1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * Definitions and platform data for Analog Devices
4 * Backlight drivers ADP8870
5 *
6 * Copyright 2009-2010 Analog Devices Inc.
7 */
8
9 #ifndef __LINUX_I2C_ADP8870_H
10 #define __LINUX_I2C_ADP8870_H
11
12 #define ID_ADP8870 8870
13
14 #define ADP8870_MAX_BRIGHTNESS 0x7F
15 #define FLAG_OFFT_SHIFT 8
16
17 /*
18 * LEDs subdevice platform data
19 */
20
21 #define ADP8870_LED_DIS_BLINK (0 << FLAG_OFFT_SHIFT)
22 #define ADP8870_LED_OFFT_600ms (1 << FLAG_OFFT_SHIFT)
23 #define ADP8870_LED_OFFT_1200ms (2 << FLAG_OFFT_SHIFT)
24 #define ADP8870_LED_OFFT_1800ms (3 << FLAG_OFFT_SHIFT)
25
26 #define ADP8870_LED_ONT_200ms 0
27 #define ADP8870_LED_ONT_600ms 1
28 #define ADP8870_LED_ONT_800ms 2
29 #define ADP8870_LED_ONT_1200ms 3
30
31 #define ADP8870_LED_D7 (7)
32 #define ADP8870_LED_D6 (6)
33 #define ADP8870_LED_D5 (5)
34 #define ADP8870_LED_D4 (4)
35 #define ADP8870_LED_D3 (3)
36 #define ADP8870_LED_D2 (2)
37 #define ADP8870_LED_D1 (1)
38
39 /*
40 * Backlight subdevice platform data
41 */
42
43 #define ADP8870_BL_D7 (1 << 6)
44 #define ADP8870_BL_D6 (1 << 5)
45 #define ADP8870_BL_D5 (1 << 4)
46 #define ADP8870_BL_D4 (1 << 3)
47 #define ADP8870_BL_D3 (1 << 2)
48 #define ADP8870_BL_D2 (1 << 1)
49 #define ADP8870_BL_D1 (1 << 0)
50
51 #define ADP8870_FADE_T_DIS 0 /* Fade Timer Disabled */
52 #define ADP8870_FADE_T_300ms 1 /* 0.3 Sec */
53 #define ADP8870_FADE_T_600ms 2
54 #define ADP8870_FADE_T_900ms 3
55 #define ADP8870_FADE_T_1200ms 4
56 #define ADP8870_FADE_T_1500ms 5
57 #define ADP8870_FADE_T_1800ms 6
58 #define ADP8870_FADE_T_2100ms 7
59 #define ADP8870_FADE_T_2400ms 8
60 #define ADP8870_FADE_T_2700ms 9
61 #define ADP8870_FADE_T_3000ms 10
62 #define ADP8870_FADE_T_3500ms 11
63 #define ADP8870_FADE_T_4000ms 12
64 #define ADP8870_FADE_T_4500ms 13
65 #define ADP8870_FADE_T_5000ms 14
66 #define ADP8870_FADE_T_5500ms 15 /* 5.5 Sec */
67
68 #define ADP8870_FADE_LAW_LINEAR 0
69 #define ADP8870_FADE_LAW_SQUARE 1
70 #define ADP8870_FADE_LAW_CUBIC1 2
71 #define ADP8870_FADE_LAW_CUBIC2 3
72
73 #define ADP8870_BL_AMBL_FILT_80ms 0 /* Light sensor filter time */
74 #define ADP8870_BL_AMBL_FILT_160ms 1
75 #define ADP8870_BL_AMBL_FILT_320ms 2
76 #define ADP8870_BL_AMBL_FILT_640ms 3
77 #define ADP8870_BL_AMBL_FILT_1280ms 4
78 #define ADP8870_BL_AMBL_FILT_2560ms 5
79 #define ADP8870_BL_AMBL_FILT_5120ms 6
80 #define ADP8870_BL_AMBL_FILT_10240ms 7 /* 10.24 sec */
81
82 /*
83 * Blacklight current 0..30mA
84 */
85 #define ADP8870_BL_CUR_mA(I) ((I * 127) / 30)
86
87 /*
88 * L2 comparator current 0..1106uA
89 */
90 #define ADP8870_L2_COMP_CURR_uA(I) ((I * 255) / 1106)
91
92 /*
93 * L3 comparator current 0..551uA
94 */
95 #define ADP8870_L3_COMP_CURR_uA(I) ((I * 255) / 551)
96
97 /*
98 * L4 comparator current 0..275uA
99 */
100 #define ADP8870_L4_COMP_CURR_uA(I) ((I * 255) / 275)
101
102 /*
103 * L5 comparator current 0..138uA
104 */
105 #define ADP8870_L5_COMP_CURR_uA(I) ((I * 255) / 138)
106
107 struct adp8870_backlight_platform_data {
108 u8 bl_led_assign; /* 1 = Backlight 0 = Individual LED */
109 u8 pwm_assign; /* 1 = Enables PWM mode */
110
111 u8 bl_fade_in; /* Backlight Fade-In Timer */
112 u8 bl_fade_out; /* Backlight Fade-Out Timer */
113 u8 bl_fade_law; /* fade-on/fade-off transfer characteristic */
114
115 u8 en_ambl_sens; /* 1 = enable ambient light sensor */
116 u8 abml_filt; /* Light sensor filter time */
117
118 u8 l1_daylight_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
119 u8 l1_daylight_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
120 u8 l2_bright_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
121 u8 l2_bright_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
122 u8 l3_office_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
123 u8 l3_office_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
124 u8 l4_indoor_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
125 u8 l4_indor_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
126 u8 l5_dark_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
127 u8 l5_dark_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
128
129 u8 l2_trip; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */
130 u8 l2_hyst; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */
131 u8 l3_trip; /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */
132 u8 l3_hyst; /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */
133 u8 l4_trip; /* use L4_COMP_CURR_uA(I) 0 <= I <= 275 uA */
134 u8 l4_hyst; /* use L4_COMP_CURR_uA(I) 0 <= I <= 275 uA */
135 u8 l5_trip; /* use L5_COMP_CURR_uA(I) 0 <= I <= 138 uA */
136 u8 l5_hyst; /* use L6_COMP_CURR_uA(I) 0 <= I <= 138 uA */
137
138 /**
139 * Independent Current Sinks / LEDS
140 * Sinks not assigned to the Backlight can be exposed to
141 * user space using the LEDS CLASS interface
142 */
143
144 int num_leds;
145 struct led_info *leds;
146 u8 led_fade_in; /* LED Fade-In Timer */
147 u8 led_fade_out; /* LED Fade-Out Timer */
148 u8 led_fade_law; /* fade-on/fade-off transfer characteristic */
149 u8 led_on_time;
150 };
151
152 #endif /* __LINUX_I2C_ADP8870_H */
153
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