1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Definitions and platform data for Analog Devices |
4 | * Backlight drivers ADP8860 |
5 | * |
6 | * Copyright 2009-2010 Analog Devices Inc. |
7 | */ |
8 | |
9 | #ifndef __LINUX_I2C_ADP8860_H |
10 | #define __LINUX_I2C_ADP8860_H |
11 | |
12 | #include <linux/leds.h> |
13 | #include <linux/types.h> |
14 | |
15 | #define ID_ADP8860 8860 |
16 | |
17 | #define ADP8860_MAX_BRIGHTNESS 0x7F |
18 | #define FLAG_OFFT_SHIFT 8 |
19 | |
20 | /* |
21 | * LEDs subdevice platform data |
22 | */ |
23 | |
24 | #define ADP8860_LED_DIS_BLINK (0 << FLAG_OFFT_SHIFT) |
25 | #define ADP8860_LED_OFFT_600ms (1 << FLAG_OFFT_SHIFT) |
26 | #define ADP8860_LED_OFFT_1200ms (2 << FLAG_OFFT_SHIFT) |
27 | #define ADP8860_LED_OFFT_1800ms (3 << FLAG_OFFT_SHIFT) |
28 | |
29 | #define ADP8860_LED_ONT_200ms 0 |
30 | #define ADP8860_LED_ONT_600ms 1 |
31 | #define ADP8860_LED_ONT_800ms 2 |
32 | #define ADP8860_LED_ONT_1200ms 3 |
33 | |
34 | #define ADP8860_LED_D7 (7) |
35 | #define ADP8860_LED_D6 (6) |
36 | #define ADP8860_LED_D5 (5) |
37 | #define ADP8860_LED_D4 (4) |
38 | #define ADP8860_LED_D3 (3) |
39 | #define ADP8860_LED_D2 (2) |
40 | #define ADP8860_LED_D1 (1) |
41 | |
42 | /* |
43 | * Backlight subdevice platform data |
44 | */ |
45 | |
46 | #define ADP8860_BL_D7 (1 << 6) |
47 | #define ADP8860_BL_D6 (1 << 5) |
48 | #define ADP8860_BL_D5 (1 << 4) |
49 | #define ADP8860_BL_D4 (1 << 3) |
50 | #define ADP8860_BL_D3 (1 << 2) |
51 | #define ADP8860_BL_D2 (1 << 1) |
52 | #define ADP8860_BL_D1 (1 << 0) |
53 | |
54 | #define ADP8860_FADE_T_DIS 0 /* Fade Timer Disabled */ |
55 | #define ADP8860_FADE_T_300ms 1 /* 0.3 Sec */ |
56 | #define ADP8860_FADE_T_600ms 2 |
57 | #define ADP8860_FADE_T_900ms 3 |
58 | #define ADP8860_FADE_T_1200ms 4 |
59 | #define ADP8860_FADE_T_1500ms 5 |
60 | #define ADP8860_FADE_T_1800ms 6 |
61 | #define ADP8860_FADE_T_2100ms 7 |
62 | #define ADP8860_FADE_T_2400ms 8 |
63 | #define ADP8860_FADE_T_2700ms 9 |
64 | #define ADP8860_FADE_T_3000ms 10 |
65 | #define ADP8860_FADE_T_3500ms 11 |
66 | #define ADP8860_FADE_T_4000ms 12 |
67 | #define ADP8860_FADE_T_4500ms 13 |
68 | #define ADP8860_FADE_T_5000ms 14 |
69 | #define ADP8860_FADE_T_5500ms 15 /* 5.5 Sec */ |
70 | |
71 | #define ADP8860_FADE_LAW_LINEAR 0 |
72 | #define ADP8860_FADE_LAW_SQUARE 1 |
73 | #define ADP8860_FADE_LAW_CUBIC1 2 |
74 | #define ADP8860_FADE_LAW_CUBIC2 3 |
75 | |
76 | #define ADP8860_BL_AMBL_FILT_80ms 0 /* Light sensor filter time */ |
77 | #define ADP8860_BL_AMBL_FILT_160ms 1 |
78 | #define ADP8860_BL_AMBL_FILT_320ms 2 |
79 | #define ADP8860_BL_AMBL_FILT_640ms 3 |
80 | #define ADP8860_BL_AMBL_FILT_1280ms 4 |
81 | #define ADP8860_BL_AMBL_FILT_2560ms 5 |
82 | #define ADP8860_BL_AMBL_FILT_5120ms 6 |
83 | #define ADP8860_BL_AMBL_FILT_10240ms 7 /* 10.24 sec */ |
84 | |
85 | /* |
86 | * Blacklight current 0..30mA |
87 | */ |
88 | #define ADP8860_BL_CUR_mA(I) ((I * 127) / 30) |
89 | |
90 | /* |
91 | * L2 comparator current 0..1106uA |
92 | */ |
93 | #define ADP8860_L2_COMP_CURR_uA(I) ((I * 255) / 1106) |
94 | |
95 | /* |
96 | * L3 comparator current 0..138uA |
97 | */ |
98 | #define ADP8860_L3_COMP_CURR_uA(I) ((I * 255) / 138) |
99 | |
100 | struct adp8860_backlight_platform_data { |
101 | u8 bl_led_assign; /* 1 = Backlight 0 = Individual LED */ |
102 | |
103 | u8 bl_fade_in; /* Backlight Fade-In Timer */ |
104 | u8 bl_fade_out; /* Backlight Fade-Out Timer */ |
105 | u8 bl_fade_law; /* fade-on/fade-off transfer characteristic */ |
106 | |
107 | u8 en_ambl_sens; /* 1 = enable ambient light sensor */ |
108 | u8 abml_filt; /* Light sensor filter time */ |
109 | |
110 | u8 l1_daylight_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */ |
111 | u8 l1_daylight_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */ |
112 | u8 l2_office_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */ |
113 | u8 l2_office_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */ |
114 | u8 l3_dark_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */ |
115 | u8 l3_dark_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */ |
116 | |
117 | u8 l2_trip; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */ |
118 | u8 l2_hyst; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */ |
119 | u8 l3_trip; /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */ |
120 | u8 l3_hyst; /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */ |
121 | |
122 | /** |
123 | * Independent Current Sinks / LEDS |
124 | * Sinks not assigned to the Backlight can be exposed to |
125 | * user space using the LEDS CLASS interface |
126 | */ |
127 | |
128 | int num_leds; |
129 | struct led_info *leds; |
130 | u8 led_fade_in; /* LED Fade-In Timer */ |
131 | u8 led_fade_out; /* LED Fade-Out Timer */ |
132 | u8 led_fade_law; /* fade-on/fade-off transfer characteristic */ |
133 | u8 led_on_time; |
134 | |
135 | /** |
136 | * Gain down disable. Setting this option does not allow the |
137 | * charge pump to switch to lower gains. NOT AVAILABLE on ADP8860 |
138 | * 1 = the charge pump doesn't switch down in gain until all LEDs are 0. |
139 | * The charge pump switches up in gain as needed. This feature is |
140 | * useful if the ADP8863 charge pump is used to drive an external load. |
141 | * This feature must be used when utilizing small fly capacitors |
142 | * (0402 or smaller). |
143 | * 0 = the charge pump automatically switches up and down in gain. |
144 | * This provides optimal efficiency, but is not suitable for driving |
145 | * loads that are not connected through the ADP8863 diode drivers. |
146 | * Additionally, the charge pump fly capacitors should be low ESR |
147 | * and sized 0603 or greater. |
148 | */ |
149 | |
150 | u8 gdwn_dis; |
151 | }; |
152 | |
153 | #endif /* __LINUX_I2C_ADP8860_H */ |
154 | |