1/*
2 * include/media/lm3646.h
3 *
4 * Copyright (C) 2014 Texas Instruments
5 *
6 * Contact: Daniel Jeong <gshark.jeong@gmail.com>
7 *			Ldd-Mlp <ldd-mlp@list.ti.com>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2 as published by the Free Software Foundation.
12 */
13
14#ifndef __LM3646_H__
15#define __LM3646_H__
16
17#include <media/v4l2-subdev.h>
18
19#define LM3646_NAME	"lm3646"
20#define LM3646_I2C_ADDR_REV1	(0x67)
21#define LM3646_I2C_ADDR_REV0	(0x63)
22
23/*  TOTAL FLASH Brightness Max
24 *	min 93350uA, step 93750uA, max 1499600uA
25 */
26#define LM3646_TOTAL_FLASH_BRT_MIN 93350
27#define LM3646_TOTAL_FLASH_BRT_STEP 93750
28#define LM3646_TOTAL_FLASH_BRT_MAX 1499600
29#define LM3646_TOTAL_FLASH_BRT_uA_TO_REG(a)	\
30	((a) < LM3646_TOTAL_FLASH_BRT_MIN ? 0 :	\
31	 ((((a) - LM3646_TOTAL_FLASH_BRT_MIN) / LM3646_TOTAL_FLASH_BRT_STEP)))
32
33/*  TOTAL TORCH Brightness Max
34 *	min 23040uA, step 23430uA, max 187100uA
35 */
36#define LM3646_TOTAL_TORCH_BRT_MIN 23040
37#define LM3646_TOTAL_TORCH_BRT_STEP 23430
38#define LM3646_TOTAL_TORCH_BRT_MAX 187100
39#define LM3646_TOTAL_TORCH_BRT_uA_TO_REG(a)	\
40	((a) < LM3646_TOTAL_TORCH_BRT_MIN ? 0 :	\
41	 ((((a) - LM3646_TOTAL_TORCH_BRT_MIN) / LM3646_TOTAL_TORCH_BRT_STEP)))
42
43/*  LED1 FLASH Brightness
44 *	min 23040uA, step 11718uA, max 1499600uA
45 */
46#define LM3646_LED1_FLASH_BRT_MIN 23040
47#define LM3646_LED1_FLASH_BRT_STEP 11718
48#define LM3646_LED1_FLASH_BRT_MAX 1499600
49#define LM3646_LED1_FLASH_BRT_uA_TO_REG(a)	\
50	((a) <= LM3646_LED1_FLASH_BRT_MIN ? 0 :	\
51	 ((((a) - LM3646_LED1_FLASH_BRT_MIN) / LM3646_LED1_FLASH_BRT_STEP))+1)
52
53/*  LED1 TORCH Brightness
54 *	min 2530uA, step 1460uA, max 187100uA
55 */
56#define LM3646_LED1_TORCH_BRT_MIN 2530
57#define LM3646_LED1_TORCH_BRT_STEP 1460
58#define LM3646_LED1_TORCH_BRT_MAX 187100
59#define LM3646_LED1_TORCH_BRT_uA_TO_REG(a)	\
60	((a) <= LM3646_LED1_TORCH_BRT_MIN ? 0 :	\
61	 ((((a) - LM3646_LED1_TORCH_BRT_MIN) / LM3646_LED1_TORCH_BRT_STEP))+1)
62
63/*  FLASH TIMEOUT DURATION
64 *	min 50ms, step 50ms, max 400ms
65 */
66#define LM3646_FLASH_TOUT_MIN 50
67#define LM3646_FLASH_TOUT_STEP 50
68#define LM3646_FLASH_TOUT_MAX 400
69#define LM3646_FLASH_TOUT_ms_TO_REG(a)	\
70	((a) <= LM3646_FLASH_TOUT_MIN ? 0 :	\
71	 (((a) - LM3646_FLASH_TOUT_MIN) / LM3646_FLASH_TOUT_STEP))
72
73/* struct lm3646_platform_data
74 *
75 * @flash_timeout: flash timeout
76 * @led1_flash_brt: led1 flash mode brightness, uA
77 * @led1_torch_brt: led1 torch mode brightness, uA
78 */
79struct lm3646_platform_data {
80
81	u32 flash_timeout;
82
83	u32 led1_flash_brt;
84	u32 led1_torch_brt;
85};
86
87#endif /* __LM3646_H__ */
88