From 190420ab34ab4c077c641893ac19f364cf3606e4 Mon Sep 17 00:00:00 2001 From: Samu Onkalo Date: Tue, 26 Oct 2010 14:22:37 -0700 Subject: drivers/misc: driver for bh1770glc / sfh7770 ALS and proximity sensor 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 Acked-by: Jonathan Cameron Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/i2c/bh1770glc.h | 53 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 include/linux/i2c/bh1770glc.h (limited to 'include/linux') diff --git a/include/linux/i2c/bh1770glc.h b/include/linux/i2c/bh1770glc.h new file mode 100644 index 00000000000..8b5e2df36c7 --- /dev/null +++ b/include/linux/i2c/bh1770glc.h @@ -0,0 +1,53 @@ +/* + * This file is part of the ROHM BH1770GLC / OSRAM SFH7770 sensor driver. + * Chip is combined proximity and ambient light sensor. + * + * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). + * + * Contact: Samu Onkalo + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __BH1770_H__ +#define __BH1770_H__ + +/** + * struct bh1770_platform_data - platform data for bh1770glc driver + * @led_def_curr: IR led driving current. + * @glass_attenuation: Attenuation factor for covering window. + * @setup_resources: Call back for interrupt line setup function + * @release_resources: Call back for interrupte line release function + * + * Example of glass attenuation: 16384 * 385 / 100 means attenuation factor + * of 3.85. i.e. light_above_sensor = light_above_cover_window / 3.85 + */ + +struct bh1770_platform_data { +#define BH1770_LED_5mA 0 +#define BH1770_LED_10mA 1 +#define BH1770_LED_20mA 2 +#define BH1770_LED_50mA 3 +#define BH1770_LED_100mA 4 +#define BH1770_LED_150mA 5 +#define BH1770_LED_200mA 6 + __u8 led_def_curr; +#define BH1770_NEUTRAL_GA 16384 /* 16384 / 16384 = 1 */ + __u32 glass_attenuation; + int (*setup_resources)(void); + int (*release_resources)(void); +}; +#endif -- cgit v1.2.3-70-g09d2