/*
   * include/media/as3645a.h
   *
   * Copyright (C) 2008-2011 Nokia Corporation
   *
   * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * version 2 as published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
   * 02110-1301 USA
   *
   */
  
  #ifndef __AS3645A_H__
  #define __AS3645A_H__
  
  #include <media/v4l2-subdev.h>
  
  #define AS3645A_NAME				"as3645a"
  #define AS3645A_I2C_ADDR			(0x60 >> 1) /* W:0x60, R:0x61 */
  
  #define AS3645A_FLASH_TIMEOUT_MIN		100000	/* us */
  #define AS3645A_FLASH_TIMEOUT_MAX		850000
  #define AS3645A_FLASH_TIMEOUT_STEP		50000
  
  #define AS3645A_FLASH_INTENSITY_MIN		200	/* mA */
  #define AS3645A_FLASH_INTENSITY_MAX_1LED	500
  #define AS3645A_FLASH_INTENSITY_MAX_2LEDS	400
  #define AS3645A_FLASH_INTENSITY_STEP		20
  
  #define AS3645A_TORCH_INTENSITY_MIN		20	/* mA */
  #define AS3645A_TORCH_INTENSITY_MAX		160
  #define AS3645A_TORCH_INTENSITY_STEP		20
  
  #define AS3645A_INDICATOR_INTENSITY_MIN		0	/* uA */
  #define AS3645A_INDICATOR_INTENSITY_MAX		10000
  #define AS3645A_INDICATOR_INTENSITY_STEP	2500
  
  /*
   * as3645a_platform_data - Flash controller platform data
   * @set_power:	Set power callback
   * @vref:	VREF offset (0=0V, 1=+0.3V, 2=-0.3V, 3=+0.6V)
   * @peak:	Inductor peak current limit (0=1.25A, 1=1.5A, 2=1.75A, 3=2.0A)
   * @ext_strobe:	True if external flash strobe can be used
   * @flash_max_current:	Max flash current (mA, <= AS3645A_FLASH_INTENSITY_MAX)
   * @torch_max_current:	Max torch current (mA, >= AS3645A_TORCH_INTENSITY_MAX)
   * @timeout_max:	Max flash timeout (us, <= AS3645A_FLASH_TIMEOUT_MAX)
   */
  struct as3645a_platform_data {
  	int (*set_power)(struct v4l2_subdev *subdev, int on);
  	unsigned int vref;
  	unsigned int peak;
  	bool ext_strobe;
  
  	/* Flash and torch currents and timeout limits */
  	unsigned int flash_max_current;
  	unsigned int torch_max_current;
  	unsigned int timeout_max;
  };
  
  #endif /* __AS3645A_H__ */