drivers/misc: driver for APDS990X ALS and proximity sensors (92b1f84d) · Commits · 戴 / test

drivers/misc/Kconfig

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		@@ -325,6 +325,17 @@ config SENSORS_BH1770
		To compile this driver as a module, choose M here: the
		module will be called bh1770glc. If unsure, say N here.

		config SENSORS_APDS990X
		tristate "APDS990X combined als and proximity sensors"
		depends on I2C
		default n
		---help---
		Say Y here if you want to build a driver for Avago APDS990x
		combined ambient light and proximity sensor chip.

		To compile this driver as a module, choose M here: the
		module will be called apds990x. If unsure, say N here.

		config HMC6352
		tristate "Honeywell HMC6352 compass"
		depends on I2C

drivers/misc/Makefile

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		@@ -17,6 +17,7 @@ obj-$(CONFIG_TIFM_7XX1) += tifm_7xx1.o
		obj-$(CONFIG_PHANTOM) += phantom.o
		obj-$(CONFIG_SENSORS_BH1780) += bh1780gli.o
		obj-$(CONFIG_SENSORS_BH1770) += bh1770glc.o
		obj-$(CONFIG_SENSORS_APDS990X) += apds990x.o
		obj-$(CONFIG_SGI_IOC4) += ioc4.o
		obj-$(CONFIG_ENCLOSURE_SERVICES) += enclosure.o
		obj-$(CONFIG_KGDB_TESTS) += kgdbts.o

drivers/misc/apds990x.c

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File added.

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include/linux/i2c/apds990x.h

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		/*
		* This file is part of the APDS990x sensor driver.
		* Chip is combined proximity and ambient light sensor.
		*
		* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
		*
		* Contact: Samu Onkalo <samu.p.onkalo@nokia.com>
		*
		* 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 __APDS990X_H__
		#define __APDS990X_H__


		#define APDS_IRLED_CURR_12mA 0x3
		#define APDS_IRLED_CURR_25mA 0x2
		#define APDS_IRLED_CURR_50mA 0x1
		#define APDS_IRLED_CURR_100mA 0x0

		/**
		* struct apds990x_chip_factors - defines effect of the cover window
		* @ga: Total glass attenuation
		* @cf1: clear channel factor 1 for raw to lux conversion
		* @irf1: IR channel factor 1 for raw to lux conversion
		* @cf2: clear channel factor 2 for raw to lux conversion
		* @irf2: IR channel factor 2 for raw to lux conversion
		* @df: device factor for conversion formulas
		*
		* Structure for tuning ALS calculation to match with environment.
		* Values depend on the material above the sensor and the sensor
		* itself. If the GA is zero, driver will use uncovered sensor default values
		* format: decimal value * APDS_PARAM_SCALE except df which is plain integer.
		*/
		#define APDS_PARAM_SCALE 4096
		struct apds990x_chip_factors {
		int ga;
		int cf1;
		int irf1;
		int cf2;
		int irf2;
		int df;
		};

		/**
		* struct apds990x_platform_data - platform data for apsd990x.c driver
		* @cf: chip factor data
		* @pddrive: IR-led driving current
		* @ppcount: number of IR pulses used for proximity estimation
		* @setup_resources: interrupt line setup call back function
		* @release_resources: interrupt line release call back function
		*
		* Proximity detection result depends heavily on correct ppcount, pdrive
		* and cover window.
		*
		*/

		struct apds990x_platform_data {
		struct apds990x_chip_factors cf;
		u8 pdrive;
		u8 ppcount;
		int (*setup_resources)(void);
		int (*release_resources)(void);
		};

		#endif

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