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name : lm3646.h
 /* SPDX-License-Identifier: GPL-2.0-only */
/*
 * include/media/i2c/lm3646.h
 *
 * Copyright (C) 2014 Texas Instruments
 *
 * Contact: Daniel Jeong <gshark.jeong@gmail.com>
 *			Ldd-Mlp <ldd-mlp@list.ti.com>
 */

#ifndef __LM3646_H__
#define __LM3646_H__

#include <media/v4l2-subdev.h>

#define LM3646_NAME	"lm3646"
#define LM3646_I2C_ADDR_REV1	(0x67)
#define LM3646_I2C_ADDR_REV0	(0x63)

/*  TOTAL FLASH Brightness Max
 *	min 93350uA, step 93750uA, max 1499600uA
 */
#define LM3646_TOTAL_FLASH_BRT_MIN 93350
#define LM3646_TOTAL_FLASH_BRT_STEP 93750
#define LM3646_TOTAL_FLASH_BRT_MAX 1499600
#define LM3646_TOTAL_FLASH_BRT_uA_TO_REG(a)	\
	((a) < LM3646_TOTAL_FLASH_BRT_MIN ? 0 :	\
	 ((((a) - LM3646_TOTAL_FLASH_BRT_MIN) / LM3646_TOTAL_FLASH_BRT_STEP)))

/*  TOTAL TORCH Brightness Max
 *	min 23040uA, step 23430uA, max 187100uA
 */
#define LM3646_TOTAL_TORCH_BRT_MIN 23040
#define LM3646_TOTAL_TORCH_BRT_STEP 23430
#define LM3646_TOTAL_TORCH_BRT_MAX 187100
#define LM3646_TOTAL_TORCH_BRT_uA_TO_REG(a)	\
	((a) < LM3646_TOTAL_TORCH_BRT_MIN ? 0 :	\
	 ((((a) - LM3646_TOTAL_TORCH_BRT_MIN) / LM3646_TOTAL_TORCH_BRT_STEP)))

/*  LED1 FLASH Brightness
 *	min 23040uA, step 11718uA, max 1499600uA
 */
#define LM3646_LED1_FLASH_BRT_MIN 23040
#define LM3646_LED1_FLASH_BRT_STEP 11718
#define LM3646_LED1_FLASH_BRT_MAX 1499600
#define LM3646_LED1_FLASH_BRT_uA_TO_REG(a)	\
	((a) <= LM3646_LED1_FLASH_BRT_MIN ? 0 :	\
	 ((((a) - LM3646_LED1_FLASH_BRT_MIN) / LM3646_LED1_FLASH_BRT_STEP))+1)

/*  LED1 TORCH Brightness
 *	min 2530uA, step 1460uA, max 187100uA
 */
#define LM3646_LED1_TORCH_BRT_MIN 2530
#define LM3646_LED1_TORCH_BRT_STEP 1460
#define LM3646_LED1_TORCH_BRT_MAX 187100
#define LM3646_LED1_TORCH_BRT_uA_TO_REG(a)	\
	((a) <= LM3646_LED1_TORCH_BRT_MIN ? 0 :	\
	 ((((a) - LM3646_LED1_TORCH_BRT_MIN) / LM3646_LED1_TORCH_BRT_STEP))+1)

/*  FLASH TIMEOUT DURATION
 *	min 50ms, step 50ms, max 400ms
 */
#define LM3646_FLASH_TOUT_MIN 50
#define LM3646_FLASH_TOUT_STEP 50
#define LM3646_FLASH_TOUT_MAX 400
#define LM3646_FLASH_TOUT_ms_TO_REG(a)	\
	((a) <= LM3646_FLASH_TOUT_MIN ? 0 :	\
	 (((a) - LM3646_FLASH_TOUT_MIN) / LM3646_FLASH_TOUT_STEP))

/* struct lm3646_platform_data
 *
 * @flash_timeout: flash timeout
 * @led1_flash_brt: led1 flash mode brightness, uA
 * @led1_torch_brt: led1 torch mode brightness, uA
 */
struct lm3646_platform_data {

	u32 flash_timeout;

	u32 led1_flash_brt;
	u32 led1_torch_brt;
};

#endif /* __LM3646_H__ */
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