1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * include/media/i2c/adp1653.h
4 *
5 * Copyright (C) 2008--2011 Nokia Corporation
6 *
7 * Contact: Sakari Ailus <sakari.ailus@iki.fi>
8 *
9 * Contributors:
10 *	Sakari Ailus <sakari.ailus@iki.fi>
11 *	Tuukka Toivonen <tuukkat76@gmail.com>
12 */
13
14#ifndef ADP1653_H
15#define ADP1653_H
16
17#include <linux/i2c.h>
18#include <linux/mutex.h>
19#include <linux/videodev2.h>
20#include <media/v4l2-ctrls.h>
21#include <media/v4l2-subdev.h>
22
23#define ADP1653_NAME				"adp1653"
24#define ADP1653_I2C_ADDR			(0x60 >> 1)
25
26/* Register definitions */
27#define ADP1653_REG_OUT_SEL			0x00
28#define ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN	0x01
29#define ADP1653_REG_OUT_SEL_HPLED_TORCH_MAX	0x0b
30#define ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN	0x0c
31#define ADP1653_REG_OUT_SEL_HPLED_FLASH_MAX	0x1f
32#define ADP1653_REG_OUT_SEL_HPLED_SHIFT		3
33#define ADP1653_REG_OUT_SEL_ILED_MAX		0x07
34#define ADP1653_REG_OUT_SEL_ILED_SHIFT		0
35
36#define ADP1653_REG_CONFIG			0x01
37#define ADP1653_REG_CONFIG_TMR_CFG		(1 << 4)
38#define ADP1653_REG_CONFIG_TMR_SET_MAX		0x0f
39#define ADP1653_REG_CONFIG_TMR_SET_SHIFT	0
40
41#define ADP1653_REG_SW_STROBE			0x02
42#define ADP1653_REG_SW_STROBE_SW_STROBE		(1 << 0)
43
44#define ADP1653_REG_FAULT			0x03
45#define ADP1653_REG_FAULT_FLT_SCP		(1 << 3)
46#define ADP1653_REG_FAULT_FLT_OT		(1 << 2)
47#define ADP1653_REG_FAULT_FLT_TMR		(1 << 1)
48#define ADP1653_REG_FAULT_FLT_OV		(1 << 0)
49
50#define ADP1653_INDICATOR_INTENSITY_MIN		0
51#define ADP1653_INDICATOR_INTENSITY_STEP	2500
52#define ADP1653_INDICATOR_INTENSITY_MAX		\
53	(ADP1653_REG_OUT_SEL_ILED_MAX * ADP1653_INDICATOR_INTENSITY_STEP)
54#define ADP1653_INDICATOR_INTENSITY_uA_TO_REG(a) \
55	((a) / ADP1653_INDICATOR_INTENSITY_STEP)
56#define ADP1653_INDICATOR_INTENSITY_REG_TO_uA(a) \
57	((a) * ADP1653_INDICATOR_INTENSITY_STEP)
58
59#define ADP1653_FLASH_INTENSITY_BASE		35
60#define ADP1653_FLASH_INTENSITY_STEP		15
61#define ADP1653_FLASH_INTENSITY_MIN					\
62	(ADP1653_FLASH_INTENSITY_BASE					\
63	 + ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN * ADP1653_FLASH_INTENSITY_STEP)
64#define ADP1653_FLASH_INTENSITY_MAX			\
65	(ADP1653_FLASH_INTENSITY_MIN +			\
66	 (ADP1653_REG_OUT_SEL_HPLED_FLASH_MAX -		\
67	  ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN + 1) *	\
68	 ADP1653_FLASH_INTENSITY_STEP)
69
70#define ADP1653_FLASH_INTENSITY_mA_TO_REG(a)				\
71	((a) < ADP1653_FLASH_INTENSITY_BASE ? 0 :			\
72	 (((a) - ADP1653_FLASH_INTENSITY_BASE) / ADP1653_FLASH_INTENSITY_STEP))
73#define ADP1653_FLASH_INTENSITY_REG_TO_mA(a)		\
74	((a) * ADP1653_FLASH_INTENSITY_STEP + ADP1653_FLASH_INTENSITY_BASE)
75
76#define ADP1653_TORCH_INTENSITY_MIN					\
77	(ADP1653_FLASH_INTENSITY_BASE					\
78	 + ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN * ADP1653_FLASH_INTENSITY_STEP)
79#define ADP1653_TORCH_INTENSITY_MAX			\
80	(ADP1653_TORCH_INTENSITY_MIN +			\
81	 (ADP1653_REG_OUT_SEL_HPLED_TORCH_MAX -		\
82	  ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN + 1) *	\
83	 ADP1653_FLASH_INTENSITY_STEP)
84
85struct adp1653_platform_data {
86	int (*power)(struct v4l2_subdev *sd, int on);
87
88	u32 max_flash_timeout;		/* flash light timeout in us */
89	u32 max_flash_intensity;	/* led intensity, flash mode, mA */
90	u32 max_torch_intensity;	/* led intensity, torch mode, mA */
91	u32 max_indicator_intensity;	/* indicator led intensity, uA */
92
93	struct gpio_desc *enable_gpio;	/* for device-tree based boot */
94};
95
96#define to_adp1653_flash(sd)	container_of(sd, struct adp1653_flash, subdev)
97
98struct adp1653_flash {
99	struct v4l2_subdev subdev;
100	struct adp1653_platform_data *platform_data;
101
102	struct v4l2_ctrl_handler ctrls;
103	struct v4l2_ctrl *led_mode;
104	struct v4l2_ctrl *flash_timeout;
105	struct v4l2_ctrl *flash_intensity;
106	struct v4l2_ctrl *torch_intensity;
107	struct v4l2_ctrl *indicator_intensity;
108
109	struct mutex power_lock;
110	int power_count;
111	int fault;
112};
113
114#endif /* ADP1653_H */
115