linux/include/media/as3645a.h
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   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__ */
  72
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