LXR linux/include/linux/i2c/adp8870.h

   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
 108struct 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