1/* 2 * Definitions and platform data for Analog Devices 3 * Backlight drivers ADP8860 4 * 5 * Copyright 2009-2010 Analog Devices Inc. 6 * 7 * Licensed under the GPL-2 or later. 8 */ 9 10#ifndef __LINUX_I2C_ADP8860_H 11#define __LINUX_I2C_ADP8860_H 12 13#include <linux/leds.h> 14#include <linux/types.h> 15 16#define ID_ADP8860 8860 17 18#define ADP8860_MAX_BRIGHTNESS 0x7F 19#define FLAG_OFFT_SHIFT 8 20 21/* 22 * LEDs subdevice platform data 23 */ 24 25#define ADP8860_LED_DIS_BLINK (0 << FLAG_OFFT_SHIFT) 26#define ADP8860_LED_OFFT_600ms (1 << FLAG_OFFT_SHIFT) 27#define ADP8860_LED_OFFT_1200ms (2 << FLAG_OFFT_SHIFT) 28#define ADP8860_LED_OFFT_1800ms (3 << FLAG_OFFT_SHIFT) 29 30#define ADP8860_LED_ONT_200ms 0 31#define ADP8860_LED_ONT_600ms 1 32#define ADP8860_LED_ONT_800ms 2 33#define ADP8860_LED_ONT_1200ms 3 34 35#define ADP8860_LED_D7 (7) 36#define ADP8860_LED_D6 (6) 37#define ADP8860_LED_D5 (5) 38#define ADP8860_LED_D4 (4) 39#define ADP8860_LED_D3 (3) 40#define ADP8860_LED_D2 (2) 41#define ADP8860_LED_D1 (1) 42 43/* 44 * Backlight subdevice platform data 45 */ 46 47#define ADP8860_BL_D7 (1 << 6) 48#define ADP8860_BL_D6 (1 << 5) 49#define ADP8860_BL_D5 (1 << 4) 50#define ADP8860_BL_D4 (1 << 3) 51#define ADP8860_BL_D3 (1 << 2) 52#define ADP8860_BL_D2 (1 << 1) 53#define ADP8860_BL_D1 (1 << 0) 54 55#define ADP8860_FADE_T_DIS 0 /* Fade Timer Disabled */ 56#define ADP8860_FADE_T_300ms 1 /* 0.3 Sec */ 57#define ADP8860_FADE_T_600ms 2 58#define ADP8860_FADE_T_900ms 3 59#define ADP8860_FADE_T_1200ms 4 60#define ADP8860_FADE_T_1500ms 5 61#define ADP8860_FADE_T_1800ms 6 62#define ADP8860_FADE_T_2100ms 7 63#define ADP8860_FADE_T_2400ms 8 64#define ADP8860_FADE_T_2700ms 9 65#define ADP8860_FADE_T_3000ms 10 66#define ADP8860_FADE_T_3500ms 11 67#define ADP8860_FADE_T_4000ms 12 68#define ADP8860_FADE_T_4500ms 13 69#define ADP8860_FADE_T_5000ms 14 70#define ADP8860_FADE_T_5500ms 15 /* 5.5 Sec */ 71 72#define ADP8860_FADE_LAW_LINEAR 0 73#define ADP8860_FADE_LAW_SQUARE 1 74#define ADP8860_FADE_LAW_CUBIC1 2 75#define ADP8860_FADE_LAW_CUBIC2 3 76 77#define ADP8860_BL_AMBL_FILT_80ms 0 /* Light sensor filter time */ 78#define ADP8860_BL_AMBL_FILT_160ms 1 79#define ADP8860_BL_AMBL_FILT_320ms 2 80#define ADP8860_BL_AMBL_FILT_640ms 3 81#define ADP8860_BL_AMBL_FILT_1280ms 4 82#define ADP8860_BL_AMBL_FILT_2560ms 5 83#define ADP8860_BL_AMBL_FILT_5120ms 6 84#define ADP8860_BL_AMBL_FILT_10240ms 7 /* 10.24 sec */ 85 86/* 87 * Blacklight current 0..30mA 88 */ 89#define ADP8860_BL_CUR_mA(I) ((I * 127) / 30) 90 91/* 92 * L2 comparator current 0..1106uA 93 */ 94#define ADP8860_L2_COMP_CURR_uA(I) ((I * 255) / 1106) 95 96/* 97 * L3 comparator current 0..138uA 98 */ 99#define ADP8860_L3_COMP_CURR_uA(I) ((I * 255) / 138) 100 101struct adp8860_backlight_platform_data { 102 u8 bl_led_assign; /* 1 = Backlight 0 = Individual LED */ 103 104 u8 bl_fade_in; /* Backlight Fade-In Timer */ 105 u8 bl_fade_out; /* Backlight Fade-Out Timer */ 106 u8 bl_fade_law; /* fade-on/fade-off transfer characteristic */ 107 108 u8 en_ambl_sens; /* 1 = enable ambient light sensor */ 109 u8 abml_filt; /* Light sensor filter time */ 110 111 u8 l1_daylight_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */ 112 u8 l1_daylight_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */ 113 u8 l2_office_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */ 114 u8 l2_office_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */ 115 u8 l3_dark_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */ 116 u8 l3_dark_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */ 117 118 u8 l2_trip; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */ 119 u8 l2_hyst; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */ 120 u8 l3_trip; /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */ 121 u8 l3_hyst; /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */ 122 123 /** 124 * Independent Current Sinks / LEDS 125 * Sinks not assigned to the Backlight can be exposed to 126 * user space using the LEDS CLASS interface 127 */ 128 129 int num_leds; 130 struct led_info *leds; 131 u8 led_fade_in; /* LED Fade-In Timer */ 132 u8 led_fade_out; /* LED Fade-Out Timer */ 133 u8 led_fade_law; /* fade-on/fade-off transfer characteristic */ 134 u8 led_on_time; 135 136 /** 137 * Gain down disable. Setting this option does not allow the 138 * charge pump to switch to lower gains. NOT AVAILABLE on ADP8860 139 * 1 = the charge pump doesn't switch down in gain until all LEDs are 0. 140 * The charge pump switches up in gain as needed. This feature is 141 * useful if the ADP8863 charge pump is used to drive an external load. 142 * This feature must be used when utilizing small fly capacitors 143 * (0402 or smaller). 144 * 0 = the charge pump automatically switches up and down in gain. 145 * This provides optimal efficiency, but is not suitable for driving 146 * loads that are not connected through the ADP8863 diode drivers. 147 * Additionally, the charge pump fly capacitors should be low ESR 148 * and sized 0603 or greater. 149 */ 150 151 u8 gdwn_dis; 152}; 153 154#endif /* __LINUX_I2C_ADP8860_H */ 155