mirror of https://gitee.com/openkylin/linux.git
88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/*
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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 <gshark.jeong@gmail.com>
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* Ldd-Mlp <ldd-mlp@list.ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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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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