include/media/i2c/as3645a.h

   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  */
  54 struct 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__ */