diff options
Diffstat (limited to 'include/linux/platform_data')
| -rw-r--r-- | include/linux/platform_data/tsl2772.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/include/linux/platform_data/tsl2772.h b/include/linux/platform_data/tsl2772.h new file mode 100644 index 000000000000..f8ade15a35e2 --- /dev/null +++ b/include/linux/platform_data/tsl2772.h | |||
| @@ -0,0 +1,101 @@ | |||
| 1 | /* SPDX-License-Identifier: GPL-2.0+ */ | ||
| 2 | /* | ||
| 3 | * Device driver for monitoring ambient light intensity (lux) | ||
| 4 | * and proximity (prox) within the TAOS TSL2772 family of devices. | ||
| 5 | * | ||
| 6 | * Copyright (c) 2012, TAOS Corporation. | ||
| 7 | * Copyright (c) 2017-2018 Brian Masney <masneyb@onstation.org> | ||
| 8 | */ | ||
| 9 | |||
| 10 | #ifndef __TSL2772_H | ||
| 11 | #define __TSL2772_H | ||
| 12 | |||
| 13 | struct tsl2772_lux { | ||
| 14 | unsigned int ch0; | ||
| 15 | unsigned int ch1; | ||
| 16 | }; | ||
| 17 | |||
| 18 | /* Max number of segments allowable in LUX table */ | ||
| 19 | #define TSL2772_MAX_LUX_TABLE_SIZE 6 | ||
| 20 | /* The default LUX tables all have 3 elements. */ | ||
| 21 | #define TSL2772_DEF_LUX_TABLE_SZ 3 | ||
| 22 | #define TSL2772_DEFAULT_TABLE_BYTES (sizeof(struct tsl2772_lux) * \ | ||
| 23 | TSL2772_DEF_LUX_TABLE_SZ) | ||
| 24 | |||
| 25 | /* Proximity diode to use */ | ||
| 26 | #define TSL2772_DIODE0 0x01 | ||
| 27 | #define TSL2772_DIODE1 0x02 | ||
| 28 | #define TSL2772_DIODE_BOTH 0x03 | ||
| 29 | |||
| 30 | /* LED Power */ | ||
| 31 | #define TSL2772_100_mA 0x00 | ||
| 32 | #define TSL2772_50_mA 0x01 | ||
| 33 | #define TSL2772_25_mA 0x02 | ||
| 34 | #define TSL2772_13_mA 0x03 | ||
| 35 | |||
| 36 | /** | ||
| 37 | * struct tsl2772_settings - Settings for the tsl2772 driver | ||
| 38 | * @als_time: Integration time of the ALS channel ADCs in 2.73 ms | ||
| 39 | * increments. Total integration time is | ||
| 40 | * (256 - als_time) * 2.73. | ||
| 41 | * @als_gain: Index into the tsl2772_als_gain array. | ||
| 42 | * @als_gain_trim: Default gain trim to account for aperture effects. | ||
| 43 | * @wait_time: Time between proximity and ALS cycles in 2.73 | ||
| 44 | * periods. | ||
| 45 | * @prox_time: Integration time of the proximity ADC in 2.73 ms | ||
| 46 | * increments. Total integration time is | ||
| 47 | * (256 - prx_time) * 2.73. | ||
| 48 | * @prox_gain: Index into the tsl2772_prx_gain array. | ||
| 49 | * @als_prox_config: The value of the ALS / Proximity configuration | ||
| 50 | * register. | ||
| 51 | * @als_cal_target: Known external ALS reading for calibration. | ||
| 52 | * @als_persistence: H/W Filters, Number of 'out of limits' ALS readings. | ||
| 53 | * @als_interrupt_en: Enable/Disable ALS interrupts | ||
| 54 | * @als_thresh_low: CH0 'low' count to trigger interrupt. | ||
| 55 | * @als_thresh_high: CH0 'high' count to trigger interrupt. | ||
| 56 | * @prox_persistence: H/W Filters, Number of 'out of limits' proximity | ||
| 57 | * readings. | ||
| 58 | * @prox_interrupt_en: Enable/Disable proximity interrupts. | ||
| 59 | * @prox_thres_low: Low threshold proximity detection. | ||
| 60 | * @prox_thres_high: High threshold proximity detection. | ||
| 61 | * @prox_pulse_count: Number if proximity emitter pulses. | ||
| 62 | * @prox_max_samples_cal: The number of samples that are taken when performing | ||
| 63 | * a proximity calibration. | ||
| 64 | * @prox_diode Which diode(s) to use for driving the external | ||
| 65 | * LED(s) for proximity sensing. | ||
| 66 | * @prox_power The amount of power to use for the external LED(s). | ||
| 67 | */ | ||
| 68 | struct tsl2772_settings { | ||
| 69 | int als_time; | ||
| 70 | int als_gain; | ||
| 71 | int als_gain_trim; | ||
| 72 | int wait_time; | ||
| 73 | int prox_time; | ||
| 74 | int prox_gain; | ||
| 75 | int als_prox_config; | ||
| 76 | int als_cal_target; | ||
| 77 | u8 als_persistence; | ||
| 78 | bool als_interrupt_en; | ||
| 79 | int als_thresh_low; | ||
| 80 | int als_thresh_high; | ||
| 81 | u8 prox_persistence; | ||
| 82 | bool prox_interrupt_en; | ||
| 83 | int prox_thres_low; | ||
| 84 | int prox_thres_high; | ||
| 85 | int prox_pulse_count; | ||
| 86 | int prox_max_samples_cal; | ||
| 87 | int prox_diode; | ||
| 88 | int prox_power; | ||
| 89 | }; | ||
| 90 | |||
| 91 | /** | ||
| 92 | * struct tsl2772_platform_data - Platform callback, glass and defaults | ||
| 93 | * @platform_lux_table: Device specific glass coefficents | ||
| 94 | * @platform_default_settings: Device specific power on defaults | ||
| 95 | */ | ||
| 96 | struct tsl2772_platform_data { | ||
| 97 | struct tsl2772_lux platform_lux_table[TSL2772_MAX_LUX_TABLE_SIZE]; | ||
| 98 | struct tsl2772_settings *platform_default_settings; | ||
| 99 | }; | ||
| 100 | |||
| 101 | #endif /* __TSL2772_H */ | ||