misc: Add AMS TCS3490 sensor driver from Sony kernel (e91b5321) · Commits · e / devices / android_kernel_sony_msm8998

drivers/misc/Kconfig

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		@@ -666,6 +666,15 @@ config TOF_SENSOR
		To compile this driver as a module, choose M here: the
		module will be called tof_sensor.

		config SENSORS_TCS3490
		tristate "AMS TCS3490 Sensor Driver"
		depends on I2C
		default n
		help
		If you say yes here you get support for the AMS tcs3490,
		ALS and color light sensors.
		This driver can also be build as module.

		config SIM_DETECT
		tristate "SIM_DETECT driver support"
		default n

drivers/misc/Makefile

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		@@ -73,6 +73,7 @@ obj-$(CONFIG_QPNP_MISC) += qpnp-misc.o
		obj-$(CONFIG_MEMORY_STATE_TIME) += memory_state_time.o
		obj-$(CONFIG_LDO_VIBRATOR) += ldo_vibrator.o
		obj-$(CONFIG_TOF_SENSOR) += tof_sensor.o
		obj-$(CONFIG_SENSORS_TCS3490) += tcs3490.o
		obj-$(CONFIG_RAMDUMP_TAGS) += rdtags.o
		obj-$(CONFIG_RAMDUMP_MEMDESC) += ramdump_mem_desc.o
		obj-$(CONFIG_POWERKEY_FORCECRASH) += powerkey_forcecrash.o

drivers/misc/tcs3490.c

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File added.

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drivers/misc/tcs3490.h

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		/*
		* Copyright (C) 2016 Sony Mobile Communications Inc.
		*
		* 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.
		*/
		/*
		* Device driver for monitoring ambient light intensity in (lux), RGB, and
		* color temperature (in kelvin) within the AMS-TAOS TCS family of devices.
		*
		* Copyright (c) 2016, AMS-TAOS USA, Inc.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		* the Free Software Foundation; either version 2 of the License, or
		* (at your option) any later version.
		*
		* 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
		*/

		#ifndef __TCS3490_H
		#define __TCS3490_H

		#include <linux/types.h>

		/* Max number of segments allowable in LUX table */
		#define TCS3490_MAX_LUX_TABLE_SIZE 9
		#define MAX_DEFAULT_TABLE_BYTES (sizeof(int) * TCS3490_MAX_LUX_TABLE_SIZE)

		/* Default LUX and Color coefficients */

		#define D_Factor 304
		#define R_Coef 205
		#define G_Coef 1024
		#define B_Coef (-184)
		#define CT_Coef (4659)
		#define CT_Offset (1023)

		#define D_Factor1 304
		#define R_Coef1 205
		#define G_Coef1 1024
		#define B_Coef1 (-184)
		#define CT_Coef1 (4659)
		#define CT_Offset1 (1023)

		struct device;

		enum tcs3490_pwr_state {
		POWER_ON,
		POWER_OFF,
		POWER_STANDBY,
		};

		enum tcs3490_ctrl_reg {
		AGAIN_1 = (0 << 0),
		AGAIN_4 = (1 << 0),
		AGAIN_16 = (2 << 0),
		AGAIN_64 = (3 << 0),
		};

		#define ALS_PERSIST(p) (((p) & 0xf) << 3)

		struct tcs3490_parameters {
		u8 als_time;
		u16 als_deltaP;
		u8 als_gain;
		u8 persist;
		};

		struct lux_segment {
		int d_factor;
		int r_coef;
		int g_coef;
		int b_coef;
		int ct_coef;
		int ct_offset;
		};


		struct tcs3490_i2c_platform_data {
		/* The following callback for power events received and handled by
		the driver. Currently only for SUSPEND and RESUME */
		int (platform_power)(struct device dev, enum tcs3490_pwr_state state);
		int (*platform_init)(void);
		void (platform_teardown)(struct device dev);
		char const *als_name;
		struct tcs3490_parameters parameters;
		bool als_can_wake;
		struct lux_segment *segment;
		int segment_num;
		};

		#endif /* __TCS3490_H */