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Michael Hennericha59ec1e2011-06-15 15:08:11 -07001/*
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 */