media/i2c/lm3646.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  * include/media/i2c/lm3646.h
0004  *
0005  * Copyright (C) 2014 Texas Instruments
0006  *
0007  * Contact: Daniel Jeong <gshark.jeong@gmail.com>
0008  *          Ldd-Mlp <ldd-mlp@list.ti.com>
0009  */
0010
0011 #ifndef __LM3646_H__
0012 #define __LM3646_H__
0013
0014 #include <media/v4l2-subdev.h>
0015
0016 #define LM3646_NAME "lm3646"
0017 #define LM3646_I2C_ADDR_REV1    (0x67)
0018 #define LM3646_I2C_ADDR_REV0    (0x63)
0019
0020 /*  TOTAL FLASH Brightness Max
0021  *  min 93350uA, step 93750uA, max 1499600uA
0022  */
0023 #define LM3646_TOTAL_FLASH_BRT_MIN 93350
0024 #define LM3646_TOTAL_FLASH_BRT_STEP 93750
0025 #define LM3646_TOTAL_FLASH_BRT_MAX 1499600
0026 #define LM3646_TOTAL_FLASH_BRT_uA_TO_REG(a) \
0027     ((a) < LM3646_TOTAL_FLASH_BRT_MIN ? 0 : \
0028      ((((a) - LM3646_TOTAL_FLASH_BRT_MIN) / LM3646_TOTAL_FLASH_BRT_STEP)))
0029
0030 /*  TOTAL TORCH Brightness Max
0031  *  min 23040uA, step 23430uA, max 187100uA
0032  */
0033 #define LM3646_TOTAL_TORCH_BRT_MIN 23040
0034 #define LM3646_TOTAL_TORCH_BRT_STEP 23430
0035 #define LM3646_TOTAL_TORCH_BRT_MAX 187100
0036 #define LM3646_TOTAL_TORCH_BRT_uA_TO_REG(a) \
0037     ((a) < LM3646_TOTAL_TORCH_BRT_MIN ? 0 : \
0038      ((((a) - LM3646_TOTAL_TORCH_BRT_MIN) / LM3646_TOTAL_TORCH_BRT_STEP)))
0039
0040 /*  LED1 FLASH Brightness
0041  *  min 23040uA, step 11718uA, max 1499600uA
0042  */
0043 #define LM3646_LED1_FLASH_BRT_MIN 23040
0044 #define LM3646_LED1_FLASH_BRT_STEP 11718
0045 #define LM3646_LED1_FLASH_BRT_MAX 1499600
0046 #define LM3646_LED1_FLASH_BRT_uA_TO_REG(a)  \
0047     ((a) <= LM3646_LED1_FLASH_BRT_MIN ? 0 : \
0048      ((((a) - LM3646_LED1_FLASH_BRT_MIN) / LM3646_LED1_FLASH_BRT_STEP))+1)
0049
0050 /*  LED1 TORCH Brightness
0051  *  min 2530uA, step 1460uA, max 187100uA
0052  */
0053 #define LM3646_LED1_TORCH_BRT_MIN 2530
0054 #define LM3646_LED1_TORCH_BRT_STEP 1460
0055 #define LM3646_LED1_TORCH_BRT_MAX 187100
0056 #define LM3646_LED1_TORCH_BRT_uA_TO_REG(a)  \
0057     ((a) <= LM3646_LED1_TORCH_BRT_MIN ? 0 : \
0058      ((((a) - LM3646_LED1_TORCH_BRT_MIN) / LM3646_LED1_TORCH_BRT_STEP))+1)
0059
0060 /*  FLASH TIMEOUT DURATION
0061  *  min 50ms, step 50ms, max 400ms
0062  */
0063 #define LM3646_FLASH_TOUT_MIN 50
0064 #define LM3646_FLASH_TOUT_STEP 50
0065 #define LM3646_FLASH_TOUT_MAX 400
0066 #define LM3646_FLASH_TOUT_ms_TO_REG(a)  \
0067     ((a) <= LM3646_FLASH_TOUT_MIN ? 0 : \
0068      (((a) - LM3646_FLASH_TOUT_MIN) / LM3646_FLASH_TOUT_STEP))
0069
0070 /* struct lm3646_platform_data
0071  *
0072  * @flash_timeout: flash timeout
0073  * @led1_flash_brt: led1 flash mode brightness, uA
0074  * @led1_torch_brt: led1 torch mode brightness, uA
0075  */
0076 struct lm3646_platform_data {
0077
0078     u32 flash_timeout;
0079
0080     u32 led1_flash_brt;
0081     u32 led1_torch_brt;
0082 };
0083
0084 #endif /* __LM3646_H__ */