1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * This file is part of the APDS990x sensor driver. 4 * Chip is combined proximity and ambient light sensor. 5 * 6 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). 7 * 8 * Contact: Samu Onkalo <samu.p.onkalo@nokia.com> 9 */ 10 11 #ifndef __APDS990X_H__ 12 #define __APDS990X_H__ 13 14 15 #define APDS_IRLED_CURR_12mA 0x3 16 #define APDS_IRLED_CURR_25mA 0x2 17 #define APDS_IRLED_CURR_50mA 0x1 18 #define APDS_IRLED_CURR_100mA 0x0 19 20 /** 21 * struct apds990x_chip_factors - defines effect of the cover window 22 * @ga: Total glass attenuation 23 * @cf1: clear channel factor 1 for raw to lux conversion 24 * @irf1: IR channel factor 1 for raw to lux conversion 25 * @cf2: clear channel factor 2 for raw to lux conversion 26 * @irf2: IR channel factor 2 for raw to lux conversion 27 * @df: device factor for conversion formulas 28 * 29 * Structure for tuning ALS calculation to match with environment. 30 * Values depend on the material above the sensor and the sensor 31 * itself. If the GA is zero, driver will use uncovered sensor default values 32 * format: decimal value * APDS_PARAM_SCALE except df which is plain integer. 33 */ 34 #define APDS_PARAM_SCALE 4096 35 struct apds990x_chip_factors { 36 int ga; 37 int cf1; 38 int irf1; 39 int cf2; 40 int irf2; 41 int df; 42 }; 43 44 /** 45 * struct apds990x_platform_data - platform data for apsd990x.c driver 46 * @cf: chip factor data 47 * @pddrive: IR-led driving current 48 * @ppcount: number of IR pulses used for proximity estimation 49 * @setup_resources: interrupt line setup call back function 50 * @release_resources: interrupt line release call back function 51 * 52 * Proximity detection result depends heavily on correct ppcount, pdrive 53 * and cover window. 54 * 55 */ 56 57 struct apds990x_platform_data { 58 struct apds990x_chip_factors cf; 59 u8 pdrive; 60 u8 ppcount; 61 int (*setup_resources)(void); 62 int (*release_resources)(void); 63 }; 64 65 #endif 66