1/*
 2 * include/media/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 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23
24#ifndef __AS3645A_H__
25#define __AS3645A_H__
26
27#include <media/v4l2-subdev.h>
28
29#define AS3645A_NAME				"as3645a"
30#define AS3645A_I2C_ADDR			(0x60 >> 1) /* W:0x60, R:0x61 */
31
32#define AS3645A_FLASH_TIMEOUT_MIN		100000	/* us */
33#define AS3645A_FLASH_TIMEOUT_MAX		850000
34#define AS3645A_FLASH_TIMEOUT_STEP		50000
35
36#define AS3645A_FLASH_INTENSITY_MIN		200	/* mA */
37#define AS3645A_FLASH_INTENSITY_MAX_1LED	500
38#define AS3645A_FLASH_INTENSITY_MAX_2LEDS	400
39#define AS3645A_FLASH_INTENSITY_STEP		20
40
41#define AS3645A_TORCH_INTENSITY_MIN		20	/* mA */
42#define AS3645A_TORCH_INTENSITY_MAX		160
43#define AS3645A_TORCH_INTENSITY_STEP		20
44
45#define AS3645A_INDICATOR_INTENSITY_MIN		0	/* uA */
46#define AS3645A_INDICATOR_INTENSITY_MAX		10000
47#define AS3645A_INDICATOR_INTENSITY_STEP	2500
48
49/*
50 * as3645a_platform_data - Flash controller platform data
51 * @set_power:	Set power callback
52 * @vref:	VREF offset (0=0V, 1=+0.3V, 2=-0.3V, 3=+0.6V)
53 * @peak:	Inductor peak current limit (0=1.25A, 1=1.5A, 2=1.75A, 3=2.0A)
54 * @ext_strobe:	True if external flash strobe can be used
55 * @flash_max_current:	Max flash current (mA, <= AS3645A_FLASH_INTENSITY_MAX)
56 * @torch_max_current:	Max torch current (mA, >= AS3645A_TORCH_INTENSITY_MAX)
57 * @timeout_max:	Max flash timeout (us, <= AS3645A_FLASH_TIMEOUT_MAX)
58 */
59struct as3645a_platform_data {
60	int (*set_power)(struct v4l2_subdev *subdev, int on);
61	unsigned int vref;
62	unsigned int peak;
63	bool ext_strobe;
64
65	/* Flash and torch currents and timeout limits */
66	unsigned int flash_max_current;
67	unsigned int torch_max_current;
68	unsigned int timeout_max;
69};
70
71#endif /* __AS3645A_H__ */