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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 | |
49 | struct 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 | ||
71 | struct 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 |