x128 … /* PS_REG bits */ #define GP2AP020A00F_ALC_MASK … #define GP2AP020A00F_ALC_ON … #define GP2AP020A00F_ALC_OFF … #define GP2AP020A00F_INTTYPE_MASK … #define GP2AP020A00F_INTTYPE_LEVEL … #define GP2AP020A00F_INTTYPE_PULSE … #define GP2AP020A00F_RES_P_MASK … #define GP2AP020A00F_RES_P_800ms_x2 … #define GP2AP020A00F_RES_P_400ms_x2 … #define GP2AP020A00F_RES_P_200ms_x2 … #define GP2AP020A00F_RES_P_100ms_x2 … #define GP2AP020A00F_RES_P_25ms_x2 … #define GP2AP020A00F_RES_P_6_25ms_x2 … #define GP2AP020A00F_RES_P_1_56ms_x2 … #define GP2AP020A00F_RES_P_0_39ms_x2 … #define GP2AP020A00F_RANGE_P_MASK … #define GP2AP020A00F_RANGE_P_x1 … #define GP2AP020A00F_RANGE_P_x2 … #define GP2AP020A00F_RANGE_P_x4 … #define GP2AP020A00F_RANGE_P_x8 … #define GP2AP020A00F_RANGE_P_x16 … #define GP2AP020A00F_RANGE_P_x32 … #define GP2AP020A00F_RANGE_P_x64 … #define GP2AP020A00F_RANGE_P_x128 … /* LED reg bits */ #define GP2AP020A00F_INTVAL_MASK … #define GP2AP020A00F_INTVAL_0 … #define GP2AP020A00F_INTVAL_4 … #define GP2AP020A00F_INTVAL_8 … #define GP2AP020A00F_INTVAL_16 … #define GP2AP020A00F_IS_MASK … #define GP2AP020A00F_IS_13_8mA … #define GP2AP020A00F_IS_27_5mA … #define GP2AP020A00F_IS_55mA … #define GP2AP020A00F_IS_110mA … #define GP2AP020A00F_PIN_MASK … #define GP2AP020A00F_PIN_ALS_OR_PS … #define GP2AP020A00F_PIN_ALS … #define GP2AP020A00F_PIN_PS … #define GP2AP020A00F_PIN_PS_DETECT … #define GP2AP020A00F_FREQ_MASK … #define GP2AP020A00F_FREQ_327_5kHz … #define GP2AP020A00F_FREQ_81_8kHz … #define GP2AP020A00F_RST … #define GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR … #define GP2AP020A00F_SCAN_MODE_LIGHT_IR … #define GP2AP020A00F_SCAN_MODE_PROXIMITY … #define GP2AP020A00F_CHAN_TIMESTAMP … #define GP2AP020A00F_DATA_READY_TIMEOUT … #define GP2AP020A00F_DATA_REG(chan) … #define GP2AP020A00F_THRESH_REG(th_val_id) … #define GP2AP020A00F_THRESH_VAL_ID(reg_addr) … #define GP2AP020A00F_SUBTRACT_MODE … #define GP2AP020A00F_ADD_MODE … #define GP2AP020A00F_MAX_CHANNELS … enum gp2ap020a00f_opmode { … }; enum gp2ap020a00f_cmd { … }; enum gp2ap020a00f_flags { … }; enum gp2ap020a00f_thresh_val_id { … }; struct gp2ap020a00f_data { … }; static const u8 gp2ap020a00f_reg_init_tab[] = …; static bool gp2ap020a00f_is_volatile_reg(struct device *dev, unsigned int reg) { … } static const struct regmap_config gp2ap020a00f_regmap_config = …; static const struct gp2ap020a00f_mutable_config_regs { … } opmode_regs_settings[GP2AP020A00F_NUM_OPMODES] = …; static int gp2ap020a00f_set_operation_mode(struct gp2ap020a00f_data *data, enum gp2ap020a00f_opmode op) { … } static bool gp2ap020a00f_als_enabled(struct gp2ap020a00f_data *data) { … } static bool gp2ap020a00f_prox_detect_enabled(struct gp2ap020a00f_data *data) { … } static int gp2ap020a00f_write_event_threshold(struct gp2ap020a00f_data *data, enum gp2ap020a00f_thresh_val_id th_val_id, bool enable) { … } static int gp2ap020a00f_alter_opmode(struct gp2ap020a00f_data *data, enum gp2ap020a00f_opmode diff_mode, int add_sub) { … } static int gp2ap020a00f_exec_cmd(struct gp2ap020a00f_data *data, enum gp2ap020a00f_cmd cmd) { … } static int wait_conversion_complete_irq(struct gp2ap020a00f_data *data) { … } static int gp2ap020a00f_read_output(struct gp2ap020a00f_data *data, unsigned int output_reg, int *val) { … } static bool gp2ap020a00f_adjust_lux_mode(struct gp2ap020a00f_data *data, int output_val) { … } static void gp2ap020a00f_output_to_lux(struct gp2ap020a00f_data *data, int *output_val) { … } static void gp2ap020a00f_iio_trigger_work(struct irq_work *work) { … } static irqreturn_t gp2ap020a00f_prox_sensing_handler(int irq, void *data) { … } static irqreturn_t gp2ap020a00f_thresh_event_handler(int irq, void *data) { … } static irqreturn_t gp2ap020a00f_trigger_handler(int irq, void *data) { … } static u8 gp2ap020a00f_get_thresh_reg(const struct iio_chan_spec *chan, enum iio_event_direction event_dir) { … } static int gp2ap020a00f_write_event_val(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 gp2ap020a00f_read_event_val(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 gp2ap020a00f_write_prox_event_config(struct iio_dev *indio_dev, int state) { … } static int gp2ap020a00f_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 gp2ap020a00f_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 gp2ap020a00f_read_channel(struct gp2ap020a00f_data *data, struct iio_chan_spec const *chan, int *val) { … } static int gp2ap020a00f_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { … } static const struct iio_event_spec gp2ap020a00f_event_spec_light[] = …; static const struct iio_event_spec gp2ap020a00f_event_spec_prox[] = …; static const struct iio_chan_spec gp2ap020a00f_channels[] = …; static const struct iio_info gp2ap020a00f_info = …; static int gp2ap020a00f_buffer_postenable(struct iio_dev *indio_dev) { … } static int gp2ap020a00f_buffer_predisable(struct iio_dev *indio_dev) { … } static const struct iio_buffer_setup_ops gp2ap020a00f_buffer_setup_ops = …; static int gp2ap020a00f_probe(struct i2c_client *client) { … } static void gp2ap020a00f_remove(struct i2c_client *client) { … } static const struct i2c_device_id gp2ap020a00f_id[] = …; MODULE_DEVICE_TABLE(i2c, gp2ap020a00f_id); static const struct of_device_id gp2ap020a00f_of_match[] = …; MODULE_DEVICE_TABLE(of, gp2ap020a00f_of_match); static struct i2c_driver gp2ap020a00f_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
Codebase Browser
linux