154 lines
4.6 KiB
C
154 lines
4.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Definitions and platform data for Analog Devices
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* Backlight drivers ADP8860
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*
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* Copyright 2009-2010 Analog Devices Inc.
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*/
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#ifndef __LINUX_I2C_ADP8860_H
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#define __LINUX_I2C_ADP8860_H
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#include <linux/leds.h>
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#include <linux/types.h>
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#define ID_ADP8860 8860
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#define ADP8860_MAX_BRIGHTNESS 0x7F
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#define FLAG_OFFT_SHIFT 8
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/*
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* LEDs subdevice platform data
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*/
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#define ADP8860_LED_DIS_BLINK (0 << FLAG_OFFT_SHIFT)
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#define ADP8860_LED_OFFT_600ms (1 << FLAG_OFFT_SHIFT)
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#define ADP8860_LED_OFFT_1200ms (2 << FLAG_OFFT_SHIFT)
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#define ADP8860_LED_OFFT_1800ms (3 << FLAG_OFFT_SHIFT)
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#define ADP8860_LED_ONT_200ms 0
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#define ADP8860_LED_ONT_600ms 1
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#define ADP8860_LED_ONT_800ms 2
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#define ADP8860_LED_ONT_1200ms 3
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#define ADP8860_LED_D7 (7)
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#define ADP8860_LED_D6 (6)
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#define ADP8860_LED_D5 (5)
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#define ADP8860_LED_D4 (4)
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#define ADP8860_LED_D3 (3)
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#define ADP8860_LED_D2 (2)
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#define ADP8860_LED_D1 (1)
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/*
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* Backlight subdevice platform data
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*/
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#define ADP8860_BL_D7 (1 << 6)
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#define ADP8860_BL_D6 (1 << 5)
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#define ADP8860_BL_D5 (1 << 4)
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#define ADP8860_BL_D4 (1 << 3)
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#define ADP8860_BL_D3 (1 << 2)
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#define ADP8860_BL_D2 (1 << 1)
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#define ADP8860_BL_D1 (1 << 0)
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#define ADP8860_FADE_T_DIS 0 /* Fade Timer Disabled */
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#define ADP8860_FADE_T_300ms 1 /* 0.3 Sec */
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#define ADP8860_FADE_T_600ms 2
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#define ADP8860_FADE_T_900ms 3
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#define ADP8860_FADE_T_1200ms 4
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#define ADP8860_FADE_T_1500ms 5
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#define ADP8860_FADE_T_1800ms 6
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#define ADP8860_FADE_T_2100ms 7
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#define ADP8860_FADE_T_2400ms 8
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#define ADP8860_FADE_T_2700ms 9
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#define ADP8860_FADE_T_3000ms 10
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#define ADP8860_FADE_T_3500ms 11
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#define ADP8860_FADE_T_4000ms 12
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#define ADP8860_FADE_T_4500ms 13
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#define ADP8860_FADE_T_5000ms 14
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#define ADP8860_FADE_T_5500ms 15 /* 5.5 Sec */
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#define ADP8860_FADE_LAW_LINEAR 0
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#define ADP8860_FADE_LAW_SQUARE 1
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#define ADP8860_FADE_LAW_CUBIC1 2
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#define ADP8860_FADE_LAW_CUBIC2 3
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#define ADP8860_BL_AMBL_FILT_80ms 0 /* Light sensor filter time */
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#define ADP8860_BL_AMBL_FILT_160ms 1
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#define ADP8860_BL_AMBL_FILT_320ms 2
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#define ADP8860_BL_AMBL_FILT_640ms 3
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#define ADP8860_BL_AMBL_FILT_1280ms 4
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#define ADP8860_BL_AMBL_FILT_2560ms 5
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#define ADP8860_BL_AMBL_FILT_5120ms 6
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#define ADP8860_BL_AMBL_FILT_10240ms 7 /* 10.24 sec */
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/*
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* Blacklight current 0..30mA
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*/
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#define ADP8860_BL_CUR_mA(I) ((I * 127) / 30)
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/*
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* L2 comparator current 0..1106uA
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*/
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#define ADP8860_L2_COMP_CURR_uA(I) ((I * 255) / 1106)
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/*
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* L3 comparator current 0..138uA
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*/
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#define ADP8860_L3_COMP_CURR_uA(I) ((I * 255) / 138)
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struct adp8860_backlight_platform_data {
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u8 bl_led_assign; /* 1 = Backlight 0 = Individual LED */
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u8 bl_fade_in; /* Backlight Fade-In Timer */
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u8 bl_fade_out; /* Backlight Fade-Out Timer */
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u8 bl_fade_law; /* fade-on/fade-off transfer characteristic */
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u8 en_ambl_sens; /* 1 = enable ambient light sensor */
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u8 abml_filt; /* Light sensor filter time */
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u8 l1_daylight_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
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u8 l1_daylight_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
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u8 l2_office_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
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u8 l2_office_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
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u8 l3_dark_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
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u8 l3_dark_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
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u8 l2_trip; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */
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u8 l2_hyst; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */
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u8 l3_trip; /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */
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u8 l3_hyst; /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */
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/**
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* Independent Current Sinks / LEDS
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* Sinks not assigned to the Backlight can be exposed to
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* user space using the LEDS CLASS interface
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*/
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int num_leds;
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struct led_info *leds;
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u8 led_fade_in; /* LED Fade-In Timer */
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u8 led_fade_out; /* LED Fade-Out Timer */
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u8 led_fade_law; /* fade-on/fade-off transfer characteristic */
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u8 led_on_time;
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/**
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* Gain down disable. Setting this option does not allow the
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* charge pump to switch to lower gains. NOT AVAILABLE on ADP8860
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* 1 = the charge pump doesn't switch down in gain until all LEDs are 0.
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* The charge pump switches up in gain as needed. This feature is
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* useful if the ADP8863 charge pump is used to drive an external load.
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* This feature must be used when utilizing small fly capacitors
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* (0402 or smaller).
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* 0 = the charge pump automatically switches up and down in gain.
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* This provides optimal efficiency, but is not suitable for driving
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* loads that are not connected through the ADP8863 diode drivers.
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* Additionally, the charge pump fly capacitors should be low ESR
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* and sized 0603 or greater.
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*/
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u8 gdwn_dis;
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};
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#endif /* __LINUX_I2C_ADP8860_H */
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