adp8860.h

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/*
 * Definitions and platform data for Analog Devices
 * Backlight drivers ADP8860
 *
 * Copyright 2009-2010 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#ifndef __LINUX_I2C_ADP8860_H
#define __LINUX_I2C_ADP8860_H

#include <linux/leds.h>
#include <linux/types.h>

#define ID_ADP8860      8860

#define ADP8860_MAX_BRIGHTNESS  0x7F
#define FLAG_OFFT_SHIFT 8

/*
 * LEDs subdevice platform data
 */

#define ADP8860_LED_DIS_BLINK   (0 << FLAG_OFFT_SHIFT)
#define ADP8860_LED_OFFT_600ms  (1 << FLAG_OFFT_SHIFT)
#define ADP8860_LED_OFFT_1200ms (2 << FLAG_OFFT_SHIFT)
#define ADP8860_LED_OFFT_1800ms (3 << FLAG_OFFT_SHIFT)

#define ADP8860_LED_ONT_200ms   0
#define ADP8860_LED_ONT_600ms   1
#define ADP8860_LED_ONT_800ms   2
#define ADP8860_LED_ONT_1200ms  3

#define ADP8860_LED_D7      (7)
#define ADP8860_LED_D6      (6)
#define ADP8860_LED_D5      (5)
#define ADP8860_LED_D4      (4)
#define ADP8860_LED_D3      (3)
#define ADP8860_LED_D2      (2)
#define ADP8860_LED_D1      (1)

/*
 * Backlight subdevice platform data
 */

#define ADP8860_BL_D7       (1 << 6)
#define ADP8860_BL_D6       (1 << 5)
#define ADP8860_BL_D5       (1 << 4)
#define ADP8860_BL_D4       (1 << 3)
#define ADP8860_BL_D3       (1 << 2)
#define ADP8860_BL_D2       (1 << 1)
#define ADP8860_BL_D1       (1 << 0)

#define ADP8860_FADE_T_DIS  0   /* Fade Timer Disabled */
#define ADP8860_FADE_T_300ms    1   /* 0.3 Sec */
#define ADP8860_FADE_T_600ms    2
#define ADP8860_FADE_T_900ms    3
#define ADP8860_FADE_T_1200ms   4
#define ADP8860_FADE_T_1500ms   5
#define ADP8860_FADE_T_1800ms   6
#define ADP8860_FADE_T_2100ms   7
#define ADP8860_FADE_T_2400ms   8
#define ADP8860_FADE_T_2700ms   9
#define ADP8860_FADE_T_3000ms   10
#define ADP8860_FADE_T_3500ms   11
#define ADP8860_FADE_T_4000ms   12
#define ADP8860_FADE_T_4500ms   13
#define ADP8860_FADE_T_5000ms   14
#define ADP8860_FADE_T_5500ms   15  /* 5.5 Sec */

#define ADP8860_FADE_LAW_LINEAR 0
#define ADP8860_FADE_LAW_SQUARE 1
#define ADP8860_FADE_LAW_CUBIC1 2
#define ADP8860_FADE_LAW_CUBIC2 3

#define ADP8860_BL_AMBL_FILT_80ms   0   /* Light sensor filter time */
#define ADP8860_BL_AMBL_FILT_160ms  1
#define ADP8860_BL_AMBL_FILT_320ms  2
#define ADP8860_BL_AMBL_FILT_640ms  3
#define ADP8860_BL_AMBL_FILT_1280ms 4
#define ADP8860_BL_AMBL_FILT_2560ms 5
#define ADP8860_BL_AMBL_FILT_5120ms 6
#define ADP8860_BL_AMBL_FILT_10240ms    7   /* 10.24 sec */

/*
 * Blacklight current 0..30mA
 */
#define ADP8860_BL_CUR_mA(I)        ((I * 127) / 30)

/*
 * L2 comparator current 0..1106uA
 */
#define ADP8860_L2_COMP_CURR_uA(I)  ((I * 255) / 1106)

/*
 * L3 comparator current 0..138uA
 */
#define ADP8860_L3_COMP_CURR_uA(I)  ((I * 255) / 138)

struct adp8860_backlight_platform_data {
    u8 bl_led_assign;   /* 1 = Backlight 0 = Individual LED */

    u8 bl_fade_in;      /* Backlight Fade-In Timer */
    u8 bl_fade_out;     /* Backlight Fade-Out Timer */
    u8 bl_fade_law;     /* fade-on/fade-off transfer characteristic */

    u8 en_ambl_sens;    /* 1 = enable ambient light sensor */
    u8 abml_filt;       /* Light sensor filter time */

    u8 l1_daylight_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
    u8 l1_daylight_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
    u8 l2_office_max;   /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
    u8 l2_office_dim;   /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
    u8 l3_dark_max;     /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
    u8 l3_dark_dim;     /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */

    u8 l2_trip;     /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */
    u8 l2_hyst;     /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */
    u8 l3_trip;     /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */
    u8 l3_hyst;     /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */

    int num_leds;
    struct led_info *leds;
    u8 led_fade_in;     /* LED Fade-In Timer */
    u8 led_fade_out;    /* LED Fade-Out Timer */
    u8 led_fade_law;    /* fade-on/fade-off transfer characteristic */
    u8 led_on_time;

    u8 gdwn_dis;
};

#endif /* __LINUX_I2C_ADP8860_H */