/*
 * linux-3.10/drivers/media/platform/sunxi-vfe/flash_light/flash.h
 *
 * Copyright (c) 2007-2017 Allwinnertech Co., Ltd.
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * 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.
 *
 */

/*
 * sunxi camera flash device header file
 */
#ifndef __FLASH_H__
#define __FLASH_H__

#include <linux/module.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-dev.h>

#include "../vfe_subdev.h"
#include "../device/camera_cfg.h"
#include "../vfe_os.h"

typedef enum sunxi_flash_ctrl {
  SW_CTRL_FLASH_OFF = 0x100,
  SW_CTRL_FLASH_ON  = 0x101,
  SW_CTRL_TORCH_ON  = 0x102,

  CAM_CTRL_FLASH_OFF = 0x200,
  CAM_CTRL_FLASH_ON  = 0x201,
  CAM_CTRL_TORCH_ON  = 0x202,

  EXT_SYNC_FLASH_OFF = 0x300,
  EXT_SYNC_FLASH_ON  = 0x301,
  EXT_SYNC_TORCH_ON  = 0x302,

}__flash_ctrl_t;

//typedef enum sunxi_flash_mode {
//	MODE_FLASH_NONE,
//	MODE_FLASH_ON,
//	MODE_TORCH_ON,
//	MODE_FLASH_AUTO,
//	MODE_FLASH_RED_EYE,
//}__flash_mode_t;

typedef enum sunxi_flash_driver_ic_type {
	FLASH_RELATING,
	FLASH_EN_INDEPEND,
	FLASH_POWER,
}__flash_driver_ic_type;

typedef enum sunxi_flash_sync {
	NONE,
	LED_SINGLE,
	LED_CONTIN,
	LED_ALTERNATE,
	XENON_PULSE,
}__flash_sync_t;

struct flash_dev_info {
	unsigned int dev_if;              //0-io type 1-i2c type
	unsigned int en_pol;              //polarity
	unsigned int fl_mode_pol;         //polarity

	unsigned int light_src;           //0x01-LEDX1 0x02-LEDX2 0x10-XENON
	unsigned int light_temperature;   //in K

	unsigned int flash_intensity;     //flash intensity
	unsigned int flash_level;         //in lux
	unsigned int torch_intensity;     //torch intensity
	unsigned int torch_level;         //in lux

	unsigned int timeout_counter;     //in us

	unsigned int status;              //0-led_off/1-flash_on/2-torch_on/
	enum sunxi_flash_driver_ic_type flash_driver_ic;
	//enum sunxi_flash_mode flash_mode;
	enum v4l2_flash_led_mode flash_mode;
	enum sunxi_flash_sync flash_sync;
};

struct flash_dev
{
	struct v4l2_subdev subdev;
	struct flash_dev_info fl_info;
	int	flash_used;
};

int sunxi_flash_get_subdev(struct v4l2_subdev **sd, int sel);
int sunxi_flash_put_subdev(struct v4l2_subdev **sd, int sel);
int sunxi_flash_register_subdev(struct v4l2_device *v4l2_dev, struct v4l2_subdev *sd);
void sunxi_flash_unregister_subdev(struct v4l2_subdev *sd);
int sunxi_flash_platform_register(void);
void sunxi_flash_platform_unregister(void);
int sunxi_flash_info_init(struct v4l2_subdev *sd);
int sunxi_flash_check_to_start(struct v4l2_subdev *sd, enum sunxi_flash_ctrl ctrl);
int sunxi_flash_stop(struct v4l2_subdev *sd);
int io_set_flash_ctrl(struct v4l2_subdev *sd, enum sunxi_flash_ctrl ctrl);

#endif  /* __FLASH_H__ */