1 /* 2 * This file is part of the APDS990x sensor driver. 3 * Chip is combined proximity and ambient light sensor. 4 * 5 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). 6 * 7 * Contact: Samu Onkalo <samu.p.onkalo@nokia.com> 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License 11 * version 2 as published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 21 * 02110-1301 USA 22 * 23 */ 24 25 #ifndef __APDS990X_H__ 26 #define __APDS990X_H__ 27 28 29 #define APDS_IRLED_CURR_12mA 0x3 30 #define APDS_IRLED_CURR_25mA 0x2 31 #define APDS_IRLED_CURR_50mA 0x1 32 #define APDS_IRLED_CURR_100mA 0x0 33 34 /** 35 * struct apds990x_chip_factors - defines effect of the cover window 36 * @ga: Total glass attenuation 37 * @cf1: clear channel factor 1 for raw to lux conversion 38 * @irf1: IR channel factor 1 for raw to lux conversion 39 * @cf2: clear channel factor 2 for raw to lux conversion 40 * @irf2: IR channel factor 2 for raw to lux conversion 41 * @df: device factor for conversion formulas 42 * 43 * Structure for tuning ALS calculation to match with environment. 44 * Values depend on the material above the sensor and the sensor 45 * itself. If the GA is zero, driver will use uncovered sensor default values 46 * format: decimal value * APDS_PARAM_SCALE except df which is plain integer. 47 */ 48 #define APDS_PARAM_SCALE 4096 49 struct apds990x_chip_factors { 50 int ga; 51 int cf1; 52 int irf1; 53 int cf2; 54 int irf2; 55 int df; 56 }; 57 58 /** 59 * struct apds990x_platform_data - platform data for apsd990x.c driver 60 * @cf: chip factor data 61 * @pddrive: IR-led driving current 62 * @ppcount: number of IR pulses used for proximity estimation 63 * @setup_resources: interrupt line setup call back function 64 * @release_resources: interrupt line release call back function 65 * 66 * Proximity detection result depends heavily on correct ppcount, pdrive 67 * and cover window. 68 * 69 */ 70 71 struct apds990x_platform_data { 72 struct apds990x_chip_factors cf; 73 u8 pdrive; 74 u8 ppcount; 75 int (*setup_resources)(void); 76 int (*release_resources)(void); 77 }; 78 79 #endif 80