1 /* 2 * Definitions and platform data for Analog Devices 3 * Backlight drivers ADP8870 4 * 5 * Copyright 2009-2010 Analog Devices Inc. 6 * 7 * Licensed under the GPL-2 or later. 8 */ 9 10 #ifndef __LINUX_I2C_ADP8870_H 11 #define __LINUX_I2C_ADP8870_H 12 13 #define ID_ADP8870 8870 14 15 #define ADP8870_MAX_BRIGHTNESS 0x7F 16 #define FLAG_OFFT_SHIFT 8 17 18 /* 19 * LEDs subdevice platform data 20 */ 21 22 #define ADP8870_LED_DIS_BLINK (0 << FLAG_OFFT_SHIFT) 23 #define ADP8870_LED_OFFT_600ms (1 << FLAG_OFFT_SHIFT) 24 #define ADP8870_LED_OFFT_1200ms (2 << FLAG_OFFT_SHIFT) 25 #define ADP8870_LED_OFFT_1800ms (3 << FLAG_OFFT_SHIFT) 26 27 #define ADP8870_LED_ONT_200ms 0 28 #define ADP8870_LED_ONT_600ms 1 29 #define ADP8870_LED_ONT_800ms 2 30 #define ADP8870_LED_ONT_1200ms 3 31 32 #define ADP8870_LED_D7 (7) 33 #define ADP8870_LED_D6 (6) 34 #define ADP8870_LED_D5 (5) 35 #define ADP8870_LED_D4 (4) 36 #define ADP8870_LED_D3 (3) 37 #define ADP8870_LED_D2 (2) 38 #define ADP8870_LED_D1 (1) 39 40 /* 41 * Backlight subdevice platform data 42 */ 43 44 #define ADP8870_BL_D7 (1 << 6) 45 #define ADP8870_BL_D6 (1 << 5) 46 #define ADP8870_BL_D5 (1 << 4) 47 #define ADP8870_BL_D4 (1 << 3) 48 #define ADP8870_BL_D3 (1 << 2) 49 #define ADP8870_BL_D2 (1 << 1) 50 #define ADP8870_BL_D1 (1 << 0) 51 52 #define ADP8870_FADE_T_DIS 0 /* Fade Timer Disabled */ 53 #define ADP8870_FADE_T_300ms 1 /* 0.3 Sec */ 54 #define ADP8870_FADE_T_600ms 2 55 #define ADP8870_FADE_T_900ms 3 56 #define ADP8870_FADE_T_1200ms 4 57 #define ADP8870_FADE_T_1500ms 5 58 #define ADP8870_FADE_T_1800ms 6 59 #define ADP8870_FADE_T_2100ms 7 60 #define ADP8870_FADE_T_2400ms 8 61 #define ADP8870_FADE_T_2700ms 9 62 #define ADP8870_FADE_T_3000ms 10 63 #define ADP8870_FADE_T_3500ms 11 64 #define ADP8870_FADE_T_4000ms 12 65 #define ADP8870_FADE_T_4500ms 13 66 #define ADP8870_FADE_T_5000ms 14 67 #define ADP8870_FADE_T_5500ms 15 /* 5.5 Sec */ 68 69 #define ADP8870_FADE_LAW_LINEAR 0 70 #define ADP8870_FADE_LAW_SQUARE 1 71 #define ADP8870_FADE_LAW_CUBIC1 2 72 #define ADP8870_FADE_LAW_CUBIC2 3 73 74 #define ADP8870_BL_AMBL_FILT_80ms 0 /* Light sensor filter time */ 75 #define ADP8870_BL_AMBL_FILT_160ms 1 76 #define ADP8870_BL_AMBL_FILT_320ms 2 77 #define ADP8870_BL_AMBL_FILT_640ms 3 78 #define ADP8870_BL_AMBL_FILT_1280ms 4 79 #define ADP8870_BL_AMBL_FILT_2560ms 5 80 #define ADP8870_BL_AMBL_FILT_5120ms 6 81 #define ADP8870_BL_AMBL_FILT_10240ms 7 /* 10.24 sec */ 82 83 /* 84 * Blacklight current 0..30mA 85 */ 86 #define ADP8870_BL_CUR_mA(I) ((I * 127) / 30) 87 88 /* 89 * L2 comparator current 0..1106uA 90 */ 91 #define ADP8870_L2_COMP_CURR_uA(I) ((I * 255) / 1106) 92 93 /* 94 * L3 comparator current 0..551uA 95 */ 96 #define ADP8870_L3_COMP_CURR_uA(I) ((I * 255) / 551) 97 98 /* 99 * L4 comparator current 0..275uA 100 */ 101 #define ADP8870_L4_COMP_CURR_uA(I) ((I * 255) / 275) 102 103 /* 104 * L5 comparator current 0..138uA 105 */ 106 #define ADP8870_L5_COMP_CURR_uA(I) ((I * 255) / 138) 107 108 struct adp8870_backlight_platform_data { 109 u8 bl_led_assign; /* 1 = Backlight 0 = Individual LED */ 110 u8 pwm_assign; /* 1 = Enables PWM mode */ 111 112 u8 bl_fade_in; /* Backlight Fade-In Timer */ 113 u8 bl_fade_out; /* Backlight Fade-Out Timer */ 114 u8 bl_fade_law; /* fade-on/fade-off transfer characteristic */ 115 116 u8 en_ambl_sens; /* 1 = enable ambient light sensor */ 117 u8 abml_filt; /* Light sensor filter time */ 118 119 u8 l1_daylight_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */ 120 u8 l1_daylight_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */ 121 u8 l2_bright_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */ 122 u8 l2_bright_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */ 123 u8 l3_office_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */ 124 u8 l3_office_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */ 125 u8 l4_indoor_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */ 126 u8 l4_indor_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */ 127 u8 l5_dark_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */ 128 u8 l5_dark_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */ 129 130 u8 l2_trip; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */ 131 u8 l2_hyst; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */ 132 u8 l3_trip; /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */ 133 u8 l3_hyst; /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */ 134 u8 l4_trip; /* use L4_COMP_CURR_uA(I) 0 <= I <= 275 uA */ 135 u8 l4_hyst; /* use L4_COMP_CURR_uA(I) 0 <= I <= 275 uA */ 136 u8 l5_trip; /* use L5_COMP_CURR_uA(I) 0 <= I <= 138 uA */ 137 u8 l5_hyst; /* use L6_COMP_CURR_uA(I) 0 <= I <= 138 uA */ 138 139 /** 140 * Independent Current Sinks / LEDS 141 * Sinks not assigned to the Backlight can be exposed to 142 * user space using the LEDS CLASS interface 143 */ 144 145 int num_leds; 146 struct led_info *leds; 147 u8 led_fade_in; /* LED Fade-In Timer */ 148 u8 led_fade_out; /* LED Fade-Out Timer */ 149 u8 led_fade_law; /* fade-on/fade-off transfer characteristic */ 150 u8 led_on_time; 151 }; 152 153 #endif /* __LINUX_I2C_ADP8870_H */ 154