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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/media/i2c/lm3646.h
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/* SPDX-License-Identifier: GPL-2.0-only */

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/*

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 * include/media/i2c/lm3646.h

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 *

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 * Copyright (C) 2014 Texas Instruments

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 *

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 * Contact: Daniel Jeong <[email protected]>

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 *			Ldd-Mlp <[email protected]>

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 */

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#ifndef __LM3646_H__

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#define __LM3646_H__

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#include <media/v4l2-subdev.h>

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#define LM3646_NAME	"lm3646"

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#define LM3646_I2C_ADDR_REV1	(0x67)

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#define LM3646_I2C_ADDR_REV0	(0x63)

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/*  TOTAL FLASH Brightness Max

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 *	min 93350uA, step 93750uA, max 1499600uA

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 */

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#define LM3646_TOTAL_FLASH_BRT_MIN 93350

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#define LM3646_TOTAL_FLASH_BRT_STEP 93750

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#define LM3646_TOTAL_FLASH_BRT_MAX 1499600

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#define LM3646_TOTAL_FLASH_BRT_uA_TO_REG(a)	\

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	((a) < LM3646_TOTAL_FLASH_BRT_MIN ? 0 :	\

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	 ((((a) - LM3646_TOTAL_FLASH_BRT_MIN) / LM3646_TOTAL_FLASH_BRT_STEP)))

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/*  TOTAL TORCH Brightness Max

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 *	min 23040uA, step 23430uA, max 187100uA

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 */

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#define LM3646_TOTAL_TORCH_BRT_MIN 23040

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#define LM3646_TOTAL_TORCH_BRT_STEP 23430

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#define LM3646_TOTAL_TORCH_BRT_MAX 187100

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#define LM3646_TOTAL_TORCH_BRT_uA_TO_REG(a)	\

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	((a) < LM3646_TOTAL_TORCH_BRT_MIN ? 0 :	\

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	 ((((a) - LM3646_TOTAL_TORCH_BRT_MIN) / LM3646_TOTAL_TORCH_BRT_STEP)))

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/*  LED1 FLASH Brightness

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 *	min 23040uA, step 11718uA, max 1499600uA

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 */

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#define LM3646_LED1_FLASH_BRT_MIN 23040

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#define LM3646_LED1_FLASH_BRT_STEP 11718

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#define LM3646_LED1_FLASH_BRT_MAX 1499600

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#define LM3646_LED1_FLASH_BRT_uA_TO_REG(a)	\

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	((a) <= LM3646_LED1_FLASH_BRT_MIN ? 0 :	\

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	 ((((a) - LM3646_LED1_FLASH_BRT_MIN) / LM3646_LED1_FLASH_BRT_STEP))+1)

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/*  LED1 TORCH Brightness

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 *	min 2530uA, step 1460uA, max 187100uA

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 */

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#define LM3646_LED1_TORCH_BRT_MIN 2530

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#define LM3646_LED1_TORCH_BRT_STEP 1460

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#define LM3646_LED1_TORCH_BRT_MAX 187100

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#define LM3646_LED1_TORCH_BRT_uA_TO_REG(a)	\

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	((a) <= LM3646_LED1_TORCH_BRT_MIN ? 0 :	\

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	 ((((a) - LM3646_LED1_TORCH_BRT_MIN) / LM3646_LED1_TORCH_BRT_STEP))+1)

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/*  FLASH TIMEOUT DURATION

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 *	min 50ms, step 50ms, max 400ms

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 */

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#define LM3646_FLASH_TOUT_MIN 50

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#define LM3646_FLASH_TOUT_STEP 50

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#define LM3646_FLASH_TOUT_MAX 400

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#define LM3646_FLASH_TOUT_ms_TO_REG(a)	\

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	((a) <= LM3646_FLASH_TOUT_MIN ? 0 :	\

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	 (((a) - LM3646_FLASH_TOUT_MIN) / LM3646_FLASH_TOUT_STEP))

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/* struct lm3646_platform_data

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 *

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 * @flash_timeout: flash timeout

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 * @led1_flash_brt: led1 flash mode brightness, uA

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 * @led1_torch_brt: led1 torch mode brightness, uA

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 */

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struct lm3646_platform_data {

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	u32 flash_timeout;

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	u32 led1_flash_brt;

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	u32 led1_torch_brt;

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};

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#endif /* __LM3646_H__ */

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