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Sakari Ailus13abada2011-05-05 15:39:25 -03001/*
2 * include/media/adp1653.h
3 *
4 * Copyright (C) 2008--2011 Nokia Corporation
5 *
6 * Contact: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
7 *
8 * Contributors:
9 * Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
10 * Tuukka Toivonen <tuukkat76@gmail.com>
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * version 2 as published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
24 * 02110-1301 USA
25 *
26 */
27
28#ifndef ADP1653_H
29#define ADP1653_H
30
31#include <linux/i2c.h>
32#include <linux/mutex.h>
33#include <linux/videodev2.h>
34#include <media/v4l2-ctrls.h>
35#include <media/v4l2-subdev.h>
36
37#define ADP1653_NAME "adp1653"
38#define ADP1653_I2C_ADDR (0x60 >> 1)
39
40/* Register definitions */
41#define ADP1653_REG_OUT_SEL 0x00
42#define ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN 0x01
43#define ADP1653_REG_OUT_SEL_HPLED_TORCH_MAX 0x0b
44#define ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN 0x0c
45#define ADP1653_REG_OUT_SEL_HPLED_FLASH_MAX 0x1f
46#define ADP1653_REG_OUT_SEL_HPLED_SHIFT 3
47#define ADP1653_REG_OUT_SEL_ILED_MAX 0x07
48#define ADP1653_REG_OUT_SEL_ILED_SHIFT 0
49
50#define ADP1653_REG_CONFIG 0x01
51#define ADP1653_REG_CONFIG_TMR_CFG (1 << 4)
52#define ADP1653_REG_CONFIG_TMR_SET_MAX 0x0f
53#define ADP1653_REG_CONFIG_TMR_SET_SHIFT 0
54
55#define ADP1653_REG_SW_STROBE 0x02
56#define ADP1653_REG_SW_STROBE_SW_STROBE (1 << 0)
57
58#define ADP1653_REG_FAULT 0x03
59#define ADP1653_REG_FAULT_FLT_SCP (1 << 3)
60#define ADP1653_REG_FAULT_FLT_OT (1 << 2)
61#define ADP1653_REG_FAULT_FLT_TMR (1 << 1)
62#define ADP1653_REG_FAULT_FLT_OV (1 << 0)
63
64#define ADP1653_INDICATOR_INTENSITY_MIN 0
65#define ADP1653_INDICATOR_INTENSITY_STEP 2500
66#define ADP1653_INDICATOR_INTENSITY_MAX \
67 (ADP1653_REG_OUT_SEL_ILED_MAX * ADP1653_INDICATOR_INTENSITY_STEP)
68#define ADP1653_INDICATOR_INTENSITY_uA_TO_REG(a) \
69 ((a) / ADP1653_INDICATOR_INTENSITY_STEP)
70#define ADP1653_INDICATOR_INTENSITY_REG_TO_uA(a) \
71 ((a) * ADP1653_INDICATOR_INTENSITY_STEP)
72
73#define ADP1653_FLASH_INTENSITY_BASE 35
74#define ADP1653_FLASH_INTENSITY_STEP 15
75#define ADP1653_FLASH_INTENSITY_MIN \
76 (ADP1653_FLASH_INTENSITY_BASE \
77 + ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN * ADP1653_FLASH_INTENSITY_STEP)
78#define ADP1653_FLASH_INTENSITY_MAX \
79 (ADP1653_FLASH_INTENSITY_MIN + \
80 (ADP1653_REG_OUT_SEL_HPLED_FLASH_MAX - \
81 ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN + 1) * \
82 ADP1653_FLASH_INTENSITY_STEP)
83
84#define ADP1653_FLASH_INTENSITY_mA_TO_REG(a) \
85 ((a) < ADP1653_FLASH_INTENSITY_BASE ? 0 : \
86 (((a) - ADP1653_FLASH_INTENSITY_BASE) / ADP1653_FLASH_INTENSITY_STEP))
87#define ADP1653_FLASH_INTENSITY_REG_TO_mA(a) \
88 ((a) * ADP1653_FLASH_INTENSITY_STEP + ADP1653_FLASH_INTENSITY_BASE)
89
90#define ADP1653_TORCH_INTENSITY_MIN \
91 (ADP1653_FLASH_INTENSITY_BASE \
92 + ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN * ADP1653_FLASH_INTENSITY_STEP)
93#define ADP1653_TORCH_INTENSITY_MAX \
94 (ADP1653_TORCH_INTENSITY_MIN + \
95 (ADP1653_REG_OUT_SEL_HPLED_TORCH_MAX - \
96 ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN + 1) * \
97 ADP1653_FLASH_INTENSITY_STEP)
98
99struct adp1653_platform_data {
100 int (*power)(struct v4l2_subdev *sd, int on);
101
102 u32 max_flash_timeout; /* flash light timeout in us */
103 u32 max_flash_intensity; /* led intensity, flash mode */
104 u32 max_torch_intensity; /* led intensity, torch mode */
105 u32 max_indicator_intensity; /* indicator led intensity */
106};
107
108#define to_adp1653_flash(sd) container_of(sd, struct adp1653_flash, subdev)
109
110struct adp1653_flash {
111 struct v4l2_subdev subdev;
112 struct adp1653_platform_data *platform_data;
113
114 struct v4l2_ctrl_handler ctrls;
115 struct v4l2_ctrl *led_mode;
116 struct v4l2_ctrl *flash_timeout;
117 struct v4l2_ctrl *flash_intensity;
118 struct v4l2_ctrl *torch_intensity;
119 struct v4l2_ctrl *indicator_intensity;
120
121 struct mutex power_lock;
122 int power_count;
123 int fault;
124};
125
126#endif /* ADP1653_H */