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Diffstat (limited to 'include/linux/i2c/adp8860.h')
| -rw-r--r-- | include/linux/i2c/adp8860.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/include/linux/i2c/adp8860.h b/include/linux/i2c/adp8860.h new file mode 100644 index 000000000000..0b4d39855c91 --- /dev/null +++ b/include/linux/i2c/adp8860.h @@ -0,0 +1,154 @@ +/* + * 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 */ + + /** + * Independent Current Sinks / LEDS + * Sinks not assigned to the Backlight can be exposed to + * user space using the LEDS CLASS interface + */ + + 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; + + /** + * Gain down disable. Setting this option does not allow the + * charge pump to switch to lower gains. NOT AVAILABLE on ADP8860 + * 1 = the charge pump doesn't switch down in gain until all LEDs are 0. + * The charge pump switches up in gain as needed. This feature is + * useful if the ADP8863 charge pump is used to drive an external load. + * This feature must be used when utilizing small fly capacitors + * (0402 or smaller). + * 0 = the charge pump automatically switches up and down in gain. + * This provides optimal efficiency, but is not suitable for driving + * loads that are not connected through the ADP8863 diode drivers. + * Additionally, the charge pump fly capacitors should be low ESR + * and sized 0603 or greater. + */ + + u8 gdwn_dis; +}; + +#endif /* __LINUX_I2C_ADP8860_H */ |