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190420ab34
This is a driver for ROHM BH1770GLC and OSRAM SFH7770 combined ALS and proximity sensor. Interface is sysfs based. The driver uses interrupts to provide new data. The driver supports pm_runtime and regulator frameworks. See Documentation/misc-devices/bh1770glc.txt for details Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/*
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* This file is part of the ROHM BH1770GLC / OSRAM SFH7770 sensor driver.
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* Chip is combined proximity and ambient light sensor.
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*
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* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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*
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* Contact: Samu Onkalo <samu.p.onkalo@nokia.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#ifndef __BH1770_H__
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#define __BH1770_H__
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/**
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* struct bh1770_platform_data - platform data for bh1770glc driver
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* @led_def_curr: IR led driving current.
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* @glass_attenuation: Attenuation factor for covering window.
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* @setup_resources: Call back for interrupt line setup function
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* @release_resources: Call back for interrupte line release function
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*
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* Example of glass attenuation: 16384 * 385 / 100 means attenuation factor
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* of 3.85. i.e. light_above_sensor = light_above_cover_window / 3.85
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*/
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struct bh1770_platform_data {
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#define BH1770_LED_5mA 0
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#define BH1770_LED_10mA 1
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#define BH1770_LED_20mA 2
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#define BH1770_LED_50mA 3
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#define BH1770_LED_100mA 4
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#define BH1770_LED_150mA 5
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#define BH1770_LED_200mA 6
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__u8 led_def_curr;
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#define BH1770_NEUTRAL_GA 16384 /* 16384 / 16384 = 1 */
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__u32 glass_attenuation;
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int (*setup_resources)(void);
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int (*release_resources)(void);
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};
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#endif
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