tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * include/media/i2c/as3645a.h
3 *
4 * Copyright (C) 2008-2011 Nokia Corporation
5 *
6 * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 */
18
19#ifndef __AS3645A_H__
20#define __AS3645A_H__
21
22#include <media/v4l2-subdev.h>
23
24#define AS3645A_NAME "as3645a"
25#define AS3645A_I2C_ADDR (0x60 >> 1) /* W:0x60, R:0x61 */
26
27#define AS3645A_FLASH_TIMEOUT_MIN 100000 /* us */
28#define AS3645A_FLASH_TIMEOUT_MAX 850000
29#define AS3645A_FLASH_TIMEOUT_STEP 50000
30
31#define AS3645A_FLASH_INTENSITY_MIN 200 /* mA */
32#define AS3645A_FLASH_INTENSITY_MAX_1LED 500
33#define AS3645A_FLASH_INTENSITY_MAX_2LEDS 400
34#define AS3645A_FLASH_INTENSITY_STEP 20
35
36#define AS3645A_TORCH_INTENSITY_MIN 20 /* mA */
37#define AS3645A_TORCH_INTENSITY_MAX 160
38#define AS3645A_TORCH_INTENSITY_STEP 20
39
40#define AS3645A_INDICATOR_INTENSITY_MIN 0 /* uA */
41#define AS3645A_INDICATOR_INTENSITY_MAX 10000
42#define AS3645A_INDICATOR_INTENSITY_STEP 2500
43
44/*
45 * as3645a_platform_data - Flash controller platform data
46 * @set_power: Set power callback
47 * @vref: VREF offset (0=0V, 1=+0.3V, 2=-0.3V, 3=+0.6V)
48 * @peak: Inductor peak current limit (0=1.25A, 1=1.5A, 2=1.75A, 3=2.0A)
49 * @ext_strobe: True if external flash strobe can be used
50 * @flash_max_current: Max flash current (mA, <= AS3645A_FLASH_INTENSITY_MAX)
51 * @torch_max_current: Max torch current (mA, >= AS3645A_TORCH_INTENSITY_MAX)
52 * @timeout_max: Max flash timeout (us, <= AS3645A_FLASH_TIMEOUT_MAX)
53 */
54struct as3645a_platform_data {
55 int (*set_power)(struct v4l2_subdev *subdev, int on);
56 unsigned int vref;
57 unsigned int peak;
58 bool ext_strobe;
59
60 /* Flash and torch currents and timeout limits */
61 unsigned int flash_max_current;
62 unsigned int torch_max_current;
63 unsigned int timeout_max;
64};
65
66#endif /* __AS3645A_H__ */