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Diffstat (limited to 'include/linux/i2c/apds990x.h')
| -rw-r--r-- | include/linux/i2c/apds990x.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/include/linux/i2c/apds990x.h b/include/linux/i2c/apds990x.h new file mode 100644 index 000000000000..d186fcc5d257 --- /dev/null +++ b/include/linux/i2c/apds990x.h | |||
| @@ -0,0 +1,79 @@ | |||
| 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 | ||
