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/*
* include/media/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 */