1/*
2 * This file is part of the APDS990x sensor driver.
3 * Chip is combined proximity and ambient light sensor.
4 *
5 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
6 *
7 * Contact: Samu Onkalo <samu.p.onkalo@nokia.com>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2 as published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
21 * 02110-1301 USA
22 *
23 */
24
25#ifndef __APDS990X_H__
26#define __APDS990X_H__
27
28
29#define APDS_IRLED_CURR_12mA	0x3
30#define APDS_IRLED_CURR_25mA	0x2
31#define APDS_IRLED_CURR_50mA	0x1
32#define APDS_IRLED_CURR_100mA	0x0
33
34/**
35 * struct apds990x_chip_factors - defines effect of the cover window
36 * @ga: Total glass attenuation
37 * @cf1: clear channel factor 1 for raw to lux conversion
38 * @irf1: IR channel factor 1 for raw to lux conversion
39 * @cf2: clear channel factor 2 for raw to lux conversion
40 * @irf2: IR channel factor 2 for raw to lux conversion
41 * @df: device factor for conversion formulas
42 *
43 * Structure for tuning ALS calculation to match with environment.
44 * Values depend on the material above the sensor and the sensor
45 * itself. If the GA is zero, driver will use uncovered sensor default values
46 * format: decimal value * APDS_PARAM_SCALE except df which is plain integer.
47 */
48#define APDS_PARAM_SCALE 4096
49struct apds990x_chip_factors {
50	int ga;
51	int cf1;
52	int irf1;
53	int cf2;
54	int irf2;
55	int df;
56};
57
58/**
59 * struct apds990x_platform_data - platform data for apsd990x.c driver
60 * @cf: chip factor data
61 * @pddrive: IR-led driving current
62 * @ppcount: number of IR pulses used for proximity estimation
63 * @setup_resources: interrupt line setup call back function
64 * @release_resources: interrupt line release call back function
65 *
66 * Proximity detection result depends heavily on correct ppcount, pdrive
67 * and cover window.
68 *
69 */
70
71struct apds990x_platform_data {
72	struct apds990x_chip_factors cf;
73	u8     pdrive;
74	u8     ppcount;
75	int    (*setup_resources)(void);
76	int    (*release_resources)(void);
77};
78
79#endif
80