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Michael Hennerich82fd53b2010-04-30 14:09:51 -07001/*
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;
Michael Hennerichc7c06d82010-05-26 03:00:59 -0400135
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;
Michael Hennerich82fd53b2010-04-30 14:09:51 -0700152};
153
154#endif /* __LINUX_I2C_ADP8860_H */