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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - include/linux/i2c/apds990x.h
2 * This file is part of the APDS990x sensor driver.
3 * Chip is combined proximity and ambient light sensor.
5 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
7 * Contact: Samu Onkalo <samu.p.onkalo@nokia.com>
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.
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.
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
25 #ifndef __APDS990X_H__
26 #define __APDS990X_H__
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
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
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.
48 #define APDS_PARAM_SCALE 4096
49 struct apds990x_chip_factors
{
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
66 * Proximity detection result depends heavily on correct ppcount, pdrive
71 struct apds990x_platform_data
{
72 struct apds990x_chip_factors cf
;
75 int (*setup_resources
)(void);
76 int (*release_resources
)(void);