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[pohmelfs.git] / include / linux / i2c / bh1770glc.h
blob8b5e2df36c72632eb31d97bad5322cf98c7fc6a2
1 /*
2 * This file is part of the ROHM BH1770GLC / OSRAM SFH7770 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
21 * 02110-1301 USA
25 #ifndef __BH1770_H__
26 #define __BH1770_H__
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
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
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);
53 #endif