/*
 * This file is part of the APDS990x sensor driver.
 * Chip is combined proximity and ambient light sensor.
 *
 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 *
 * Contact: Samu Onkalo <samu.p.onkalo@nokia.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.
 */

#ifndef __APDS993X_H__
#define __APDS993X_H__

#define APDS_IRLED_CURR_12mA	0x3
#define APDS_IRLED_CURR_25mA	0x2
#define APDS_IRLED_CURR_50mA	0x1
#define APDS_IRLED_CURR_100mA	0x0

/**
 * struct apds990x_chip_factors - defines effect of the cover window
 * @ga: Total glass attenuation
 * @cf1: clear channel factor 1 for raw to lux conversion
 * @irf1: IR channel factor 1 for raw to lux conversion
 * @cf2: clear channel factor 2 for raw to lux conversion
 * @irf2: IR channel factor 2 for raw to lux conversion
 * @df: device factor for conversion formulas
 *
 * Structure for tuning ALS calculation to match with environment.
 * Values depend on the material above the sensor and the sensor
 * itself. If the GA is zero, driver will use uncovered sensor default values
 * format: decimal value * APDS_PARAM_SCALE except df which is plain integer.
 */
#define APDS_PARAM_SCALE 4096
struct apds993x_chip_factors {
	int ga;
	int cf1;
	int irf1;
	int cf2;
	int irf2;
	int df;
};

/**
 * struct apds990x_platform_data - platform data for apsd990x.c driver
 * @cf: chip factor data
 * @pddrive: IR-led driving current
 * @ppcount: number of IR pulses used for proximity estimation
 * @setup_resources: interrupt line setup call back function
 * @release_resources: interrupt line release call back function
 *
 * Proximity detection result depends heavily on correct ppcount, pdrive
 * and cover window.
 *
 */

/* POWER SUPPLY VOLTAGE RANGE */
#define APDS993X_VDD_MIN_UV  2000000
#define APDS993X_VDD_MAX_UV  3300000
#define APDS993X_VIO_MIN_UV  1750000
#define APDS993X_VIO_MAX_UV  1950000

/* Analog voltage @2.7 V */
#define AVDD_VTG_MIN_UV		3000000
#define AVDD_VTG_MAX_UV		3000000
#define AVDD_ACTIVE_LOAD_UA	15000

/* Digital voltage @1.8 V */
#define VDDIO_VTG_DIG_MIN_UV	1800000
#define VDDIO_VTG_DIG_MAX_UV	1800000
#define VDDIO_ACTIVE_LOAD_DIG_UA	10000

#define VDDIO_I2C_VTG_MIN_UV	1800000
#define VDDIO_I2C_VTG_MAX_UV	1800000
#define VDDIO_I2C_LOAD_UA		10000


struct apds993x_platform_data {
	struct apds993x_chip_factors cf;
	u8	   pdrive;
	unsigned int  ppcount;
	int    (*setup_resources)(void);
	int    (*release_resources)(void);

	int irq_num;
	int (*power)(unsigned char onoff);
	int (*init)(void);
	void (*exit)(void);
	int (*power_on)(bool);

	unsigned int prox_threshold;
	unsigned int prox_hsyteresis_threshold;
	unsigned int prox_pulse;
	unsigned int prox_gain;
	unsigned int als_threshold_hsyteresis;
	unsigned int cross_talk;
	unsigned int als_B;
	unsigned int als_C;
	unsigned int als_D;
	unsigned int alsit;
	unsigned int ga_value;
	unsigned int df_value;
	unsigned int atime;

	bool i2c_pull_up;
	bool digital_pwr_regulator;
	bool default_cal;

	unsigned int irq_gpio;
	u32 irq_gpio_flags;
};

#endif