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190420ab SO |
1 | /* |
2 | * This file is part of the ROHM BH1770GLC / OSRAM SFH7770 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 __BH1770_H__ | |
26 | #define __BH1770_H__ | |
27 | ||
28 | /** | |
29 | * struct bh1770_platform_data - platform data for bh1770glc driver | |
30 | * @led_def_curr: IR led driving current. | |
31 | * @glass_attenuation: Attenuation factor for covering window. | |
32 | * @setup_resources: Call back for interrupt line setup function | |
33 | * @release_resources: Call back for interrupte line release function | |
34 | * | |
35 | * Example of glass attenuation: 16384 * 385 / 100 means attenuation factor | |
36 | * of 3.85. i.e. light_above_sensor = light_above_cover_window / 3.85 | |
37 | */ | |
38 | ||
39 | struct bh1770_platform_data { | |
40 | #define BH1770_LED_5mA 0 | |
41 | #define BH1770_LED_10mA 1 | |
42 | #define BH1770_LED_20mA 2 | |
43 | #define BH1770_LED_50mA 3 | |
44 | #define BH1770_LED_100mA 4 | |
45 | #define BH1770_LED_150mA 5 | |
46 | #define BH1770_LED_200mA 6 | |
47 | __u8 led_def_curr; | |
48 | #define BH1770_NEUTRAL_GA 16384 /* 16384 / 16384 = 1 */ | |
49 | __u32 glass_attenuation; | |
50 | int (*setup_resources)(void); | |
51 | int (*release_resources)(void); | |
52 | }; | |
53 | #endif |