Release 4.7 include/media/i2c/adp1653.h

/*
 * include/media/i2c/adp1653.h
 *
 * Copyright (C) 2008--2011 Nokia Corporation
 *
 * Contact: Sakari Ailus <sakari.ailus@iki.fi>
 *
 * Contributors:
 *      Sakari Ailus <sakari.ailus@iki.fi>
 *      Tuukka Toivonen <tuukkat76@gmail.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 ADP1653_H

#define ADP1653_H

#include <linux/i2c.h>
#include <linux/mutex.h>
#include <linux/videodev2.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>


#define ADP1653_NAME				"adp1653"

#define ADP1653_I2C_ADDR			(0x60 >> 1)

/* Register definitions */

#define ADP1653_REG_OUT_SEL			0x00

#define ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN	0x01

#define ADP1653_REG_OUT_SEL_HPLED_TORCH_MAX	0x0b

#define ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN	0x0c

#define ADP1653_REG_OUT_SEL_HPLED_FLASH_MAX	0x1f

#define ADP1653_REG_OUT_SEL_HPLED_SHIFT		3

#define ADP1653_REG_OUT_SEL_ILED_MAX		0x07

#define ADP1653_REG_OUT_SEL_ILED_SHIFT		0


#define ADP1653_REG_CONFIG			0x01

#define ADP1653_REG_CONFIG_TMR_CFG		(1 << 4)

#define ADP1653_REG_CONFIG_TMR_SET_MAX		0x0f

#define ADP1653_REG_CONFIG_TMR_SET_SHIFT	0


#define ADP1653_REG_SW_STROBE			0x02

#define ADP1653_REG_SW_STROBE_SW_STROBE		(1 << 0)


#define ADP1653_REG_FAULT			0x03

#define ADP1653_REG_FAULT_FLT_SCP		(1 << 3)

#define ADP1653_REG_FAULT_FLT_OT		(1 << 2)

#define ADP1653_REG_FAULT_FLT_TMR		(1 << 1)

#define ADP1653_REG_FAULT_FLT_OV		(1 << 0)


#define ADP1653_INDICATOR_INTENSITY_MIN		0

#define ADP1653_INDICATOR_INTENSITY_STEP	2500

#define ADP1653_INDICATOR_INTENSITY_MAX		\
	(ADP1653_REG_OUT_SEL_ILED_MAX * ADP1653_INDICATOR_INTENSITY_STEP)

#define ADP1653_INDICATOR_INTENSITY_uA_TO_REG(a) \
	((a) / ADP1653_INDICATOR_INTENSITY_STEP)

#define ADP1653_INDICATOR_INTENSITY_REG_TO_uA(a) \
	((a) * ADP1653_INDICATOR_INTENSITY_STEP)


#define ADP1653_FLASH_INTENSITY_BASE		35

#define ADP1653_FLASH_INTENSITY_STEP		15

#define ADP1653_FLASH_INTENSITY_MIN					\
	(ADP1653_FLASH_INTENSITY_BASE                                   \
         + ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN * ADP1653_FLASH_INTENSITY_STEP)

#define ADP1653_FLASH_INTENSITY_MAX			\
	(ADP1653_FLASH_INTENSITY_MIN +                  \
         (ADP1653_REG_OUT_SEL_HPLED_FLASH_MAX -         \
          ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN + 1) *    \
         ADP1653_FLASH_INTENSITY_STEP)


#define ADP1653_FLASH_INTENSITY_mA_TO_REG(a)				\
	((a) < ADP1653_FLASH_INTENSITY_BASE ? 0 :                       \
         (((a) - ADP1653_FLASH_INTENSITY_BASE) / ADP1653_FLASH_INTENSITY_STEP))

#define ADP1653_FLASH_INTENSITY_REG_TO_mA(a)		\
	((a) * ADP1653_FLASH_INTENSITY_STEP + ADP1653_FLASH_INTENSITY_BASE)


#define ADP1653_TORCH_INTENSITY_MIN					\
	(ADP1653_FLASH_INTENSITY_BASE                                   \
         + ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN * ADP1653_FLASH_INTENSITY_STEP)

#define ADP1653_TORCH_INTENSITY_MAX			\
	(ADP1653_TORCH_INTENSITY_MIN +                  \
         (ADP1653_REG_OUT_SEL_HPLED_TORCH_MAX -         \
          ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN + 1) *    \
         ADP1653_FLASH_INTENSITY_STEP)


struct adp1653_platform_data {
	
int (*power)(struct v4l2_subdev *sd, int on);

	
u32 max_flash_timeout;		/* flash light timeout in us */
	
u32 max_flash_intensity;	/* led intensity, flash mode, mA */
	
u32 max_torch_intensity;	/* led intensity, torch mode, mA */
	
u32 max_indicator_intensity;	/* indicator led intensity, uA */

	
struct gpio_desc *enable_gpio;	/* for device-tree based boot */
};


#define to_adp1653_flash(sd)	container_of(sd, struct adp1653_flash, subdev)


struct adp1653_flash {
	
struct v4l2_subdev subdev;
	
struct adp1653_platform_data *platform_data;

	
struct v4l2_ctrl_handler ctrls;
	
struct v4l2_ctrl *led_mode;
	
struct v4l2_ctrl *flash_timeout;
	
struct v4l2_ctrl *flash_intensity;
	
struct v4l2_ctrl *torch_intensity;
	
struct v4l2_ctrl *indicator_intensity;

	
struct mutex power_lock;
	
int power_count;
	
int fault;
};

#endif /* ADP1653_H */
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Directory: include/media/i2c

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