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65 lines
1.8 KiB
65 lines
1.8 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* This file is part of the APDS990x sensor driver. |
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* Chip is combined proximity and ambient light sensor. |
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* |
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* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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* |
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* Contact: Samu Onkalo <[email protected]> |
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*/ |
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#ifndef __APDS990X_H__ |
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#define __APDS990X_H__ |
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#define APDS_IRLED_CURR_12mA 0x3 |
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#define APDS_IRLED_CURR_25mA 0x2 |
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#define APDS_IRLED_CURR_50mA 0x1 |
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#define APDS_IRLED_CURR_100mA 0x0 |
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/** |
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* struct apds990x_chip_factors - defines effect of the cover window |
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* @ga: Total glass attenuation |
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* @cf1: clear channel factor 1 for raw to lux conversion |
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* @irf1: IR channel factor 1 for raw to lux conversion |
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* @cf2: clear channel factor 2 for raw to lux conversion |
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* @irf2: IR channel factor 2 for raw to lux conversion |
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* @df: device factor for conversion formulas |
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* |
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* Structure for tuning ALS calculation to match with environment. |
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* Values depend on the material above the sensor and the sensor |
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* itself. If the GA is zero, driver will use uncovered sensor default values |
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* format: decimal value * APDS_PARAM_SCALE except df which is plain integer. |
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*/ |
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#define APDS_PARAM_SCALE 4096 |
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struct apds990x_chip_factors { |
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int ga; |
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int cf1; |
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int irf1; |
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int cf2; |
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int irf2; |
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int df; |
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}; |
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/** |
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* struct apds990x_platform_data - platform data for apsd990x.c driver |
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* @cf: chip factor data |
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* @pddrive: IR-led driving current |
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* @ppcount: number of IR pulses used for proximity estimation |
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* @setup_resources: interrupt line setup call back function |
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* @release_resources: interrupt line release call back function |
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* |
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* Proximity detection result depends heavily on correct ppcount, pdrive |
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* and cover window. |
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* |
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*/ |
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struct apds990x_platform_data { |
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struct apds990x_chip_factors cf; |
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u8 pdrive; |
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u8 ppcount; |
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int (*setup_resources)(void); |
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int (*release_resources)(void); |
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}; |
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#endif
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