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Commit 7f394c20 authored by Shaikh Shadul's avatar Shaikh Shadul
Browse files

drivers: misc: add snapshot of APDS9930 driver 



This change adds APDS9930 ambient light and proximity driver to
configure ambient light and proximity sensors.
This snapshot is taken from commit 430da15cfdc2 ("soc: qcom:
rpm-smd-debug: initialize variables and check for return value") with
checkpatch warnings fixed.

Change-Id: If1e64cf0ade970f220fd8f6d5f577f9671192f7a
Signed-off-by: default avatarShaikh Shadul <sshadu@codeaurora.org>
parent 827c6ada

drivers/misc/Kconfig

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@@ -365,6 +365,16 @@ config SENSORS_APDS990X 
	   To compile this driver as a module, choose M here: the

	   module will be called apds990x. If unsure, say N here.



config APDS9930

	 tristate "Avago APDS9930 combined als and proximity sensors"

	 depends on I2C

	 help

	   Say Y here if you want to build a driver for Avago APDS9930

	   combined ambient light and proximity sensor chip.



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

	   module will be called apds9930. If unsure, say N here.



config HMC6352

	tristate "Honeywell HMC6352 compass"

	depends on I2C

drivers/misc/Makefile

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@@ -70,3 +70,4 @@ obj-$(CONFIG_USB_EXT_TYPE_C_PERICOM) += type-c-pericom.o 
obj-$(CONFIG_USB_EXT_TYPE_C_TI)		+= type-c-ti.o

obj-$(CONFIG_QPNP_MISC) 	+= qpnp-misc.o

obj-$(CONFIG_MEMORY_STATE_TIME) += memory_state_time.o

obj-$(CONFIG_APDS9930)		+= apds993x.o

drivers/misc/apds993x.c

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File added.

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include/linux/i2c/apds993x.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.

 */



#ifndef __APDS993X_H__

#define __APDS993X_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 apds993x_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.

 *

 */



/* POWER SUPPLY VOLTAGE RANGE */

#define APDS993X_VDD_MIN_UV  2000000

#define APDS993X_VDD_MAX_UV  3300000

#define APDS993X_VIO_MIN_UV  1750000

#define APDS993X_VIO_MAX_UV  1950000



/* Analog voltage @2.7 V */

#define AVDD_VTG_MIN_UV		3000000

#define AVDD_VTG_MAX_UV		3000000

#define AVDD_ACTIVE_LOAD_UA	15000



/* Digital voltage @1.8 V */

#define VDDIO_VTG_DIG_MIN_UV	1800000

#define VDDIO_VTG_DIG_MAX_UV	1800000

#define VDDIO_ACTIVE_LOAD_DIG_UA	10000



#define VDDIO_I2C_VTG_MIN_UV	1800000

#define VDDIO_I2C_VTG_MAX_UV	1800000

#define VDDIO_I2C_LOAD_UA		10000





struct apds993x_platform_data {

	struct apds993x_chip_factors cf;

	u8	   pdrive;

	unsigned int  ppcount;

	int    (*setup_resources)(void);

	int    (*release_resources)(void);



	int irq_num;

	int (*power)(unsigned char onoff);

	int (*init)(void);

	void (*exit)(void);

	int (*power_on)(bool);



	unsigned int prox_threshold;

	unsigned int prox_hsyteresis_threshold;

	unsigned int prox_pulse;

	unsigned int prox_gain;

	unsigned int als_threshold_hsyteresis;

	unsigned int cross_talk;

	unsigned int als_B;

	unsigned int als_C;

	unsigned int als_D;

	unsigned int alsit;

	unsigned int ga_value;

	unsigned int df_value;

	unsigned int atime;



	bool i2c_pull_up;

	bool digital_pwr_regulator;

	bool default_cal;



	unsigned int irq_gpio;

	u32 irq_gpio_flags;

};



#endif