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Commit 190420ab authored by Samu Onkalo's avatar Samu Onkalo Committed by Linus Torvalds
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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: default avatarSamu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: default avatarJonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 4b068de9

drivers/misc/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -315,6 +315,16 @@ config SENSORS_BH1780 
	  This driver can also be built as a module.  If so, the module

	  will be called bh1780gli.



config SENSORS_BH1770

         tristate "BH1770GLC / SFH7770 combined ALS - Proximity sensor"

         depends on I2C

         ---help---

           Say Y here if you want to build a driver for BH1770GLC (ROHM) or

	   SFH7770 (Osram) combined ambient light and proximity sensor chip.



           To compile this driver as a module, choose M here: the

           module will be called bh1770glc. If unsure, say N here.



config HMC6352

	tristate "Honeywell HMC6352 compass"

	depends on I2C

drivers/misc/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ obj-$(CONFIG_TIFM_CORE) += tifm_core.o 
obj-$(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_SGI_IOC4)		+= ioc4.o

obj-$(CONFIG_ENCLOSURE_SERVICES) += enclosure.o

obj-$(CONFIG_KGDB_TESTS)	+= kgdbts.o

drivers/misc/bh1770glc.c

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+1413 −0

File added.

Preview size limit exceeded, changes collapsed.

include/linux/i2c/bh1770glc.h

0 → 100644
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/*

 * 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 <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 __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